Posted on May 03, 2015 at 19:53Hello, I have an olimex E407 board featuring stm32f407zgt. I create a simple application using cubeMX and want to ping.
The board receives packets (I can see this using LWIP_DEBUG functionality) but the TX does not work.
In xxx_hal_eth.c in the function HAL_ETH_TransmitFrame:
Tx DMA seems blocked and the code runs into this section:
/* When Tx Buffer unavailable flag is set: clear it and resume transmission */
if (((heth->Instance)->DMASR & ETH_DMASR_TBUS) != (uint32_t)RESET)
{
/* Clear TBUS ETHERNET DMA flag */
(heth->Instance)->DMASR = ETH_DMASR_TBUS;
/* Resume DMA transmission*/
(heth->Instance)->DMATPDR = 0;
}
I do not see any ETH frame being transmitted.
Any hints?
Regards, Adib.
--
#cubemx #stm32f4 #ethernet
