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V18A: Added delay to SNES write
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@ -3,7 +3,7 @@
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Author: sanni
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Date: 2016-08-25
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Version: V18
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Version: V18A
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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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@ -31,7 +31,7 @@
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Pickle - SDD1 fix
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**********************************************************************************/
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char ver[5] = "V18";
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char ver[5] = "V18A";
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/******************************************
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Define Output
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@ -117,7 +117,7 @@ void NPGameMenu() {
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print_Msg(F("Game "));
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print_Msg(gameSubMenu + 0x81, HEX);
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println_Msg(F(" Timeout"));
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println_Msg(readBank_SNES(0, 0x2400));
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println_Msg(readBank_SNES(0, 0x2400), HEX);
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println_Msg(F(""));
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print_Error(F("Please powercycle NP cart"), true);
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}
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@ -1321,46 +1321,36 @@ byte send_NP(byte command) {
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// Switch to write
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dataOut();
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controlOut_SNES();
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__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");
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// Write command
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writeBank_SNES(0, 0x2400, 0x09);
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__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");
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// Switch to read
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dataIn();
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controlIn_SNES();
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__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");
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// Read status
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NPReady = readBank_SNES(0, 0x2400);
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// Switch to write
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dataOut();
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controlOut_SNES();
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__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");
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writeBank_SNES(0, 0x2401, 0x28);
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__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");
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writeBank_SNES(0, 0x2401, 0x84);
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__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");
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// NP_CMD_06h, send this only if above read has returned 7Dh, not if it's already returning 2Ah
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if (NPReady == 0x7D) {
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writeBank_SNES(0, 0x2400, 0x06);
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__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");
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writeBank_SNES(0, 0x2400, 0x39);
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__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");
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}
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// Write the command
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writeBank_SNES(0, 0x2400, command);
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__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");
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// Switch to read
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dataIn();
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controlIn_SNES();
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__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");
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// Read status
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NPReady = readBank_SNES(0, 0x2400);
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@ -295,13 +295,13 @@ void writeBank_SNES(byte myBank, word myAddress, byte myData) {
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PORTH &= ~(1 << 5);
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// Leave WR low for at least 60ns
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__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");
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__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");
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// Switch WR(PH5) to HIGH
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PORTH |= (1 << 5);
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// Leave WR high for at least 50ns
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__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");
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__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");
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}
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// Read one byte of data from a location specified by bank and address, 00:0000
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@ -964,8 +964,6 @@ void writeSRAM (boolean browseFile) {
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myFile.read(sdBuffer, 512);
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for (unsigned long c = 0; c < 512; c++) {
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writeBank_SNES(0, currByte + c, sdBuffer[c]);
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// Wait a little to prevent 1 byte write error
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__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");
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}
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}
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}
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