mirror of
https://github.com/sanni/cartreader.git
synced 2024-11-13 08:25:05 +01:00
V27: Add basic Mega Drive Support
Just dumping of roms right now, no save games. Not sure if all games will dump or if there are some special ones.
This commit is contained in:
sanni
GitHub
parent
0c0e08bc2f
commit
80e0e12c82
@ -2,8 +2,8 @@
|
||||
Cartridge Reader for Arduino Mega2560
|
||||
|
||||
Author: sanni
|
||||
Date: 2017-06-25
|
||||
Version: V26
|
||||
Date: 2017-06-26
|
||||
Version: V27
|
||||
|
||||
SD lib: https://github.com/greiman/SdFat
|
||||
LCD lib: https://github.com/adafruit/Adafruit_SSD1306
|
||||
@ -34,7 +34,7 @@
|
||||
YamaArashi - GBA flashrom bank switch command
|
||||
|
||||
**********************************************************************************/
|
||||
char ver[5] = "V26";
|
||||
char ver[5] = "V27";
|
||||
|
||||
/******************************************
|
||||
Define Output
|
||||
@ -124,6 +124,7 @@ SdFile myFile;
|
||||
#define mode_FLASH16 8
|
||||
#define mode_GBA 9
|
||||
#define mode_GBM 10
|
||||
#define mode_MD 11
|
||||
|
||||
/******************************************
|
||||
Variables
|
||||
@ -179,10 +180,10 @@ char fileOptions[30][20];
|
||||
|
||||
// Common
|
||||
char romName[17];
|
||||
int sramSize = 0;
|
||||
unsigned long sramSize = 0;
|
||||
int romType = 0;
|
||||
byte saveType;
|
||||
int romSize = 0;
|
||||
word romSize = 0;
|
||||
byte numBanks = 128;
|
||||
char checksumStr[5];
|
||||
bool errorLvl = 0;
|
||||
@ -324,9 +325,10 @@ static const char modeItem1[] PROGMEM = "Nintendo 64";
|
||||
static const char modeItem2[] PROGMEM = "Super Nintendo";
|
||||
static const char modeItem3[] PROGMEM = "Nintendo Power";
|
||||
static const char modeItem4[] PROGMEM = "Game Boy";
|
||||
static const char modeItem5[] PROGMEM = "Flashrom Programmer";
|
||||
static const char modeItem6[] PROGMEM = "About";
|
||||
static const char* const modeOptions[] PROGMEM = {modeItem1, modeItem2, modeItem3, modeItem4, modeItem5, modeItem6};
|
||||
static const char modeItem5[] PROGMEM = "Mega Drive";
|
||||
static const char modeItem6[] PROGMEM = "Flashrom Programmer";
|
||||
static const char modeItem7[] PROGMEM = "About";
|
||||
static const char* const modeOptions[] PROGMEM = {modeItem1, modeItem2, modeItem3, modeItem4, modeItem5, modeItem6, modeItem7};
|
||||
|
||||
// N64 Submenu
|
||||
static const char n64MenuItem1[] PROGMEM = "Cart Slot";
|
||||
@ -353,8 +355,8 @@ void mainMenu() {
|
||||
// create menu with title and 6 options to choose from
|
||||
unsigned char modeMenu;
|
||||
// Copy menuOptions out of progmem
|
||||
convertPgm(modeOptions, 6);
|
||||
modeMenu = question_box("Cartridge Reader", menuOptions, 6, 0);
|
||||
convertPgm(modeOptions, 7);
|
||||
modeMenu = question_box("Cartridge Reader", menuOptions, 7, 0);
|
||||
|
||||
// wait for user choice to come back from the question box menu
|
||||
switch (modeMenu)
|
||||
@ -456,6 +458,13 @@ void mainMenu() {
|
||||
break;
|
||||
|
||||
case 4:
|
||||
display_Clear();
|
||||
display_Update();
|
||||
setup_MD();
|
||||
mode = mode_MD;
|
||||
break;
|
||||
|
||||
case 5:
|
||||
// create menu with title and 2 options to choose from
|
||||
unsigned char flashSlot;
|
||||
// Copy menuOptions out of progmem
|
||||
@ -481,7 +490,7 @@ void mainMenu() {
|
||||
}
|
||||
break;
|
||||
|
||||
case 5:
|
||||
case 6:
|
||||
display_Clear();
|
||||
// Draw the Logo
|
||||
display.drawBitmap(0, 0, sig, 128, 64, 1);
|
||||
@ -1308,6 +1317,9 @@ void loop() {
|
||||
else if (mode == mode_GBM) {
|
||||
gbmMenu();
|
||||
}
|
||||
else if (mode == mode_MD) {
|
||||
mdMenu();
|
||||
}
|
||||
else {
|
||||
display_Clear();
|
||||
println_Msg(F("Menu Error"));
|
||||
|
||||
282
Cart_Reader/MD.ino
Normal file
282
Cart_Reader/MD.ino
Normal file
@ -0,0 +1,282 @@
|
||||
//******************************************
|
||||
// SEGA MEGA DRIVE
|
||||
//******************************************
|
||||
|
||||
/******************************************
|
||||
Menu
|
||||
*****************************************/
|
||||
// MD menu items
|
||||
static const char MDMenuItem1[] PROGMEM = "Read Rom";
|
||||
static const char MDMenuItem2[] PROGMEM = "Read Save";
|
||||
static const char MDMenuItem3[] PROGMEM = "Write Save";
|
||||
static const char MDMenuItem4[] PROGMEM = "Write Flashcart";
|
||||
static const char MDMenuItem5[] PROGMEM = "Reset";
|
||||
static const char* const menuOptionsMD[] PROGMEM = {MDMenuItem1, MDMenuItem2, MDMenuItem3, MDMenuItem4, MDMenuItem5};
|
||||
|
||||
void mdMenu() {
|
||||
// create menu with title and 5 options to choose from
|
||||
unsigned char mainMenu;
|
||||
// Copy menuOptions out of progmem
|
||||
convertPgm(menuOptionsMD, 5);
|
||||
mainMenu = question_box("MEGA DRIVE Reader", menuOptions, 1, 0);
|
||||
|
||||
// wait for user choice to come back from the question box menu
|
||||
switch (mainMenu)
|
||||
{
|
||||
case 0:
|
||||
display_Clear();
|
||||
// Change working dir to root
|
||||
sd.chdir("/");
|
||||
readROM_MD();
|
||||
//compare_checksum_MD();
|
||||
break;
|
||||
|
||||
/*case 1:
|
||||
display_Clear();
|
||||
// Does cartridge have SRAM
|
||||
if () {
|
||||
// Change working dir to root
|
||||
sd.chdir("/");
|
||||
readSRAM_MD();
|
||||
}
|
||||
else {
|
||||
print_Error(F("Cart has no Sram"), false);
|
||||
}
|
||||
break;
|
||||
|
||||
case 2:
|
||||
display_Clear();
|
||||
// Does cartridge have SRAM
|
||||
if () {
|
||||
// Change working dir to root
|
||||
sd.chdir("/");
|
||||
writeSRAM_MD();
|
||||
unsigned long wrErrors;
|
||||
wrErrors = verifySRAM_MD();
|
||||
if (wrErrors == 0) {
|
||||
println_Msg(F("Verified OK"));
|
||||
display_Update();
|
||||
}
|
||||
else {
|
||||
print_Msg(F("Error: "));
|
||||
print_Msg(wrErrors);
|
||||
println_Msg(F(" bytes "));
|
||||
print_Error(F("did not verify."), false);
|
||||
}
|
||||
}
|
||||
else {
|
||||
print_Error(F("Cart has no Sram"), false);
|
||||
}
|
||||
break;
|
||||
|
||||
case 3:
|
||||
// Change working dir to root
|
||||
sd.chdir("/");
|
||||
writeFlash_MD();
|
||||
// Reset
|
||||
wait();
|
||||
asm volatile (" jmp 0");
|
||||
break;
|
||||
|
||||
case 4:
|
||||
asm volatile (" jmp 0");
|
||||
break;*/
|
||||
}
|
||||
println_Msg(F(""));
|
||||
println_Msg(F("Press Button..."));
|
||||
display_Update();
|
||||
wait();
|
||||
}
|
||||
|
||||
/******************************************
|
||||
Setup
|
||||
*****************************************/
|
||||
void setup_MD() {
|
||||
// Set Address Pins to Output
|
||||
//A0-A7
|
||||
DDRF = 0xFF;
|
||||
//A8-A15
|
||||
DDRK = 0xFF;
|
||||
//A16-A23
|
||||
DDRL = 0xFF;
|
||||
|
||||
// Set Control Pins to Output CS(PH3) WR(PH5) OE(PH6)
|
||||
DDRH |= (1 << 3) | (1 << 5) | (1 << 6);
|
||||
|
||||
// Set Data Pins (D0-D15) to Input
|
||||
DDRC = 0x00;
|
||||
DDRA = 0x00;
|
||||
|
||||
// Setting WR(PH5) OE(PH6) HIGH
|
||||
PORTH |= (1 << 5) | (1 << 6);
|
||||
// Setting CS(PH3) LOW
|
||||
PORTH &= ~(1 << 3);
|
||||
|
||||
delay(200);
|
||||
|
||||
// Print all the info
|
||||
getCartInfo_MD();
|
||||
}
|
||||
|
||||
/******************************************
|
||||
I/O Functions
|
||||
*****************************************/
|
||||
|
||||
/******************************************
|
||||
Low level functions
|
||||
*****************************************/
|
||||
void writeWord_MD(unsigned long myAddress, word myData) {
|
||||
PORTF = myAddress & 0xFF;
|
||||
PORTK = (myAddress >> 8) & 0xFF;
|
||||
PORTL = (myAddress >> 16) & 0xFF;
|
||||
PORTC = myData;
|
||||
PORTA = (myData >> 8) & 0xFF;
|
||||
|
||||
// Arduino running at 16Mhz -> one nop = 62.5ns
|
||||
// Wait till output is stable
|
||||
__asm__("nop\n\t");
|
||||
|
||||
// Switch WR(PH5) to LOW
|
||||
PORTH &= ~(1 << 5);
|
||||
|
||||
// Leave WR low for at least 60ns
|
||||
__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t");
|
||||
|
||||
// Switch WR(PH5) to HIGH
|
||||
PORTH |= (1 << 5);
|
||||
|
||||
// Leave WR high for at least 50ns
|
||||
__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t");
|
||||
}
|
||||
|
||||
word readWord_MD(unsigned long myAddress) {
|
||||
PORTF = myAddress & 0xFF;
|
||||
PORTK = (myAddress >> 8) & 0xFF;
|
||||
PORTL = (myAddress >> 16) & 0xFF;
|
||||
|
||||
// Arduino running at 16Mhz -> one nop = 62.5ns
|
||||
__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t");
|
||||
|
||||
// Setting OE(PH6) LOW
|
||||
PORTH &= ~(1 << 6);
|
||||
|
||||
__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t");
|
||||
|
||||
// Read
|
||||
word tempWord = ( ( PINA & 0xFF ) << 8 ) | ( PINC & 0xFF );
|
||||
|
||||
// Setting OE(PH6) HIGH
|
||||
PORTH |= (1 << 6);
|
||||
__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t");
|
||||
|
||||
return tempWord;
|
||||
}
|
||||
|
||||
// Switch data pins to write
|
||||
void dataOut_MD() {
|
||||
DDRC = 0xFF;
|
||||
DDRA = 0xFF;
|
||||
}
|
||||
|
||||
// Switch data pins to read
|
||||
void dataIn_MD() {
|
||||
DDRC = 0x00;
|
||||
DDRA = 0x00;
|
||||
}
|
||||
|
||||
/******************************************
|
||||
MEGA DRIVE functions
|
||||
*****************************************/
|
||||
void getCartInfo_MD() {
|
||||
cartSize = ((long(readWord_MD(0xD2)) << 16) | readWord_MD(0xD3)) + 1;
|
||||
sramSize = ((long(readWord_MD(0xDC)) << 16) | readWord_MD(0xDD)) - ((long(readWord_MD(0xDA)) << 16) | readWord_MD(0xDB)) + 2;
|
||||
|
||||
// Get name
|
||||
for (byte c = 0; c < 48; c += 2) {
|
||||
// split word
|
||||
word myWord = readWord_MD((0x150 + c) / 2);
|
||||
byte loByte = myWord & 0xFF;
|
||||
byte hiByte = myWord >> 8;
|
||||
|
||||
// write to buffer
|
||||
sdBuffer[c] = hiByte;
|
||||
sdBuffer[c + 1] = loByte;
|
||||
}
|
||||
byte myLength = 0;
|
||||
for (unsigned int i = 0; i < 48; i++) {
|
||||
if (((char(sdBuffer[i]) >= 48 && char(sdBuffer[i]) <= 57) || (char(sdBuffer[i]) >= 65 && char(sdBuffer[i]) <= 122)) && myLength < 15) {
|
||||
romName[myLength] = char(sdBuffer[i]);
|
||||
myLength++;
|
||||
}
|
||||
}
|
||||
|
||||
display_Clear();
|
||||
println_Msg(F("Cart Info"));
|
||||
println_Msg(F(" "));
|
||||
print_Msg(F("Name: "));
|
||||
println_Msg(romName);
|
||||
print_Msg(F("Size: "));
|
||||
print_Msg(cartSize / 1024 / 1024);
|
||||
println_Msg(F("MB"));
|
||||
print_Msg(F("Sram: "));
|
||||
print_Msg(sramSize / 1024);
|
||||
println_Msg(F("KB"));
|
||||
|
||||
// Wait for user input
|
||||
if (enable_OLED) {
|
||||
println_Msg(F(" "));
|
||||
println_Msg(F("Press Button..."));
|
||||
display_Update();
|
||||
wait();
|
||||
}
|
||||
}
|
||||
|
||||
// Read rom and save to the SD card
|
||||
void readROM_MD() {
|
||||
// Get name, add extension and convert to char array for sd lib
|
||||
strcpy(fileName, romName);
|
||||
strcat(fileName, ".MD");
|
||||
|
||||
// create a new folder
|
||||
EEPROM_readAnything(10, foldern);
|
||||
sprintf(folder, "MD/ROM/%s/%d", romName, foldern);
|
||||
sd.mkdir(folder, true);
|
||||
sd.chdir(folder);
|
||||
|
||||
display_Clear();
|
||||
print_Msg(F("Saving to "));
|
||||
print_Msg(folder);
|
||||
println_Msg(F("/..."));
|
||||
display_Update();
|
||||
|
||||
// write new folder number back to eeprom
|
||||
foldern = foldern + 1;
|
||||
EEPROM_writeAnything(10, foldern);
|
||||
|
||||
// Open file on sd card
|
||||
if (!myFile.open(fileName, O_RDWR | O_CREAT)) {
|
||||
print_Error(F("SD Error"), true);
|
||||
}
|
||||
|
||||
word d = 0;
|
||||
for (unsigned long currBuffer = 0; currBuffer < cartSize / 2; currBuffer += 256) {
|
||||
// Blink led
|
||||
if (currBuffer % 16384 == 0)
|
||||
PORTB ^= (1 << 4);
|
||||
|
||||
for (int currWord = 0; currWord < 256; currWord++) {
|
||||
word myWord = readWord_MD(currBuffer + currWord);
|
||||
// Split word into two bytes
|
||||
// Left
|
||||
sdBuffer[d] = (( myWord >> 8 ) & 0xFF);
|
||||
// Right
|
||||
sdBuffer[d + 1] = (myWord & 0xFF);
|
||||
d += 2;
|
||||
}
|
||||
myFile.write(sdBuffer, 512);
|
||||
d = 0;
|
||||
}
|
||||
// Close the file:
|
||||
myFile.close();
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue
Block a user