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Merge pull request #228 from PsyK0p4T/master

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NGP.ino Update
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sanni 2021-08-19 21:17:04 +02:00 committed by GitHub
commit 7fef6d45b6
1 changed files with 20 additions and 54 deletions
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72
Cart_Reader/NGP.ino
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@ -9,10 +9,10 @@ static const char ngpMenuItem1[] PROGMEM = "Read Rom";
static const char ngpMenuItemReset[] PROGMEM = "Reset";
static const char* const menuOptionsNGP[] PROGMEM = {ngpMenuItem1, ngpMenuItemReset};
static const char ngpRomItem1[] PROGMEM = "4 Mbits";
static const char ngpRomItem2[] PROGMEM = "8 Mbits";
static const char ngpRomItem3[] PROGMEM = "16 Mbits";
static const char ngpRomItem4[] PROGMEM = "32 Mbits";
static const char ngpRomItem1[] PROGMEM = "4 Mbits / 512 KB";
static const char ngpRomItem2[] PROGMEM = "8 Mbits / 1 MB";
static const char ngpRomItem3[] PROGMEM = "16 Mbits / 2 MB";
static const char ngpRomItem4[] PROGMEM = "32 Mbits / 4 MB";
static const char* const ngpRomOptions[] PROGMEM = {ngpRomItem1, ngpRomItem2, ngpRomItem3, ngpRomItem4};
char ngpRomVersion[3];
@ -42,18 +42,13 @@ void setup_NGP() {
PORTH |= ((1 << 0) | (1 << 3) | (1 << 4) | (1 << 5) | (1 << 6));
println_Msg(F("Initializing..."));
display_Update();
if (getCartInfo_NGP())
printCartInfo_NGP();
else {
println_Msg(F("NeoGeo Pocket"));
println_Msg(F(""));
println_Msg(F(""));
println_Msg(F("Cartridge read error"));
println_Msg(F(""));
println_Msg(F("Press Button..."));
display_Update();
wait();
}
else
print_Error(F("Cartridge read error"), true);
}
void ngpMenu() {
@ -99,49 +94,23 @@ bool getCartInfo_NGP() {
*(tmp + 0) = deviceID;
*(tmp + 1) = manufacturerID;
// select rom size depending of the chip IDs
switch (romSize) {
// detection error
case 0xffff:
return false;
break;
// 4 Mbits
case 0x98ab:
cartSize = 524288;
break;
// Toshiba ?
case 0x204c:
cartSize = 524288;
break;
// 8 Mbits
// Toshiba
case 0x982c:
cartSize = 1048576;
break;
// Samsung
case 0xec2c:
cartSize = 1048576;
break;
// 16 Mbits
// Toshiba
case 0x982f:
cartSize = 2097152;
break;
// Samsung
case 0xec2f:
cartSize = 2097152;
break;
case 0x98ab: cartSize = 524288; break; // 4 Mbits Toshiba
case 0x204c: cartSize = 524288; break; // 4 Mbits STMicroelectronics ?
case 0x982c: cartSize = 1048576; break; // 8 Mbits Toshiba
case 0xec2c: cartSize = 1048576; break; // 8 Mbits Samsung
case 0x982f: cartSize = 2097152; break; // 16 Mbits Toshiba
case 0xec2f: cartSize = 2097152; break; // 16 Mbits Samsung
case 0xffff: return false; break; // detection error (no cart inserted or hw problem)
}
// reset to read mode
dataOut();
writeByte_NGP(0x0, 0xf0);
dataIn();
// confirm NGP cart recognition
dataIn();
for (uint32_t addr = 0; addr < 28; addr++)
sdBuffer[addr] = readByte_NGP(addr);
if (memcmp_P(sdBuffer, PSTR("COPYRIGHT BY SNK CORPORATION"), 28) != 0 && memcmp_P(sdBuffer, PSTR(" LICENSED BY SNK CORPORATION"), 28) != 0)
@ -192,6 +161,7 @@ void printCartInfo_NGP() {
print_Msg(F("Rom Size: "));
if (cartSize == 0) {
println_Msg(F("Unknown"));
// display the chip IDs if unknown
print_Msg(F("Chip ID: "));
println_Msg(String(manufacturerID,HEX) + " " + String(deviceID,HEX));
}
@ -217,22 +187,18 @@ void readROM_NGP(char *outPathBuf, size_t bufferSize) {
// wait for user choice to come back from the question box menu
switch (ngpRomMenu) {
case 0:
// 4 Mbits
cartSize = 524288;
break;
case 1:
// 8 Mbits
cartSize = 1048576;
break;
case 2:
// 16 Mbits
cartSize = 2097152;
break;
case 3:
// 32 Mbits
cartSize = 4194304;
break;
}