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[STM32H7]

STM32F207VCTx的UART5到底使用哪个？

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白云法援|  楼主 | 2022-5-28 18:02 | 只看该作者 回帖奖励 |倒序浏览 |阅读模式
使用, UART, STM32F207, 30, COM, ID
看到资料里有DMA1的通道0和DMA1通道7对应的DMA的收发，STM32CubeMX去配置UART5的时候不能配置
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沙发
香水城|版主 | 2019-4-29 14:50 | 只看该作者
首先要弄清DMA基本原理。
DMA请求，DMA源端，DMA目的端。 即谁触发DMA，DMA将数据从哪里传输到哪里，用哪个DMA 流。

我刚看了下，UART5_TX/RX都可以触发DMA请求啊。 在cubeMx里的DMA相应配置处选择ADD.

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沙发
小明的同学| | 2022-5-28 18:31 | 只看该作者
你中毒了吗

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