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V20 Changed N64 timing a bit

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Hopefully I didn't break anything :x
This commit is contained in:
sanni 2017-01-29 19:00:12 +01:00 committed by GitHub
parent 94a7337d22
commit 6bcdc9526c
3 changed files with 103 additions and 62 deletions
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8
Cart_Reader/Cart_Reader.ino
View File

@ -2,15 +2,15 @@
Cartridge Reader for Arduino Mega2560
Author: sanni
Date: 2017-01-12
Version: V19L
Date: 2017-01-29
Version: V20
SD lib: https://github.com/greiman/SdFat
LCD lib: https://github.com/adafruit/Adafruit_SSD1306
Clockgen: https://github.com/etherkit/Si5351Arduino
RGB Tools lib: https://github.com/joushx/Arduino-RGB-Tools
Compiled with Arduino 1.6.11
Compiled with Arduino 1.8.0
Thanks to:
MichlK - ROM-Reader for Super Nintendo
@ -34,7 +34,7 @@
YamaArashi - GBA flashrom bank switch command
**********************************************************************************/
char ver[5] = "V19L";
char ver[5] = "V20";
/******************************************
Define Output

126
Cart_Reader/GB.ino
View File

@ -104,8 +104,8 @@ void setup_GB() {
// Set Data Pins (D0-D7) to Input
DDRC = 0x00;
// Enable Internal Pullups
//PORTC = 0xFF;
// Disable Internal Pullups
PORTC = 0x00;
// Print start page
getCartInfo_GB();
@ -244,6 +244,12 @@ void setup_GB() {
/******************************************
Low level functions
*****************************************/
// Switch data pins to read
void dataIn_GB() {
// Set to Input
DDRC = 0x00;
}
byte readByte_GB(word myAddress) {
PORTF = myAddress & 0xFF;
PORTK = (myAddress >> 8) & 0xFF;
@ -390,7 +396,7 @@ void readROM_GB() {
dataOut();
// Set ROM bank
writeByte_GB(0x2100, y);
dataIn();
dataIn_GB();
if (y > 1) {
addr = 0x4000;
}
@ -525,7 +531,7 @@ void readSRAM_GB() {
writeByte_GB(0x4000, bank);
// Read RAM
dataIn();
dataIn_GB();
for (addr = 0xA000; addr <= endaddr; addr = addr + 64) {
uint8_t readData[64];
for (int i = 0; i < 64; i++) {
@ -537,7 +543,7 @@ void readSRAM_GB() {
dataOut();
// Disable RAM
writeByte_GB(0x0000, 0x00);
dataIn();
dataIn_GB();
}
else {
print_Error(F("Cart has no SRAM"), false);
@ -616,7 +622,7 @@ void writeSRAM_GB() {
print_Error(F("Cart has no SRAM"), false);
}
// Set pins to input
dataIn();
dataIn_GB();
// Close the file:
myFile.close();
@ -665,7 +671,7 @@ unsigned long verifySRAM_GB() {
writeByte_GB(0x4000, bank);
// Read RAM
dataIn();
dataIn_GB();
for (addr = 0xA000; addr <= endaddr; addr = addr + 64) {
//fill sdBuffer
myFile.read(sdBuffer, 64);
@ -679,7 +685,7 @@ unsigned long verifySRAM_GB() {
dataOut();
// Disable RAM
writeByte_GB(0x0000, 0x00);
dataIn();
dataIn_GB();
}
// Close the file:
myFile.close();
@ -716,7 +722,7 @@ void writeFlash_GB() {
romType = myFile.read();
romSize = myFile.read();
// Go back to file beginning
myFile.seekCur(0);
myFile.seekSet(0);
numBanks = 2; // Default 32K
if (romSize == 1) {
@ -759,8 +765,10 @@ void writeFlash_GB() {
// Set data pins to output
dataOut();
// Set ROM bank 1
writeByte_GB(0x2100, 1);
// Set ROM bank hi 0
writeByte_GB(0x3000, 0);
// Set ROM bank low 0
writeByte_GB(0x2000, 0);
delay(100);
// Reset flash
@ -772,7 +780,7 @@ void writeFlash_GB() {
writeByte_GB(0x2aa, 0x55);
writeByte_GB(0x555, 0x90);
dataIn();
dataIn_GB();
// Read the two id bytes into a string
sprintf(flashid, "%02X%02X", readByte_GB(0), readByte_GB(1));
@ -781,7 +789,7 @@ void writeFlash_GB() {
println_Msg(F("MBM29F033C"));
print_Msg(F("Banks: "));
print_Msg(numBanks);
println_Msg(F("/256"));
println_Msg(F("/255"));
display_Update();
}
else if (strcmp(flashid, "0141") == 0) {
@ -821,7 +829,7 @@ void writeFlash_GB() {
writeByte_GB(0x2aa, 0x55);
writeByte_GB(0x555, 0x10);
dataIn();
dataIn_GB();
// Read the status register
byte statusReg = readByte_GB(0);
@ -839,32 +847,25 @@ void writeFlash_GB() {
println_Msg(F("Blankcheck"));
display_Update();
unsigned int addr = 0;
// Read x number of banks
for (int y = 1; y < numBanks; y++) {
for (int currBank = 0; currBank < numBanks; currBank++) {
// Blink led
PORTB ^= (1 << 4);
dataOut();
// Set ROM bank
writeByte_GB(0x2100, y);
writeByte_GB(0x2000, currBank);
dataIn();
if (y > 1) {
addr = 0x4000;
}
for (; addr <= 0x7FFF; addr += 512) {
for (unsigned int currAddr = 0x4000; currAddr < 0x7FFF; currAddr += 512) {
uint8_t readData[512];
for (int i = 0; i < 512; i++) {
readData[i] = readByte_GB(addr + i);
for (int currByte = 0; currByte < 512; currByte++) {
readData[currByte] = readByte_GB(currAddr + currByte);
}
for (int j = 0; j < 512; j++) {
if (readData[j] != 0xFF) {
println_Msg(F("Not empty"));
display_Update();
print_Error(F("Erase failed"), true);
}
}
@ -875,42 +876,37 @@ void writeFlash_GB() {
display_Update();
// Write flash
addr = 0;
dataOut();
for (int y = 1; y < numBanks; y++) {
for (int currBank = 0; currBank < numBanks; currBank++) {
// Blink led
PORTB ^= (1 << 4);
// Set ROM bank
writeByte_GB(0x2100, y);
writeByte_GB(0x2000, currBank);
if (y > 1) {
addr = 0x4000;
}
for (; addr <= 0x7FFF; addr += 512) {
for (unsigned int currAddr = 0x4000; currAddr < 0x7FFF; currAddr += 512) {
myFile.read(sdBuffer, 512);
for (int c = 0; c < 512; c++) {
for (int currByte = 0; currByte < 512; currByte++) {
// Write command sequence
writeByte_GB(0x555, 0xaa);
writeByte_GB(0x2aa, 0x55);
writeByte_GB(0x555, 0xa0);
// Write current byte
writeByte_GB(addr + c, sdBuffer[c]);
writeByte_GB(currAddr + currByte, sdBuffer[currByte]);
// Set data pins to input
dataIn();
// Switch CS(PH3) and RD(PH6) to LOW
// Setting CS(PH3) and OE/RD(PH6) LOW
PORTH &= ~((1 << 3) | (1 << 6));
__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t");
// Busycheck
while ((PINC & 0x80) != (sdBuffer[c] & 0x80)) {
// Busy check
while ((PINC & 0x80) != (sdBuffer[currByte] & 0x80)) {
}
// Switch CS(PH3) and RD(PH6) to HIGH
// Switch CS(PH3) and OE/RD(PH6) to HIGH
PORTH |= (1 << 3) | (1 << 6);
// Set data pins to output
@ -918,15 +914,57 @@ void writeFlash_GB() {
}
}
}
// Set data pins to input again
dataIn();
// Set data pins to input again
dataIn_GB();
println_Msg(F("Verifying"));
display_Update();
// Go back to file beginning
myFile.seekSet(0);
unsigned int addr = 0;
writeErrors = 0;
// Verify flashrom
for (int y = 1; y < numBanks; y++) {
// Set ROM bank
dataOut();
writeByte_GB(0x2100, y);
dataIn_GB();
// Blink led
PORTB ^= (1 << 4);
if (y > 1) {
addr = 0x4000;
}
for (; addr <= 0x7FFF; addr = addr + 512) {
// Fill sdBuffer
myFile.read(sdBuffer, 512);
// Compare
for (int i = 0; i < 512; i++) {
if (readByte_GB(addr + i) != sdBuffer[i]) {
writeErrors++;
}
}
}
}
// Close the file:
myFile.close();
println_Msg(F("Done"));
if (writeErrors == 0) {
println_Msg(F("OK"));
display_Update();
}
else {
print_Msg(F("Error: "));
print_Msg(writeErrors);
println_Msg(F(" bytes "));
print_Error(F("did not verify."), false);
}
}
else {
println_Msg(F("Can't open file"));
display_Update();

29
Cart_Reader/N64.ino
View File

@ -277,6 +277,9 @@ void setup_N64_Cart() {
// Activate Internal Pullup Resistors
//PORTH |= (1 << 4);
// Wait until all is stable
delay(500);
// Print start page
getCartInfo_N64();
if (cartSize != 0) {
@ -365,27 +368,33 @@ void setAddress_N64(unsigned long myAddress) {
PORTF = myAdrHighOut & 0xFF;
PORTK = (myAdrHighOut >> 8) & 0xFF;
// Leave ale_H and ale_L high for ~120ns
// Leave ale_H high for additional 120ns
__asm__("nop\n\t""nop\n\t");
// Pull ale_H(PC1) low
PORTC &= ~(1 << 1);
// Leave address pins stable for a little bit
__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t");
// Output low part to address pins
PORTF = myAdrLowOut & 0xFF;
PORTK = (myAdrLowOut >> 8) & 0xFF;
// Leave ale_L high for another ~110ns
__asm__("nop\n\t""nop\n\t");
// Leave ale_L high for ~180ns
__asm__("nop\n\t""nop\n\t""nop\n\t");
// Pull ale_L(PC0) low
PORTC &= ~(1 << 0);
// Wait ~1000ns before read
__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""nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t");
// Leave address pins stable for a little bit
__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t");
// Set data pins to input
adIn_N64();
// Wait ~600ns just to be sure address is set
__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");
}
// Read one word out of the cartridge
@ -393,21 +402,15 @@ word readWord_N64() {
// Pull read(PH6) low
PORTH &= ~(1 << 6);
// Wait ~100ns
__asm__("nop\n\t""nop\n\t");
// Wait ~300ns
__asm__("nop\n\t""nop\n\t""nop\n\t""nop\n\t""nop\n\t");
// Join bytes from PINF and PINK into a word
word tempWord = ( ( PINK & 0xFF ) << 8 ) | ( PINF & 0xFF );
// Wait ~200ns
__asm__("nop\n\t""nop\n\t""nop\n\t");
// Pull read(PH6) high
PORTH |= (1 << 6);
// Wait ~60ns
__asm__("nop\n\t");
return tempWord;
}