S32 SDKのトピックRe: S32K312 UART Transmit & Receive Using DMA

S32K312 UART Transmit & Receive Using DMA

li3 — Mon, 01 Apr 2024 11:07:22 GMT

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 new project UART6 through the configuration item of the attached project example, but it failed. Is the configuration missing?

Example S32K312 UART Transmit & Receive Using DMA DS3.5 RTD300 - NXP Community

Re: S32K312 UART Transmit & Receive Using DMA

li3 — Tue, 02 Apr 2024 09:03:22 GMT

在Dma_Mux配置DMA物理通道，即可使用DMA

Re: S32K312 UART Transmit & Receive Using DMA

Robin_Shen — Tue, 02 Apr 2024 11:17:38 GMT

Thanks for sharing.
I am glad to hear that it works now.

Re: S32K312 UART Transmit & Receive Using DMA

li3 — Tue, 02 Apr 2024 13:04:31 GMT

你好

为什么在配置 RM 组件时，DMA Mux Sourse 中只能选择 UART0 和 UART1 通道？

谢谢。

Re: S32K312 UART Transmit & Receive Using DMA

Robin_Shen — Wed, 03 Apr 2024 01:54:07 GMT

DMAMUX_0 and DMAMUX_1 channels are mapped to eDMA_TCD 0–15 and 16–31, respectively.
excluding S32K312 where
DMAMUX_0 and DMAMUX_1 channels are mapped to eDMA_TCD 0–5 and 6–12, respectively.
So please change the Dma Hardware Channel.

Re: S32K312 UART Transmit & Receive Using DMA

li3 — Wed, 03 Apr 2024 02:02:54 GMT

hello,

Thank you for your reply, I have successfully configured.

thank you.