mirror of
https://github.com/sanni/cartreader.git
synced 2025-01-12 21:19:06 +01:00
Update SMS.ino
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sanni
parent
8f2346f145
commit
4555ce1da7
@ -1191,11 +1191,11 @@ static const uint32_t crc_32_tab[] PROGMEM = { /* CRC polynomial 0xedb88320 */
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// improved strcmp function that ignores case to prevent checksum comparison issues
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int strcicmp(char const *a, char const *b)
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{
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for (;; a++, b++) {
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int d = tolower((unsigned char)*a) - tolower((unsigned char)*b);
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if (d != 0 || !*a)
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return d;
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}
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for (;; a++, b++) {
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int d = tolower((unsigned char) * a) - tolower((unsigned char) * b);
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if (d != 0 || !*a)
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return d;
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}
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}
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// look-up the calculated crc in the file n64.txt on sd card
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@ -15,7 +15,6 @@ static const char SMSMenuItem1[] PROGMEM = "Read Rom";
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static const char SMSMenuItem2[] PROGMEM = "Reset";
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static const char* const menuOptionsSMS[] PROGMEM = {SMSMenuItem1, SMSMenuItem2};
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void smsMenu() {
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// create menu with title and 2 options to choose from
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unsigned char mainMenu;
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@ -56,7 +55,7 @@ void setup_SMS() {
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DDRK = 0xFF;
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// Set Control Pins to Output RST(PH0) CS(PH3) WR(PH5) OE(PH6)
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DDRH |= (1 << 0) | (1 << 3) | (1 << 5) | (1 << 6);
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DDRH |= (1 << 0) | (1 << 3) | (1 << 5) | (1 << 6);
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// Setting RST(PH0) CS(PH3) WR(PH5) OE(PH6) HIGH
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PORTH |= (1 << 0) | (1 << 3) | (1 << 5) | (1 << 6);
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@ -71,7 +70,7 @@ void setup_SMS() {
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writeByte_SMS(0xFFFE, 1);
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writeByte_SMS(0xFFFF, 2);
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delay(200);
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delay(400);
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// Print all the info
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getCartInfo_SMS();
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@ -80,79 +79,67 @@ void setup_SMS() {
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/******************************************
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Low level functions
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*****************************************/
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void writeByte_SMS(unsigned long myAddress, byte myData) {
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void writeByte_SMS(word myAddress, byte myData) {
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// Set Data Pins (D0-D15) to Output
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DDRC = 0xFF;
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// Set address
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PORTF = myAddress & 0xFF;
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PORTK = (myAddress >> 8) & 0xFF;
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// Set Data Pins (D0-D15) to Output
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DDRC = 0xFF;
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// Output data
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PORTC = myData;
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// Arduino running at 16Mhz -> one nop = 62.5ns
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// Wait till output is stable
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__asm__("nop\n\t""nop\n\t");
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__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t");
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// Setting CS(PH3) LOW
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PORTH &= ~(1 << 3);
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// Switch WR(PH5) to LOW
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PORTH &= ~(1 << 5);
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// Switch CS(PH3) and WR(PH5) to LOW
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PORTH &= ~((1 << 3) | (1 << 5));
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// Leave WR low for at least 200ns
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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""nop\n\t""nop\n\t");
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// Leave WE low for at least 60ns
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__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t");
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// Switch WR(PH5) to HIGH
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PORTH |= (1 << 5);
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// Setting CS(PH3) HIGH
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PORTH |= (1 << 3);
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// Switch CS(PH3) and WR(PH5) to HIGH
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PORTH |= (1 << 3) | (1 << 5);
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// Leave WR high for at least 50ns
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__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t");
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// Leave WE high for at least 50ns
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__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t");
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// Set Data Pins (D0-D15) to Input
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DDRC = 0x00;
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}
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byte readByte_SMS(unsigned long myAddress) {
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byte tempByte;
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byte readByte_SMS(word myAddress) {
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// Set Data Pins (D0-D15) to Input
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DDRC = 0x00;
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// Set Address
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PORTF = myAddress & 0xFF;
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PORTK = (myAddress >> 8) & 0xFF;
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// Set Data Pins (D0-D15) to Input
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DDRC = 0x00;
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__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t");
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// Arduino running at 16Mhz -> one nop = 62.5ns
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__asm__("nop\n\t");
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// Switch CS(PH3) and OE(PH6) to LOW
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PORTH &= ~((1 << 3) | (1 << 6));
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// Setting CS(PH3) LOW
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PORTH &= ~(1 << 3);
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// Setting OE(PH6) LOW
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PORTH &= ~(1 << 6);
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// Long delay here or there will be read errors
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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""nop\n\t""nop\n\t");
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__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t");
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// Read
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tempByte = PINC;
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byte tempByte = PINC;
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// Setting OE(PH6) HIGH
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PORTH |= (1 << 6);
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// Setting CS(PH3) HIGH
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PORTH |= (1 << 3);
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// Switch CS(PH3) and OE(PH6) to HIGH
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PORTH |= (1 << 3) | (1 << 6);
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__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t");
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__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t");
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return tempByte;
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}
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unsigned char hex2bcd (unsigned char x) {
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unsigned char y;
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y = (x / 10) << 4;
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y = y | (x % 10);
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return (y);
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}
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//unsigned char hex2bcd (unsigned char x) {
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// unsigned char y;
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// y = (x / 10) << 4;
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// y = y | (x % 10);
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//return (y);
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//}
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byte readNibble(byte data, byte number) {
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return ((data >> (number * 4)) & 0xf);
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@ -192,6 +179,12 @@ void getCartInfo_SMS() {
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case 0x2:
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cartSize = 512 * 1024UL;
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break;
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default:
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cartSize = 48 * 1024UL;
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// LED Error
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rgb.setColor(0, 0, 255);
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break;
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}
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// Read TMR Sega string
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@ -206,12 +199,15 @@ void getCartInfo_SMS() {
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print_Msg(F("Name: "));
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println_Msg(romName);
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print_Msg(F("Size: "));
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print_Msg(cartSize * 8 / 1024 );
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println_Msg(F(" KBit"));
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print_Msg(cartSize / 1024);
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println_Msg(F("KB"));
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println_Msg(F(" "));
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if (strcmp(romName, "TMR SEGA") != 0)
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print_Error(F("Not working yet"), true);
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if (strcmp(romName, "TMR SEGA") != 0) {
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print_Error(F("Not working yet"), false);
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sprintf(romName, "ERROR");
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cartSize = 48 * 1024UL;
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}
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// Wait for user input
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#ifdef enable_OLED
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@ -247,21 +243,20 @@ void readROM_SMS() {
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if (!myFile.open(fileName, O_RDWR | O_CREAT)) {
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print_Error(F("SD Error"), true);
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}
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unsigned long bankSize = 16 * 1024UL;
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for (unsigned long currBank = 0x00; currBank < (cartSize / bankSize); currBank++) {
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word bankSize = 16 * 1024UL;
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for (byte currBank = 0x0; currBank < (cartSize / bankSize); currBank++) {
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// Write current 16KB bank to slot 2 register 0xFFFF
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writeByte_SMS(0xFFFF, currBank);
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// Blink led
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PORTB ^= (1 << 4);
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// Read 16KB from slot 2 which starts at 0x8000
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for (unsigned long currBuffer = 0; currBuffer < bankSize; currBuffer += 512) {
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for (word currBuffer = 0; currBuffer < bankSize; currBuffer += 512) {
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// Fill SD buffer
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for (int currByte = 0; currByte < 512; currByte++) {
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sdBuffer[currByte] = readByte_SMS(0x8000 + currBuffer + currByte);
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}
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myFile.write(sdBuffer, 512);
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//printSdBuffer();
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}
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}
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// Close the file:
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