jlbrown
September 15, 2024, 12:17am
1
Trying to use a pre v1.1 DevKit with TFT_eSpi graphics library. The FSPI
sonofcy
September 15, 2024, 12:40am
2
I have lost my powers of xray vision and mind reading, so if you could post a hand drawn wiring diagram and code that has been formatted by the IDE (Tools/Autoformat) then ^^^ placed between code tags maybe something will happen.
2 Likes
jlbrown
September 15, 2024, 2:36am
3
Thank you for your response.
FSPICS0-GPIO10 -> CS ( ILI9341 )
Compiles and uploads with no problem but no display. Display power and backlight running from separate supply. Lovyan library works but not when using above pins. So I know the display and leads are ok.
6v6gt
September 15, 2024, 4:43am
4
and the separate power supply shares a common ground with the ESP32?
jlbrown
September 15, 2024, 4:37pm
5
Yes, all grounds tied together.
horace
September 16, 2024, 6:40am
6
I used the Adafruit_ILI9341 library with a ESP32-S3 Devkit 1 and a ILI9341 display
post your code?
srnet
September 16, 2024, 8:48am
7
No problems with the TFT_eSPI, ILI9341 and ESP32S3 Dev kit board here.
Did you make the appropriate changes to the libraries User_Setup.h file ?
jlbrown
September 16, 2024, 9:58pm
8
I'm using User_Setups/Setup70b_ESP32_S3_ILI9342.h configured
jlbrown
September 16, 2024, 10:13pm
9
Hey horace, Yep I've tested with this library using the full pinout
horace
September 17, 2024, 4:48am
11
which technical manual?esp32-spi-default_pins on a ESP32-S3 DevkitC-1 I get
default pins
MOSI: 11
MISO: 13
SCK: 12
SS: 10
SDA: 8
SCL: 9
the pinout I use is
srnet
September 17, 2024, 6:59am
12
MOSI 11
SCK 12
MISO 13
#define ILI9341_DRIVER
#define TFT_CS 40
#define TFT_DC 42
#define TFT_RST 41
#define TFT_SPI_MODE 0
jlbrown
September 18, 2024, 1:30am
13
I found out I'm getting this error. I don't have any idea what to do about it .
Guru Meditation Error: Core 1 panic'ed (StoreProhibited). Exception was unhandled.
Core 1 register dump:
Backtrace: 0x42002c54:0x3fcebfd0 0x42002d29:0x3fcec000 0x42001d01:0x3fcec020 0x4200728a:0x3fcec040 0x4037dc52:0x3fcec060
I faced the same issue and did the following as a temporally workaround. Please give it a try.
Define USE_HSPI_PORT or USE_FSPI_PORT in User_Setup.h.
// The ESP32 has 2 free SPI ports i.e. VSPI and HSPI, the VSPI is the default.
// If the VSPI port is in use and pins are not accessible (e.g. TTGO T-Beam)
// then uncomment the following line:
#define USE_HSPI_PORT // or USE_FSPI_PORT
I think that this is because different SPI definitions in ESP-IDF are used for each variant of the ESP32, but I'm currently investigating the details.
opened 11:56PM - 18 Apr 24 UTC
I'm having issues with my ESP32-S3 module crashing and rebooting on `tft.begin(… )` (or on `tft.init()`). The following output repeats over and over in the monitor:
```
ESP-ROM:esp32s3-20210327
Build:Mar 27 2021
rst:0x1 (POWERON),boot:0x2b (SPI_FAST_FLASH_BOOT)
SPIWP:0xee
mode:DIO, clock div:1
load:0x3fce3808,len:0x4bc
load:0x403c9700,len:0xbd8
load:0x403cc700,len:0x2a0c
entry 0x403c98d0
E (99) esp_core_dump_flash: Core dump data check failed:
Calculated checksum='db82bb1c'
Image checksum='ffffffff'
Guru Meditation Error: Core 1 panic'ed (StoreProhibited). Exception was unhandled.
Core 1 register dump:
PC : 0x4200289b PS : 0x00060a30 A0 : 0x82002928 A1 : 0x3fcebd80
A2 : 0x00000010 A3 : 0x00000000 A4 : 0x60004000 A5 : 0x00000015
A6 : 0x000000ff A7 : 0x00000001 A8 : 0x08000000 A9 : 0x3fcebd50
A10 : 0x3fc952b0 A11 : 0x00000001 A12 : 0xffffffff A13 : 0x00000010
A14 : 0x00000000 A15 : 0x3fc91d98 SAR : 0x00000010 EXCCAUSE: 0x0000001d
EXCVADDR: 0x00000010 LBEG : 0x42004dec LEND : 0x42004e4f LCOUNT : 0x00000003
Backtrace: 0x42002898:0x3fcebd80 0x42002925:0x3fcebdb0 0x42002930:0x3fcebdd0 0x4200184d:0x3fcebdf0 0x420058da:0x3fcebe20
```
Using the [EspExceptionDecoder](https://github.com/me-no-dev/EspExceptionDecoder) to decode the dump (only works in Arduino 1.8.19) with the [ELF file](https://github.com/Bodmer/TFT_eSPI/files/15031350/minimal_tft.ino.elf.zip) from the build gives this:
```
PC: 0x4200289b: TFT_eSPI::writecommand(unsigned char) at C:\Users\stompp\Documents\Arduino\libraries\TFT_eSPI\TFT_eSPI.cpp line 81
EXCVADDR: 0x00000010
Decoding stack results
0x42002898: TFT_eSPI::writecommand(unsigned char) at C:\Users\stompp\Documents\Arduino\libraries\TFT_eSPI\TFT_eSPI.cpp line 81
0x42002925: TFT_eSPI::init(unsigned char) at C:\Users\stompp\Documents\Arduino\libraries\TFT_eSPI\TFT_eSPI.cpp line 692
0x42002930: TFT_eSPI::begin(unsigned char) at C:\Users\stompp\Documents\Arduino\libraries\TFT_eSPI\TFT_eSPI.cpp line 603
0x4200184d: setup() at C:\DEV\ESP32\minimal_tft/minimal_tft.ino line 7
0x420058da: loopTask(void*) at C:\Users\stompp\AppData\Local\Arduino15\packages\esp32\hardware\esp32\2.0.15\cores\esp32\main.cpp line 42
```
I've minimized the code to the following:
```C
#include <SPI.h>
#include <TFT_eSPI.h>
TFT_eSPI tft = TFT_eSPI();
void setup() {
Serial.begin(115200);
tft.begin();
}
void loop() {
}
```
My setup is the following:
IDE: Arduino 1.8.19 & 2.3.2
TFT_eSPI version: 2.5.43
Board package version: [2.0.15](https://github.com/espressif/arduino-esp32/releases/download/2.0.15/esp32-2.0.15.zip)
Processor: [ESP32-S3](https://github.com/Freenove/Freenove_ESP32_S3_WROOM_Board)
TFT driver: [GC9A01](https://www.waveshare.com/wiki/1.28inch_LCD_Module?amazon)
Interface: SPI
The [setup file](https://github.com/Bodmer/TFT_eSPI/files/15031361/Setup406_GC9A01_ESP32.zip) is a copy of 46 with a different MOSI pin. It's added to the `User_Setup_Select.h` file and the `User_Setup.h` is set to use the GC9A01 driver.
opened 01:52PM - 16 May 24 UTC
Device crashes at boot.
Open issue in Arduino repo https://github.com/espressif… /arduino-esp32/issues/9618#issuecomment-2113344119
and
https://github.com/Xinyuan-LilyGO/T-Dongle-S3/issues/26
opened 02:45AM - 21 May 24 UTC
The issue that I am encountering is that a "Guru Meditation Error: Core 1 panic… 'ed (StoreProhibited). Exception was unhandled." just prior to executing the tft.init() function. This issue appears to be only graphics bases since I can execute this sketch with only Serial.println("..."); calls. I can use the Adafruit_GFX.h with the Adafruit_ST7789.h driver to do a test on a GFX application.
During an update something changed and I am at a loss to determine the root cause. Wiring is correct ( I have checked it many times).
1. IDE - Arduino version 2.3.2 CLI version 0.35.3
2. TFT_eSPI - version 2.5.43
3. Board Version - esp32 version 3.0.0.rc3 (I have regressed it back to ESP version 2.0.16 with no change in functionality, still reboots).
4. PROCESSOR - ESP32-S3
5. TFT Driver - ST7789 (TFT_eSPI sourced)
6. TFT Interface - SPI
See the following attached files for additional information you require:
[User_Setup.zip](https://github.com/Bodmer/TFT_eSPI/files/15383585/User_Setup.zip)
Sketch:
[WIFI_Channel_List.zip](https://github.com/Bodmer/TFT_eSPI/files/15383589/WIFI_Channel_List.zip)
TFT ; ST7789 IC 1.9 Inch ips Full View TFT Display LCD Color Module SPI Serial Port HD 170x320 MSP430 and C51 Programs
I have only one of these displays....
DEBUG Output:
[Debug Output.zip](https://github.com/Bodmer/TFT_eSPI/files/15383726/Debug.Output.zip)
Plus further information as appropriate to the problem:
1. TFT to processor connections used
2. A zip file containing your setup file (just drag and drop in message window - do not paste in long files!)
3. A zip file containing a simple and complete example sketch that demonstrates the problem but needs no special hardware sensors or libraries.
4. Screen shot pictures showing the setup
Thanks, John Taylor
I can be reached at taylorjw.nc@att.net
Edit: My test bench:
Arduino IDE 2.3.2
Seeed Studio XIAO ESP32S3
ESP32 board package: espressif/arduino-esp32 3.0.4
PSRAM: Disable
Display: ST7789
Interface: SPI
SPI Frequency: 80MHz
Tested on: September 12, 2024
srnet
September 18, 2024, 7:02am
15
Espressif do seem to make regular and significant changes to their core for the Arduino IDE, which does seem to break already published libraries.
I have gone back to Version 2.0.14 to achieve some stability.
I would certainly avoid using GPIO3 as it is a strapping pin.
tboy
June 13, 2025, 10:47pm
17
Super big thank you for this. Fixed the problem I have been working on for hours.
system
December 10, 2025, 10:47pm
18
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