Problem in communication of STM32F429 with STMPE811

ali · ‎2017-08-24

Posted on August 25, 2017 at 07:00

Hello,

I used STM32F429 for communicating with STMPE811 through SPI port.

In the beginning, I read chip ID of STMPE811 in order to make sure communication is correct.

Sometimes, IC doesn't return anything. I set the pins in order to make sure correct mode of SPI is

selected but it seems that IC is in reset mode and it didn't return anything.

I have to turn ON and OFF my board several times in order to get the functionality back.

I appreciate if someone could help me

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ali · ‎2017-09-04

Posted on September 04, 2017 at 14:48

Dear

FORTOUNAS.EVANGELOS

,

The software problem is solved and I thank you for that.

My remaining problem is sometimes I face bad communications; For example, the IC return 0x4040 for Device ID instead of

0x08 I think it is some hardware problem but I'm not sure.

I appreciate if you help me