ESP8266, most recent version does not work, 1.0.2 is ok.

[Seppeltronics]

Hello, I’m using an ESP8266 and a ILI9341, with the 1.0.2 it just works fine, with the most recent version it fails, just shows a white screen. I use the 2.0.3 SPI Driver and Adafruit_GFX from May.27. 2017 . My guess is that the tft.begin(), which was changed may cause the issiue,... .

I get a Stacktrace:

<<<stack<<<
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Soft WDT reset

ctx: cont
sp: 3ffef270 end: 3ffef4d0 offset: 01b0

stack>>>
3ffef420: 0000013f 000000ef 3ffee3ac 4020246f
3ffef430: 00000000 3ffee460 000018f0 40202b06
3ffef440: feefeffe 00000001 3ffee3ac 00000140
3ffef450: 00012c00 00000000 3ffee3ac 40202bd5
3ffef460: 000000f0 00000000 3ffee3ac 4020392c
3ffef470: 00000000 00000000 3ffee3ac 4020246f
3ffef480: 3fffdad0 00000028 3ffee3ac 3ffee4a8
3ffef490: 3fffdad0 00000000 3ffee3ac 40203c59
3ffef4a0: 3fffdad0 00000000 3ffee3ac 40201c49
3ffef4b0: feefeffe feefeffe 3ffee4a0 402035a0
3ffef4c0: feefeffe feefeffe 3ffee4b0 40100718
<<<stack<<<
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---

Following pin’s are used:

ILI9341 :ESP8266
D/C :GPIO16
SCLK :GPIO14(SCK)
MISO :GPIO12(MISO)
MOSI :GPIO13(MOSI)
CS :GPIO0
RESET :RESET

The Code used is:

#include <Arduino.h>
#include <stdint.h>
#include <SPI.h>
#include <Adafruit_ILI9341.h>
#include <Adafruit_GFX.h>

#define TFT_DC D2
#define TFT_CS D8

Adafruit_ILI9341 tft = Adafruit_ILI9341(TFT_CS, TFT_DC);

void setup()
{
tft.begin(500000);
tft.setRotation(1);
}

void loop()
{
tft.fillScreen(ILI9341_BLACK);
delay(500);
tft.fillScreen(ILI9341_GREEN);
delay(500);
}

[Limor "Ladyada" Fried]

1.0.10 just tested, works fine. use latest

[Seppeltronics]

Actually it does not with 1.0.10 . I do not exactly know what is wrong, given the fact that it works with 1.0.2, something is different with 1.0.10. I used the "graphicstest.ino", all I modifies was:

// For the Adafruit shield, these are the default.
//#define TFT_DC 9
//#define TFT_CS 10
#define TFT_DC D2
#define TFT_CS D8

@WereCatf #12 mentioned GPIO0 may be an error in your Library, is that issue fixed already? I hooked up a Logic-Analyzer, from the brief look they are about the same, there seems to be a problem with the ChipSelect. "Something" is happening on GPIO0 and it does not seem to use the ESP8266es HW SPI?

Overview 1.0.2:

Overview 1.0.10:

[Limor "Ladyada" Fried]

try the featherwing example wiring, we used it with the touchpaint demo last night