Waveshare ESP32-S3-Touch-LCD-3.5

[Chris-Rowland]

I'm trying to get this display working and can compile and upload the 08_GFX_HelloWorld example using the Arduino IDE 2.3.8 but the display remains blank.
I'm using the ESP32 by Expressif Systems board manager and selected the ESP32S3 Dev Module board.
The GFX Library for Arduino 1.6.5 and TCA9554 0.1.3.
I've set the pins and drivers as follows:

#define GFX_BL 6  // default backlight pin, you may replace DF_GFX_BL to actual backlight pin

// MISO originally 2, change has no effect
#define SPI_MISO -1
#define SPI_MOSI 1
#define SPI_SCLK 5

#define LCD_CS -1
#define LCD_DC 3
#define LCD_RST -1
#define LCD_HOR_RES 320
#define LCD_VER_RES 480

#define I2C_SDA 8
#define I2C_SCL 7

TCA9554 TCA(0x20);

Arduino_DataBus* bus = new Arduino_ESP32SPI(LCD_DC /* DC */, LCD_CS /* CS */, SPI_SCLK /* SCK */, SPI_MOSI /* MOSI */, SPI_MISO /* MISO */);
Arduino_GFX* gfx = new Arduino_ST7796(
  bus, LCD_RST /* RST */, 0 /* rotation */, true, LCD_HOR_RES, LCD_VER_RES);

The code compiles and runs, I've added some Serial.print breadcrumbs but the display remains blank.
The pin definitions are from the waveshare wiki.

Any suggestions for how to get this working please. The pin definitions are from the Waveshare data, could the bus or gfx objects be set incorrectly? Not sure what to try next. All these Waveshare devices seem to be slightly different so not sure how much can be gained from data from similar devices.

Thanks,
Chris

[Chris-Rowland]

I've got this going. Waveshare suggested reverting to an earlier version of the GFX library. That gave me SPI errors with version 3.3.7 of the ESP32 board manager so I also reverted that to 3.2.0 and it worked.
I expect there will be a lot more juggling library versions to come but at least it's going and this may be useful to other people with the same problem.
Chris

The compilation errors were:

c:\Users\chris\Documents\Arduino\libraries\GFX_Library_for_Arduino\src\databus\Arduino_ESP32SPI.cpp: In function 'void _on_apb_change(void*, apb_change_ev_t, uint32_t, uint32_t)':
c:\Users\chris\Documents\Arduino\libraries\GFX_Library_for_Arduino\src\databus\Arduino_ESP32SPI.cpp:130:59: error: invalid conversion from 'long unsigned int' to 'spi_t*' {aka 'spi_struct_t*'} [-fpermissive]
  130 |     _spi->dev->clock.val = spiFrequencyToClockDiv(old_apb / ((_spi->dev->clock.clkdiv_pre + 1) * (_spi->dev->clock.clkcnt_n + 1)));
      |                                                   ~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      |                                                           |
      |                                                           long unsigned int
c:\Users\chris\Documents\Arduino\libraries\GFX_Library_for_Arduino\src\databus\Arduino_ESP32SPI.cpp:130:50: error: too few arguments to function 'uint32_t spiFrequencyToClockDiv(spi_t*, uint32_t)'
  130 |     _spi->dev->clock.val = spiFrequencyToClockDiv(old_apb / ((_spi->dev->clock.clkdiv_pre + 1) * (_spi->dev->clock.clkcnt_n + 1)));
      |                            ~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
In file included from C:\Users\chris\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.3.7\cores\esp32/esp32-hal.h:94,
                 from C:\Users\chris\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.3.7\cores\esp32/Arduino.h:44,
                 from c:\Users\chris\Documents\Arduino\libraries\GFX_Library_for_Arduino\src/Arduino_DataBus.h:8,
                 from c:\Users\chris\Documents\Arduino\libraries\GFX_Library_for_Arduino\src\databus\Arduino_ESP32SPI.h:3,
                 from c:\Users\chris\Documents\Arduino\libraries\GFX_Library_for_Arduino\src\databus\Arduino_ESP32SPI.cpp:5:
C:\Users\chris\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.3.7\cores\esp32/esp32-hal-spi.h:143:10: note: declared here
  143 | uint32_t spiFrequencyToClockDiv(spi_t *spi, uint32_t freq);
      |          ^~~~~~~~~~~~~~~~~~~~~~
c:\Users\chris\Documents\Arduino\libraries\GFX_Library_for_Arduino\src\databus\Arduino_ESP32SPI.cpp: In member function 'virtual bool Arduino_ESP32SPI::begin(int32_t, int8_t)':
c:\Users\chris\Documents\Arduino\libraries\GFX_Library_for_Arduino\src\databus\Arduino_ESP32SPI.cpp:177:35: error: invalid conversion from 'int32_t' {aka 'long int'} to 'spi_t*' {aka 'spi_struct_t*'} [-fpermissive]
  177 |     _div = spiFrequencyToClockDiv(_speed);
      |                                   ^~~~~~
      |                                   |
      |                                   int32_t {aka long int}
c:\Users\chris\Documents\Arduino\libraries\GFX_Library_for_Arduino\src\databus\Arduino_ESP32SPI.cpp:177:34: error: too few arguments to function 'uint32_t spiFrequencyToClockDiv(spi_t*, uint32_t)'
  177 |     _div = spiFrequencyToClockDiv(_speed);
      |            ~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~
C:\Users\chris\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.3.7\cores\esp32/esp32-hal-spi.h:143:10: note: declared here
  143 | uint32_t spiFrequencyToClockDiv(spi_t *spi, uint32_t freq);
      |          ^~~~~~~~~~~~~~~~~~~~~~
c:\Users\chris\Documents\Arduino\libraries\GFX_Library_for_Arduino\src\databus\Arduino_ESP32SPIDMA.cpp: In member function 'virtual bool Arduino_ESP32SPIDMA::begin(int32_t, int8_t)':
c:\Users\chris\Documents\Arduino\libraries\GFX_Library_for_Arduino\src\databus\Arduino_ESP32SPIDMA.cpp:63:35: error: invalid conversion from 'int32_t' {aka 'long int'} to 'spi_t*' {aka 'spi_struct_t*'} [-fpermissive]
   63 |     _div = spiFrequencyToClockDiv(_speed);
      |                                   ^~~~~~
      |                                   |
      |                                   int32_t {aka long int}
c:\Users\chris\Documents\Arduino\libraries\GFX_Library_for_Arduino\src\databus\Arduino_ESP32SPIDMA.cpp:63:34: error: too few arguments to function 'uint32_t spiFrequencyToClockDiv(spi_t*, uint32_t)'
   63 |     _div = spiFrequencyToClockDiv(_speed);
      |            ~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~
In file included from C:\Users\chris\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.3.7\cores\esp32/esp32-hal.h:94,
                 from C:\Users\chris\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.3.7\cores\esp32/Arduino.h:44,
                 from c:\Users\chris\Documents\Arduino\libraries\GFX_Library_for_Arduino\src/Arduino_DataBus.h:8,
                 from c:\Users\chris\Documents\Arduino\libraries\GFX_Library_for_Arduino\src\databus\Arduino_ESP32SPIDMA.h:3,
                 from c:\Users\chris\Documents\Arduino\libraries\GFX_Library_for_Arduino\src\databus\Arduino_ESP32SPIDMA.cpp:1:
C:\Users\chris\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.3.7\cores\esp32/esp32-hal-spi.h:143:10: note: declared here
  143 | uint32_t spiFrequencyToClockDiv(spi_t *spi, uint32_t freq);
      |          ^~~~~~~~~~~~~~~~~~~~~~
exit status 1

Compilation error: exit status 1