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prenticedavid
2017-09-20 22:19:24 +01:00
parent 014940bae8
commit efa9eb18bf
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examples/diagnose_TFT_support/diagnose_TFT_support.ino Normal file
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#include <MCUFRIEND_kbv.h>
MCUFRIEND_kbv tft;
// Assign human-readable names to some common 16-bit color values:
#define BLACK 0x0000
#define BLUE 0x001F
#define RED 0xF800
#define GREEN 0x07E0
#define CYAN 0x07FF
#define MAGENTA 0xF81F
#define YELLOW 0xFFE0
#define WHITE 0xFFFF
#define GRAY 0x8410
void setup()
{
Serial.begin(9600);
if (!Serial) delay(5000); //allow some time for Leonardo
uint16_t ID = tft.readID(); //
Serial.println("Diagnose whether this controller is supported");
Serial.println("There are FAQs in extras/mcufriend_how_to.txt");
Serial.println("");
Serial.print("tft.readID() finds: ID = 0x");
Serial.println(ID, HEX);
Serial.println("");
if (ID == 0x0404) {
Serial.println("Probably a write-only Mega2560 Shield");
Serial.println("#define USE_SPECIAL in mcufriend_shield.h");
Serial.println("#define appropriate SPECIAL in mcufriend_special.h");
Serial.println("e.g. USE_MEGA_16BIT_SHIELD");
Serial.println("e.g. USE_MEGA_8BIT_SHIELD");
Serial.println("Hint. A Mega2560 Shield has a 18x2 male header");
Serial.println("Often a row of resistor-packs near the 18x2");
Serial.println("RP1-RP7 implies 16-bit but it might be 8-bit");
Serial.println("RP1-RP4 or RP1-RP5 can only be 8-bit");
}
if (ID == 0xD3D3) {
uint16_t guess_ID = 0x9481; // write-only shield
Serial.println("Probably a write-only Mega2560 Shield");
Serial.print("Try to force ID = 0x");
Serial.println(guess_ID, HEX);
tft.begin(guess_ID);
}
else tft.begin(ID);
Serial.println("");
if (tft.width() == 0) {
Serial.println("This ID is not supported");
Serial.println("look up ID in extras/mcufriend_how_to.txt");
Serial.println("you may need to edit MCUFRIEND_kbv.cpp");
Serial.println("to enable support for this ID");
Serial.println("e.g. #define SUPPORT_8347D");
Serial.println("");
Serial.println("New controllers appear on Ebay often");
Serial.println("If your ID is not supported");
Serial.println("run LCD_ID_readreg.ino from examples/");
Serial.println("Copy-Paste the output from the Serial Terminal");
Serial.println("to a message in Displays topic on Arduino Forum");
Serial.println("or to Issues on GitHub");
while (1); //just die
} else {
Serial.print("PORTRAIT is ");
Serial.print(tft.width());
Serial.print(" x ");
Serial.println(tft.height());
Serial.println("");
Serial.println("Run the examples/graphictest_kbv sketch");
Serial.println("All colours, text, directions, rotations, scrolls");
Serial.println("should work. If there is a problem, make notes on paper");
Serial.println("Post accurate description of problem to Forum");
Serial.println("Or post a link to a video (or photos)");
Serial.println("");
Serial.println("I rely on good information from remote users");
}
}
void loop()
{
static uint8_t aspect = 0;
const char *aspectname[] = {
"PORTRAIT", "LANDSCAPE", "PORTRAIT_REV", "LANDSCAPE_REV"
};
const char *colorname[] = { "BLUE", "GREEN", "RED", "GRAY" };
uint16_t colormask[] = { BLUE, GREEN, RED, GRAY };
uint16_t ID = tft.readID(); //
tft.setRotation(aspect);
int width = tft.width();
int height = tft.height();
tft.fillScreen(colormask[aspect]);
tft.drawRect(0, 0, width, height, WHITE);
tft.drawRect(32, 32, width - 64, height - 64, WHITE);
tft.setTextSize(2);
tft.setTextColor(BLACK);
tft.setCursor(40, 40);
tft.print("ID=0x");
tft.print(ID, HEX);
if (ID == 0xD3D3) tft.print(" w/o");
tft.setCursor(40, 70);
tft.print(aspectname[aspect]);
tft.setCursor(40, 100);
tft.print(width);
tft.print(" x ");
tft.print(height);
tft.setTextColor(WHITE);
tft.setCursor(40, 130);
tft.print(colorname[aspect]);
if (++aspect > 3) aspect = 0;
delay(5000);
}