mirror of https://github.com/sanni/cartreader.git
913 lines
21 KiB
C++
913 lines
21 KiB
C++
//******************************************
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// GB MEMORY MODULE
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//******************************************
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#ifdef ENABLE_GBX
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/******************************************
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Menu
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*****************************************/
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// GBM menu items
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static const char gbmMenuItem1[] PROGMEM = "Read ID";
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static const char gbmMenuItem2[] PROGMEM = "Read Flash";
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static const char gbmMenuItem3[] PROGMEM = "Erase Flash";
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static const char gbmMenuItem4[] PROGMEM = "Blankcheck";
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static const char gbmMenuItem5[] PROGMEM = "Write Flash";
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static const char gbmMenuItem6[] PROGMEM = "Read Mapping";
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static const char gbmMenuItem7[] PROGMEM = "Write Mapping";
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static const char* const menuOptionsGBM[] PROGMEM = { gbmMenuItem1, gbmMenuItem2, gbmMenuItem3, gbmMenuItem4, gbmMenuItem5, gbmMenuItem6, gbmMenuItem7 };
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void gbmMenu() {
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// create menu with title and 7 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(menuOptionsGBM, 7);
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mainMenu = question_box(F("GB Memory Menu"), menuOptions, 7, 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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// Read Flash ID
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case 0:
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// Clear screen
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display_Clear();
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readFlashID_GBM();
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break;
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// Read Flash
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case 1:
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// Clear screen
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display_Clear();
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// Print warning
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println_Msg(F("Attention"));
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println_Msg(F("Always power cycle"));
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println_Msg(F("cartreader directly"));
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println_Msg(F("before reading"));
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println_Msg("");
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// Prints string out of the common strings array either with or without newline
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print_STR(press_button_STR, 1);
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display_Update();
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wait();
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// Clear screen
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display_Clear();
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// Reset to root directory
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sd.chdir("/");
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// Enable access to ports 0120h
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send_GBM(0x09);
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// Map entire flashrom
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send_GBM(0x04);
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// Disable ports 0x0120...
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send_GBM(0x08);
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// Read 1MB rom
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readROM_GBM(64);
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break;
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// Erase Flash
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case 2:
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// Clear screen
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display_Clear();
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// Print warning
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println_Msg(F("Attention"));
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println_Msg(F("This will erase your"));
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println_Msg(F("NP Cartridge."));
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println_Msg("");
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println_Msg("");
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// Prints string out of the common strings array either with or without newline
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print_STR(press_button_STR, 1);
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display_Update();
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wait();
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// Clear screen
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display_Clear();
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eraseFlash_GBM();
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break;
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// Blankcheck Flash
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case 3:
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// Clear screen
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display_Clear();
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if (blankcheckFlash_GBM()) {
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println_Msg(FS(FSTRING_OK));
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display_Update();
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} else {
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println_Msg(F("ERROR"));
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display_Update();
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}
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break;
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// Write Flash
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case 4:
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// Clear screen
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display_Clear();
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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(F("Select 1MB file"));
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display_Clear();
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sprintf(filePath, "%s/%s", filePath, fileName);
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// Write rom
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writeFlash_GBM();
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break;
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// Read mapping
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case 5:
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// Clear screen
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display_Clear();
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// Reset to root directory
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sd.chdir("/");
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// Read mapping
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readMapping_GBM();
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break;
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// Write mapping
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case 6:
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// Clear screen
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display_Clear();
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// Print warning
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println_Msg(F("Attention"));
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println_Msg(F("This will erase your"));
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println_Msg(F("NP Cartridge's"));
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println_Msg(F("mapping data"));
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println_Msg("");
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// Prints string out of the common strings array either with or without newline
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print_STR(press_button_STR, 1);
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display_Update();
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wait();
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// Reset to root directory
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sd.chdir("/");
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// Clear screen
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display_Clear();
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// Clear filepath
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filePath[0] = '\0';
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// Reset to root directory
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sd.chdir("/");
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// Launch file browser
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fileBrowser(F("Select MAP file"));
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display_Clear();
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sprintf(filePath, "%s/%s", filePath, fileName);
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display_Update();
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// Clear screen
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display_Clear();
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// Erase mapping
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eraseMapping_GBM();
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if (blankcheckMapping_GBM()) {
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println_Msg(FS(FSTRING_OK));
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display_Update();
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} else {
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print_Error(F("Erasing failed"));
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break;
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}
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// Write mapping
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writeMapping_GBM();
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break;
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}
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println_Msg(FS(FSTRING_EMPTY));
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// Prints string out of the common strings array either with or without newline
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print_STR(press_button_STR, 1);
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display_Update();
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wait();
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}
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/******************************************
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Setup
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*****************************************/
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void setup_GBM() {
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// Request 5V
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setVoltage(VOLTS_SET_5V);
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// Set RST(PH0) to Input
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DDRH &= ~(1 << 0);
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// Activate Internal Pullup Resistors
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PORTH |= (1 << 0);
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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 RST(PH0) CS(PH3) WR(PH5) RD(PH6)
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DDRH |= (1 << 3) | (1 << 5) | (1 << 6);
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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 << 3) | (1 << 5) | (1 << 6);
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// Set Data Pins (D0-D7) to Input
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DDRC = 0x00;
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delay(400);
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// Check for Nintendo Power GB Memory cart
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byte timeout = 0;
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// First byte of NP register is always 0x21
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while (readByte_GBM(0x120) != 0x21) {
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// Enable ports 0x120h (F2)
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send_GBM(0x09);
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__asm__("nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t");
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timeout++;
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if (timeout > 10) {
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println_Msg(F("Error: Time Out"));
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print_FatalError(F("Please power cycle"));
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}
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}
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}
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/**********************
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LOW LEVEL
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**********************/
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// Read one word out of the cartridge
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byte readByte_GBM(word myAddress) {
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// Set data pins to Input
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DDRC = 0x0;
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PORTF = myAddress & 0xFF;
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PORTK = (myAddress >> 8) & 0xFF;
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__asm__("nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t");
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// Switch CS(PH3) and RD(PH6) to LOW
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PORTH &= ~(1 << 3);
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PORTH &= ~(1 << 6);
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__asm__("nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t");
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// Read
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byte tempByte = PINC;
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// Switch CS(PH3) and RD(PH6) to HIGH
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PORTH |= (1 << 6);
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PORTH |= (1 << 3);
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return tempByte;
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}
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// Write one word to data pins of the cartridge
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void writeByte_GBM(word myAddress, byte myData) {
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// Set data pins to Output
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DDRC = 0xFF;
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PORTF = myAddress & 0xFF;
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PORTK = (myAddress >> 8) & 0xFF;
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PORTC = myData;
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// Pull CS(PH3) and write(PH5) low
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PORTH &= ~(1 << 3);
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PORTH &= ~(1 << 5);
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__asm__("nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t");
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// Pull CS(PH3) and write(PH5) high
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PORTH |= (1 << 5);
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PORTH |= (1 << 3);
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__asm__("nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t");
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// Set data pins to Input (or read errors??!)
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DDRC = 0x0;
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}
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/**********************
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HELPER FUNCTIONS
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**********************/
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void printSdBuffer(word startByte, word numBytes) {
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for (word currByte = 0; currByte < numBytes; currByte += 10) {
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for (byte c = 0; c < 10; c++) {
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// Convert to char array so we don't lose leading zeros
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char currByteStr[2];
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sprintf(currByteStr, "%02X", sdBuffer[startByte + currByte + c]);
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print_Msg(currByteStr);
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}
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// Add a new line every 10 bytes
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println_Msg("");
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}
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display_Update();
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}
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void readROM_GBM(word numBanks) {
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println_Msg(F("Reading Rom..."));
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display_Update();
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// Get name, add extension and convert to char array for sd lib
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EEPROM_readAnything(0, foldern);
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sprintf(fileName, "GBM%d", foldern);
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strcat(fileName, ".bin");
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sd.mkdir("NP", true);
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sd.chdir("NP");
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// write new folder number back to eeprom
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foldern = foldern + 1;
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EEPROM_writeAnything(0, foldern);
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// Open file on sd card
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if (!myFile.open(fileName, O_RDWR | O_CREAT)) {
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print_FatalError(create_file_STR);
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} else {
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// Read rom
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word currAddress = 0;
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for (word currBank = 1; currBank < numBanks; currBank++) {
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// Set rom bank
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writeByte_GBM(0x2100, currBank);
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// Switch bank start address
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if (currBank > 1) {
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currAddress = 0x4000;
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}
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for (; currAddress < 0x7FFF; currAddress += 512) {
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for (int currByte = 0; currByte < 512; currByte++) {
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sdBuffer[currByte] = readByte_GBM(currAddress + currByte);
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}
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myFile.write(sdBuffer, 512);
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}
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}
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// Close the file:
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myFile.close();
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// Signal end of process
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print_Msg(F("Saved to NP/"));
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println_Msg(fileName);
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display_Update();
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}
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}
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/**********************
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GB Memory Functions
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**********************/
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void send_GBM(byte myCommand) {
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switch (myCommand) {
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case 0x01:
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//CMD_01h -> ???
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writeByte_GBM(0x0120, 0x01);
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writeByte_GBM(0x013F, 0xA5);
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break;
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case 0x02:
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//CMD_02h -> Write enable Step 2
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writeByte_GBM(0x0120, 0x02);
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writeByte_GBM(0x013F, 0xA5);
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break;
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case 0x03:
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//CMD_03h -> Undo write Step 2
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writeByte_GBM(0x0120, 0x03);
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writeByte_GBM(0x013F, 0xA5);
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break;
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case 0x04:
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//CMD_04h -> Map entire flashrom (MBC4 mode)
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writeByte_GBM(0x0120, 0x04);
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writeByte_GBM(0x013F, 0xA5);
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break;
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case 0x05:
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//CMD_05h -> Map menu (MBC5 mode)
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writeByte_GBM(0x0120, 0x05);
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writeByte_GBM(0x013F, 0xA5);
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break;
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case 0x08:
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//CMD_08h -> disable writes/reads to/from special Nintendo Power registers (those at 0120h..013Fh)
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writeByte_GBM(0x0120, 0x08);
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writeByte_GBM(0x013F, 0xA5);
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break;
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case 0x09:
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//CMD_09h Wakeup -> re-enable access to ports 0120h..013Fh
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writeByte_GBM(0x0120, 0x09);
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writeByte_GBM(0x0121, 0xAA);
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writeByte_GBM(0x0122, 0x55);
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writeByte_GBM(0x013F, 0xA5);
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break;
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case 0x0A:
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//CMD_0Ah -> Write enable Step 1
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writeByte_GBM(0x0120, 0x0A);
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writeByte_GBM(0x0125, 0x62);
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writeByte_GBM(0x0126, 0x04);
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writeByte_GBM(0x013F, 0xA5);
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break;
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case 0x10:
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//CMD_10h -> disable writes to normal MBC registers (such like 2100h)
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writeByte_GBM(0x0120, 0x10);
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writeByte_GBM(0x013F, 0xA5);
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break;
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case 0x11:
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//CMD_11h -> re-enable access to MBC registers like 0x2100
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writeByte_GBM(0x0120, 0x11);
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writeByte_GBM(0x013F, 0xA5);
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break;
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default:
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print_FatalError(F("Unknown Command"));
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break;
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}
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}
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void send_GBM(byte myCommand, word myAddress, byte myData) {
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byte myAddrLow = myAddress & 0xFF;
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byte myAddrHigh = (myAddress >> 8) & 0xFF;
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switch (myCommand) {
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case 0x0F:
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// CMD_0Fh -> Write address/byte to flash
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writeByte_GBM(0x0120, 0x0F);
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writeByte_GBM(0x0125, myAddrHigh);
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writeByte_GBM(0x0126, myAddrLow);
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writeByte_GBM(0x0127, myData);
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writeByte_GBM(0x013F, 0xA5);
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break;
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default:
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print_FatalError(F("Unknown Command"));
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break;
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}
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}
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void switchGame_GBM(byte myData) {
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// Enable ports 0x0120 (F2)
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send_GBM(0x09);
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//CMD_C0h -> map selected game without reset
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writeByte_GBM(0x0120, 0xC0 & myData);
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writeByte_GBM(0x013F, 0xA5);
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}
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void resetFlash_GBM() {
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// Enable ports 0x0120 (F2)
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send_GBM(0x09);
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// Send reset command
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writeByte_GBM(0x2100, 0x01);
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send_GBM(0x0F, 0x5555, 0xAA);
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send_GBM(0x0F, 0x2AAA, 0x55);
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send_GBM(0x0F, 0x5555, 0xF0);
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delay(100);
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}
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boolean readFlashID_GBM() {
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// Enable ports 0x0120 (F2)
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send_GBM(0x09);
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writeByte_GBM(0x2100, 0x01);
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// Read ID command
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send_GBM(0x0F, 0x5555, 0xAA);
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send_GBM(0x0F, 0x2AAA, 0x55);
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send_GBM(0x0F, 0x5555, 0x90);
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// Read the two id bytes into a string
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flashid = readByte_GBM(0) << 8;
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flashid |= readByte_GBM(1);
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sprintf(flashid_str, "%04X", flashid);
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if (flashid == 0xC289) {
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print_Msg(F("Flash ID: "));
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println_Msg(flashid_str);
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display_Update();
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resetFlash_GBM();
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return 1;
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} else {
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print_Msg(F("Flash ID: "));
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println_Msg(flashid_str);
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print_FatalError(F("Unknown Flash ID"));
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resetFlash_GBM();
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return 0;
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}
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}
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void eraseFlash_GBM() {
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println_Msg(F("Erasing..."));
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display_Update();
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//enable access to ports 0120h
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send_GBM(0x09);
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// Enable write
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send_GBM(0x0A);
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send_GBM(0x2);
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// Unprotect sector 0
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send_GBM(0x0F, 0x5555, 0xAA);
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send_GBM(0x0F, 0x2AAA, 0x55);
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send_GBM(0x0F, 0x5555, 0x60);
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send_GBM(0x0F, 0x5555, 0xAA);
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send_GBM(0x0F, 0x2AAA, 0x55);
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send_GBM(0x0F, 0x5555, 0x40);
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// Wait for unprotect to complete
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while ((readByte_GBM(0) & 0x80) != 0x80) {}
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// Send erase command
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send_GBM(0x0F, 0x5555, 0xaa);
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send_GBM(0x0F, 0x2AAA, 0x55);
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send_GBM(0x0F, 0x5555, 0x80);
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send_GBM(0x0F, 0x5555, 0xaa);
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send_GBM(0x0F, 0x2AAA, 0x55);
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send_GBM(0x0F, 0x5555, 0x10);
|
|
|
|
// Wait for erase to complete
|
|
while ((readByte_GBM(0) & 0x80) != 0x80) {}
|
|
|
|
// Reset flashrom
|
|
resetFlash_GBM();
|
|
}
|
|
|
|
boolean blankcheckFlash_GBM() {
|
|
print_Msg(F("Blankcheck..."));
|
|
display_Update();
|
|
|
|
//enable access to ports 0120h (F2)
|
|
send_GBM(0x09);
|
|
|
|
// Map entire flashrom
|
|
send_GBM(0x04);
|
|
// Disable ports 0x0120...
|
|
send_GBM(0x08);
|
|
|
|
// Read rom
|
|
word currAddress = 0;
|
|
|
|
for (byte currBank = 1; currBank < 64; currBank++) {
|
|
// Set rom bank
|
|
writeByte_GBM(0x2100, currBank);
|
|
|
|
// Switch bank start address
|
|
if (currBank > 1) {
|
|
currAddress = 0x4000;
|
|
}
|
|
|
|
for (; currAddress < 0x7FFF; currAddress++) {
|
|
if (readByte_GBM(currAddress) != 0xFF) {
|
|
return 0;
|
|
}
|
|
}
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
void writeFlash_GBM() {
|
|
print_Msg(F("Writing..."));
|
|
display_Update();
|
|
|
|
// Open file on sd card
|
|
if (myFile.open(filePath, O_READ)) {
|
|
// Get rom size from file
|
|
fileSize = myFile.fileSize();
|
|
if ((fileSize / 0x4000) > 64) {
|
|
print_FatalError(F("File is too big."));
|
|
}
|
|
|
|
// Enable access to ports 0120h
|
|
send_GBM(0x09);
|
|
// Enable write
|
|
send_GBM(0x0A);
|
|
send_GBM(0x2);
|
|
|
|
// Map entire flash rom
|
|
send_GBM(0x4);
|
|
|
|
// Set bank for unprotect command, writes to 0x5555 need odd bank number
|
|
writeByte_GBM(0x2100, 0x1);
|
|
|
|
// Disable ports 0x2100 and 0x120 or else those addresses will not be writable
|
|
send_GBM(0x10);
|
|
send_GBM(0x08);
|
|
|
|
// Unprotect sector 0
|
|
writeByte_GBM(0x5555, 0xAA);
|
|
writeByte_GBM(0x2AAA, 0x55);
|
|
writeByte_GBM(0x5555, 0x60);
|
|
writeByte_GBM(0x5555, 0xAA);
|
|
writeByte_GBM(0x2AAA, 0x55);
|
|
writeByte_GBM(0x5555, 0x40);
|
|
|
|
// Check if flashrom is ready for writing or busy
|
|
while ((readByte_GBM(0) & 0x80) != 0x80) {}
|
|
|
|
// first bank: 0x0000-0x7FFF,
|
|
word currAddress = 0x0;
|
|
|
|
// Write 63 banks
|
|
for (byte currBank = 0x1; currBank < (fileSize / 0x4000); currBank++) {
|
|
// Blink led
|
|
blinkLED();
|
|
|
|
// all following banks: 0x4000-0x7FFF
|
|
if (currBank > 1) {
|
|
currAddress = 0x4000;
|
|
}
|
|
|
|
// Write single bank in 128 byte steps
|
|
for (; currAddress < 0x7FFF; currAddress += 128) {
|
|
// Fill SD buffer
|
|
myFile.read(sdBuffer, 128);
|
|
|
|
// Enable access to ports 0x120 and 0x2100
|
|
send_GBM(0x09);
|
|
send_GBM(0x11);
|
|
|
|
// Set bank
|
|
writeByte_GBM(0x2100, 0x1);
|
|
|
|
// Disable ports 0x2100 and 0x120 or else those addresses will not be writable
|
|
send_GBM(0x10);
|
|
send_GBM(0x08);
|
|
|
|
// Write flash buffer command
|
|
writeByte_GBM(0x5555, 0xAA);
|
|
writeByte_GBM(0x2AAA, 0x55);
|
|
writeByte_GBM(0x5555, 0xA0);
|
|
|
|
// Wait until flashrom is ready again
|
|
while ((readByte_GBM(0) & 0x80) != 0x80) {}
|
|
|
|
// Enable access to ports 0x120 and 0x2100
|
|
send_GBM(0x09);
|
|
send_GBM(0x11);
|
|
|
|
// Set bank
|
|
writeByte_GBM(0x2100, currBank);
|
|
|
|
// Disable ports 0x2100 and 0x120 or else those addresses will not be writable
|
|
send_GBM(0x10);
|
|
send_GBM(0x08);
|
|
|
|
// Fill flash buffer
|
|
for (word currByte = 0; currByte < 128; currByte++) {
|
|
writeByte_GBM(currAddress + currByte, sdBuffer[currByte]);
|
|
}
|
|
// Execute write
|
|
writeByte_GBM(currAddress + 127, 0xFF);
|
|
|
|
// Wait for write to complete
|
|
while ((readByte_GBM(currAddress) & 0x80) != 0x80) {}
|
|
}
|
|
}
|
|
// Close the file:
|
|
myFile.close();
|
|
print_STR(done_STR, 1);
|
|
} else {
|
|
print_Error(F("Can't open file"));
|
|
}
|
|
}
|
|
|
|
void readMapping_GBM() {
|
|
// Enable ports 0x0120
|
|
send_GBM(0x09);
|
|
|
|
// Set WE and WP
|
|
send_GBM(0x0A);
|
|
send_GBM(0x2);
|
|
|
|
// Enable hidden mapping area
|
|
writeByte_GBM(0x2100, 0x01);
|
|
send_GBM(0x0F, 0x5555, 0xAA);
|
|
send_GBM(0x0F, 0x2AAA, 0x55);
|
|
send_GBM(0x0F, 0x5555, 0x77);
|
|
send_GBM(0x0F, 0x5555, 0xAA);
|
|
send_GBM(0x0F, 0x2AAA, 0x55);
|
|
send_GBM(0x0F, 0x5555, 0x77);
|
|
|
|
// Read mapping
|
|
println_Msg(F("Reading Mapping..."));
|
|
display_Update();
|
|
|
|
// Get name, add extension and convert to char array for sd lib
|
|
EEPROM_readAnything(0, foldern);
|
|
sprintf(fileName, "GBM%d", foldern);
|
|
strcat(fileName, ".map");
|
|
sd.mkdir("NP", true);
|
|
sd.chdir("NP");
|
|
// 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_FatalError(create_file_STR);
|
|
} else {
|
|
for (byte currByte = 0; currByte < 128; currByte++) {
|
|
sdBuffer[currByte] = readByte_GBM(currByte);
|
|
}
|
|
myFile.write(sdBuffer, 128);
|
|
|
|
// Close the file:
|
|
myFile.close();
|
|
|
|
// Signal end of process
|
|
printSdBuffer(0, 20);
|
|
printSdBuffer(102, 20);
|
|
println_Msg("");
|
|
print_Msg(F("Saved to NP/"));
|
|
println_Msg(fileName);
|
|
display_Update();
|
|
}
|
|
|
|
// Reset flash to leave hidden mapping area
|
|
resetFlash_GBM();
|
|
}
|
|
|
|
void eraseMapping_GBM() {
|
|
println_Msg(F("Erasing..."));
|
|
display_Update();
|
|
|
|
//enable access to ports 0120h
|
|
send_GBM(0x09);
|
|
// Enable write
|
|
send_GBM(0x0A);
|
|
send_GBM(0x2);
|
|
|
|
// Unprotect sector 0
|
|
send_GBM(0x0F, 0x5555, 0xAA);
|
|
send_GBM(0x0F, 0x2AAA, 0x55);
|
|
send_GBM(0x0F, 0x5555, 0x60);
|
|
send_GBM(0x0F, 0x5555, 0xAA);
|
|
send_GBM(0x0F, 0x2AAA, 0x55);
|
|
send_GBM(0x0F, 0x5555, 0x40);
|
|
|
|
// Wait for unprotect to complete
|
|
while ((readByte_GBM(0) & 0x80) != 0x80) {}
|
|
|
|
// Send erase command
|
|
send_GBM(0x0F, 0x5555, 0xAA);
|
|
send_GBM(0x0F, 0x2AAA, 0x55);
|
|
send_GBM(0x0F, 0x5555, 0x60);
|
|
send_GBM(0x0F, 0x5555, 0xAA);
|
|
send_GBM(0x0F, 0x2AAA, 0x55);
|
|
send_GBM(0x0F, 0x5555, 0x04);
|
|
|
|
// Wait for erase to complete
|
|
while ((readByte_GBM(0) & 0x80) != 0x80) {}
|
|
|
|
// Reset flashrom
|
|
resetFlash_GBM();
|
|
}
|
|
|
|
boolean blankcheckMapping_GBM() {
|
|
print_Msg(F("Blankcheck..."));
|
|
display_Update();
|
|
|
|
// Enable ports 0x0120
|
|
send_GBM(0x09);
|
|
|
|
// Set WE and WP
|
|
send_GBM(0x0A);
|
|
send_GBM(0x2);
|
|
|
|
// Enable hidden mapping area
|
|
writeByte_GBM(0x2100, 0x01);
|
|
send_GBM(0x0F, 0x5555, 0xAA);
|
|
send_GBM(0x0F, 0x2AAA, 0x55);
|
|
send_GBM(0x0F, 0x5555, 0x77);
|
|
send_GBM(0x0F, 0x5555, 0xAA);
|
|
send_GBM(0x0F, 0x2AAA, 0x55);
|
|
send_GBM(0x0F, 0x5555, 0x77);
|
|
|
|
// Disable ports 0x0120...
|
|
send_GBM(0x08);
|
|
|
|
// Read rom
|
|
for (byte currByte = 0; currByte < 128; currByte++) {
|
|
if (readByte_GBM(currByte) != 0xFF) {
|
|
return 0;
|
|
}
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
void writeMapping_GBM() {
|
|
print_Msg(F("Writing..."));
|
|
display_Update();
|
|
|
|
// Open file on sd card
|
|
if (myFile.open(filePath, O_READ)) {
|
|
// Get map file size and check if it exceeds 128KByte
|
|
if (myFile.fileSize() > 0x80) {
|
|
print_FatalError(F("File is too big."));
|
|
}
|
|
|
|
// Enable access to ports 0120h
|
|
send_GBM(0x09);
|
|
|
|
// Enable write
|
|
send_GBM(0x0A);
|
|
send_GBM(0x2);
|
|
|
|
// Map entire flash rom
|
|
send_GBM(0x4);
|
|
|
|
// Set bank, writes to 0x5555 need odd bank number
|
|
writeByte_GBM(0x2100, 0x1);
|
|
|
|
// Disable ports 0x2100 and 0x120 or else those addresses will not be writable
|
|
send_GBM(0x10);
|
|
send_GBM(0x08);
|
|
|
|
// Unlock write to map area
|
|
writeByte_GBM(0x5555, 0xAA);
|
|
writeByte_GBM(0x2AAA, 0x55);
|
|
writeByte_GBM(0x5555, 0x60);
|
|
writeByte_GBM(0x5555, 0xAA);
|
|
writeByte_GBM(0x2AAA, 0x55);
|
|
writeByte_GBM(0x5555, 0xE0);
|
|
|
|
// Check if flashrom is ready for writing or busy
|
|
while ((readByte_GBM(0) & 0x80) != 0x80) {}
|
|
|
|
// Fill SD buffer
|
|
myFile.read(sdBuffer, 128);
|
|
|
|
// Enable access to ports 0x120 and 0x2100
|
|
send_GBM(0x09);
|
|
send_GBM(0x11);
|
|
|
|
// Set bank
|
|
writeByte_GBM(0x2100, 0x1);
|
|
|
|
// Disable ports 0x2100 and 0x120 or else those addresses will not be writable
|
|
send_GBM(0x10);
|
|
send_GBM(0x08);
|
|
|
|
// Write flash buffer command
|
|
writeByte_GBM(0x5555, 0xAA);
|
|
writeByte_GBM(0x2AAA, 0x55);
|
|
writeByte_GBM(0x5555, 0xA0);
|
|
|
|
// Wait until flashrom is ready again
|
|
while ((readByte_GBM(0) & 0x80) != 0x80) {}
|
|
|
|
// Enable access to ports 0x120 and 0x2100
|
|
send_GBM(0x09);
|
|
send_GBM(0x11);
|
|
|
|
// Set bank
|
|
writeByte_GBM(0x2100, 0);
|
|
|
|
// Disable ports 0x2100 and 0x120 or else those addresses will not be writable
|
|
send_GBM(0x10);
|
|
send_GBM(0x08);
|
|
|
|
// Fill flash buffer
|
|
for (word currByte = 0; currByte < 128; currByte++) {
|
|
// Blink led
|
|
blinkLED();
|
|
|
|
writeByte_GBM(currByte, sdBuffer[currByte]);
|
|
}
|
|
// Execute write
|
|
writeByte_GBM(127, 0xFF);
|
|
|
|
// Close the file:
|
|
myFile.close();
|
|
print_STR(done_STR, 1);
|
|
} else {
|
|
print_Error(F("Can't open file"));
|
|
}
|
|
}
|
|
|
|
#endif
|
|
|
|
//******************************************
|
|
// End of File
|
|
//******************************************
|