STM32F4 DMA/UART application notes.

[John Hite]

Posted on January 31, 2017 at 18:19

I am using an STM32 F437 processor and the broken code I inherited uses the DMA to handle traffic from UART8. I am still grasping at straws a bit trying to find the best sources of information. So I am hoping someone more familiar with the product line and the ST site might be able to point me an application note for DMA/UARTS.

Thanks,

jh

[Khouloud GARSI]

Posted on January 31, 2017 at 19:19

Hi John,

You can:

• Refer to the DMA and USART section in the reference manual

  http://www.st.com/content/ccc/resource/technical/document/reference_manual/3d/6d/5a/66/b4/99/40/d4/DM00031020.pdf/files/DM00031020.pdf/jcr:content/translations/en.DM00031020.pdf

  .
• Take a look at

  http://www.st.com/content/ccc/resource/technical/document/application_note/27/46/7c/ea/2d/91/40/a9/DM00046011.pdf/files/DM00046011.pdf/jcr:content/translations/en.DM00046011.pdf

  ; Which is an application note describing how to use the DMA controller available our STM32F2, STM32F4 and STM32F7 series.
• Use the

  http://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-configurators-and-code-generators/stm32cubemx.html

  tool. It will help you to correctly configure your peripherals.
• Also, there is an example entitled 'USART_DataExchangeDMA' under the

  http://www.st.com/content/st_com/en/products/embedded-software/mcus-embedded-software/stm32-embedded-software/stm32-standard-peripheral-libraries/stsw-stm32065.html

  package:

STM32F4xx_DSP_StdPeriph_Lib_V1.8.0\Project\STM32F4xx_StdPeriph_Examples\USART\USART_TwoBoards

May this help you.

Khouloud

[Tesla DeLorean]

Posted on January 31, 2017 at 20:34

Posted code into prior thread, awaiting moderation/approval

https://community.st.com/0D50X00009Xkg8YSAR

 

[John Hite]

Posted on January 31, 2017 at 19:44

Thanks I will look into these references but perhaps not cube as it

generates HAL code and we are not using HAL.

John

On Tue, Jan 31, 2017 at 1:20 PM, Khouloud G <st-microelectronics@jiveon.com>

[waclawek.jan]

Posted on January 31, 2017 at 20:05

SPL?

You might have a look at  [

https://my.st.com/content/my_st_com/en/products/embedded-software/mcus-embedded-software/stm32-embedded-software/stm32-standard-peripheral-libraries/stsw-stm32065.html

]\Project\STM32F4xx_StdPeriph_Examples\USART\USART_TwoBoards\USART_DataExchangeDMA\

JW

[Tesla DeLorean]

Posted on January 31, 2017 at 20:37

 ,

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Materially similar to

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