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为stm32f103导入hal库
为了让 HAL_UARTEx_ReceiveToIdle_DMA
函数在接收半满时不触发 RxEventCallback
回调,将 UART_Start_Receive_DMA
函数中的:
/* Set the UART DMA Half transfer complete callback */
huart->hdmarx->XferHalfCpltCallback = UART_DMARxHalfCplt;
改为
/* Set the UART DMA Half transfer complete callback */
huart->hdmarx->XferHalfCpltCallback = NULL;// 我把它改为 NULL,避免触发接收半满回调。
以后如果更新 HAL 库,需要注意,要在新版 HAL 库中重复这里的修改。
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