125 lines
3.6 KiB
C++
125 lines
3.6 KiB
C++
/* *****************************************************************************
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* FX chip test example v1.0 by Mr.Blinky Sep 2023 licenced under CC0
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* *****************************************************************************
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*
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* This test program can be used for testing and troubleshooting the external
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* flash memory (FX) chip.
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*
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* It will show which chip select configuration is selected for compiling and
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* it reads out the FX chips JEDEC ID and status register information. It also
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* checks if the FX chip is loaded with a flash image file.
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*
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* Pressing the A-button will reset the status registers and disable any write
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* protected areas of the FX chip (unless the status register itself is protected)
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*
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******************************************************************************/
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#include <Arduboy2.h> // required to build for Arduboy
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#include <ArduboyFX.h> // required to access the FX external flash
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Arduboy2 arduboy;
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void setup() {
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arduboy.begin(); // normal initialisation with Arduboy startup logo
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FX::begin(0); // initialise FX chip
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}
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JedecID jedecID;
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void printHexByte(uint8_t b)
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{
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if (b <16) arduboy.print(0);
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arduboy.print(b,HEX);
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}
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void printStatusReg(uint8_t cmd)
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{
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FX::enable();
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FX::writeByte(cmd);
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printHexByte(FX::readByte());
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FX::disable();
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}
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void loop() {
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if (!arduboy.nextFrame()) return; // Do nothing until it's time for the next frame
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arduboy.pollButtons(); // required for arduboy.justPressed
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// Show which chip select this sketch is compiled for.
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#if defined(CART_CS_RX)
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arduboy.setCursor(7,0);
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arduboy.print(F("Chip select: PD2/RX"));
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#elif defined(CART_CS_HWB)
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arduboy.setCursor(4,0);
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arduboy.print(F("Chip select: PE2/HWB"));
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#else
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arduboy.setCursor(4,0);
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arduboy.print(F("Chip select: PD1/SDA"));
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#endif
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// Show JEDEC ID
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FX::enable();
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FX::writeByte(SFC_JEDEC_ID);
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jedecID.manufacturer = FX::readByte();
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jedecID.device = FX::readByte();
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jedecID.size = FX::readByte();
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FX::disable();
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arduboy.setCursor(16,12);
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arduboy.print(F("JEDEC ID: "));
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printHexByte(jedecID.manufacturer);
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printHexByte(jedecID.device );
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printHexByte(jedecID.size);
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// Show flash status register
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arduboy.setCursor(22,24);
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arduboy.print(F("Status: "));
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if (jedecID.size == 0x18) printStatusReg(SFC_READSTATUS3);
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printStatusReg(SFC_READSTATUS2);
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printStatusReg(SFC_READSTATUS1);
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// Show state of the the flash chips image
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uint8_t cartSignature[7];
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arduboy.setCursor(0,36);
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arduboy.print(F("State: "));
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FX::readDataBytes(0, cartSignature,sizeof(cartSignature));
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if (strncmp(cartSignature,"ARDUBOY",sizeof(cartSignature)))
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{
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arduboy.print(F("No image loaded"));
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}
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else
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{
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arduboy.print(F("Image loaded"));
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}
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arduboy.setCursor(13,48);
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arduboy.print(F("Press A-button to"));
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arduboy.setCursor(1,56);
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arduboy.print(F("reset Status register"));
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if (arduboy.justPressed(A_BUTTON))
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{
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FX::writeEnable();
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FX::enable();
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FX::writeByte(0x01);
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FX::writeByte(0);
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if (jedecID.size != 0x18) FX::writeByte(0);
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FX::disable();
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if (jedecID.size == 0x18)
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{
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FX::writeEnable();
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FX::enable();
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FX::writeByte(0x31);
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FX::writeByte(0);
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FX::disable();
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FX::writeEnable();
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FX::enable();
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FX::writeByte(0x11);
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FX::writeByte(0);
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FX::disable();
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}
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}
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FX::display(CLEAR_BUFFER); // Using CLEAR_BUFFER will clear the display buffer after it is displayed
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}
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