ESP32-S3 Reverse TFT Feather support

[Cyborg-Squirrel]

The ESP32 TFT Feather is supported by NightDriver but the reverse variant is not.

NightDriver seems to be having issues initializing the TFT screen.

Logs

There are a few changes I made in my local copy (see below).

Reconnecting to /dev/cu.usbmodem2101 .....       Connected!
(W) (DeviceConfig)(C1) DeviceConfig could not be loaded from JSON, using defaults
(W) (NotifyJSONWriterThread)(C1) >> Notifying JSON Writer Thread
(W) (setup)(C1) Creating TFT Screen
(W) (TFTScreen)(C1) TFT begin
Disconnected (read failed: [Errno 6] Device not configured)

Config changes

I made changes to platformio.ini to try to get it working.

[dev_adafruit_feather_reverse]
extends         = dev_adafruit_feather
board           = adafruit_feather_esp32s3_reversetft

[env:ledstrip_feather]
extends         = dev_adafruit_feather_reverse
build_flags     = -DLEDSTRIP=1
                  -DUSE_SCREEN=1
                  -DUSE_TFTSPI=1
                  -DUSER_SETUP_LOADED
                  -DTOUCH_CS=0
                  -DST7789_2_DRIVER
                  -DTFT_WIDTH=240                   ; Define the TFT screen setup
                  -DTFT_HEIGHT=135
                  -DTFT_BL=45
                  -DTFT_BACKLIGHT_ON=HIGH
                  -DTFT_RGB_ORDER=TFT_RGB           ; Fix color order being swapped
                  -DTFT_CS=42                       ; CS, DC, RST
                  -DTFT_DC=40
                  -DTFT_RST=41
                  -DTFT_MOSI=35                     ; MOSI, MISO, CLK
                  -DTFT_MISO=37
                  -DTFT_SCLK=36
                  -DLOAD_GLCD=1                     ; Font info
                  -DSPI_FREQUENCY=27000000
                  -DESP32FEATHERTFT=1               ; This board has a TFT that is supported by TFT_eSPI
                  -DNUM_INFO_PAGES=1
                  ${psram_flags.build_flags}
                  ${unity_double_flags.build_flags}
                  ${dev_adafruit_feather_reverse.build_flags}

Code changes

I added logging to the TFTScreen constructor. The begin() call seems to be the issue.

TFTScreen(int w, int h) : Screen(w, h)
        {
            debugW("TFT begin");
            tft.begin();

            #ifdef TFT_BL
                debugW("Setting up TFT backlight...");
                pinMode(TFT_BL, OUTPUT);                // REVIEW begin() might do this for us
                digitalWrite(TFT_BL, 128);
            #endif

            debugW("Setting TFT parameters");
            tft.setRotation(3);
            tft.fillScreen(TFT_GREEN);
            tft.setTextDatum(L_BASELINE);
        }

[rbergen]

Converted issue to a Q&A discussion because support for the reverse variant of the TFT Feather has never been claimed by this project.