TFT display only showing white

[naf9000]

Hello,
I have assembled my own ESP32-DIV using the BOM sheet and PCB files provided. I have flashed the correct firmware, and confirmed so by looking in the serial monitor. However, when the board is powered, the display only shows a blinding white color. I am currently at a loss as to what i should do to resolve this. Could there be any solder bridges that could cause this? Or is it an issue with the code? Please help me.

[WXLN]

您好， 我已经使用提供的 BOM 表和 PCB 文件组装了自己的 ESP32-DIV。我已经烧录了正确的固件，并通过串口监视器确认了这一点。但是，当电路板通电时，显示屏只显示刺眼的白色。我目前不知道该如何解决这个问题。会不会是焊桥导致了这个问题？还是代码本身的问题？请帮帮我。

If your hardware is not used incorrectly, then it is not soldered properly。

[naf9000]

Hello, sorry for late reply.
I did originally use solder paste to attach the components. should I retry attaching the components with hand soldering?

[naf9000]

Update: resoldered everything, still nothing.
serial log below
E (594) ADC: adc1_lock_release(419): adc1 lock release called before acquire
E (601) ADC: adc1_lock_release(419): adc1 lock release called before acquire
E (608) ADC: adc1_lock_release(419): adc1 lock release called before acquire
E (615) ADC: adc1_lock_release(419): adc1 lock release call��x before acquire
E (621) ADC: adc1_lock_release(419): adc1 lock release called before acquire

ESP32-DIV
Developed by: CiferTech
Version: 1.1.0
Contact: cifertech@gmail.com
GitHub: github.com/cifertech
Website: CiferTech.net

Button 0: Pressed
Button 1: Pressed
Button 2: Pressed
Button 3: Pressed
Button 4: Pressed
Button 5: Pressed
Button 6: Pressed
Button 7: Pressed

[X8OCT]

try this, it helped me
#48

[kazz2020]

i have div and when its not with shield it works when i use shield the screen is white. any ideas?

[naf9000]

Check if any solder points are bridged

[kazz2020]

Check if any solder points are bridged

and if i have XL8574T with addresss range 20h-27h is this a problem when in code is 38h? is this a issue when i didnt change it in code? or it can be somethging more? curently i dont have possibility to check ;/

[kazz2020]

Check if any solder points are bridged

and if i have XL8574T with addresss range 20h-27h is this a problem when in code is 38h? is this a issue when i didnt change it in code? or it can be somethging more? curently i dont have possibility to check ;/

ok 20h is correct for my chip and this is in code. i dont see any bridges :/

[naf9000]

Nothing is wrong with the code or the main board if it works at all

[naf9000]

I'd like you to try connecting the main and shield boards
Then, connect the device to your computer and open Arduino IDE>serial monitor
When connected, press the reset button on the board and send the full output here

[naf9000]

Check if any solder points are bridged

and if i have XL8574T with addresss range 20h-27h is this a problem when in code is 38h? is this a issue when i didnt change it in code? or it can be somethging more? curently i dont have possibility to check ;/

In code it should be 0x20 for the address if you are using 8574T

[kazz2020]

Check if any solder points are bridged

and if i have XL8574T with addresss range 20h-27h is this a problem when in code is 38h? is this a issue when i didnt change it in code? or it can be somethging more? curently i dont have possibility to check ;/

In code it should be 0x20 for the address if you are using 8574T

i dont know what hapend but now when i connect div i see Verifone USB to printer with exclamation mark instead COM port. wtf

[naf9000]

Try connecting without the shield
Tell me if you see the same results

[kazz2020]

Try connecting without the shield
Tell me if you see the same results

Same That's strange becouse I've flashed this before so I don't know what happend

[naf9000]

Do you have any other devices to test with?