STM32F4 and SSD1963 noise problem

respected · ‎2013-12-09

Posted on December 09, 2013 at 15:02

I have 7'' TFT with SSD1963 chip. I noticed that there is a picture on the screen, but there is a big problem. As soon as I touched the screen body anywhere , the screen was dark. In addition, when I replaced software , the screen started working , but it started being dark again.

In fact, I have a power supply. It has 1.2V 3.3V and 5.0V at 3A. My controller is STM32F4.

I used FSMC

https://www.youtube.com/watch?v=8GR6RkV7kRo

Tesla DeLorean · ‎2013-12-09

Posted on December 09, 2013 at 15:29

Looks to reset your system, rather than ''noise'', consider if you have effective grounding and supply connections.

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respected · ‎2013-12-09

Posted on December 09, 2013 at 16:21

I used STM32F4 board and original STM32 ext BB board. Power supply hasn't noise. Because I saw on the oscilloscope. When I disconnected power supply and board, Noise is not there. If I connect board and power, I have seen noise signal on the scope.

Maybe caused by FSMC.