mirror of
https://github.com/sanni/cartreader.git
synced 2024-11-11 07:25:07 +01:00
2068 lines
53 KiB
C++
2068 lines
53 KiB
C++
//******************************************
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// NINTENDO 64
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//******************************************
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/******************************************
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Defines
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*****************************************/
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// These two macros toggle the eepDataPin/ControllerDataPin between input and output
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// External 1K pull-up resistor from eepDataPin to VCC required
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// 0x10 = 00010000 -> Port H Pin 4
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#define N64_HIGH DDRH &= ~0x10
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#define N64_LOW DDRH |= 0x10
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// Read the current state(0/1) of the eepDataPin
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#define N64_QUERY (PINH & 0x10)
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/******************************************
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Variables
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*****************************************/
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// Received N64 Eeprom data bits, 1 page
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bool tempBits[65];
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int eepPages;
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// Savetype
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byte saveType;
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// N64 Controller
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// 256 bits of received Controller data
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char N64_raw_dump[257];
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// Array that holds one Controller Pak block of 32 bytes
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byte myBlock[33];
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String rawStr = ""; // above char array read into a string
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struct {
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char stick_x;
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char stick_y;
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}
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N64_status;
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//stings that hold the buttons
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String button = "N/A";
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String lastbutton = "N/A";
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// Rom base address
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unsigned long romBase = 0x10000000;
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unsigned long sramBase = 0x08000000;
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// Flashram type
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byte flashramType = 1;
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boolean MN63F81MPN = false;
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/******************************************
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Menu
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*****************************************/
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// N64 controller menu items
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const char N64ContMenuItem1[] PROGMEM = "Test Controller";
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const char N64ContMenuItem2[] PROGMEM = "Read ControllerPak";
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const char N64ContMenuItem3[] PROGMEM = "Write ControllerPak";
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const char N64ContMenuItem4[] PROGMEM = "Reset";
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const char* const menuOptionsN64Controller[] PROGMEM = {N64ContMenuItem1, N64ContMenuItem2, N64ContMenuItem3, N64ContMenuItem4};
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// N64 cart menu items
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const char N64CartMenuItem1[] PROGMEM = "Read Rom";
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const char N64CartMenuItem2[] PROGMEM = "Read Save";
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const char N64CartMenuItem3[] PROGMEM = "Write Save";
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const char N64CartMenuItem4[] PROGMEM = "Reset";
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const char* const menuOptionsN64Cart[] PROGMEM = {N64CartMenuItem1, N64CartMenuItem2, N64CartMenuItem3, N64CartMenuItem4};
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// N64 CRC32 error menu items
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const char N64CRCMenuItem1[] PROGMEM = "Recalc CRC";
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const char N64CRCMenuItem2[] PROGMEM = "Redump";
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const char N64CRCMenuItem3[] PROGMEM = "Ignore";
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const char N64CRCMenuItem4[] PROGMEM = "Reset";
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const char* const menuOptionsN64CRC[] PROGMEM = {N64CRCMenuItem1, N64CRCMenuItem2, N64CRCMenuItem3, N64CRCMenuItem4};
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// N64 Controller Menu
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void n64ControllerMenu() {
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// create menu with title and 4 options to choose from
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unsigned char mainMenu;
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// Copy menuOptions out of progmem
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convertPgm(menuOptionsN64Controller, 4);
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mainMenu = question_box("N64 Controller", menuOptions, 4, 0);
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// wait for user choice to come back from the question box menu
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switch (mainMenu)
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{
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case 0:
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display_Clear();
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display_Update();
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readController();
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break;
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case 1:
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display_Clear();
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display_Update();
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readMPK();
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println_Msg(F(""));
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println_Msg(F("Press Button."));
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display_Update();
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wait();
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break;
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case 2:
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display_Clear();
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display_Update();
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// Change to root
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filePath[0] = '\0';
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sd.chdir("/");
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// Launch file browser
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fileBrowser("Select mpk file");
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display_Clear();
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display_Update();
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writeMPK();
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verifyMPK();
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println_Msg(F(""));
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println_Msg(F("Press Button."));
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display_Update();
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wait();
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break;
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case 3:
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asm volatile (" jmp 0");
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break;
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}
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}
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// N64 Cartridge Menu
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void n64CartMenu() {
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// create menu with title and 4 options to choose from
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unsigned char mainMenu;
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// Copy menuOptions out of progmem
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convertPgm(menuOptionsN64Cart, 4);
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mainMenu = question_box("N64 Cart Reader", menuOptions, 4, 0);
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// wait for user choice to come back from the question box menu
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switch (mainMenu)
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{
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case 0:
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sd.chdir("/");
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display_Clear();
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println_Msg(F("Reading Rom..."));
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display_Update();
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readRom_N64();
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break;
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case 1:
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sd.chdir("/");
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display_Clear();
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if (saveType == 1) {
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println_Msg(F("Reading Sram..."));
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display_Update();
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readSram(32768, 1);
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}
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else if (saveType == 4) {
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getFramType();
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println_Msg(F("Reading Flashram..."));
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display_Update();
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readFram(flashramType);
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}
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else if ((saveType == 5) || (saveType == 6)) {
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println_Msg(F("Reading Eep..."));
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display_Update();
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readEeprom();
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}
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else {
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print_Error(F("Savetype Error"), false);
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}
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println_Msg(F(""));
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println_Msg(F("Press Button..."));
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display_Update();
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wait();
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break;
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case 2:
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filePath[0] = '\0';
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sd.chdir("/");
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if (saveType == 1) {
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// Launch file browser
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fileBrowser("Select sra file");
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display_Clear();
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writeSram(32768);
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writeErrors = verifySram(32768, 1);
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if (writeErrors == 0) {
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println_Msg(F("Sram verified OK"));
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display_Update();
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}
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else {
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print_Msg(F("Error: "));
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print_Msg(writeErrors);
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println_Msg(F(" bytes "));
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print_Error(F("did not verify."), false);
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}
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}
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else if (saveType == 4) {
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// Launch file browser
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fileBrowser("Select fla file");
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display_Clear();
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getFramType();
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writeFram(flashramType);
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print_Msg(F("Verifying..."));
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display_Update();
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writeErrors = verifyFram(flashramType);
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if (writeErrors == 0) {
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println_Msg(F("OK"));
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display_Update();
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}
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else {
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println_Msg("");
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print_Msg(F("Error: "));
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print_Msg(writeErrors);
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println_Msg(F(" bytes "));
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print_Error(F("did not verify."), false);
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}
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}
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else if ((saveType == 5) || (saveType == 6)) {
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// Launch file browser
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fileBrowser("Select eep file");
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display_Clear();
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writeEeprom();
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writeErrors = verifyEeprom();
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if (writeErrors == 0) {
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println_Msg(F("Eeprom verified OK"));
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display_Update();
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}
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else {
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print_Msg(F("Error: "));
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print_Msg(writeErrors);
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println_Msg(F(" bytes "));
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print_Error(F("did not verify."), false);
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}
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}
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else {
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print_Error(F("Savetype Error"), false);
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}
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println_Msg(F("Press Button..."));
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display_Update();
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wait();
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break;
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case 3:
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asm volatile (" jmp 0");
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break;
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}
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}
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/******************************************
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Setup
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*****************************************/
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void setup_N64_Controller() {
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// Output a low signal
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PORTH &= ~(1 << 4);
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// Set Controller Data Pin(PH4) to Input
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DDRH &= ~(1 << 4);
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}
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void setup_N64_Cart() {
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// Set Address Pins to Output
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//A0-A7
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DDRF = 0xFF;
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//A8-A15
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DDRK = 0xFF;
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// Set Control Pins to Output WR(PH5) RD(PH6) aleL(PC0) aleH(PC1)
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DDRH |= (1 << 5) | (1 << 6);
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DDRC |= (1 << 0) | (1 << 1);
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// Output a high signal on all pins, pins are active low therefore everything is disabled now
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PORTH |= (1 << 5) | (1 << 6);
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PORTC |= (1 << 0) | (1 << 1);
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// Set Eeprom Clock Pin(PH1) to Output
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DDRH |= (1 << 1);
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// Output a high signal
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PORTH |= (1 << 1);
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// Set Eeprom Data Pin(PH4) to Input
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DDRH &= ~(1 << 4);
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// Activate Internal Pullup Resistors
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//PORTH |= (1 << 4);
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// Wait until all is stable
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delay(500);
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// Print start page
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getCartInfo_N64();
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if (cartSize != 0) {
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println_Msg(F("N64 Cartridge Info"));
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println_Msg(F(""));
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printName();
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print_Msg(F("ID: "));
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print_Msg(cartID);
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print_Msg(F(" Size: "));
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print_Msg(cartSize);
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println_Msg(F("MB"));
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print_Msg(F("Save: "));
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switch (saveType) {
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case 1:
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println_Msg(F("Sram"));
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break;
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case 4:
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println_Msg(F("Flashram"));
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break;
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case 5:
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println_Msg(F("4K Eeprom"));
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eepPages = 64;
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break;
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case 6:
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println_Msg(F("16K Eeprom"));
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eepPages = 256;
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break;
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default:
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println_Msg(F("unknown"));
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break;
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}
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print_Msg(F("Version: 1."));
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println_Msg(romVersion);
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// Wait for user input
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println_Msg(F(" "));
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println_Msg(F("Press Button..."));
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display_Update();
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wait();
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}
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else {
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println_Msg(F("GAMEPAK ERROR"));
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println_Msg("");
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printName();
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print_Msg(F("ID: "));
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println_Msg(cartID);
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println_Msg("");
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display_Update();
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print_Error(F("Cartridge unknown"), true);
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}
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}
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/******************************************
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Low level functions
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*****************************************/
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// Switch Cartridge address/data pins to write
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void adOut_N64() {
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//A0-A7
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DDRF = 0xFF;
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//A8-A15
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DDRK = 0xFF;
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}
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// Switch Cartridge address/data pins to read
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void adIn_N64() {
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//A0-A7
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DDRF = 0x00;
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//A8-A15
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DDRK = 0x00;
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}
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// Set Cartridge address
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void setAddress_N64(unsigned long myAddress) {
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// Split address into two words
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word myAdrLowOut = myAddress & 0xFFFF;
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word myAdrHighOut = myAddress >> 16;
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// Set address pins to output
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adOut_N64();
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// Switch WR(PH5) RD(PH6) ale_L(PC0) ale_H(PC1) to high (since the pins are active low)
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PORTH |= (1 << 5) | (1 << 6);
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PORTC |= (1 << 0) | (1 << 1);
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// Output high part to address pins
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PORTF = myAdrHighOut & 0xFF;
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PORTK = (myAdrHighOut >> 8) & 0xFF;
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// Leave ale_H high for additional 120ns
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__asm__("nop\n\t""nop\n\t");
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// Pull ale_H(PC1) low
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PORTC &= ~(1 << 1);
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// Leave address pins stable for a little bit
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__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t");
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// Output low part to address pins
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PORTF = myAdrLowOut & 0xFF;
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PORTK = (myAdrLowOut >> 8) & 0xFF;
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// Leave ale_L high for ~180ns
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__asm__("nop\n\t""nop\n\t""nop\n\t");
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// Pull ale_L(PC0) low
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PORTC &= ~(1 << 0);
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// Leave address pins stable for a little bit
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__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t");
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// Set data pins to input
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adIn_N64();
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// Wait ~600ns just to be sure address is set
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__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t");
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}
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// Read one word out of the cartridge
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word readWord_N64() {
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// Pull read(PH6) low
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PORTH &= ~(1 << 6);
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// Wait ~300ns
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__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t");
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// Join bytes from PINF and PINK into a word
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word tempWord = ( ( PINK & 0xFF ) << 8 ) | ( PINF & 0xFF );
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// Pull read(PH6) high
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PORTH |= (1 << 6);
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return tempWord;
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}
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// Write one word to data pins of the cartridge
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void writeWord_N64(word myWord) {
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// Set address pins to output
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adOut_N64();
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// Output word to AD0-AD15
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PORTF = myWord & 0xFF;
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PORTK = (myWord >> 8) & 0xFF;
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// Wait ~62.5ns
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__asm__("nop\n\t");
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// Pull write(PH5) low
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PORTH &= ~(1 << 5);
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// Wait ~310ns
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__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t");
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// Pull write(PH5) high
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PORTH |= (1 << 5);
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// Wait ~125ns
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__asm__("nop\n\t""nop\n\t");
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// Set data pins to input
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adIn_N64();
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}
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/******************************************
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N64 Controller CRC Functions
|
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*****************************************/
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static word addrCRC(word address) {
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// CRC table
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word xor_table[16] = { 0x0, 0x0, 0x0, 0x0, 0x0, 0x15, 0x1F, 0x0B, 0x16, 0x19, 0x07, 0x0E, 0x1C, 0x0D, 0x1A, 0x01 };
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word crc = 0;
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// Make sure we have a valid address
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address &= ~0x1F;
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// Go through each bit in the address, and if set, xor the right value into the output
|
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for (int i = 15; i >= 5; i--) {
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// Is this bit set?
|
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if ( ((address >> i) & 0x1)) {
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crc ^= xor_table[i];
|
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}
|
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}
|
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// Just in case
|
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crc &= 0x1F;
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// Create a new address with the CRC appended
|
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return address | crc;
|
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}
|
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|
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static byte dataCRC(byte * data) {
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byte ret = 0;
|
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for (byte i = 0; i <= 32; i++) {
|
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for (byte j = 7; j >= 0; j--) {
|
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int tmp = 0;
|
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if (ret & 0x80) {
|
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tmp = 0x85;
|
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}
|
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ret <<= 1;
|
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if ( i < 32 ) {
|
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if (data[i] & (0x01 << j)) {
|
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ret |= 0x1;
|
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}
|
||
}
|
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ret ^= tmp;
|
||
}
|
||
}
|
||
return ret;
|
||
}
|
||
|
||
/******************************************
|
||
N64 Controller Protocol Functions
|
||
*****************************************/
|
||
void N64_send(unsigned char *buffer, char length) {
|
||
// Send these bytes
|
||
char bits;
|
||
bool bit;
|
||
|
||
// This routine is very carefully timed by examining the assembly output.
|
||
// Do not change any statements, it could throw the timings off
|
||
//
|
||
// We get 16 cycles per microsecond, which should be plenty, but we need to
|
||
// be conservative. Most assembly ops take 1 cycle, but a few take 2
|
||
//
|
||
// I use manually constructed for-loops out of gotos so I have more control
|
||
// over the outputted assembly. I can insert nops where it was impossible
|
||
// with a for loop
|
||
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asm volatile (";Starting outer for loop");
|
||
outer_loop:
|
||
{
|
||
asm volatile (";Starting inner for loop");
|
||
bits = 8;
|
||
inner_loop:
|
||
{
|
||
// Starting a bit, set the line low
|
||
asm volatile (";Setting line to low");
|
||
N64_LOW; // 1 op, 2 cycles
|
||
|
||
asm volatile (";branching");
|
||
if (*buffer >> 7) {
|
||
asm volatile (";Bit is a 1");
|
||
// 1 bit
|
||
// remain low for 1us, then go high for 3us
|
||
// nop block 1
|
||
asm volatile ("nop\nnop\nnop\nnop\nnop\n");
|
||
|
||
asm volatile (";Setting line to high");
|
||
N64_HIGH;
|
||
|
||
// nop block 2
|
||
// we'll wait only 2us to sync up with both conditions
|
||
// at the bottom of the if statement
|
||
asm volatile ("nop\nnop\nnop\nnop\nnop\n"
|
||
"nop\nnop\nnop\nnop\nnop\n"
|
||
"nop\nnop\nnop\nnop\nnop\n"
|
||
"nop\nnop\nnop\nnop\nnop\n"
|
||
"nop\nnop\nnop\nnop\nnop\n"
|
||
"nop\nnop\nnop\nnop\nnop\n"
|
||
);
|
||
|
||
}
|
||
else {
|
||
asm volatile (";Bit is a 0");
|
||
// 0 bit
|
||
// remain low for 3us, then go high for 1us
|
||
// nop block 3
|
||
asm volatile ("nop\nnop\nnop\nnop\nnop\n"
|
||
"nop\nnop\nnop\nnop\nnop\n"
|
||
"nop\nnop\nnop\nnop\nnop\n"
|
||
"nop\nnop\nnop\nnop\nnop\n"
|
||
"nop\nnop\nnop\nnop\nnop\n"
|
||
"nop\nnop\nnop\nnop\nnop\n"
|
||
"nop\nnop\nnop\nnop\nnop\n"
|
||
"nop\n");
|
||
|
||
asm volatile (";Setting line to high");
|
||
N64_HIGH;
|
||
|
||
// wait for 1us
|
||
asm volatile ("; end of conditional branch, need to wait 1us more before next bit");
|
||
|
||
}
|
||
// end of the if, the line is high and needs to remain
|
||
// high for exactly 16 more cycles, regardless of the previous
|
||
// branch path
|
||
|
||
asm volatile (";finishing inner loop body");
|
||
--bits;
|
||
if (bits != 0) {
|
||
// nop block 4
|
||
// this block is why a for loop was impossible
|
||
asm volatile ("nop\nnop\nnop\nnop\nnop\n"
|
||
"nop\nnop\nnop\nnop\n");
|
||
// rotate bits
|
||
asm volatile (";rotating out bits");
|
||
*buffer <<= 1;
|
||
|
||
goto inner_loop;
|
||
} // fall out of inner loop
|
||
}
|
||
asm volatile (";continuing outer loop");
|
||
// In this case: the inner loop exits and the outer loop iterates,
|
||
// there are /exactly/ 16 cycles taken up by the necessary operations.
|
||
// So no nops are needed here (that was lucky!)
|
||
--length;
|
||
if (length != 0) {
|
||
++buffer;
|
||
goto outer_loop;
|
||
} // fall out of outer loop
|
||
}
|
||
}
|
||
|
||
void N64_stop() {
|
||
// send a single stop (1) bit
|
||
// nop block 5
|
||
asm volatile ("nop\nnop\nnop\nnop\n");
|
||
N64_LOW;
|
||
// wait 1 us, 16 cycles, then raise the line
|
||
// 16-2=14
|
||
// nop block 6
|
||
asm volatile ("nop\nnop\nnop\nnop\nnop\n"
|
||
"nop\nnop\nnop\nnop\nnop\n"
|
||
"nop\nnop\nnop\nnop\n");
|
||
N64_HIGH;
|
||
}
|
||
|
||
void N64_get(word bitcount) {
|
||
// listen for the expected bitcount/8 bytes of data back from the controller and
|
||
// blast it out to the N64_raw_dump array, one bit per byte for extra speed.
|
||
asm volatile (";Starting to listen");
|
||
unsigned char timeout;
|
||
char *bitbin = N64_raw_dump;
|
||
|
||
// Again, using gotos here to make the assembly more predictable and
|
||
// optimization easier (please don't kill me)
|
||
read_loop:
|
||
timeout = 0x3f;
|
||
// wait for line to go low
|
||
while (N64_QUERY) {
|
||
if (!--timeout)
|
||
return;
|
||
}
|
||
// wait approx 2us and poll the line
|
||
asm volatile (
|
||
"nop\nnop\nnop\nnop\nnop\n"
|
||
"nop\nnop\nnop\nnop\nnop\n"
|
||
"nop\nnop\nnop\nnop\nnop\n"
|
||
"nop\nnop\nnop\nnop\nnop\n"
|
||
"nop\nnop\nnop\nnop\nnop\n"
|
||
"nop\nnop\nnop\nnop\nnop\n"
|
||
);
|
||
*bitbin = N64_QUERY;
|
||
++bitbin;
|
||
--bitcount;
|
||
if (bitcount == 0)
|
||
return;
|
||
|
||
// wait for line to go high again
|
||
// it may already be high, so this should just drop through
|
||
timeout = 0x3f;
|
||
while (!N64_QUERY) {
|
||
if (!--timeout)
|
||
return;
|
||
}
|
||
goto read_loop;
|
||
}
|
||
|
||
/******************************************
|
||
N64 Controller Functions
|
||
*****************************************/
|
||
void get_button()
|
||
{
|
||
// Command to send to the gamecube
|
||
// The last bit is rumble, flip it to rumble
|
||
// yes this does need to be inside the loop, the
|
||
// array gets mutilated when it goes through N64_send
|
||
unsigned char command[] = {
|
||
0x01
|
||
};
|
||
|
||
// don't want interrupts getting in the way
|
||
noInterrupts();
|
||
// send those 3 bytes
|
||
N64_send(command, 1);
|
||
N64_stop();
|
||
// read in 32bits of data and dump it to N64_raw_dump
|
||
N64_get(32);
|
||
// end of time sensitive code
|
||
interrupts();
|
||
|
||
// The get_N64_status function sloppily dumps its data 1 bit per byte
|
||
// into the get_status_extended char array. It's our job to go through
|
||
// that and put each piece neatly into the struct N64_status
|
||
int i;
|
||
memset(&N64_status, 0, sizeof(N64_status));
|
||
|
||
// bits: joystick x value
|
||
// These are 8 bit values centered at 0x80 (128)
|
||
for (i = 0; i < 8; i++) {
|
||
N64_status.stick_x |= N64_raw_dump[16 + i] ? (0x80 >> i) : 0;
|
||
}
|
||
for (i = 0; i < 8; i++) {
|
||
N64_status.stick_y |= N64_raw_dump[24 + i] ? (0x80 >> i) : 0;
|
||
}
|
||
|
||
// read char array N64_raw_dump into string rawStr
|
||
rawStr = "";
|
||
for (i = 0; i < 16; i++) {
|
||
rawStr = rawStr + String(N64_raw_dump[i], DEC);
|
||
}
|
||
|
||
// Buttons (A,B,Z,S,DU,DD,DL,DR,0,0,L,R,CU,CD,CL,CR)
|
||
if (rawStr.substring(0, 16) == "0000000000000000") {
|
||
lastbutton = button;
|
||
button = "Press a button";
|
||
}
|
||
else
|
||
{
|
||
for (int i = 0; i < 16; i++)
|
||
{
|
||
// seems to be 16, 8 or 4 depending on what pin is used
|
||
if (N64_raw_dump[i] == 16)
|
||
{
|
||
switch (i)
|
||
{
|
||
case 7:
|
||
button = "D-Right";
|
||
break;
|
||
|
||
case 6:
|
||
button = "D-Left";
|
||
break;
|
||
|
||
case 5:
|
||
button = "D-Down";
|
||
break;
|
||
|
||
case 4:
|
||
button = "D-Up";
|
||
break;
|
||
|
||
case 3:
|
||
button = "START";
|
||
break;
|
||
|
||
case 2:
|
||
button = "Z";
|
||
break;
|
||
|
||
case 1:
|
||
button = "B";
|
||
break;
|
||
|
||
case 0:
|
||
button = "A";
|
||
break;
|
||
|
||
case 15:
|
||
button = "C-Right";
|
||
break;
|
||
|
||
case 14:
|
||
button = "C-Left";
|
||
break;
|
||
|
||
case 13:
|
||
button = "C-Down";
|
||
break;
|
||
|
||
case 12:
|
||
button = "C-Up";
|
||
break;
|
||
|
||
case 11:
|
||
button = "R";
|
||
break;
|
||
|
||
case 10:
|
||
button = "L";
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
void readController() {
|
||
bool quit = 1;
|
||
|
||
while (quit) {
|
||
display_Clear();
|
||
|
||
// Get Button and analog stick
|
||
get_button();
|
||
|
||
println_Msg(F("Controller Test"));
|
||
println_Msg("");
|
||
println_Msg(button);
|
||
println_Msg("");
|
||
String stickx = String("X: " + String(N64_status.stick_x, DEC) + " ");
|
||
println_Msg(stickx);
|
||
String sticky = String("Y: " + String(N64_status.stick_y, DEC) + " ");
|
||
println_Msg(sticky);
|
||
println_Msg("");
|
||
println_Msg(F("Press START to quit"));
|
||
|
||
display_Update();
|
||
delay(100);
|
||
|
||
if (button == "START") {
|
||
quit = 0;
|
||
}
|
||
}
|
||
}
|
||
|
||
/******************************************
|
||
N64 Controller Pak Functions
|
||
(connected via Controller)
|
||
*****************************************/
|
||
// read 32bytes from controller pak
|
||
void readBlock(word myAddress) {
|
||
// Calculate the address CRC
|
||
word myAddressCRC = addrCRC(myAddress);
|
||
|
||
// Read Controller Pak command
|
||
unsigned char command[] = {0x02};
|
||
// Address Command
|
||
unsigned char addressHigh[] = {(unsigned char)(myAddressCRC >> 8)};
|
||
unsigned char addressLow[] = {(unsigned char)(myAddressCRC & 0xff)};
|
||
|
||
// don't want interrupts getting in the way
|
||
noInterrupts();
|
||
// send those 3 bytes
|
||
N64_send(command, 1);
|
||
N64_send(addressHigh, 1);
|
||
N64_send(addressLow, 1);
|
||
N64_stop();
|
||
// read in data
|
||
N64_get(256);
|
||
// end of time sensitive code
|
||
interrupts();
|
||
|
||
// Empty N64_raw_dump into myBlock
|
||
for (word i = 0; i < 256; i += 8) {
|
||
boolean byteFlipped[9];
|
||
|
||
// Flip byte order
|
||
byteFlipped[0] = N64_raw_dump[i + 7];
|
||
byteFlipped[1] = N64_raw_dump[i + 6];
|
||
byteFlipped[2] = N64_raw_dump[i + 5];
|
||
byteFlipped[3] = N64_raw_dump[i + 4];
|
||
byteFlipped[4] = N64_raw_dump[i + 3];
|
||
byteFlipped[5] = N64_raw_dump[i + 2];
|
||
byteFlipped[6] = N64_raw_dump[i + 1];
|
||
byteFlipped[7] = N64_raw_dump[i + 0];
|
||
|
||
// Join bits into one byte
|
||
unsigned char myByte = 0;
|
||
for (byte j = 0; j < 8; ++j) {
|
||
if (byteFlipped[j]) {
|
||
myByte |= 1 << j;
|
||
}
|
||
}
|
||
// Save byte into block array
|
||
myBlock[i / 8] = myByte;
|
||
}
|
||
}
|
||
|
||
// reads the MPK file to the sd card
|
||
void readMPK() {
|
||
// Change to root
|
||
sd.chdir("/");
|
||
// Change to MPK directory
|
||
sd.chdir("MPK");
|
||
|
||
// Get name, add extension and convert to char array for sd lib
|
||
EEPROM_readAnything(0, foldern);
|
||
sprintf(fileName, "%d", foldern);
|
||
strcat(fileName, ".mpk");
|
||
|
||
// write new folder number back to eeprom
|
||
foldern = foldern + 1;
|
||
EEPROM_writeAnything(0, foldern);
|
||
|
||
//open file on sd card
|
||
if (!myFile.open(fileName, O_RDWR | O_CREAT)) {
|
||
print_Error(F("Can't open file on SD"), true);
|
||
}
|
||
|
||
println_Msg(F("Please wait..."));
|
||
display_Update();
|
||
|
||
// Controller paks, which all have 32kB of space, are mapped between 0x0000 – 0x7FFF
|
||
for (word i = 0x0000; i < 0x8000; i += 32) {
|
||
// Read one block of the Controller Pak into array myBlock
|
||
readBlock(i);
|
||
// Write block to SD card
|
||
for (byte j = 0; j < 32; j++) {
|
||
myFile.write(myBlock[j]);
|
||
}
|
||
}
|
||
// Close the file:
|
||
myFile.close();
|
||
print_Msg(F("Saved as /MPK/"));
|
||
println_Msg(fileName);
|
||
display_Update();
|
||
}
|
||
|
||
void writeMPK() {
|
||
// Create filepath
|
||
sprintf(filePath, "%s/%s", filePath, fileName);
|
||
println_Msg(F("Writing..."));
|
||
println_Msg(filePath);
|
||
display_Update();
|
||
|
||
// Open file on sd card
|
||
if (myFile.open(filePath, O_READ)) {
|
||
for (word myAddress = 0x0000; myAddress < 0x8000; myAddress += 32) {
|
||
// Read 32 bytes into SD buffer
|
||
myFile.read(sdBuffer, 32);
|
||
|
||
// Calculate the address CRC
|
||
word myAddressCRC = addrCRC(myAddress);
|
||
|
||
// Write Controller Pak command
|
||
unsigned char command[] = {0x03};
|
||
// Address Command
|
||
unsigned char addressHigh[] = {(unsigned char)(myAddressCRC >> 8)};
|
||
unsigned char addressLow[] = {(unsigned char)(myAddressCRC & 0xff)};
|
||
|
||
// don't want interrupts getting in the way
|
||
noInterrupts();
|
||
// Send write command
|
||
N64_send(command, 1);
|
||
// Send block number
|
||
N64_send(addressHigh, 1);
|
||
N64_send(addressLow, 1);
|
||
// Send data to write
|
||
N64_send(sdBuffer, 32);
|
||
// Send stop
|
||
N64_stop();
|
||
// Enable interrupts
|
||
interrupts();
|
||
}
|
||
// Close the file:
|
||
myFile.close();
|
||
println_Msg(F("Done"));
|
||
display_Update();
|
||
}
|
||
else {
|
||
print_Error(F("Can't create file on SD"), true);
|
||
}
|
||
}
|
||
|
||
// verifies if write was successful
|
||
void verifyMPK() {
|
||
writeErrors = 0;
|
||
|
||
println_Msg(F("Verifying..."));
|
||
display_Update();
|
||
|
||
//open file on sd card
|
||
if (!myFile.open(filePath, O_RDWR | O_CREAT)) {
|
||
print_Error(F("Can't create file on SD"), true);
|
||
}
|
||
|
||
// Controller paks, which all have 32kB of space, are mapped between 0x0000 – 0x7FFF
|
||
for (word i = 0x0000; i < 0x8000; i += 32) {
|
||
// Read one block of the Controller Pak into array myBlock
|
||
readBlock(i);
|
||
// Check against file on SD card
|
||
for (byte j = 0; j < 32; j++) {
|
||
if (myFile.read() != myBlock[j]) {
|
||
writeErrors++;
|
||
}
|
||
}
|
||
}
|
||
// Close the file:
|
||
myFile.close();
|
||
if (writeErrors == 0) {
|
||
println_Msg(F("OK"));
|
||
display_Update();
|
||
}
|
||
else {
|
||
print_Msg(F("Error: "));
|
||
print_Msg(writeErrors);
|
||
println_Msg(F(" bytes "));
|
||
print_Error(F("did not verify."), false);
|
||
}
|
||
}
|
||
|
||
/******************************************
|
||
N64 Cartridge functions
|
||
*****************************************/
|
||
// CRC32 lookup table
|
||
static const uint32_t crc_32_tab[] PROGMEM = { /* CRC polynomial 0xedb88320 */
|
||
0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419, 0x706af48f,
|
||
0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4, 0xe0d5e91e, 0x97d2d988,
|
||
0x09b64c2b, 0x7eb17cbd, 0xe7b82d07, 0x90bf1d91, 0x1db71064, 0x6ab020f2,
|
||
0xf3b97148, 0x84be41de, 0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7,
|
||
0x136c9856, 0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
|
||
0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4, 0xa2677172,
|
||
0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b, 0x35b5a8fa, 0x42b2986c,
|
||
0xdbbbc9d6, 0xacbcf940, 0x32d86ce3, 0x45df5c75, 0xdcd60dcf, 0xabd13d59,
|
||
0x26d930ac, 0x51de003a, 0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423,
|
||
0xcfba9599, 0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
|
||
0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190, 0x01db7106,
|
||
0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f, 0x9fbfe4a5, 0xe8b8d433,
|
||
0x7807c9a2, 0x0f00f934, 0x9609a88e, 0xe10e9818, 0x7f6a0dbb, 0x086d3d2d,
|
||
0x91646c97, 0xe6635c01, 0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e,
|
||
0x6c0695ed, 0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
|
||
0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3, 0xfbd44c65,
|
||
0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2, 0x4adfa541, 0x3dd895d7,
|
||
0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a, 0x346ed9fc, 0xad678846, 0xda60b8d0,
|
||
0x44042d73, 0x33031de5, 0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa,
|
||
0xbe0b1010, 0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
|
||
0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17, 0x2eb40d81,
|
||
0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6, 0x03b6e20c, 0x74b1d29a,
|
||
0xead54739, 0x9dd277af, 0x04db2615, 0x73dc1683, 0xe3630b12, 0x94643b84,
|
||
0x0d6d6a3e, 0x7a6a5aa8, 0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1,
|
||
0xf00f9344, 0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
|
||
0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a, 0x67dd4acc,
|
||
0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5, 0xd6d6a3e8, 0xa1d1937e,
|
||
0x38d8c2c4, 0x4fdff252, 0xd1bb67f1, 0xa6bc5767, 0x3fb506dd, 0x48b2364b,
|
||
0xd80d2bda, 0xaf0a1b4c, 0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55,
|
||
0x316e8eef, 0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
|
||
0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe, 0xb2bd0b28,
|
||
0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31, 0x2cd99e8b, 0x5bdeae1d,
|
||
0x9b64c2b0, 0xec63f226, 0x756aa39c, 0x026d930a, 0x9c0906a9, 0xeb0e363f,
|
||
0x72076785, 0x05005713, 0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38,
|
||
0x92d28e9b, 0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
|
||
0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1, 0x18b74777,
|
||
0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c, 0x8f659eff, 0xf862ae69,
|
||
0x616bffd3, 0x166ccf45, 0xa00ae278, 0xd70dd2ee, 0x4e048354, 0x3903b3c2,
|
||
0xa7672661, 0xd06016f7, 0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc,
|
||
0x40df0b66, 0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
|
||
0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605, 0xcdd70693,
|
||
0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8, 0x5d681b02, 0x2a6f2b94,
|
||
0xb40bbe37, 0xc30c8ea1, 0x5a05df1b, 0x2d02ef8d
|
||
};
|
||
|
||
// Calculate dumped rom's CRC32
|
||
inline uint32_t updateCRC32(uint8_t ch, uint32_t crc) {
|
||
uint32_t idx = ((crc) ^ (ch)) & 0xff;
|
||
uint32_t tab_value = pgm_read_dword(crc_32_tab + idx);
|
||
return tab_value ^ ((crc) >> 8);
|
||
}
|
||
|
||
// Read rom from sd
|
||
uint32_t crc32() {
|
||
if (myFile.open(fileName, O_READ)) {
|
||
uint32_t oldcrc32 = 0xFFFFFFFF;
|
||
|
||
for (unsigned long currByte = 0; currByte < cartSize * 2048; currByte++) {
|
||
myFile.read(sdBuffer, 512);
|
||
for (int c = 0; c < 512; c++) {
|
||
oldcrc32 = updateCRC32(sdBuffer[c], oldcrc32);
|
||
}
|
||
}
|
||
// Close the file:
|
||
myFile.close();
|
||
return ~oldcrc32;
|
||
}
|
||
else {
|
||
print_Error(F("File not found"), true);
|
||
}
|
||
}
|
||
|
||
// look-up the calculated crc in the file n64.txt on sd card
|
||
boolean searchCRC(char crcStr[9]) {
|
||
boolean result = 0;
|
||
char tempStr2[2];
|
||
char tempStr1[9];
|
||
char tempStr[5];
|
||
|
||
// Change to root dir
|
||
sd.chdir("/");
|
||
|
||
if (myFile.open("n64.txt", O_READ)) {
|
||
// Loop through file
|
||
while (myFile.available()) {
|
||
// Read 8 bytes into String, do it one at a time so byte order doesn't get mixed up
|
||
sprintf(tempStr1, "%c", myFile.read());
|
||
for (byte i = 0; i < 7; i++) {
|
||
sprintf(tempStr2, "%c", myFile.read());
|
||
strcat(tempStr1, tempStr2);
|
||
}
|
||
|
||
// Check if string is a match
|
||
if (strcmp(tempStr1, crcStr) == 0) {
|
||
// Skip the , in the file
|
||
myFile.seekSet(myFile.curPosition() + 1);
|
||
|
||
// Read 4 bytes into String, do it one at a time so byte order doesn't get mixed up
|
||
sprintf(tempStr, "%c", myFile.read());
|
||
for (byte i = 0; i < 3; i++) {
|
||
sprintf(tempStr2, "%c", myFile.read());
|
||
strcat(tempStr, tempStr2);
|
||
}
|
||
|
||
if (strcmp(tempStr, cartID) == 0) {
|
||
result = 1;
|
||
break;
|
||
}
|
||
else {
|
||
result = 0;
|
||
break;
|
||
}
|
||
}
|
||
// If no match, empty string, advance by 12 and try again
|
||
else {
|
||
myFile.seekSet(myFile.curPosition() + 12);
|
||
}
|
||
}
|
||
// Close the file:
|
||
myFile.close();
|
||
return result;
|
||
}
|
||
else {
|
||
print_Error(F("N64.txt missing"), true);
|
||
}
|
||
}
|
||
|
||
// look-up cart id in file n64.txt on sd card
|
||
void getCartInfo_N64() {
|
||
char tempStr2[2];
|
||
char tempStr[5];
|
||
char sizeStr[3];
|
||
char saveStr[2];
|
||
|
||
// cart not in list
|
||
cartSize = 0;
|
||
saveType = 0;
|
||
|
||
// Read cart id
|
||
idCart();
|
||
|
||
if (myFile.open("n64.txt", O_READ)) {
|
||
// Skip over the first crc
|
||
myFile.seekSet(myFile.curPosition() + 9);
|
||
// Loop through file
|
||
while (myFile.available()) {
|
||
// Read 4 bytes into String, do it one at a time so byte order doesn't get mixed up
|
||
sprintf(tempStr, "%c", myFile.read());
|
||
for (byte i = 0; i < 3; i++) {
|
||
sprintf(tempStr2, "%c", myFile.read());
|
||
strcat(tempStr, tempStr2);
|
||
}
|
||
|
||
// Check if string is a match
|
||
if (strcmp(tempStr, cartID) == 0) {
|
||
// Skip the , in the file
|
||
myFile.seekSet(myFile.curPosition() + 1);
|
||
|
||
// Read the next ascii character and subtract 48 to convert to decimal
|
||
cartSize = myFile.read() - 48;
|
||
// Remove leading 0 for single digit cart sizes
|
||
if (cartSize != 0) {
|
||
cartSize = cartSize * 10 + myFile.read() - 48;
|
||
}
|
||
else {
|
||
cartSize = myFile.read() - 48;
|
||
}
|
||
|
||
// Skip the , in the file
|
||
myFile.seekSet(myFile.curPosition() + 1);
|
||
|
||
// Read the next ascii character and subtract 48 to convert to decimal
|
||
saveType = myFile.read() - 48;
|
||
}
|
||
// If no match, empty string, advance by 16 and try again
|
||
else {
|
||
myFile.seekSet(myFile.curPosition() + 16);
|
||
}
|
||
}
|
||
// Close the file:
|
||
myFile.close();
|
||
}
|
||
else {
|
||
print_Error(F("N64.txt missing"), true);
|
||
}
|
||
}
|
||
|
||
// Read rom ID
|
||
void idCart() {
|
||
// Set address
|
||
setAddress_N64(romBase + 0x3A);
|
||
|
||
// Split word
|
||
word myWord = readWord_N64();
|
||
byte loByte = myWord & 0xFF;
|
||
byte hiByte = myWord >> 8;
|
||
|
||
// First letter is always N or C
|
||
cartID[0] = loByte;
|
||
|
||
// Split word
|
||
myWord = readWord_N64();
|
||
loByte = myWord & 0xFF;
|
||
hiByte = myWord >> 8;
|
||
|
||
// Game ID
|
||
cartID[1] = char(hiByte);
|
||
cartID[2] = char(loByte);
|
||
|
||
// Split word
|
||
myWord = readWord_N64();
|
||
loByte = myWord & 0xFF;
|
||
hiByte = myWord >> 8;
|
||
|
||
// Country Code
|
||
cartID[3] = char(hiByte);
|
||
|
||
// Get rom version
|
||
romVersion = loByte;
|
||
}
|
||
|
||
// Read name out of rom
|
||
void printName() {
|
||
// Set the address for the next 512 bytes
|
||
setAddress_N64(romBase + 0x20);
|
||
|
||
// Dump name into 8.3 compatible format
|
||
byte myLength = 0;
|
||
|
||
for (unsigned int i = 0; i < 20; i += 2) {
|
||
// split word
|
||
word myWord = readWord_N64();
|
||
byte loByte = myWord & 0xFF;
|
||
byte hiByte = myWord >> 8;
|
||
|
||
if (((char(hiByte) >= 48 && char(hiByte) <= 57) || (char(hiByte) >= 65 && char(hiByte) <= 122)) && myLength < 8) {
|
||
romName[myLength] = char(hiByte);
|
||
myLength++;
|
||
}
|
||
|
||
if (((char(loByte) >= 48 && char(loByte) <= 57) || (char(loByte) >= 65 && char(loByte) <= 122)) && myLength < 8) {
|
||
romName[myLength] = char(loByte);
|
||
myLength++;
|
||
}
|
||
}
|
||
print_Msg(F("Name: "));
|
||
println_Msg(romName);
|
||
display_Update();
|
||
}
|
||
|
||
/******************************************
|
||
Eeprom functions
|
||
*****************************************/
|
||
// Send a clock pulse of 2us length, 50% duty, 500kHz
|
||
void pulseClock_N64(unsigned int times) {
|
||
for (unsigned int i = 0; i < (times * 2); i++) {
|
||
// Switch the clock pin to 0 if it's 1 and 0 if it's 1
|
||
PORTH ^= (1 << 1);
|
||
// without the delay the clock pulse would be 1.5us and 666kHz
|
||
//__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t"));
|
||
}
|
||
}
|
||
|
||
// Send one byte of data to eeprom
|
||
void sendData(byte data) {
|
||
for (byte i = 0; i < 8; i++) {
|
||
// pull data line low
|
||
N64_LOW;
|
||
|
||
// if current bit is 1, pull high after ~1us, 2 cycles
|
||
if (data >> 7) {
|
||
pulseClock_N64(2);
|
||
N64_HIGH;
|
||
pulseClock_N64(6);
|
||
}
|
||
// if current bit is 0 pull high after ~3us, 6 cycles
|
||
else {
|
||
pulseClock_N64(6);
|
||
N64_HIGH;
|
||
pulseClock_N64(2);
|
||
}
|
||
|
||
// rotate to the next bit
|
||
data <<= 1;
|
||
}
|
||
}
|
||
|
||
// Send stop bit to eeprom
|
||
void sendStop() {
|
||
N64_LOW;
|
||
pulseClock_N64(2);
|
||
N64_HIGH;
|
||
pulseClock_N64(4);
|
||
}
|
||
|
||
// Capture 8 bytes in 64 bits into bit array tempBits
|
||
void readData() {
|
||
for (byte i = 0; i < 64; i++) {
|
||
|
||
// pulse clock until we get response from eeprom
|
||
while (N64_QUERY) {
|
||
pulseClock_N64(1);
|
||
}
|
||
|
||
// Skip over the 1us low part of a high bit
|
||
pulseClock_N64(3);
|
||
|
||
// Read bit
|
||
tempBits[i] = N64_QUERY;
|
||
|
||
// wait for line to go high again
|
||
while (!N64_QUERY) {
|
||
pulseClock_N64(1);
|
||
}
|
||
}
|
||
}
|
||
|
||
// Write Eeprom to cartridge
|
||
void writeEeprom() {
|
||
if ((saveType == 5) || (saveType == 6)) {
|
||
|
||
// Create filepath
|
||
sprintf(filePath, "%s/%s", filePath, fileName);
|
||
println_Msg(F("Writing..."));
|
||
println_Msg(filePath);
|
||
display_Update();
|
||
|
||
// Open file on sd card
|
||
if (myFile.open(filePath, O_READ)) {
|
||
|
||
for (byte i = 0; i < (eepPages / 64); i++) {
|
||
myFile.read(sdBuffer, 512);
|
||
|
||
for (byte pageNumber = 0; pageNumber < 64; pageNumber++) {
|
||
// Disable interrupts for more uniform clock pulses
|
||
noInterrupts();
|
||
|
||
// Wait ~50ms between page writes or eeprom will have write errors
|
||
pulseClock_N64(26000);
|
||
|
||
// Send write command
|
||
sendData(0x05);
|
||
// Send page number
|
||
sendData(pageNumber + (i * 64));
|
||
// Send data to write
|
||
for (byte j = 0; j < 8; j++) {
|
||
sendData(sdBuffer[(pageNumber * 8) + j]);
|
||
}
|
||
sendStop();
|
||
|
||
interrupts();
|
||
}
|
||
}
|
||
// Close the file:
|
||
myFile.close();
|
||
println_Msg(F("Done"));
|
||
display_Update();
|
||
}
|
||
else {
|
||
print_Error(F("SD Error"), true);
|
||
}
|
||
}
|
||
else {
|
||
print_Error(F("Savetype Error"), true);
|
||
}
|
||
}
|
||
|
||
// Dump Eeprom to SD
|
||
void readEeprom() {
|
||
if ((saveType == 5) || (saveType == 6)) {
|
||
|
||
// Wait 0.6ms
|
||
pulseClock_N64(300);
|
||
|
||
// Get name, add extension and convert to char array for sd lib
|
||
strcpy(fileName, romName);
|
||
strcat(fileName, ".eep");
|
||
|
||
// create a new folder for the save file
|
||
EEPROM_readAnything(0, foldern);
|
||
sprintf(folder, "SAVE/%s/%d", romName, foldern);
|
||
sd.mkdir(folder, true);
|
||
sd.chdir(folder);
|
||
|
||
// write new folder number back to eeprom
|
||
foldern = foldern + 1;
|
||
EEPROM_writeAnything(0, foldern);
|
||
|
||
// Open file on sd card
|
||
if (!myFile.open(fileName, O_RDWR | O_CREAT)) {
|
||
print_Error(F("Can't create file on SD"), true);
|
||
}
|
||
|
||
for (byte i = 0; i < (eepPages / 64); i++) {
|
||
for (byte pageNumber = 0; pageNumber < 64; pageNumber++) {
|
||
// Disable interrupts for more uniform clock pulses
|
||
noInterrupts();
|
||
|
||
// Send read command
|
||
sendData(0x04);
|
||
// Send Page number
|
||
sendData(pageNumber + (i * 64));
|
||
// Send stop bit
|
||
sendStop();
|
||
|
||
// read data
|
||
readData();
|
||
sendStop();
|
||
|
||
interrupts();
|
||
|
||
// OR 8 bits into one byte for a total of 8 bytes
|
||
for (byte j = 0; j < 64; j += 8) {
|
||
sdBuffer[(pageNumber * 8) + (j / 8)] = tempBits[0 + j] << 7 | tempBits[1 + j] << 6 | tempBits[2 + j] << 5 | tempBits[3 + j] << 4 | tempBits[4 + j] << 3 | tempBits[5 + j] << 2 | tempBits[6 + j] << 1 | tempBits[7 + j];
|
||
}
|
||
// Wait ~0.6ms between pages or eeprom will lock up
|
||
pulseClock_N64(300);
|
||
}
|
||
|
||
// Write 64 pages at once to the SD card
|
||
myFile.write(sdBuffer, 512);
|
||
}
|
||
// Close the file:
|
||
myFile.close();
|
||
print_Msg(F("Saved to SAVE/"));
|
||
print_Msg(romName);
|
||
print_Msg(F("/"));
|
||
print_Msg(foldern - 1);
|
||
print_Msg(F("/"));
|
||
println_Msg(fileName);
|
||
display_Update();
|
||
}
|
||
else {
|
||
print_Error(F("Savetype Error"), true);
|
||
}
|
||
}
|
||
|
||
// Check if a write succeeded, returns 0 if all is ok and number of errors if not
|
||
unsigned long verifyEeprom() {
|
||
if ((saveType == 5) || (saveType == 6)) {
|
||
writeErrors = 0;
|
||
|
||
// Wait 0.6ms
|
||
pulseClock_N64(300);
|
||
|
||
print_Msg(F("Verifying against "));
|
||
println_Msg(filePath);
|
||
display_Update();
|
||
|
||
// Open file on sd card
|
||
if (myFile.open(filePath, O_READ)) {
|
||
|
||
for (byte i = 0; i < (eepPages / 64); i++) {
|
||
for (byte pageNumber = 0; pageNumber < 64; pageNumber++) {
|
||
// Disable interrupts for more uniform clock pulses
|
||
noInterrupts();
|
||
|
||
// Send read command
|
||
sendData(0x04);
|
||
// Send Page number
|
||
sendData(pageNumber + (i * 64));
|
||
// Send stop bit
|
||
sendStop();
|
||
|
||
// read data
|
||
readData();
|
||
sendStop();
|
||
|
||
interrupts();
|
||
|
||
// OR 8 bits into one byte for a total of 8 bytes
|
||
for (byte j = 0; j < 64; j += 8) {
|
||
sdBuffer[(pageNumber * 8) + (j / 8)] = tempBits[0 + j] << 7 | tempBits[1 + j] << 6 | tempBits[2 + j] << 5 | tempBits[3 + j] << 4 | tempBits[4 + j] << 3 | tempBits[5 + j] << 2 | tempBits[6 + j] << 1 | tempBits[7 + j];
|
||
}
|
||
// Wait ~0.6ms between pages or eeprom will lock up
|
||
pulseClock_N64(300);
|
||
}
|
||
|
||
// Check sdBuffer content against file on sd card
|
||
for (int c = 0; c < 512; c++) {
|
||
if (myFile.read() != sdBuffer[c]) {
|
||
writeErrors++;
|
||
}
|
||
}
|
||
}
|
||
// Close the file:
|
||
myFile.close();
|
||
}
|
||
else {
|
||
// SD Error
|
||
writeErrors = 999999;
|
||
print_Error(F("SD Error"), true);
|
||
}
|
||
// Return 0 if verified ok, or number of errors
|
||
return writeErrors;
|
||
}
|
||
else {
|
||
print_Error(F("Savetype Error"), true);
|
||
}
|
||
}
|
||
|
||
/******************************************
|
||
SRAM functions
|
||
*****************************************/
|
||
// Write sram to cartridge
|
||
void writeSram(unsigned long sramSize) {
|
||
if (saveType == 1) {
|
||
// Create filepath
|
||
sprintf(filePath, "%s/%s", filePath, fileName);
|
||
println_Msg(F("Writing..."));
|
||
println_Msg(filePath);
|
||
display_Update();
|
||
|
||
// Open file on sd card
|
||
if (myFile.open(filePath, O_READ)) {
|
||
for (unsigned long currByte = sramBase; currByte < (sramBase + sramSize); currByte += 512) {
|
||
|
||
// Read save from SD into buffer
|
||
myFile.read(sdBuffer, 512);
|
||
|
||
// Set the address for the next 512 bytes
|
||
setAddress_N64(currByte);
|
||
|
||
for (int c = 0; c < 512; c += 2) {
|
||
// Join bytes to word
|
||
word myWord = ( ( sdBuffer[c] & 0xFF ) << 8 ) | ( sdBuffer[c + 1] & 0xFF );
|
||
|
||
// Write word
|
||
writeWord_N64(myWord);
|
||
}
|
||
}
|
||
// Close the file:
|
||
myFile.close();
|
||
println_Msg(F("Done"));
|
||
display_Update();
|
||
}
|
||
else {
|
||
print_Error(F("SD Error"), true);
|
||
}
|
||
|
||
}
|
||
else {
|
||
print_Error(F("Savetype Error"), true);
|
||
}
|
||
}
|
||
|
||
// Read sram and save to the SD card
|
||
void readSram(unsigned long sramSize, byte flashramType) {
|
||
int offset = 512;
|
||
int bufferSize = 512;
|
||
if (flashramType == 2) {
|
||
offset = 64;
|
||
bufferSize = 128;
|
||
}
|
||
|
||
// Get name, add extension and convert to char array for sd lib
|
||
strcpy(fileName, romName);
|
||
|
||
if (saveType == 4) {
|
||
strcat(fileName, ".fla");
|
||
}
|
||
else if (saveType == 1) {
|
||
strcat(fileName, ".sra");
|
||
}
|
||
else {
|
||
print_Error(F("Savetype Error"), true);
|
||
}
|
||
|
||
// create a new folder for the save file
|
||
EEPROM_readAnything(0, foldern);
|
||
sprintf(folder, "SAVE/%s/%d", romName, foldern);
|
||
sd.mkdir(folder, true);
|
||
sd.chdir(folder);
|
||
|
||
// write new folder number back to eeprom
|
||
foldern = foldern + 1;
|
||
EEPROM_writeAnything(0, foldern);
|
||
|
||
// Open file on sd card
|
||
if (!myFile.open(fileName, O_RDWR | O_CREAT)) {
|
||
print_Error(F("SD Error"), true);
|
||
}
|
||
|
||
for (unsigned long currByte = sramBase; currByte < (sramBase + (sramSize / flashramType)); currByte += offset) {
|
||
// Set the address
|
||
setAddress_N64(currByte);
|
||
|
||
for (int c = 0; c < bufferSize; c += 2) {
|
||
// split word
|
||
word myWord = readWord_N64();
|
||
byte loByte = myWord & 0xFF;
|
||
byte hiByte = myWord >> 8;
|
||
|
||
// write to buffer
|
||
sdBuffer[c] = hiByte;
|
||
sdBuffer[c + 1] = loByte;
|
||
}
|
||
myFile.write(sdBuffer, bufferSize);
|
||
}
|
||
// Close the file:
|
||
myFile.close();
|
||
print_Msg(F("Saved to SAVE/"));
|
||
print_Msg(romName);
|
||
print_Msg(F("/"));
|
||
print_Msg(foldern - 1);
|
||
print_Msg(F("/"));
|
||
println_Msg(fileName);
|
||
display_Update();
|
||
}
|
||
|
||
unsigned long verifySram(unsigned long sramSize, byte flashramType) {
|
||
writeErrors = 0;
|
||
|
||
int offset = 512;
|
||
int bufferSize = 512;
|
||
if (flashramType == 2) {
|
||
offset = 64;
|
||
bufferSize = 128;
|
||
}
|
||
|
||
// Open file on sd card
|
||
if (myFile.open(filePath, O_READ)) {
|
||
for (unsigned long currByte = sramBase; currByte < (sramBase + (sramSize / flashramType)); currByte += offset) {
|
||
// Set the address
|
||
setAddress_N64(currByte);
|
||
|
||
for (int c = 0; c < bufferSize; c += 2) {
|
||
// split word
|
||
word myWord = readWord_N64();
|
||
byte loByte = myWord & 0xFF;
|
||
byte hiByte = myWord >> 8;
|
||
|
||
// write to buffer
|
||
sdBuffer[c] = hiByte;
|
||
sdBuffer[c + 1] = loByte;
|
||
}
|
||
// Check sdBuffer content against file on sd card
|
||
for (int i = 0; i < bufferSize; i++) {
|
||
if (myFile.read() != sdBuffer[i]) {
|
||
writeErrors++;
|
||
}
|
||
}
|
||
}
|
||
// Close the file:
|
||
myFile.close();
|
||
}
|
||
else {
|
||
print_Error(F("SD Error"), true);
|
||
}
|
||
// Return 0 if verified ok, or number of errors
|
||
return writeErrors;
|
||
}
|
||
|
||
/******************************************
|
||
Flashram functions
|
||
*****************************************/
|
||
// Send a command to the flashram command register
|
||
void sendFramCmd (unsigned long myCommand) {
|
||
// Split command into two words
|
||
word myComLowOut = myCommand & 0xFFFF;
|
||
word myComHighOut = myCommand >> 16;
|
||
|
||
// Set address to command register
|
||
setAddress_N64(0x08010000);
|
||
// Send command
|
||
writeWord_N64(myComHighOut);
|
||
writeWord_N64(myComLowOut);
|
||
}
|
||
|
||
// Init fram
|
||
void initFram() {
|
||
// FRAM_EXECUTE_CMD
|
||
sendFramCmd(0xD2000000);
|
||
delay(10);
|
||
// FRAM_EXECUTE_CMD
|
||
sendFramCmd(0xD2000000);
|
||
delay(10);
|
||
//FRAM_STATUS_MODE_CMD
|
||
sendFramCmd(0xE1000000);
|
||
delay(10);
|
||
}
|
||
|
||
void writeFram(byte flashramType) {
|
||
if (saveType == 4) {
|
||
// Erase fram
|
||
eraseFram();
|
||
|
||
// Check if empty
|
||
if (blankcheck_N64(flashramType) == 0) {
|
||
println_Msg(F("OK"));
|
||
display_Update();
|
||
}
|
||
else {
|
||
println_Msg("FAILED");
|
||
print_Error(F("Flash is not blank"), true);
|
||
}
|
||
|
||
// Create filepath
|
||
sprintf(filePath, "%s/%s", filePath, fileName);
|
||
print_Msg(F("Writing "));
|
||
println_Msg(filePath);
|
||
display_Update();
|
||
|
||
// Open file on sd card
|
||
if (myFile.open(filePath, O_READ)) {
|
||
// Init fram
|
||
initFram();
|
||
|
||
// Write all 8 fram banks
|
||
print_Msg(F("Bank "));
|
||
for (byte bank = 0; bank < 8; bank++) {
|
||
print_Msg(bank);
|
||
print_Msg(F(" "));
|
||
display_Update();
|
||
|
||
// Write one bank of 128*128 bytes
|
||
for (byte offset = 0; offset < 128; offset++) {
|
||
// Read save from SD into buffer
|
||
myFile.read(sdBuffer, 128);
|
||
|
||
// FRAM_WRITE_MODE_CMD
|
||
sendFramCmd(0xB4000000);
|
||
delay(1);
|
||
|
||
// Set the address for the next 128 bytes
|
||
setAddress_N64(0x08000000);
|
||
|
||
// Send 128 bytes, 64 words
|
||
for (byte c = 0; c < 128; c += 2) {
|
||
// Join two bytes into one word
|
||
word myWord = ( ( sdBuffer[c] & 0xFF ) << 8 ) | ( sdBuffer[c + 1] & 0xFF );
|
||
// Write word
|
||
writeWord_N64(myWord);
|
||
}
|
||
// Delay between each "DMA"
|
||
delay(1);
|
||
|
||
//FRAM_WRITE_OFFSET_CMD + offset
|
||
sendFramCmd((0xA5000000 | (((bank * 128) + offset) & 0xFFFF)));
|
||
delay(1);
|
||
|
||
// FRAM_EXECUTE_CMD
|
||
sendFramCmd(0xD2000000);
|
||
while (waitForFram(flashramType)) {
|
||
delay(1);
|
||
}
|
||
}
|
||
// Delay between banks
|
||
delay(20);
|
||
}
|
||
// Close the file:
|
||
myFile.close();
|
||
}
|
||
else {
|
||
print_Error(F("SD Error"), true);
|
||
}
|
||
}
|
||
else {
|
||
print_Error(F("Savetype Error"), true);
|
||
}
|
||
}
|
||
|
||
// Delete all 8 flashram banks
|
||
void eraseFram() {
|
||
if (saveType == 4) {
|
||
print_Msg(F("Erasing..."));
|
||
display_Update();
|
||
|
||
// Init fram
|
||
initFram();
|
||
|
||
// Erase fram
|
||
// 0x4B00007F 0x4B0000FF 0x4B00017F 0x4B0001FF 0x4B00027F 0x4B0002FF 0x4B00037F 0x4B0003FF
|
||
for (unsigned long bank = 0x4B00007F; bank < 0x4B00047F; bank += 0x80) {
|
||
sendFramCmd(bank);
|
||
delay(10);
|
||
// FRAM_ERASE_MODE_CMD
|
||
sendFramCmd(0x78000000);
|
||
delay(10);
|
||
// FRAM_EXECUTE_CMD
|
||
sendFramCmd(0xD2000000);
|
||
while (waitForFram(flashramType)) {
|
||
delay(1);
|
||
}
|
||
}
|
||
}
|
||
else {
|
||
print_Error(F("Savetype Error"), true);
|
||
}
|
||
}
|
||
|
||
// Read flashram
|
||
void readFram(byte flashramType) {
|
||
if (saveType == 4) {
|
||
// Put flashram into read mode
|
||
// FRAM_READ_MODE_CMD
|
||
sendFramCmd(0xF0000000);
|
||
// Read Flashram
|
||
readSram(131072, flashramType);
|
||
}
|
||
else {
|
||
print_Error(F("Savetype Error"), true);
|
||
}
|
||
}
|
||
|
||
// Verify flashram
|
||
unsigned long verifyFram(byte flashramType) {
|
||
// Put flashram into read mode
|
||
// FRAM_READ_MODE_CMD
|
||
sendFramCmd(0xF0000000);
|
||
writeErrors = verifySram(131072, flashramType);
|
||
return writeErrors;
|
||
}
|
||
|
||
// Blankcheck flashram
|
||
unsigned long blankcheck_N64(byte flashramType) {
|
||
writeErrors = 0;
|
||
|
||
int offset = 512;
|
||
int bufferSize = 512;
|
||
if (flashramType == 2) {
|
||
offset = 64;
|
||
bufferSize = 128;
|
||
}
|
||
|
||
// Put flashram into read mode
|
||
// FRAM_READ_MODE_CMD
|
||
sendFramCmd(0xF0000000);
|
||
|
||
// Read Flashram
|
||
for (unsigned long currByte = sramBase; currByte < (sramBase + (131072 / flashramType)); currByte += offset) {
|
||
// Set the address for the next 512 bytes
|
||
setAddress_N64(currByte);
|
||
|
||
for (int c = 0; c < bufferSize; c += 2) {
|
||
// split word
|
||
word myWord = readWord_N64();
|
||
byte loByte = myWord & 0xFF;
|
||
byte hiByte = myWord >> 8;
|
||
|
||
// write to buffer
|
||
sdBuffer[c] = hiByte;
|
||
sdBuffer[c + 1] = loByte;
|
||
}
|
||
// Check sdBuffer content against file on sd card
|
||
for (int i = 0; i < bufferSize; i++) {
|
||
if (0xFF != sdBuffer[i]) {
|
||
writeErrors++;
|
||
}
|
||
}
|
||
}
|
||
// Return 0 if verified ok, or number of errors
|
||
return writeErrors;
|
||
}
|
||
|
||
// Wait until current operation is done
|
||
byte waitForFram(byte flashramType) {
|
||
byte framStatus = 0;
|
||
byte statusMXL1100[] = {0x11, 0x11, 0x80, 0x01, 0x00, 0xC2, 0x00, 0x1E};
|
||
byte statusMXL1101[] = {0x11, 0x11, 0x80, 0x01, 0x00, 0xC2, 0x00, 0x1D};
|
||
byte statusMN63F81[] = {0x11, 0x11, 0x80, 0x01, 0x00, 0x32, 0x00, 0xF1};
|
||
|
||
// FRAM_STATUS_MODE_CMD
|
||
sendFramCmd(0xE1000000);
|
||
delay(1);
|
||
|
||
// Set address to Fram status register
|
||
setAddress_N64(0x08000000);
|
||
|
||
// Read Status
|
||
for (byte c = 0; c < 8; c += 2) {
|
||
// split word
|
||
word myWord = readWord_N64();
|
||
byte loByte = myWord & 0xFF;
|
||
byte hiByte = myWord >> 8;
|
||
|
||
// write to buffer
|
||
sdBuffer[c] = hiByte;
|
||
sdBuffer[c + 1] = loByte;
|
||
}
|
||
|
||
if (flashramType == 2) {
|
||
for (byte c = 0; c < 8; c++) {
|
||
if (statusMXL1100[c] != sdBuffer[c]) {
|
||
framStatus = 1;
|
||
}
|
||
}
|
||
}
|
||
else if (flashramType == 1) {
|
||
//MX29L1101
|
||
if (MN63F81MPN == false) {
|
||
for (byte c = 0; c < 8; c++) {
|
||
if (statusMXL1101[c] != sdBuffer[c]) {
|
||
framStatus = 1;
|
||
}
|
||
}
|
||
}
|
||
//MN63F81MPN
|
||
else if (MN63F81MPN == true) {
|
||
for (byte c = 0; c < 8; c++) {
|
||
if (statusMN63F81[c] != sdBuffer[c]) {
|
||
framStatus = 1;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
return framStatus;
|
||
}
|
||
|
||
// Get flashram type
|
||
void getFramType() {
|
||
|
||
// FRAM_STATUS_MODE_CMD
|
||
sendFramCmd(0xE1000000);
|
||
delay(10);
|
||
|
||
// Set address to Fram status register
|
||
setAddress_N64(0x08000000);
|
||
|
||
// Read Status
|
||
for (byte c = 0; c < 8; c += 2) {
|
||
// split word
|
||
word myWord = readWord_N64();
|
||
byte loByte = myWord & 0xFF;
|
||
byte hiByte = myWord >> 8;
|
||
|
||
// write to buffer
|
||
sdBuffer[c] = hiByte;
|
||
sdBuffer[c + 1] = loByte;
|
||
}
|
||
//MX29L1100
|
||
if (sdBuffer[7] == 0x1e ) {
|
||
flashramType = 2;
|
||
println_Msg(F("Type: MX29L1100"));
|
||
display_Update();
|
||
}
|
||
//MX29L1101
|
||
else if (sdBuffer[7] == 0x1d ) {
|
||
flashramType = 1;
|
||
MN63F81MPN = false;
|
||
println_Msg(F("Type: MX29L1101"));
|
||
display_Update();
|
||
}
|
||
//MN63F81MPN
|
||
else if (sdBuffer[7] == 0xf1 ) {
|
||
flashramType = 1;
|
||
MN63F81MPN = true;
|
||
println_Msg(F("Type: MN63F81MPN"));
|
||
display_Update();
|
||
}
|
||
// Type unknown
|
||
else {
|
||
for (byte c = 0; c < 8; c++) {
|
||
print_Msg(sdBuffer[c], HEX);
|
||
print_Msg(F(", "));
|
||
}
|
||
print_Error(F("Flashram unknown"), true);
|
||
}
|
||
}
|
||
|
||
/******************************************
|
||
Rom functions
|
||
*****************************************/
|
||
// Read rom and save to the SD card
|
||
void readRom_N64() {
|
||
// Get name, add extension and convert to char array for sd lib
|
||
strcpy(fileName, romName);
|
||
strcat(fileName, ".Z64");
|
||
|
||
// create a new folder
|
||
EEPROM_readAnything(0, foldern);
|
||
sprintf(folder, "ROM/%s/%d", romName, foldern);
|
||
sd.mkdir(folder, true);
|
||
sd.chdir(folder);
|
||
|
||
// write new folder number back to eeprom
|
||
foldern = foldern + 1;
|
||
EEPROM_writeAnything(0, foldern);
|
||
|
||
readn64rom:
|
||
// Open file on sd card
|
||
if (!myFile.open(fileName, O_RDWR | O_CREAT)) {
|
||
print_Error(F("SD Error"), true);
|
||
}
|
||
|
||
for (unsigned long currByte = romBase; currByte < (romBase + (cartSize * 1024 * 1024)); currByte += 512) {
|
||
// Blink led
|
||
if (currByte % 16384 == 0)
|
||
PORTB ^= (1 << 4);
|
||
|
||
// Set the address for the next 512 bytes
|
||
setAddress_N64(currByte);
|
||
|
||
for (int c = 0; c < 512; c += 2) {
|
||
// split word
|
||
word myWord = readWord_N64();
|
||
byte loByte = myWord & 0xFF;
|
||
byte hiByte = myWord >> 8;
|
||
|
||
// write to buffer
|
||
sdBuffer[c] = hiByte;
|
||
sdBuffer[c + 1] = loByte;
|
||
}
|
||
myFile.write(sdBuffer, 512);
|
||
}
|
||
// Close the file:
|
||
myFile.close();
|
||
print_Msg(F("Saved to ROM/"));
|
||
print_Msg(romName);
|
||
print_Msg(F("/"));
|
||
print_Msg(foldern - 1);
|
||
print_Msg(F("/"));
|
||
println_Msg(fileName);
|
||
display_Update();
|
||
|
||
calcn64crc:
|
||
// Calculate Checksum and convert to string
|
||
println_Msg(F("Calculating CRC.."));
|
||
display_Update();
|
||
char crcStr[9];
|
||
sprintf(crcStr, "%08lx", crc32());
|
||
// Print checksum
|
||
println_Msg(crcStr);
|
||
display_Update();
|
||
|
||
// Search n64.txt for crc
|
||
if (searchCRC(crcStr)) {
|
||
// Dump was a known good rom
|
||
println_Msg(F("Checksum matches"));
|
||
println_Msg(F(""));
|
||
println_Msg(F("Press Button..."));
|
||
display_Update();
|
||
wait();
|
||
}
|
||
else {
|
||
// Dump was bad or unknown
|
||
rgb.setColor(255, 0, 0);
|
||
// N64 CRC32 error Menu
|
||
unsigned char CRCMenu;
|
||
// Copy menuOptions out of progmem
|
||
convertPgm(menuOptionsN64CRC, 4);
|
||
|
||
char tempStr3[20];
|
||
strcpy(tempStr3, "CRC ERROR ");
|
||
strcat(tempStr3, crcStr);
|
||
|
||
CRCMenu = question_box(tempStr3, menuOptions, 4, 1);
|
||
|
||
// wait for user choice to come back from the question box menu
|
||
switch (CRCMenu)
|
||
{
|
||
case 0:
|
||
// Change to last directory
|
||
sd.chdir(folder);
|
||
display_Clear();
|
||
// Calculate CRC again
|
||
rgb.setColor(0, 0, 0);
|
||
goto calcn64crc;
|
||
break;
|
||
|
||
case 1:
|
||
// Change to last directory
|
||
sd.chdir(folder);
|
||
// Delete old file
|
||
if (!myFile.open(fileName, O_RDWR | O_CREAT)) {
|
||
print_Error(F("SD Error"), true);
|
||
}
|
||
if (!myFile.remove()) {
|
||
print_Error(F("Delete Error"), true);
|
||
}
|
||
// Dump again
|
||
display_Clear();
|
||
println_Msg(F("Reading Rom..."));
|
||
display_Update();
|
||
rgb.setColor(0, 0, 0);
|
||
goto readn64rom;
|
||
break;
|
||
|
||
case 2:
|
||
// Return to N64 menu
|
||
break;
|
||
|
||
case 3:
|
||
// Reset
|
||
asm volatile (" jmp 0");
|
||
break;
|
||
}
|
||
}
|
||
display_Update();
|
||
}
|
||
|
||
//******************************************
|
||
// End of File
|
||
//******************************************
|