The DMA error is a DMA bus error. This part of the code creates the DMA error code. See the arrow <--- HERE! /* ETH DMA Error */ if (__HAL_ETH_DMA_GET_IT(heth, ETH_DMASR_AIS)) { if (__HAL_ETH_DMA_GET_IT_SOURCE(heth, ETH_DMAIER_AISE)) {...
STM32CubeMX 可以方便的配置芯片自带的 ETH MAC ，可以配置 LwIP ，在 LwIP 中还可以选择一些 ETH ...
stm32 以太网发送一段时间后发送描述符状态一直为DMA拥有,造成以太网发送停止,发送过程中什么原因会造成描述符一直为DMA拥有;(发送接收同时进行,接收为中断接收) `` if ((DMATxDescToSet->Status & ETH_DMATxDesc_OWN) != (u32)RESET) { return ETH_ERROR; }...
SET_BIT(dmarxdesc->DESC3, ETH_DMARXNDESCRF_IOC);//描述符都给了ETH居然还要修改 } 这是stm32...
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if((READ_BIT(dmatxdesc->DESC3, ETH_DMATXNDESCWBF_OWN) == ETH_DMATXNDESCWBF_OWN) || (dmatxdesclist->PacketAddress[descidx] != NULL)) { return HAL_ETH_ERROR_BUSY; } /***/ /*** Context descriptor configuration (Optional) ***/ /***...
if the checksum is OK the DMA can handle the frame otherwise the frame is dropped */ /*丢弃校验错误帧不执行(因为未进行硬件校验)*/ ETH_InitStructure.ETH_DropTCPIPChecksumErrorFrame = ETH_DropTCPIPChecksumErrorFrame_Disable; ETH_InitStructure.ETH_ReceiveStoreForward = ETH_ReceiveStoreForward_Disabl...
上一节实现了STM32ETH MAC数据链路层的数据收发,本节在上一节的基础上移植LwIP协议栈,实现网络层收发数据。LwIP协议栈的移植主要参考ST的官方参考文件STSW-STM32070的LwIP例程实现。一、LwIP的启动流程在LwIP的官方文档中找到System initalization,文档中说明了LwIP的正常启动流程。lwip_init(): 初始化lwip内核与其...
check that pTx pointer: if it's not pointing to ethernet DMA accessible SRAM, allocate a new pbuf pRam from SRAM and copy the contents of pTx to the new pRam give pRam to ETH free input pTx (I am not sure about this right now concerning TCP an...
if the checksum is OK the DMA can handle the frame otherwise the frame is dropped*//*丢弃校验错误帧不执行(因为未进行硬件校验)*/ETH_InitStructure.ETH_DropTCPIPChecksumErrorFrame=ETH_DropTCPIPChecksumErrorFrame_Disable; ETH_InitStructure.ETH_ReceiveStoreForward= ETH_ReceiveStoreForward_Disable;//接收...