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V31: Add flashing in 16bit mode for 29LV160/320/640 flashroms
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sanni
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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: 2018-03-19
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Version: V30K
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Date: 2018-04-02
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Version: V31
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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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@ -35,7 +35,7 @@
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infinest - help with GB Memory cart
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**********************************************************************************/
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char ver[5] = "V30K";
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char ver[5] = "V31";
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/******************************************
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Define Starting Point
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@ -16,8 +16,8 @@ unsigned long blank;
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Menu
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*****************************************/
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// Flash start menu
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static const char flashMenuItem1[] PROGMEM = "8bit slot";
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static const char flashMenuItem2[] PROGMEM = "16bit slot";
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static const char flashMenuItem1[] PROGMEM = "8bit adapter";
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static const char flashMenuItem2[] PROGMEM = "16bit adapter";
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static const char* const menuOptionsFlash[] PROGMEM = {flashMenuItem1, flashMenuItem2};
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// 8bit Flash menu items
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@ -242,6 +242,9 @@ void flashromMenu16() {
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if (strcmp(flashid, "C2F3") == 0) {
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writeFlash16_29F1601();
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}
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else if ((strcmp(flashid, "C2C4") == 0) || (strcmp(flashid, "C2A8") == 0) || (strcmp(flashid, "C2C9") == 0)) {
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writeFlash16_29LV640();
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}
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else {
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writeFlash16();
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}
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@ -405,8 +408,8 @@ void setup_Flash16() {
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//A16-A23
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DDRL = 0xFF;
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// Set Control Pins to Output OE(PH1) BYTE(PH3) WE(PH4) CE(PH6)
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DDRH |= (1 << 1) | (1 << 3) | (1 << 4) | (1 << 6);
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// Set Control Pins to Output RST(PH0) OE(PH1) BYTE(PH3) WE(PH4) CE(PH6)
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DDRH |= (1 << 0) | (1 << 1) | (1 << 3) | (1 << 4) | (1 << 6);
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// Set Data Pins (D0-D15) to Input
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DDRC = 0x00;
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@ -415,8 +418,8 @@ void setup_Flash16() {
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PORTC = 0x00;
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PORTA = 0x00;
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// Setting OE(PH1) BYTE(PH3) WE(PH4) HIGH
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PORTH |= (1 << 1) | (1 << 3) | (1 << 4);
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// Setting RST(PH0) OE(PH1) BYTE(PH3) WE(PH4) HIGH
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PORTH |= (1 << 0) | (1 << 1) | (1 << 3) | (1 << 4);
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// Setting CE(PH6) LOW
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PORTH &= ~(1 << 6);
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@ -447,6 +450,24 @@ void setup_Flash16() {
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flashSize = 4194304;
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flashromType = 2;
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}
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else if (strcmp(flashid, "C2C4") == 0) {
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println_Msg(F("MX29LV160 detected"));
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println_Msg(F("ATTENTION 3.3V"));
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flashSize = 2097152;
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flashromType = 2;
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}
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else if (strcmp(flashid, "C2A8") == 0) {
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println_Msg(F("MX29LV320"));
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println_Msg(F("ATTENTION 3.3V"));
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flashSize = 4194304;
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flashromType = 2;
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}
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else if (strcmp(flashid, "C2C9") == 0) {
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println_Msg(F("MX29LV640"));
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println_Msg(F("ATTENTION 3.3V"));
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flashSize = 8388608;
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flashromType = 2;
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}
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else {
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print_Error(F("Unknown flashrom"), true);
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println_Msg(" ");
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@ -908,11 +929,13 @@ void busyCheck29F1610() {
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void busyCheck29LV640(unsigned long myAddress, byte myData) {
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// Set data pins to input
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dataIn8();
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// Read the status register
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byte statusReg = readByte_Flash(myAddress);
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while ((statusReg & 0x80) != (myData & 0x80)) {
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statusReg = readByte_Flash(myAddress);
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}
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// Set data pins to output
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dataOut();
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}
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@ -923,6 +946,7 @@ void writeFlash29LV640() {
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println_Msg(F("Flashing file "));
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println_Msg(filePath);
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display_Update();
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// Open file on sd card
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if (myFile.open(filePath, O_READ)) {
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// Get rom size from file
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@ -932,6 +956,7 @@ void writeFlash29LV640() {
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// Set data pins to output
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dataOut();
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for (unsigned long currByte = 0; currByte < fileSize; currByte += 512) {
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// Fill sdBuffer
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myFile.read(sdBuffer, 512);
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@ -1438,6 +1463,77 @@ void busyCheck16() {
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dataOut16();
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}
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/******************************************
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MX29LV flashrom functions 16bit
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*****************************************/
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// Delay between write operations based on status register
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void busyCheck16_29LV640(unsigned long myAddress, word myData) {
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// Set data pins to input
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dataIn16();
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// Read the status register
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word statusReg = readWord_Flash(myAddress);
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while ((statusReg & 0x80) != (myData & 0x80)) {
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statusReg = readWord_Flash(myAddress);
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}
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// Set data pins to output
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dataOut16();
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}
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void writeFlash16_29LV640() {
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// Create filepath
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sprintf(filePath, "%s/%s", filePath, fileName);
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println_Msg(F("Flashing file "));
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println_Msg(filePath);
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display_Update();
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// Open file on sd card
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if (myFile.open(filePath, O_READ)) {
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// Get rom size from file
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fileSize = myFile.fileSize();
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if (fileSize > flashSize)
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print_Error(F("File size exceeds flash size."), true);
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// Set data pins to output
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dataOut16();
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int d = 0;
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for (unsigned long currWord = 0; currWord < fileSize / 2; currWord += 256) {
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// Fill sdBuffer
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myFile.read(sdBuffer, 512);
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// Blink led
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if (currWord % 4096 == 0)
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PORTB ^= (1 << 4);
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for (int c = 0; c < 256; c++) {
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// Write command sequence
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writeWord_Flash(0x5555, 0xaa);
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writeWord_Flash(0x2aaa, 0x55);
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writeWord_Flash(0x5555, 0xa0);
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// Write current word
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word myWord = ( ( sdBuffer[d + 1] & 0xFF ) << 8 ) | ( sdBuffer[d] & 0xFF );
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writeWord_Flash(currWord + c, myWord);
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d += 2;
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// Check if write is complete
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busyCheck16_29LV640(currWord + c, myWord);
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}
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d = 0;
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}
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// Set data pins to input again
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dataIn16();
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// Close the file:
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myFile.close();
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}
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else {
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println_Msg(F("Can't open file on SD."));
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display_Update();
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}
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}
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//******************************************
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// End of File
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//******************************************
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