Nucleo-U575: Not getting serial output data with DMA

[nehaEmerson-123]

I am using STM32U575 Nucleo development board and I am trying to configure DMA through STMCube IDE. I have configured the DMA and generated code through it. Added required code but I am not getting data on serial through DMA. Is there any alternate way to get data on serial using DMA?

[TDK]

Maybe there is no data coming in.

Maybe the DMA can't access the memory where the buffer is.

Maybe you haven't called the function to read the data.

 

I suggest following an existing example or showing your code.

[nehaEmerson-123]

From where I can get existing example?

[TDK]

Using the Example Selector in STM32CubeMX is probably the easiest way. Here is a relevant example:

 

[Andrew Neil]

Welcome to the forum.

For best results, see How to write your question to maximize your chances to find a solution.

 

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@nehaEmerson-123 wrote:

 I am not getting data on serial through DMA

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How are you testing that?

Before adding the complications of DMA, have you got it working using just a basic HAL_UART_Transmit ?

 

You should find examples of UART comms with & without DMA via Cube MX

[nehaEmerson-123]

Yes I was able to get using basic HAL_UART_Transmit.

[nehaEmerson-123]

I will check the examples. Thanks @Andrew Neil.