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https://github.com/sanni/cartreader.git
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Add support for MBC30 flash cart by HDR (thx to ManCloud)
Two issues were resolved: - this flashcart uses the Audio-In pin instead of the WR pin - Writing 4MB gets stuck after bank 170 and needed the SRAM to be mapped (same as MBC5)
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sanni
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5f3983b36c
commit
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@ -10,6 +10,7 @@
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word sramBanks;
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word romBanks;
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word lastByte = 0;
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boolean audioWE = 0;
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/******************************************
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Menu
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@ -32,14 +33,20 @@ static const char GBMenuItem3[] PROGMEM = "Write Save";
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static const char* const menuOptionsGB[] PROGMEM = { GBMenuItem1, GBMenuItem2, GBMenuItem3, string_reset2 };
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// GB Flash items
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static const char GBFlashItem1[] PROGMEM = "29F Cart (MBC3)";
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static const char GBFlashItem2[] PROGMEM = "29F Cart (MBC5)";
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static const char GBFlashItem3[] PROGMEM = "29F Cart (CAM)";
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static const char GBFlashItem4[] PROGMEM = "CFI Cart";
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static const char GBFlashItem5[] PROGMEM = "CFI Cart and Save";
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static const char GBFlashItem6[] PROGMEM = "GB Smart";
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//static const char GBFlashItem7[] PROGMEM = "Reset"; (stored in common strings array)
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static const char* const menuOptionsGBFlash[] PROGMEM = { GBFlashItem1, GBFlashItem2, GBFlashItem3, GBFlashItem4, GBFlashItem5, GBFlashItem6, string_reset2 };
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static const char GBFlashItem1[] PROGMEM = "29F016/32/33 Cart";
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static const char GBFlashItem2[] PROGMEM = "CFI Cart";
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static const char GBFlashItem3[] PROGMEM = "CFI Cart and Save";
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static const char GBFlashItem4[] PROGMEM = "GB Smart";
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//static const char GBFlashItem5[] PROGMEM = "Reset"; (stored in common strings array)
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static const char* const menuOptionsGBFlash[] PROGMEM = { GBFlashItem1, GBFlashItem2, GBFlashItem3, GBFlashItem4, string_reset2 };
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// 29F Flash items
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static const char GBFlash29Item1[] PROGMEM = "DIY MBC3 (WR)";
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static const char GBFlash29Item2[] PROGMEM = "DIY MBC5 (WR)";
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static const char GBFlash29Item3[] PROGMEM = "HDR MBC30 (Audio)";
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static const char GBFlash29Item4[] PROGMEM = "HDR GameBoy Cam";
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//static const char GBFlashItem5[] PROGMEM = "Reset"; (stored in common strings array)
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static const char* const menuOptionsGBFlash29[] PROGMEM = { GBFlash29Item1, GBFlash29Item2, GBFlash29Item3, GBFlash29Item4, string_reset2 };
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// Pelican Codebreaker, Brainboy, and Monster Brain Operation Menu
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static const char PelicanRead[] PROGMEM = "Read Device";
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@ -78,14 +85,24 @@ void gbxMenu() {
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break;
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case 2:
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// create submenu with title and 7 options to choose from
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// create submenu with title and 5 options to choose from
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unsigned char gbFlash;
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// Copy menuOptions out of progmem
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convertPgm(menuOptionsGBFlash, 7);
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gbFlash = question_box(F("Select type"), menuOptions, 7, 0);
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convertPgm(menuOptionsGBFlash, 5);
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gbFlash = question_box(F("Select type"), menuOptions, 5, 0);
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// wait for user choice to come back from the question box menu
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switch (gbFlash) {
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case 0:
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//29F Menu
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// create submenu with title and 5 options to choose from
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unsigned char gbFlash29;
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// Copy menuOptions out of progmem
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convertPgm(menuOptionsGBFlash29, 5);
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gbFlash29 = question_box(F("Select MBC"), menuOptions, 5, 0);
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// wait for user choice to come back from the question box menu
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switch (gbFlash29) {
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case 0:
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//Flash MBC3
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display_Clear();
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@ -125,6 +142,32 @@ void gbxMenu() {
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break;
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case 2:
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//Also pulse Audio-In during writes
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display_Clear();
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display_Update();
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setup_GB();
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mode = mode_GB;
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//Setup Audio-In(PH4) as Output
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DDRH |= (1 << 4);
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// Output a high signal on Audio-In(PH4)
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PORTH |= (1 << 4);
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//Tell writeByte_GB function to pulse Audio-In too
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audioWE = 1;
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// Change working dir to root
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sd.chdir("/");
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//MBC5
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writeFlash29F_GB(3, 1);
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// Reset
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// Prints string out of the common strings array either with or without newline
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print_STR(press_button_STR, 1);
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display_Update();
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wait();
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resetArduino();
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break;
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case 3:
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//Flash GB Camera
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display_Clear();
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display_Update();
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@ -168,7 +211,13 @@ void gbxMenu() {
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resetArduino();
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break;
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case 3:
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case 4:
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resetArduino();
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break;
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}
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break;
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case 1:
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// Flash CFI
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display_Clear();
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display_Update();
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@ -196,7 +245,7 @@ void gbxMenu() {
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resetArduino();
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break;
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case 4:
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case 2:
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// Flash CFI and Save
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display_Clear();
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display_Update();
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@ -271,7 +320,7 @@ void gbxMenu() {
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resetArduino();
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break;
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case 5:
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case 3:
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// Flash GB Smart
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display_Clear();
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display_Update();
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@ -279,7 +328,7 @@ void gbxMenu() {
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mode = mode_GB_GBSmart;
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break;
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case 6:
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case 4:
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resetArduino();
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break;
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}
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@ -535,6 +584,11 @@ void setup_GB() {
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// Output a low signal on RST(PH0) to initialize MMC correctly
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PORTH &= ~((1 << 0) | (1 << 1));
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// Set Audio-In(PH4) to Input
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DDRH &= ~(1 << 4);
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// Enable Internal Pullup
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PORTH |= (1 << 4);
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// Set Data Pins (D0-D7) to Input
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DDRC = 0x00;
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// Enable Internal Pullups
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@ -542,7 +596,7 @@ void setup_GB() {
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delay(400);
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// RST(PH0) to H
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// RST(PH0) to HIGH
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PORTH |= (1 << 0);
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// Print start page
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@ -757,6 +811,9 @@ void writeByte_GB(int myAddress, byte myData) {
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"nop\n\t"
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"nop\n\t");
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if (audioWE)
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// Pull Audio-In(PH4) low
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PORTH &= ~(1 << 4);
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// Pull WR(PH5) low
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PORTH &= ~(1 << 5);
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@ -766,8 +823,12 @@ void writeByte_GB(int myAddress, byte myData) {
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"nop\n\t"
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"nop\n\t");
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if (audioWE)
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// Pull Audio-In(PH4) HIGH
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PORTH |= (1 << 4);
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// Pull WR(PH5) 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"
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"nop\n\t"
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@ -2055,6 +2116,9 @@ void writeFlash29F_GB(byte MBC, boolean flashErase) {
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}
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if (MBC == 3) {
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if (audioWE)
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println_Msg(F("Writing flash MBC30 (Audio)"));
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else
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println_Msg(F("Writing flash MBC3"));
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display_Update();
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@ -2073,6 +2137,9 @@ void writeFlash29F_GB(byte MBC, boolean flashErase) {
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// Set ROM bank
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writeByte_GB(0x2100, currBank);
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if (romBanks > 128)
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// Map SRAM Bank to prevent getting stuck at 0x2A8000
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writeByte_GB(0x4000, 0x0);
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if (currBank > 0) {
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currAddr = 0x4000;
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@ -2094,7 +2161,25 @@ void writeFlash29F_GB(byte MBC, boolean flashErase) {
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PORTH &= ~(1 << 6);
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// Busy check
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//byte count = 0;
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while ((PINC & 0x80) != (sdBuffer[currByte] & 0x80)) {
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/*
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// Debug
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count++;
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__asm__("nop\n\t"
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"nop\n\t"
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"nop\n\t"
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"nop\n\t");
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if (count > 250) {
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println_Msg("");
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print_Msg(F("Bank: "));
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print_Msg(currBank);
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print_Msg(F(" Addr: "));
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println_Msg(currAddr + currByte);
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display_Update();
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wait();
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}
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*/
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}
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// Switch OE/RD(PH6) to HIGH
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