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Bodmer / TFT_eSPI

Arduino and PlatformIO IDE compatible TFT library optimised for the Raspberry Pi Pico (RP2040), STM32, ESP8266 and ESP32 that supports different driver chips
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Can't change SPI DC or RST GPIO designations #2047

Closed Bwanna closed 2 years ago

Bwanna commented 2 years ago

(Trying to follow the template. Please let me know if I missed anything.)

  1. ISSUE DESCRIPTION:
    • GPIO designations for DC and RST can not be changed. (using "Read_User_Setup" DC always stays GPIO 0. RST always stays GPIO 2. Regardless of placing #define statements in sketch or User_Setup.h
  2. IDE Arduino v2.0.0
  3. TFT_eSPI library version 2.4.76
  4. Board package version (don't know how to find this info - get from espressif)
  5. ESP32 DevKitC
  6. TFT driver ST7789
  7. Interface type SPI

User_Setup.h

// ###### EDIT THE PIN NUMBERS IN THE LINES FOLLOWING TO SUIT YOUR ESP32 SETUP   ######

// For ESP32 Dev board (only tested with ILI9341 display)
// The hardware SPI can be mapped to any pins

#define TFT_MISO 19
#define TFT_MOSI 23
#define TFT_SCLK 18
#define TFT_CS   15   
#define TFT_DC    2     <<<<<
#define TFT_RST   4     <<<<<

Read_User_Setup.h OUTPUT

TFT_eSPI ver = 2.4.72
Processor    = ESP32
Frequency    = 240MHz
Transactions = Yes
Interface    = SPI
Display driver = 7789
Display width  = 240
Display height = 320

MOSI    = GPIO 23
MISO    = GPIO 19
SCK     = GPIO 18
TFT_CS   = GPIO 15
TFT_DC   = GPIO 0     <<<<<
TFT_RST  = GPIO 2     <<<<<

Font GLCD   loaded
Font 2      loaded
Font 4      loaded
Font 6      loaded
Font 7      loaded
Font 8      loaded
Smooth font enabled

Display SPI frequency = 27.00

NOTE Display works correctly same pin assignments with https://github.com/adafruit/Adafruit-ST7735-Library.

Bodmer commented 2 years ago

Check DC and RST pins are not being defined elsewhere and that the correct setup file is being included.

Bwanna commented 2 years ago

Here's what I've done, still not working:

Have tested with a few different ESP dev modules - no luck.
Again - hardware works fine using any other ST7789 library with the same configurations. Need to get TFT_eSPI working so it will interface with GUISlice software.

ANY ideas would be appreciated.

Bwanna commented 2 years ago

RESOLVED

Had to insert into Setup18_ST7789.h the pin defines from the User_Setup.h file. Don't understand why the same pin defines wouldn't work when placed in the Sketch or the User_Setup.h file?

Bodmer commented 2 years ago

It sounds like 2 setup files are being called up. The User_Setup_Select.h file should only have one line uncommented.