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Update NES.ino (thx to skaman)

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Changes:
Adds Mapper 30 (NESmaker) support with read/write Flash support.
Adds PRG-RAM read/write support for Mappers 4 (MMC6), 19, 80, 82.
Adds SRAM support for Family Basic (Mapper 0) carts.
This commit is contained in:
sanni 2019-11-25 11:53:45 +01:00
parent 1f2b9dcc4a
commit b856459fee
1 changed files with 518 additions and 38 deletions
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Cart_Reader/NES.ino
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@ -6,18 +6,19 @@
// Pinout changes: LED and CIRAM_A10 // Pinout changes: LED and CIRAM_A10
//Line Content //Line Content
//25 Supported Mappers //26 Supported Mappers
//99 Defines //101 Defines
//129 Variables //131 Variables
//180 Menu //189 Menu
//265 Setup //308 Setup
//294 Low Level Functions //337 Low Level Functions
//541 CRC Functions //584 CRC Functions
//596 File Functions //639 File Functions
//758 Config Functions //801 Config Functions
//1252 ROM Functions //1397 ROM Functions
//2332 RAM Functions //2490 RAM Functions
//2614 Eeprom Functions //2925 Eeprom Functions
//3115 NESmaker Flash Cart Functions
/****************************************** /******************************************
Supported Mappers Supported Mappers
@ -25,11 +26,11 @@
// Supported Mapper Array (iNES Mapper #s) // Supported Mapper Array (iNES Mapper #s)
// Format = {mapper,prglo,prghi,chrlo,chrhi,ramlo,ramhi} // Format = {mapper,prglo,prghi,chrlo,chrhi,ramlo,ramhi}
static const byte PROGMEM mapsize [] = { static const byte PROGMEM mapsize [] = {
0, 0, 1, 0, 1, 0, 0, // nrom 0, 0, 1, 0, 1, 0, 2, // nrom [sram r/w]
1, 1, 5, 0, 5, 0, 3, // mmc1 [sram r/w] 1, 1, 5, 0, 5, 0, 3, // mmc1 [sram r/w]
2, 3, 4, 0, 0, 0, 0, // uxrom 2, 3, 4, 0, 0, 0, 0, // uxrom
3, 0, 1, 0, 3, 0, 0, // cnrom 3, 0, 1, 0, 3, 0, 0, // cnrom
4, 1, 5, 0, 6, 0, 1, // mmc3 [sram r/w] 4, 1, 5, 0, 6, 0, 1, // mmc3/mmc6 [sram/prgram r/w]
5, 3, 5, 5, 7, 0, 3, // mmc5 [sram r/w] 5, 3, 5, 5, 7, 0, 3, // mmc5 [sram r/w]
7, 3, 4, 0, 0, 0, 0, // axrom 7, 3, 4, 0, 0, 0, 0, // axrom
9, 3, 3, 5, 5, 0, 0, // mmc2 (punch out) 9, 3, 3, 5, 5, 0, 0, // mmc2 (punch out)
@ -37,13 +38,14 @@ static const byte PROGMEM mapsize [] = {
13, 1, 1, 0, 0, 0, 0, // cprom (videomation) 13, 1, 1, 0, 0, 0, 0, // cprom (videomation)
16, 3, 4, 5, 6, 0, 1, // bandai x24c02 [eep r/w] 16, 3, 4, 5, 6, 0, 1, // bandai x24c02 [eep r/w]
18, 3, 4, 5, 6, 0, 1, // jaleco ss8806 [sram r/w] 18, 3, 4, 5, 6, 0, 1, // jaleco ss8806 [sram r/w]
19, 3, 4, 5, 6, 0, 1, // namco 106/163 [sram r/w] 19, 3, 4, 5, 6, 0, 1, // namco 106/163 [sram/prgram r/w]
21, 4, 4, 5, 6, 0, 1, // vrc4a/vrc4c [sram r/w] 21, 4, 4, 5, 6, 0, 1, // vrc4a/vrc4c [sram r/w]
22, 3, 3, 5, 5, 0, 0, // vrc2a 22, 3, 3, 5, 5, 0, 0, // vrc2a
23, 3, 3, 5, 6, 0, 0, // vrc2b/vrc4e 23, 3, 3, 5, 6, 0, 0, // vrc2b/vrc4e
24, 4, 4, 5, 5, 0, 0, // vrc6a (akumajou densetsu) 24, 4, 4, 5, 5, 0, 0, // vrc6a (akumajou densetsu)
25, 3, 4, 5, 6, 0, 1, // vrc2c/vrc4b/vrc4d [sram r/w] 25, 3, 4, 5, 6, 0, 1, // vrc2c/vrc4b/vrc4d [sram r/w]
26, 4, 4, 5, 6, 1, 1, // vrc6b [sram r/w] 26, 4, 4, 5, 6, 1, 1, // vrc6b [sram r/w]
30, 4, 5, 0, 0, 0, 0, // unrom 512 (NESmaker) [UNLICENSED]
32, 3, 4, 5, 5, 0, 0, // irem g-101 32, 3, 4, 5, 5, 0, 0, // irem g-101
33, 3, 4, 5, 6, 0, 0, // taito tc0190 33, 3, 4, 5, 6, 0, 0, // taito tc0190
34, 3, 3, 0, 0, 0, 0, // bnrom [nina-1 NOT SUPPORTED] 34, 3, 3, 0, 0, 0, 0, // bnrom [nina-1 NOT SUPPORTED]
@ -63,8 +65,8 @@ static const byte PROGMEM mapsize [] = {
76, 3, 3, 5, 5, 0, 0, // namco 109 variant (megami tensei: digital devil story) 76, 3, 3, 5, 5, 0, 0, // namco 109 variant (megami tensei: digital devil story)
77, 3, 3, 3, 3, 0, 0, // (napoleon senki) 77, 3, 3, 3, 3, 0, 0, // (napoleon senki)
78, 3, 3, 5, 5, 0, 0, // irem 74hc161/32 78, 3, 3, 5, 5, 0, 0, // irem 74hc161/32
80, 3, 3, 5, 6, 0, 0, // taito x1-005 80, 3, 3, 5, 6, 0, 1, // taito x1-005 [prgram r/w]
82, 3, 3, 5, 6, 0, 0, // taito x1-017 82, 3, 3, 5, 6, 0, 1, // taito x1-017 [prgram r/w]
85, 3, 5, 0, 5, 0, 1, // vrc7 [sram r/w] 85, 3, 5, 0, 5, 0, 1, // vrc7 [sram r/w]
86, 3, 3, 4, 4, 0, 0, // jaleco jf-13 (moero pro yakyuu) 86, 3, 3, 4, 4, 0, 0, // jaleco jf-13 (moero pro yakyuu)
87, 0, 1, 2, 3, 0, 0, 87, 0, 1, 2, 3, 0, 0,
@ -150,8 +152,15 @@ byte ram;
boolean vrc4e = false; boolean vrc4e = false;
byte prgchk0; byte prgchk0;
byte prgchk1; byte prgchk1;
boolean mmc6 = false;
byte prgchk2;
byte prgchk3;
int eepsize; int eepsize;
byte bytecheck; byte bytecheck;
byte firstbyte;
char flashID[5];
boolean flashfound = false; // NESmaker 39SF040 Flash Cart
// Files // Files
File sdFile; File sdFile;
@ -182,9 +191,14 @@ static const char menuItem2[] PROGMEM = "Read Complete Cart";
static const char menuItem3[] PROGMEM = "Read PRG"; static const char menuItem3[] PROGMEM = "Read PRG";
static const char menuItem4[] PROGMEM = "Read CHR"; static const char menuItem4[] PROGMEM = "Read CHR";
static const char menuItem5[] PROGMEM = "Read RAM"; static const char menuItem5[] PROGMEM = "Read RAM";
static const char menuItem6[] PROGMEM = "Write RAM"; static const char menuItem6[] PROGMEM = "Write Options";
static const char* const baseMenu[] PROGMEM = {menuItem1, menuItem2, menuItem3, menuItem4, menuItem5, menuItem6}; static const char* const baseMenu[] PROGMEM = {menuItem1, menuItem2, menuItem3, menuItem4, menuItem5, menuItem6};
static const char writeItem1[] PROGMEM = "Write RAM";
static const char writeItem2[] PROGMEM = "Write FLASH";
static const char writeItem3[] PROGMEM = "Return to Main Menu";
static const char* const writeMenu[] PROGMEM = {writeItem1, writeItem2, writeItem3};
// NES start menu // NES start menu
void nesMenu() { void nesMenu() {
display_Clear(); display_Clear();
@ -196,7 +210,7 @@ void nesMenu() {
} }
void nesCartMenu() { void nesCartMenu() {
// create menu with title " FAMICOM CART READER" and 6 options to choose from // create menu with title "NES CART READER" and 6 options to choose from
convertPgm(baseMenu, 6); convertPgm(baseMenu, 6);
unsigned char answer = question_box(F("NES CART READER"), menuOptions, 6, 0); unsigned char answer = question_box(F("NES CART READER"), menuOptions, 6, 0);
@ -250,12 +264,41 @@ void nesCartMenu() {
wait(); wait();
break; break;
// Write RAM // Write Options
case 5: case 5:
nesCartWriteMenu();
wait();
break;
}
}
void nesCartWriteMenu() {
// create menu with title "WRITE OPTIONS MENU" and 3 options to choose from
convertPgm(writeMenu, 3);
unsigned char answer = question_box(F("WRITE OPTIONS MENU"), menuOptions, 3, 0);
// wait for user choice to come back from the question box menu
switch (answer) {
// Write RAM
case 0:
writeRAM(); writeRAM();
resetROM(); resetROM();
wait(); wait();
break; break;
// Write FLASH
case 1:
if (mapper == 30)
writeFLASH();
resetROM();
wait();
break;
// Return to Main Menu
case 2:
nesCartMenu();
wait();
break;
} }
} }
@ -780,8 +823,8 @@ chooseMapper:
display.setCursor(63, 20); display.setCursor(63, 20);
display.println(units); display.println(units);
display.println(""); display.println("");
display.println(F("Press to change")); display.println(F("Press to Change"));
display.println(F("Hold to select")); display.println(F("Hold to Select"));
if (digit == 0) { if (digit == 0) {
display.drawLine(20, 30, 30, 30, WHITE); display.drawLine(20, 30, 30, 30, WHITE);
display.drawLine(40, 30, 50, 30, BLACK); display.drawLine(40, 30, 50, 30, BLACK);
@ -1102,10 +1145,20 @@ void setRAMSize() {
while (1) { while (1) {
display_Clear(); display_Clear();
print_Msg(F("RAM Size: ")); print_Msg(F("RAM Size: "));
if (mapper == 16) if (mapper == 0)
println_Msg(RAM[i] / 4);
else if (mapper == 16)
println_Msg(RAM[i] * 32); println_Msg(RAM[i] * 32);
else if (mapper == 159) else if (mapper == 19) {
if (i == 2)
println_Msg(F("128"));
else
println_Msg(RAM[i]);
}
else if ((mapper == 159) || (mapper == 80))
println_Msg(RAM[i] * 16); println_Msg(RAM[i] * 16);
else if (mapper == 82)
println_Msg(i * 5);
else else
println_Msg(RAM[i]); println_Msg(RAM[i]);
println_Msg(F("")); println_Msg(F(""));
@ -1143,8 +1196,27 @@ void setRAMSize() {
print_Msg(sizeEEP); print_Msg(sizeEEP);
println_Msg(F("B")); println_Msg(F("B"));
} }
else if (mapper == 19) {
print_Msg(F("RAM SIZE "));
if (newramsize == 2)
println_Msg(F("128B"));
else {
print_Msg(RAM[newramsize]);
println_Msg(F("K"));
}
}
else if (mapper == 80) {
print_Msg(F("RAM SIZE "));
print_Msg(RAM[newramsize] * 16);
println_Msg(F("B"));
}
else { else {
print_Msg(F("RAM SIZE ")); print_Msg(F("RAM SIZE "));
if (mapper == 0)
print_Msg(newramsize * 2);
else if (mapper == 82)
print_Msg(newramsize * 5);
else
print_Msg(RAM[newramsize]); print_Msg(RAM[newramsize]);
println_Msg(F("K")); println_Msg(F("K"));
} }
@ -1160,13 +1232,25 @@ setram:
Serial.print(F("Select RAM Size: ")); Serial.print(F("Select RAM Size: "));
Serial.print(i); Serial.print(i);
Serial.print(F(" = ")); Serial.print(F(" = "));
if ((mapper == 16) || (mapper == 159)) { if (mapper == 0) {
Serial.println(RAM[i] / 4);
Serial.println(F("K"));
}
else if ((mapper == 16) || (mapper == 159)) {
if (mapper == 16) if (mapper == 16)
Serial.print(RAM[i + ramlo] * 32); Serial.print(RAM[i + ramlo] * 32);
else else
Serial.print(RAM[i + ramlo] * 16); Serial.print(RAM[i + ramlo] * 16);
Serial.println(F("B")); Serial.println(F("B"));
} }
else if (mapper == 19) {
if (i == 2)
Serial.println(F("128B"));
else {
Serial.print(RAM[i + ramlo]);
Serial.println(F("K"));
}
}
else { else {
Serial.print(RAM[i + ramlo]); Serial.print(RAM[i + ramlo]);
Serial.println(F("K")); Serial.println(F("K"));
@ -1194,8 +1278,29 @@ setram:
Serial.println(F("B")); Serial.println(F("B"));
Serial.println(F("")); Serial.println(F(""));
} }
else if (mapper == 19) {
Serial.print(F("RAM Size = "));
if (newramsize == 2)
Serial.println(F("128B"));
else {
Serial.print(RAM[newramsize]);
Serial.println(F("K"));
}
Serial.println(F(""));
}
else if (mapper == 80) {
Serial.print(F("RAM Size = "));
Serial.print(RAM[newramsize] * 16);
Serial.println(F("B"));
Serial.println(F(""));
}
else { else {
Serial.print(F("RAM Size = ")); Serial.print(F("RAM Size = "));
if (mapper == 0)
Serial.print(newramsize * 2);
else if (mapper == 82)
Serial.print(newramsize * 5);
else
Serial.print(RAM[newramsize]); Serial.print(RAM[newramsize]);
Serial.println(F("K")); Serial.println(F("K"));
Serial.println(F("")); Serial.println(F(""));
@ -1205,6 +1310,20 @@ setram:
ramsize = newramsize; ramsize = newramsize;
} }
// MMC6 Detection
// Mapper 4 includes both MMC3 AND MMC6
// RAM is mapped differently between MMC3 and MMC6
void checkMMC6() { // Detect MMC6 Carts - read PRG 0x3E00A ("STARTROPICS")
write_prg_byte(0x8000, 6); // PRG Bank 0 ($8000-$9FFF)
write_prg_byte(0x8001, 0x1F); // 0x3E000
prgchk0 = read_prg_byte(0x800A);
prgchk1 = read_prg_byte(0x800B);
prgchk2 = read_prg_byte(0x800C);
prgchk3 = read_prg_byte(0x800D);
if ((prgchk0 == 0x53) && (prgchk1 == 0x54) && (prgchk2 == 0x41) && (prgchk3 == 0x52))
mmc6 = true; // MMC6 Cart
}
void checkStatus_NES() { void checkStatus_NES() {
EEPROM_readAnything(7, mapper); EEPROM_readAnything(7, mapper);
EEPROM_readAnything(8, prgsize); EEPROM_readAnything(8, prgsize);
@ -1217,9 +1336,21 @@ void checkStatus_NES() {
chr = (int_pow(2, chrsize)) * 4; chr = (int_pow(2, chrsize)) * 4;
if (ramsize == 0) if (ramsize == 0)
ram = 0; // 0K ram = 0; // 0K
else if (mapper == 82)
ram = 5; // 5K
else else
ram = (int_pow(2, ramsize)) * 4; ram = (int_pow(2, ramsize)) * 4;
// Mapper Variants
// Identify variant for use across multiple functions
if (mapper == 4) { // Check for MMC6/MMC3
checkMMC6();
if (mmc6)
ram = 1; // 1K
}
else if (mapper == 30) // Check for Flashable/Non-Flashable
NESmaker_ID(); // Flash ID
display_Clear(); display_Clear();
println_Msg(F("NES CART READER")); println_Msg(F("NES CART READER"));
println_Msg(F("CURRENT SETTINGS")); println_Msg(F("CURRENT SETTINGS"));
@ -1233,13 +1364,25 @@ void checkStatus_NES() {
print_Msg(chr); print_Msg(chr);
println_Msg(F("K")); println_Msg(F("K"));
print_Msg(F("RAM SIZE: ")); print_Msg(F("RAM SIZE: "));
if ((mapper == 16) || (mapper == 159)) { if (mapper == 0) {
print_Msg(ram / 4);
println_Msg(F("K"));
}
else if ((mapper == 16) || (mapper == 80) || (mapper == 159)) {
if (mapper == 16) if (mapper == 16)
print_Msg(ram * 32); print_Msg(ram * 32);
else else
print_Msg(ram * 16); print_Msg(ram * 16);
println_Msg(F("B")); println_Msg(F("B"));
} }
else if (mapper == 19) {
if (ramsize == 2)
println_Msg(F("128B"));
else {
print_Msg(ram);
println_Msg(F("K"));
}
}
else { else {
print_Msg(ram); print_Msg(ram);
println_Msg(F("K")); println_Msg(F("K"));
@ -1330,7 +1473,7 @@ void readPRG() {
} }
break; break;
case 2: case 2: // 128K/256K
for (int i = 0; i < 8; i++) { // 128K/256K for (int i = 0; i < 8; i++) { // 128K/256K
write_prg_byte(0x8000, i); write_prg_byte(0x8000, i);
for (word address = 0x0; address < (((prgsize - 3) * 0x4000) + 0x4000); address += 512) { for (word address = 0x0; address < (((prgsize - 3) * 0x4000) + 0x4000); address += 512) {
@ -1481,6 +1624,19 @@ void readPRG() {
} }
break; break;
case 30: // 256K/512K
banks = int_pow(2, prgsize);
for (int i = 0; i < banks; i++) { // 256K/512K
if (flashfound)
write_prg_byte(0xC000, i); // Flashable
else
write_prg_byte(0x8000, i); // Non-Flashable
for (word address = 0x0; address < 0x4000; address += 512) { // 16K Banks ($8000-$BFFF)
dumpPRG(base, address);
}
}
break;
case 32: // 128K/256K case 32: // 128K/256K
banks = int_pow(2, prgsize) * 2; banks = int_pow(2, prgsize) * 2;
for (int i = 0; i < banks; i++) { // 128K/256K for (int i = 0; i < banks; i++) { // 128K/256K
@ -2349,6 +2505,12 @@ void readRAM() {
word base = 0x6000; word base = 0x6000;
if (sdFile) { if (sdFile) {
switch (mapper) { switch (mapper) {
case 0: // 2K/4K
for (word address = 0x0; address < (0x800 * ramsize); address += 512) { // 2K/4K
dumpPRG(base, address); // SWITCH MUST BE IN OFF POSITION
}
break;
case 1: case 1:
case 155: // 8K/16K/32K case 155: // 8K/16K/32K
banks = int_pow(2, ramsize) / 2; // banks = 1,2,4 banks = int_pow(2, ramsize) / 2; // banks = 1,2,4
@ -2366,6 +2528,28 @@ void readRAM() {
} }
break; break;
case 4: // 1K/8K (MMC6/MMC3)
if (mmc6) { // MMC6 1K
write_prg_byte(0x8000, 0x20); // PRG RAM ENABLE
write_prg_byte(0xA001, 0x20); // PRG RAM PROTECT - Enable reading RAM at $7000-$71FF
for (word address = 0x1000; address < 0x1200; address += 512) { // 512B
dumpMMC5RAM(base, address);
}
write_prg_byte(0x8000, 0x20); // PRG RAM ENABLE
write_prg_byte(0xA001, 0x80); // PRG RAM PROTECT - Enable reading RAM at $7200-$73FF
for (word address = 0x1200; address < 0x1400; address += 512) { // 512B
dumpMMC5RAM(base, address);
}
write_prg_byte(0x8000, 6); // PRG RAM DISABLE
}
else { // MMC3 8K
write_prg_byte(0xA001, 0xC0); // PRG RAM CHIP ENABLE - Chip Enable, Write Protect
for (word address = 0; address < 0x2000; address += 512) { // 8K
dumpPRG(base, address);
}
}
break;
case 5: // 8K/16K/32K case 5: // 8K/16K/32K
write_prg_byte(0x5100, 3); // 8K PRG Banks write_prg_byte(0x5100, 3); // 8K PRG Banks
banks = int_pow(2, ramsize) / 2; // banks = 1,2,4 banks = int_pow(2, ramsize) / 2; // banks = 1,2,4
@ -2406,8 +2590,49 @@ void readRAM() {
// display_Clear(); // TEST PURPOSES - DISPLAY EEPROM DATA // display_Clear(); // TEST PURPOSES - DISPLAY EEPROM DATA
break; break;
case 19:
if (ramsize == 2) { // PRG RAM 128B
for (int x = 0; x < 128; x++) {
write_ram_byte(0xF800, x); // PRG RAM ENABLE
sdBuffer[x] = read_prg_byte(0x4800); // DATA PORT
}
sdFile.write(sdBuffer, 128);
}
else { // SRAM 8K
for (int i = 0; i < 64; i++) { // Init Register
write_ram_byte(0xE000, 0);
}
for (word address = 0; address < 0x2000; address += 512) { // 8K
dumpPRG(base, address);
}
}
break;
case 80: // 1K
write_prg_byte(0x7EF8, 0xA3); // PRG RAM ENABLE 0
write_prg_byte(0x7EF9, 0xA3); // PRG RAM ENABLE 1
for (int x = 0; x < 128; x++) { // PRG RAM 1K ($7F00-$7FFF) MIRRORED ONCE
sdBuffer[x] = read_prg_byte(0x7F00 + x);
}
sdFile.write(sdBuffer, 128);
write_prg_byte(0x7EF8, 0xFF); // PRG RAM DISABLE 0
write_prg_byte(0x7EF9, 0xFF); // PRG RAM DISABLE 1
break;
case 82: // 5K
write_prg_byte(0x7EF7, 0xCA); // PRG RAM ENABLE 0 ($6000-$67FF)
write_prg_byte(0x7EF8, 0x69); // PRG RAM ENABLE 1 ($6800-$6FFF)
write_prg_byte(0x7EF9, 0x84); // PRG RAM ENABLE 2 ($7000-$73FF)
for (word address = 0x0; address < 0x1400; address += 512) { // PRG RAM 5K ($6000-$73FF)
dumpMMC5RAM(base, address);
}
write_prg_byte(0x7EF7, 0xFF); // PRG RAM DISABLE 0 ($6000-$67FF)
write_prg_byte(0x7EF8, 0xFF); // PRG RAM DISABLE 1 ($6800-$6FFF)
write_prg_byte(0x7EF9, 0xFF); // PRG RAM DISABLE 2 ($7000-$73FF)
break;
default: default:
if ((mapper == 4) || (mapper == 118)) // 8K if (mapper == 118) // 8K
write_prg_byte(0xA001, 0xC0); // PRG RAM CHIP ENABLE - Chip Enable, Write Protect write_prg_byte(0xA001, 0xC0); // PRG RAM CHIP ENABLE - Chip Enable, Write Protect
else if (mapper == 19) { else if (mapper == 19) {
for (int i = 0; i < 64; i++) { // Init Register for (int i = 0; i < 64; i++) { // Init Register
@ -2477,6 +2702,15 @@ void writeRAM () {
//open file on sd card //open file on sd card
if (sdFile.open(filePath, O_READ)) { if (sdFile.open(filePath, O_READ)) {
switch (mapper) { switch (mapper) {
case 0: // 2K/4K
for (word address = 0x0; address < (0x800 * ramsize); address += 512) { // 2K/4K
sdFile.read(sdBuffer, 512);
for (int x = 0; x < 512; x++){
write_prg_byte(base + address + x, sdBuffer[x]); // SWITCH MUST BE IN OFF POSITION
}
}
break;
case 1: case 1:
case 155: case 155:
banks = int_pow(2, ramsize) / 2; // banks = 1,2,4 banks = int_pow(2, ramsize) / 2; // banks = 1,2,4
@ -2497,6 +2731,38 @@ void writeRAM () {
} }
break; break;
case 4: // 1K/8K (MMC6/MMC3)
if (mmc6) { // MMC6 1K
write_prg_byte(0x8000, 0x20); // PRG RAM ENABLE
write_prg_byte(0xA001, 0x30); // PRG RAM PROTECT - Enable reading/writing to RAM at $7000-$71FF
for (word address = 0x1000; address < 0x1200; address += 512) { // 512B
sdFile.read(sdBuffer, 512);
for (int x = 0; x < 512; x++){
write_wram_byte(base + address + x, sdBuffer[x]);
}
}
write_prg_byte(0x8000, 0x20); // PRG RAM ENABLE
write_prg_byte(0xA001, 0xC0); // PRG RAM PROTECT - Enable reading/writing to RAM at $7200-$73FF
for (word address = 0x1200; address < 0x1400; address += 512) { // 512B
sdFile.read(sdBuffer, 512);
for (int x = 0; x < 512; x++){
write_wram_byte(base + address + x, sdBuffer[x]);
}
}
write_prg_byte(0x8000, 0x6); // PRG RAM DISABLE
}
else { // MMC3 8K
write_prg_byte(0xA001, 0x80); // PRG RAM CHIP ENABLE - Chip Enable, Allow Writes
for (word address = 0; address < 0x2000; address += 512) { // 8K
sdFile.read(sdBuffer, 512);
for (int x = 0; x < 512; x++){
write_prg_byte(base + address + x, sdBuffer[x]);
}
}
write_prg_byte(0xA001, 0xC0); // PRG RAM CHIP ENABLE - Chip Enable, Write Protect
}
break;
case 5: // 8K/16K/32K case 5: // 8K/16K/32K
write_prg_byte(0x5100, 3); // 8K PRG Banks write_prg_byte(0x5100, 3); // 8K PRG Banks
banks = int_pow(2, ramsize) / 2; // banks = 1,2,4 banks = int_pow(2, ramsize) / 2; // banks = 1,2,4
@ -2540,15 +2806,64 @@ void writeRAM () {
} }
break; break;
default: case 19:
if ((mapper == 4) || (mapper == 118)) // 8K if (ramsize == 2) { // PRG RAM 128B
write_prg_byte(0xA001, 0x80); // PRG RAM CHIP ENABLE - Chip Enable, Allow Writes sdFile.read(sdBuffer, 128);
else if (mapper == 19) { for (int x = 0; x < 128; x++) {
write_ram_byte(0xF800, x); // PRG RAM ENABLE
write_prg_byte(0x4800, sdBuffer[x]); // DATA PORT
}
}
else { // SRAM 8K
for (int i = 0; i < 64; i++) { // Init Register for (int i = 0; i < 64; i++) { // Init Register
write_ram_byte(0xF800, 0x40); // PRG RAM WRITE ENABLE write_ram_byte(0xF800, 0x40); // PRG RAM WRITE ENABLE
} }
write_ram_byte(0xF800, 0x40); // PRG RAM WRITE ENABLE write_ram_byte(0xF800, 0x40); // PRG RAM WRITE ENABLE
for (word address = 0; address < 0x2000; address += 512) { // 8K
sdFile.read(sdBuffer, 512);
for (int x = 0; x < 512; x++){
write_prg_byte(base + address + x, sdBuffer[x]);
} }
}
write_ram_byte(0xF800, 0x0F); // PRG RAM WRITE PROTECT
}
break;
case 80: // 1K
write_prg_byte(0x7EF8, 0xA3); // PRG RAM ENABLE 0
write_prg_byte(0x7EF9, 0xA3); // PRG RAM ENABLE 1
for (word address = 0x1F00; address < 0x2000; address += 512) { // PRG RAM 1K ($7F00-$7FFF)
sdFile.read(sdBuffer, 128);
for (int x = 0; x < 128; x++){
write_prg_byte(base + address + x, sdBuffer[x]);
}
}
write_prg_byte(0x7EF8, 0xFF); // PRG RAM DISABLE 0
write_prg_byte(0x7EF9, 0xFF); // PRG RAM DISABLE 1
break;
case 82: // 5K
write_prg_byte(0x7EF7, 0xCA); // PRG RAM ENABLE 0 ($6000-$67FF)
write_prg_byte(0x7EF8, 0x69); // PRG RAM ENABLE 1 ($6800-$6FFF)
write_prg_byte(0x7EF9, 0x84); // PRG RAM ENABLE 2 ($7000-$73FF)
for (word address = 0x0; address < 0x1400; address += 1024) { // PRG RAM 5K ($6000-$73FF)
sdFile.read(sdBuffer, 512);
firstbyte = sdBuffer[0];
for (int x = 0; x < 512; x++)
write_prg_byte(base + address + x, sdBuffer[x]);
sdFile.read(sdBuffer, 512);
for (int x = 0; x < 512; x++)
write_prg_byte(base + address + x + 512, sdBuffer[x]);
write_prg_byte(base + address, firstbyte); // REWRITE 1ST BYTE
}
write_prg_byte(0x7EF7, 0xFF); // PRG RAM DISABLE 0 ($6000-$67FF)
write_prg_byte(0x7EF8, 0xFF); // PRG RAM DISABLE 1 ($6800-$6FFF)
write_prg_byte(0x7EF9, 0xFF); // PRG RAM DISABLE 2 ($7000-$73FF)
break;
default:
if (mapper == 118) // 8K
write_prg_byte(0xA001, 0x80); // PRG RAM CHIP ENABLE - Chip Enable, Allow Writes
else if ((mapper == 21) || (mapper == 25)) // 8K else if ((mapper == 21) || (mapper == 25)) // 8K
write_prg_byte(0x8000, 0); write_prg_byte(0x8000, 0);
else if (mapper == 26) // 8K else if (mapper == 26) // 8K
@ -2569,10 +2884,8 @@ void writeRAM () {
write_prg_byte(base + address + x, sdBuffer[x]); write_prg_byte(base + address + x, sdBuffer[x]);
} }
} }
if ((mapper == 4) || (mapper == 118)) // 8K if (mapper == 118) // 8K
write_prg_byte(0xA001, 0xC0); // PRG RAM CHIP ENABLE - Chip Enable, Write Protect write_prg_byte(0xA001, 0xC0); // PRG RAM CHIP ENABLE - Chip Enable, Write Protect
else if (mapper == 19)
write_ram_byte(0xF800, 0x0F); // PRG RAM WRITE PROTECT
else if (mapper == 26) // 8K else if (mapper == 26) // 8K
write_prg_byte(0xB003, 0); // PRG RAM DISABLE write_prg_byte(0xB003, 0); // PRG RAM DISABLE
// else if (mapper == 68) // 8K // else if (mapper == 68) // 8K
@ -2605,6 +2918,7 @@ void writeRAM () {
sd.chdir(); // root sd.chdir(); // root
filePath[0] = '\0'; // Reset filePath filePath[0] = '\0'; // Reset filePath
} }
/****************************************** /******************************************
Eeprom Functions Eeprom Functions
*****************************************/ *****************************************/
@ -2795,6 +3109,172 @@ void EepromWRITE(byte address) {
EepromStop_NES(); // STOP EepromStop_NES(); // STOP
} }
/******************************************
NESmaker Flash Cart [SST 39SF40]
*****************************************/
void NESmaker_ResetFlash() { // Reset Flash
write_prg_byte(0xC000, 0x01);
write_prg_byte(0x9555, 0xAA);
write_prg_byte(0xC000, 0x00);
write_prg_byte(0xAAAA, 0x55);
write_prg_byte(0xC000, 0x01);
write_prg_byte(0x9555, 0xFF); // Reset
}
// SST 39SF040 Software ID
void NESmaker_ID() { // Read Flash ID
NESmaker_ResetFlash();
write_prg_byte(0xC000, 0x01);
write_prg_byte(0x9555, 0xAA);
write_prg_byte(0xC000, 0x00);
write_prg_byte(0xAAAA, 0x55);
write_prg_byte(0xC000, 0x01);
write_prg_byte(0x9555, 0x90); // Software ID Entry
unsigned char ID1 = read_prg_byte(0x8000);
unsigned char ID2 = read_prg_byte(0x8001);
sprintf(flashID, "%02X%02X", ID1, ID2);
write_prg_byte(0xC000, 0x01);
write_prg_byte(0x9555, 0xAA);
write_prg_byte(0xC000, 0x00);
write_prg_byte(0xAAAA, 0x55);
write_prg_byte(0xC000, 0x01);
write_prg_byte(0x9555, 0xF0); // Software ID Exit
if(strcmp(flashID, "BFB7") == 0) // SST 39SF040
flashfound = 1;
}
void NESmaker_SectorErase(byte bank, word address) {
write_prg_byte(0xC000, 0x01);
write_prg_byte(0x9555, 0xAA);
write_prg_byte(0xC000, 0x00);
write_prg_byte(0xAAAA, 0x55);
write_prg_byte(0xC000, 0x01);
write_prg_byte(0x9555, 0x80);
write_prg_byte(0xC000, 0x01);
write_prg_byte(0x9555, 0xAA);
write_prg_byte(0xC000, 0x00);
write_prg_byte(0xAAAA, 0x55);
write_prg_byte(0xC000, bank); // $00-$1F
write_prg_byte(address, 0x30); // Sector Erase ($8000/$9000/$A000/$B000)
}
void NESmaker_ByteProgram(byte bank, word address, byte data) {
write_prg_byte(0xC000, 0x01);
write_prg_byte(0x9555, 0xAA);
write_prg_byte(0xC000, 0x00);
write_prg_byte(0xAAAA, 0x55);
write_prg_byte(0xC000, 0x01);
write_prg_byte(0x9555, 0xA0);
write_prg_byte(0xC000, bank); // $00-$1F
write_prg_byte(address, data); // $8000-$BFFF
}
// SST 39SF040 Chip Erase [NOT IMPLEMENTED]
void NESmaker_ChipErase() { // Typical 70ms
write_prg_byte(0xC000, 0x01);
write_prg_byte(0x9555, 0xAA);
write_prg_byte(0xC000, 0x00);
write_prg_byte(0xAAAA, 0x55);
write_prg_byte(0xC000, 0x01);
write_prg_byte(0x9555, 0x80);
write_prg_byte(0xC000, 0x01);
write_prg_byte(0x9555, 0xAA);
write_prg_byte(0xC000, 0x00);
write_prg_byte(0xAAAA, 0x55);
write_prg_byte(0xC000, 0x01);
write_prg_byte(0x9555, 0x10); // Chip Erase
}
void writeFLASH() {
display_Clear();
if (!flashfound) {
LED_RED_ON;
println_Msg(F("FLASH NOT DETECTED"));
display_Update();
}
else {
print_Msg(F("Flash ID: "));
println_Msg(flashID);
println_Msg(F(""));
println_Msg(F("NESmaker Flash Found"));
println_Msg(F(""));
display_Update();
delay(100);
fileBrowser(F("Select FLASH File"));
word base = 0x8000;
sd.chdir();
sprintf(filePath, "%s/%s", filePath, fileName);
LED_RED_ON;
display_Clear();
println_Msg(F("Writing File: "));
println_Msg(filePath);
println_Msg(fileName);
display_Update();
//open file on sd card
if (sdFile.open(filePath, O_READ)) {
banks = int_pow(2, prgsize); // 256K/512K
for (int i = 0; i < banks; i++) { // 16K Banks
for (word sector = 0; sector < 0x4000; sector += 0x1000) { // 4K Sectors ($8000/$9000/$A000/$B000)
// Sector Erase
NESmaker_SectorErase(i, base + sector);
delay(18); // Typical 18ms
for (byte j = 0; j < 2; j++) { // Confirm erase twice
do {
bytecheck = read_prg_byte(base + sector);
delay(18);
}
while (bytecheck != 0xFF);
}
// Program Byte
for (word addr = 0x0; addr < 0x1000; addr += 512) {
sdFile.read(sdBuffer, 512);
for (int x = 0; x < 512; x++) {
word location = base + sector + addr + x;
NESmaker_ByteProgram(i, base + sector + addr + x, sdBuffer[x]);
delayMicroseconds(14); // Typical 14us
for (byte k = 0; k < 2; k++) { // Confirm write twice
do {
bytecheck = read_prg_byte(base + sector + addr + x);
delayMicroseconds(14);
}
while (bytecheck != sdBuffer[x]);
}
}
}
}
#ifdef OLED
display.print(F("*"));
display.display();
#else
Serial.print(F("*"));
if ((i != 0) && ((i + 1) % 16 == 0))
Serial.println(F(""));
#endif
}
sdFile.close();
LED_GREEN_ON;
println_Msg(F(""));
println_Msg(F("FLASH FILE WRITTEN!"));
display_Update();
}
else {
LED_RED_ON;
println_Msg(F("SD ERROR"));
display_Update();
}
}
display_Clear();
LED_RED_OFF;
LED_GREEN_OFF;
sd.chdir(); // root
filePath[0] = '\0'; // Reset filePath
}
//****************************************** //******************************************
// End of File // End of File
//****************************************** //******************************************