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STM32F207 DMSBMR->SR always TRUE

Question asked by lin.calvin on Aug 18, 2015
Latest reply on Aug 19, 2015 by lin.calvin
Hi all,

I have a problem when I want to start-up my LAN board, the example program I used is STM32F2x7_ETH_LwIP_V1.0.2, after the program is running, the software reset polling flag ((ETH->DMABMR & ETH_DMABMR_SR) will always TRUE.
I browsed many similar post and inspected the clock source on the pins ETH_RXCLK,ETH_TXCLK and there are correctly sourced with 25MHz signal.
but the flag ETH_DMABMR_SR is still TRUE, are there any other ways I can debug my board?