[Solved]blue pill and ILI9341 tft

[svod616]

Yes it really works! library

https://github.com/adafruit/Adafruit_ILI9341

came up beautifully, thank you very much!
I used the following initialization command:

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Adafruit_ILI9341 tft = Adafruit_ILI9341(PA4,PB1,PA7,PA5,PB10,PA6);

and it worked, the connection is as follows:

TFT_CS - PA4, TFT_DC - PB1, TFT_MOSI - PA7, TFT_CLK - PA5, TFT_RST - PB10, TFT_MISO - PA6

but I have one more question: Could you point me to the documentation for this library with a list of commands and arguments for them?
and there is still a question on increasing FPS: is this possible?

[ag123]

run the examples

[stas2z]

and there is still a question on increasing FPS: is this possible?

by using constructor for hardware spi
Adafruit_ILI9341(int8_t _CS, int8_t _DC, int8_t _RST = -1);

now you are using software bitbanging

[svod616]

and there is still a question on increasing FPS: is this possible?

by using constructor for hardware spi
Adafruit_ILI9341(int8_t _CS, int8_t _DC, int8_t _RST = -1);

Thank you, this really doubled the FPS.
After mega8 looks impressive.

[svod616]

run the examples

yes, I ran an example. I was able to easily replace the displayed text, its color and position in the example. However, when I try to modify the code called in the example like this

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Serial.println(testLines(ILI9341_CYAN));

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unsigned long testLines(uint16_t color) {
  unsigned long start, t;
  int           x1, y1, x2, y2,
                w = tft.width(),
                h = tft.height();

  tft.fillScreen(ILI9341_BLACK);
  yield();
  
  x1 = y1 = 0;
  y2    = h - 1;
  start = micros();
  for(x2=0; x2<w; x2+=6) tft.drawLine(x1, y1, x2, y2, color);
  x2    = w - 1;
  for(y2=0; y2<h; y2+=6) tft.drawLine(x1, y1, x2, y2, color);
  t     = micros() - start; // fillScreen doesn't count against timing

  yield();
  tft.fillScreen(ILI9341_BLACK);
  yield();

  x1    = w - 1;
  y1    = 0;
  y2    = h - 1;
  start = micros();
  for(x2=0; x2<w; x2+=6) tft.drawLine(x1, y1, x2, y2, color);
  x2    = 0;
  for(y2=0; y2<h; y2+=6) tft.drawLine(x1, y1, x2, y2, color);
  t    += micros() - start;

  yield();
  tft.fillScreen(ILI9341_BLACK);
  yield();

  x1    = 0;
  y1    = h - 1;
  y2    = 0;
  start = micros();
  for(x2=0; x2<w; x2+=6) tft.drawLine(x1, y1, x2, y2, color);
  x2    = w - 1;
  for(y2=0; y2<h; y2+=6) tft.drawLine(x1, y1, x2, y2, color);
  t    += micros() - start;

  yield();
  tft.fillScreen(ILI9341_BLACK);
  yield();

  x1    = w - 1;
  y1    = h - 1;
  y2    = 0;
  start = micros();
  for(x2=0; x2<w; x2+=6) tft.drawLine(x1, y1, x2, y2, color);
  x2    = 0;
  for(y2=0; y2<h; y2+=6) tft.drawLine(x1, y1, x2, y2, color);

  yield();
  return micros() - start;
}

To get started, I wanted to change the calculation of coordinates here. But when you try to change at least something related to tft.drawLine () in this code, the compiler gives a lot of errors.
(there was a power failure, so I lost this part of the code. I will continue today, so I will quickly give an example of my code modification and copy the compiler errors)
maybe there is some kind of documentation like this: https://github.com/dgolda/UTFT/blob/master/UTFT.pdf

[Kenjutsu]

by using constructor for hardware spi
Adafruit_ILI9341(int8_t _CS, int8_t _DC, int8_t _RST = -1);

Thank you for this, and just to confirm that I could only get hardware SPI working using the three parameter constructor with RST specified, and not the two parameter constructor with only CS and DC.