ESP32 S3 cannot use this library file,could you tell me where the problem is

[andylu321123]

sir,

Thank you very much for your contribution.

I have two ESP32 development boards，esp-wroom-32 and esp32 s3. esp-wroom-32 can be used very well.
but esp32 S3 , I can't use it. I confirm I need modify SPI pin definitions for adapt to ESP32S3. but The result was disappointing.

I am trying to redefine the pins,But I failed.

Could you guide me on how to modify the code to adapt to it?

//#define VSPI_MOSI 40
//#define VSPI_SCK 39
//#define SCS 38

or
//#define SS 42
//#define MOSI 35
//#define SCK 36

bye

[techtoys]

ESP32S3 uses GPIO matrix for its peripherals including SPI. That means you may assign any pin to SPI.
You may try this:

1. Locate MemoryLCD.cpp file
2. Search hal_bsp_init(void)
3. There is a line _SPI->begin(). Change it to _SPI->begin(your_sclk_pin, -1, your_mosi_pin, -1).
   The second -1 indicates miso which is not required for memory LCD. The last -1 is the CS pin which we are using manual GPIO toggle. That pin is not needed either.
   Don't forget your_sclk_pin & your_mosi_pin must be output pins.

Recompile and see...

Hope it helps.

[andylu321123]

thanks for your help, I had success

[vv96ll]

Hello, can you share how you used the esp32s3 to light up this screen?

[techtoys]

Honestly, I have never tried ESP32S3. I did it with ESP32 and Arduino M0 only. I believe ESP32S3 is similar. There was an issue and solved reported by andylu321123 . Maybe Andy will help.

[vv96ll]

Thank you for your reply. According to the above operation, the display is not normal. I can only hope that andylu321123 can reply

[andylu321123]

FirstPixel.zip


I hope this documet help you.

[andylu321123]

[andylu321123]

Just connet sclk si scs. disp and extcomin not need connect .

[vv96ll]

Thank you very much for your reply. At first, I thought it was the problem of the pin. I have tried many times, but now the picture is still not normal, Thanks again for your reply.

[andylu321123]

I dont know the reason. Sorry ,but I think the style is not same.

[andylu321123]

you can try to run this word.
GFXDisplayPutPixel(10, 10, BLACK);
then to find how to display,what happed on the screen. then .....
maybe you need modify something for display.
I just help you do this. I am not Professionally.

[vv96ll]

Yes, there is A difference, my hand is LS027B7DH01A, the normal is not with the suffix A,thanks for your reply.

[andylu321123]

If you may drive LS027B7DH01A nomally,Please let me know,I want to learn it also.

[vv96ll]

GFXDisplayPutPixel(10, 10, BLACK);
this word is valid. be shown in about(11, 10).

I wish I could drive LS027B7DH01A nomally.

[andylu321123]

Try different points, Find patterns, then modify "void GFXDisplayPutPixel(uint16_t x, uint16_t y, COLOR color)" and so on. Good luck!!!