为什么HAL_UART_Transmit_DMA(&huart2, buffer, n) 在Timer中断回调函数中不能正常工作? HAL_UART_Transmit_DMA 函数,它在时基模式下从 TIM6 调用我的应用程序是通过 UART 发送当前编码器计数。最好以可确定的速率发送,这就是为什么我更喜欢使用 Timer。 这是我使用轮询模式时的部分代码 风尚男人 2023-02-...
HAL_UART_Transmit_DMA函数只能调用一次,第二次就返回状态HAL_UART_STATE_BUSY 0x02。 原因: stm32l1xx_hal_uart.c开头有描述 (##) DMA Configuration if you need to use DMA process (HAL_UART_Transmit_DMA() and HAL_UART_Receive_DMA() APIs): (+++) Declare a DMA handle structure for the Tx...
6. 错误的硬件连接：确保UART和DMA的硬件连接正确，包括引脚连接和电源连接等。如果以上方法都不能解决...
The STM32 project uses UART DMA to fill a TxFIFO in chunks then transmits bursts of 2.5Mbps data at semi-regular intervals (~30ms). I would like to implement a similar scheme with the ESP32. The ESP32 docs say there are two UART DMA controllers using link descriptors and such, but ...
Hello, I am configuring UART to transmit in DMA mode. it is difficult for me to configure other channels by referring to the additional code project.
我们会详细的讲解各个模块的使用和具体功能，并且基于HAL库实现Printf函数功能重定向，UART中断接收，本...
We have a UART driver on a Kinetis K10DX using DMA to TX and single character interrupt for the RX. It all works just fine but occasionally, very occasionally (like 10 days), it appears the Transmit Complete interrupt fails to fire causing us some problems. I've poured over...
搜标题 搜题干 搜选项 搜索 单项选择题 HAL_StatusTypeDef HAL_UART_Transmit_IT(UART_HandleTypeDef*huart,uint8_t *pData,uint16_t Size)函数,下列说法正确的是 A、DMA 方式发送数据 B、中断发送数据 C、中断接收数据 D、DMA 方式接收数据
Hello, I am configuring UART to transmit in DMA mode.it is difficult for me to configure other channels by referring to the additional code project. Can you help me configure the sample project of the UART2 channel and upload the configuration picture? thank you. I configured the n...