AnsweredAssumed Answered

HSERDY bit is always 0

Question asked by david on Sep 8, 2012
Latest reply on Sep 10, 2012 by Clive One
Hi guys,

I have a board from hardware guys who told me they had tested this board and everything is fine including SPI1. But I cannot let my SPI1 working because status register bit TXE is always 0. From the specification, this bit should be 0 at reset status. Then I went through the code and found function RCC_WaitForHSEStartUp() always returns ERROR. I checked the address 0x40021000, it was 0x10001.

We are using 8MHz external clock. Can anyone give me any clus that I can check to find the problem?

Thanks in advance.