Problems during initialization of Ethernet on STM32F429

bobdeschambault9 · ‎2015-04-16

Posted on April 16, 2015 at 21:53

We are using LwIP running under CMSIS-RTOS and we are trying to initialize the Ethernet peripheral on an STM32F429. I have traced the problem to a line in the ST Cube code v1.5.0, in the file stm32fxx_hal_eth.c. It near a comment about doing an Ethernet Software reset. The line is:

while (((heth->Instance)->DMABMR & ETH_DMABMR_SR) != (uint32_t)RESET)

{

}

It never gets out of this while loop. I believe that I have forgotten to do something or properly initialize something. Any ideas?

Thanks,

Bob

Tesla DeLorean · ‎2015-04-16

Posted on April 17, 2015 at 03:05

Check the clocks for the ETH and PHY, if supplying PHY via clock out of MCO check that, GPIOA, SYSCFG, etc.

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