conflict with neopixelWrite or GPIO48 on ESP32S3?

[Sisyphos0]

I'm using this great lib already on a multitude of projects with a multitude of TFTs (most on ESP8266 and ESP32). Thanks a lot Bodmer for this great work!

I now switched to ESP32S3 in a project where I'm using the build-in RGB-Led on GPIO 48.
I connected an ILI9341 and everything is working fine.
But after calling tft.init() the neopixelWrite() function isn't working anymore, sketch is not hanging or crashing but the RGB-Led is no more responding to the neopixelWrite() commands... (function still working before calling tft.init())
Already checked in TFT_eSPI.h/.cpp, TFT_config.h, TFT_Drivers,Processors but could not find anything wich is obviously conflicting with neopixel functions or GPIO48.
As the TFT doesn't have a MISO output I tried with TFT_MISO 12, -1 and #undef, -, no changes.

Using:

• ESP32S3 N16R8
• PlatformIO with board def "esp32s3box"
• lib_deps=
  bblanchon/ArduinoJson@^6.21.5
  me-no-dev/ESP Async WebServer@^1.2.3
  sv-zanshin/DS3231M@^1.0.8
  bodmer/TFT_eSPI@^2.5.43
• latest versions of libs and platformIO/board package
• TFT: ILI9341 over SPI (no MISO)
• user-setup:

#define USER_SETUP_ID 995

#define ILI9341_DRIVER

#define TFT_MISO    12  // not connected; also tried -1 and undef
#define TFT_MOSI    11
#define TFT_SCLK    13
#define TFT_CS      10	// Chip select control pin
#define TFT_DC      14	// Data Command control pin

// #define TFT_RST  -1	// TFT_RST is wired to ESP_RST -> leave it commented (for ESP32S3)
// #define TFT_BL   xx	// LED back-light is driven by main prog (TFT_BL should not be -1. comment to disable BL control)

#define LOAD_GLCD   // Font 1. Original Adafruit 8 pixel font needs ~1820 bytes in FLASH
#define LOAD_FONT2  // Font 2. Small 16 pixel high font, needs ~3534 bytes in FLASH, 96 characters
#define LOAD_FONT4  // Font 4. Medium 26 pixel high font, needs ~5848 bytes in FLASH, 96 characters
#define LOAD_FONT6  // Font 6. Large 48 pixel font, needs ~2666 bytes in FLASH, only characters 1234567890:-.apm
#define LOAD_FONT7  // Font 7. 7 segment 48 pixel font, needs ~2438 bytes in FLASH, only characters 1234567890:.
#define LOAD_FONT8  // Font 8. Large 75 pixel font needs ~3256 bytes in FLASH, only characters 1234567890:-.
#define LOAD_GFXFF  // FreeFonts. Include access to the 48 Adafruit_GFX free fonts FF1 to FF48 and custom fonts
#define SMOOTH_FONT
#define SPI_FREQUENCY  20000000
#define SPI_READ_FREQUENCY  20000000

What am I missing? Did anyone had the same problem?

[Bodmer]

This sounds like a resource conflist. I suspect the Neopixel driver is using the SPI resource to drive the serial signal to the LED. Check your Neopixel library requirements. Maybe allocating a different SPI port will fix this?