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V19E: Started adding support for MX29L010 1MB flashrom saves (not working yet)
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sanni
GitHub
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@ -2,8 +2,8 @@
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Cartridge Reader for Arduino Mega2560
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Author: sanni
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Date: 2016-09-27
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Version: V19D
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Date: 2016-10-05
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Version: V19E
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SD lib: https://github.com/greiman/SdFat
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LCD lib: https://github.com/adafruit/Adafruit_SSD1306
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@ -31,9 +31,10 @@
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Pickle - SDD1 fix
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insidegadgets - GBCartRead
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RobinTheHood - GameboyAdvanceRomDumper
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YamaArashi - GBA flashrom bank switch command
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**********************************************************************************/
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char ver[5] = "V19D";
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char ver[5] = "V19E";
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/******************************************
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Define Output
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@ -145,15 +145,20 @@ void gbaMenu() {
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display_Clear();
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sd.chdir("/");
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// 512K FLASH
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readFLASH_GBA(65536);
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readFLASH_GBA(1, 65536, 0);
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setROM_GBA();
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break;
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case 5:
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display_Clear();
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sd.chdir("/");
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// 1M FLASH
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readFLASH_GBA(131072);
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// 1M FLASH (divided into two banks)
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switchBank_GBA(0x0);
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setROM_GBA();
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readFLASH_GBA(1, 65536, 0);
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switchBank_GBA(0x1);
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setROM_GBA();
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readFLASH_GBA(0, 65536, 65536);
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setROM_GBA();
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break;
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}
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@ -240,8 +245,8 @@ void gbaMenu() {
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}
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eraseFLASH_GBA();
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if (blankcheckFLASH_GBA(65536)) {
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writeFLASH_GBA(1, 65536);
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verifyFLASH_GBA(65536);
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writeFLASH_GBA(1, 65536, 0);
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verifyFLASH_GBA(65536, 0);
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}
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else {
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print_Error(F("Erase failed"), false);
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@ -255,16 +260,28 @@ void gbaMenu() {
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// 1M FLASH
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idFlash_GBA();
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resetFLASH_GBA();
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if (strcmp(flashid, "BFD4") != 0) {
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if (strcmp(flashid, "C209") != 0) {
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println_Msg(F("Flashrom Type not supported"));
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print_Msg(F("ID: "));
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println_Msg(flashid);
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print_Error(F(":("), true);
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}
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eraseFLASH_GBA();
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if (blankcheckFLASH_GBA(131072)) {
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writeFLASH_GBA(1, 131072);
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verifyFLASH_GBA(131072);
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// 131072 bytes are divided into two 65536 byte banks
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switchBank_GBA(0x0);
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setROM_GBA();
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if (blankcheckFLASH_GBA(65536)) {
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writeFLASH_GBA(1, 65536, 0);
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verifyFLASH_GBA(65536, 0);
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}
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else {
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print_Error(F("Erase failed"), false);
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}
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switchBank_GBA(0x1);
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setROM_GBA();
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if (blankcheckFLASH_GBA(65536)) {
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writeFLASH_GBA(0, 65536, 65536);
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verifyFLASH_GBA(65536, 65536);
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}
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else {
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print_Error(F("Erase failed"), false);
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@ -315,7 +332,7 @@ void setup_GBA() {
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/******************************************
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Low level functions
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*****************************************/
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// Setup all ports and pins for readign the rom
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// Setup all ports and pins for reading the rom
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void setROM_GBA() {
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// Set address/data pins to OUTPUT
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// AD0-AD7
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@ -339,6 +356,9 @@ void setROM_GBA() {
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// Output a high signal on CS_SRAM(PH0) CS_ROM(PH3) WR(PH5) RD(PH6)
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// At power-on all the control lines are high/disabled
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PORTH |= (1 << 0) | (1 << 3) | (1 << 5) | (1 << 6);
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// Wait until all is stable
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delay(500);
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}
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void setAddress_GBA(unsigned long myAddress) {
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@ -384,7 +404,29 @@ void readRand_GBA(unsigned long myAddress, byte myArray[] , int numBytes) {
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myArray[currByte] = (currWord >> 8) & 0xFF;
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myArray[currByte + 1] = currWord & 0xFF;
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}
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setROM_GBA();
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// setROM_GBA without delay
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// Set address/data pins to OUTPUT
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// AD0-AD7
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DDRF = 0xFF;
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// AD8-AD15
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DDRK = 0xFF;
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// AD16-AD23
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DDRC = 0xFF;
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// Output a HIGH signal
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// AD0-AD7
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PORTF = 0xFF;
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// AD8-AD15
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PORTK = 0xFF;
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// AD16-AD23
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PORTC = 0xFF;
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// Set Control Pins to Output CS_SRAM(PH0) CS_ROM(PH3) WR(PH5) RD(PH6)
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// CLK is N/C and IRQ is conected to GND inside the cartridge
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DDRH |= (1 << 0) | (1 << 3) | (1 << 5) | (1 << 6);
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// Output a high signal on CS_SRAM(PH0) CS_ROM(PH3) WR(PH5) RD(PH6)
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// At power-on all the control lines are high/disabled
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PORTH |= (1 << 0) | (1 << 3) | (1 << 5) | (1 << 6);
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}
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// Read multiple bytes into an array but only toggle CS once
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@ -412,6 +454,8 @@ int testHeader() {
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setAddress_GBA(0);
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// Read header into array sequentially
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readSeq_GBA(cartBuffer, 192);
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// Reset ports or the 1st maskrom byte on eeprom carts won't be read correctly
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setROM_GBA();
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// Check if Nintendo logo is read ok
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int logoErrors = checkLogo();
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@ -869,11 +913,17 @@ void resetFLASH_GBA() {
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// Output a LOW signal on CE_FLASH(PH0)
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PORTH &= ~(1 << 0);
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// Erase command sequence
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// Reset command sequence
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writeByteFlash_GBA(0x5555, 0xAA);
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writeByteFlash_GBA(0x2AAA, 0x55);
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writeByteFlash_GBA(0x5555, 0xf0);
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writeByteFlash_GBA(0x5555, 0xf0);
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// Set CS_FLASH(PH0) high
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PORTH |= (1 << 0);
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// Wait
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delay(100);
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}
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byte readByteFlash_GBA(unsigned long myAddress) {
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@ -937,11 +987,11 @@ void eraseFLASH_GBA() {
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writeByteFlash_GBA(0x2aaa, 0x55);
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writeByteFlash_GBA(0x5555, 0x10);
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// Wait 100ms until chip is erased
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delay(100);
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// Set CS_FLASH(PH0) high
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PORTH |= (1 << 0);
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// Wait until all is erased
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delay(500);
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}
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boolean blankcheckFLASH_GBA (unsigned long flashSize) {
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@ -989,7 +1039,33 @@ boolean blankcheckFLASH_GBA (unsigned long flashSize) {
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return blank;
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}
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void readFLASH_GBA (unsigned long flashSize) {
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// The MX29L010 is 131072 bytes in size and has 16 sectors per bank
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// each sector is 4096 bytes, there are 32 sectors total
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// therefore the bank size is 65536 bytes, so we have two banks in total
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void switchBank_GBA(byte bankNum) {
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// Output a HIGH signal on CS_ROM(PH3) WE_FLASH(PH5) and OE_FLASH(PH6)
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PORTH |= (1 << 3) | (1 << 5) | (1 << 6);
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// Set address ports to output
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DDRF = 0xFF;
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DDRK = 0xFF;
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// Set data pins to output
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DDRC = 0xFF;
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// Output a LOW signal on CE_FLASH(PH0)
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PORTH &= ~(1 << 0);
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// Switch bank command sequence
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writeByteFlash_GBA(0x5555, 0xAA);
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writeByteFlash_GBA(0x2AAA, 0x55);
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writeByteFlash_GBA(0x5555, 0xB0);
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writeByteFlash_GBA(0x0000, bankNum);
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// Set CS_FLASH(PH0) high
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PORTH |= (1 << 0);
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}
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void readFLASH_GBA (boolean browseFile, unsigned long flashSize, uint32_t pos) {
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// Output a HIGH signal on CS_ROM(PH3) WE_FLASH(PH5)
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PORTH |= (1 << 3) | (1 << 5);
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@ -1005,35 +1081,42 @@ void readFLASH_GBA (unsigned long flashSize) {
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// Disable Pullups
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//PORTC = 0x00;
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// Get name, add extension and convert to char array for sd lib
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strcpy(fileName, romName);
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strcat(fileName, ".fla");
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if (browseFile) {
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// Get name, add extension and convert to char array for sd lib
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strcpy(fileName, romName);
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strcat(fileName, ".fla");
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// create a new folder for the save file
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EEPROM_readAnything(0, foldern);
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sprintf(folder, "SAVE/%s/%d", romName, foldern);
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sd.mkdir(folder, true);
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sd.chdir(folder);
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// create a new folder for the save file
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EEPROM_readAnything(0, foldern);
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// Signal end of process
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print_Msg(F("Reading to SAVE/"));
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print_Msg(romName);
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print_Msg(F("/"));
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print_Msg(foldern);
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print_Msg(F("/"));
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print_Msg(fileName);
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print_Msg(F("..."));
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display_Update();
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sprintf(folder, "SAVE/%s/%d", romName, foldern);
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sd.mkdir(folder, true);
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sd.chdir(folder);
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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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// Signal end of process
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print_Msg(F("Reading to SAVE/"));
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print_Msg(romName);
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print_Msg(F("/"));
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print_Msg(foldern);
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print_Msg(F("/"));
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print_Msg(fileName);
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print_Msg(F("..."));
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display_Update();
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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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}
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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_Error(F("SD Error"), true);
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}
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// Seek to a new position in the file
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if (pos != 0)
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myFile.seekCur(pos);
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// Output a LOW signal on CE_FLASH(PH0)
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PORTH &= ~(1 << 0);
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@ -1058,7 +1141,20 @@ void readFLASH_GBA (unsigned long flashSize) {
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display_Update();
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}
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void writeFLASH_GBA (boolean browseFile, unsigned long flashSize) {
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void busyCheck_GBA(int currByte) {
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// Set data pins to input
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DDRC = 0x00;
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// Output a LOW signal on OE_FLASH(PH6)
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PORTH &= ~(1 << 6);
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// Read PINC
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while (PINC != sdBuffer[currByte]) {}
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// Output a HIGH signal on OE_FLASH(PH6)
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PORTH |= (1 << 6);
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// Set data pins to output
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DDRC = 0xFF;
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}
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void writeFLASH_GBA (boolean browseFile, unsigned long flashSize, uint32_t pos) {
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// Output a HIGH signal on CS_ROM(PH3) WE_FLASH(PH5) and OE_FLASH(PH6)
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PORTH |= (1 << 3) | (1 << 5) | (1 << 6);
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@ -1076,9 +1172,6 @@ void writeFLASH_GBA (boolean browseFile, unsigned long flashSize) {
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sprintf(filePath, "%s/%s", filePath, fileName);
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display_Clear();
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}
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else {
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sprintf(filePath, "%s", fileName);
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}
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print_Msg(F("Writing flash..."));
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display_Update();
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@ -1086,6 +1179,10 @@ void writeFLASH_GBA (boolean browseFile, unsigned long flashSize) {
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//open file on sd card
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if (myFile.open(filePath, O_READ)) {
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// Seek to a new position in the file
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if (pos != 0)
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myFile.seekCur(pos);
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// Output a LOW signal on CE_FLASH(PH0)
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PORTH &= ~(1 << 0);
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@ -1100,8 +1197,9 @@ void writeFLASH_GBA (boolean browseFile, unsigned long flashSize) {
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writeByteFlash_GBA(0x5555, 0xa0);
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// Write current byte
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writeByteFlash_GBA(currAddress + c, sdBuffer[c]);
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// Wait 20us
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delayMicroseconds(20);
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// Wait
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busyCheck_GBA(c);
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}
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}
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// Set CS_FLASH(PH0) high
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@ -1120,7 +1218,7 @@ void writeFLASH_GBA (boolean browseFile, unsigned long flashSize) {
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}
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// Check if the SRAM was written without any error
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void verifyFLASH_GBA(unsigned long flashSize) {
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void verifyFLASH_GBA(unsigned long flashSize, uint32_t pos) {
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// Output a HIGH signal on CS_ROM(PH3) WE_FLASH(PH5)
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PORTH |= (1 << 3) | (1 << 5);
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@ -1145,6 +1243,10 @@ void verifyFLASH_GBA(unsigned long flashSize) {
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print_Error(F("SD Error"), true);
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}
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// Seek to a new position in the file
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if (pos != 0)
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myFile.seekCur(pos);
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for (unsigned long currAddress = 0; currAddress < flashSize; currAddress += 512) {
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myFile.read(sdBuffer, 512);
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@ -1164,7 +1266,7 @@ void verifyFLASH_GBA(unsigned long flashSize) {
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println_Msg(F("OK"));
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}
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else {
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println_Msg(wrError);
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print_Msg(wrError);
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print_Error(F(" Errors"), false);
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}
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}
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