16 bit i8080 interface ESP32s3+st7796 code，doesn't display anything

moononournation / Arduino_GFX

Arduino GFX developing for various color displays and various data bus interfaces

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16 bit i8080 interface ESP32s3+st7796 code，doesn't display anything #449

Closed 774471872 closed 2 months ago

774471872 commented 4 months ago

Has the code of the 16 bit i8080 interface driver for the 320x480 screen of ESP32s3+st7796 been tested? Why did I run the example/PDQgraphicstest routine as instructed, but the screen still doesn't display anything

moononournation commented 3 months ago

any details?

moononournation commented 3 months ago

please use the format that can view in github

774471872 commented 3 months ago

This is the configuration of Arduino_GFX_databus. h. My SOC is esp32s3, and the communication method with the monitor is a 16 bit i8080 interface

My device is esp32-s3-devkitc-1, and there is no device in Arduino_GFX_dev_device. h, so I did not make any modifications

I uncommented this code in Arduino_GFX_display. h, Because my monitor driver chip is ST7796s and the screen size is 320 * 480

I did not make any changes in arduino_GFX_pins. h because the development board I selected in arduinoIDE is esp32s3 dev module

774471872 commented 3 months ago

This is a photo of the hardware

That lead resistor is the pull-up resistor of the RD pin, but adding this resistor doesn't seem to be useful
As shown in the figure, the screen backlight is normal, but the content is not displayed, only a white patch

moononournation commented 2 months ago

not tested, seems not working