Loading...
 

Zephyr project on STM32

   Zephyr Workbench, a VSCode extension to manage Zephyr on STM32.
It enables users to easily create, develop, and debug Zephyr applications.
Main features:
  • Install host dependencies.
  • Import toolchain and SDK.
  • Create, configure, build and manage apps.
  • Debug STM32.
You can directly download it from the VSCode marketplace
For more details, visit the Zephyr Workbench

System Workbench for STM32

Forum List Topic List

[ prev topic | next topic ]  

Slowing DMA rate for SPI 2 transfers

Posted by Robmar on 2022-11-16 18:41

I noticed that when HCLK on my 32F406VG Discovery board is reduced to 84 MHz in MX the SPI 2 link to the LCD ILI9341 works.
At 168 MHz it fails and the SPI prescaler doesn’t fix the issue.
There is no separate DMA click divider, so I’m forced to slow the CPU down, tried reducing APB clocks by no change. :/
Any advice please? I’m probably missing something...

Reads: 3859
Link
Posted by Robmar on 2022-11-22 04:25
Was missing enabling FIFO on DMA. Check box was out of sight and not sure why its not default, so at higher speeds does the data get out of order?...
Link

 

Newest Forum Posts

  1. reservation car service Seattle by Jamesprede, 10:06
  2. Last day: drone bonus by Danielrug, 2025-04-19 16:55
  3. SPI on Nucleo_STMH533RE by higginsa1, 2025-03-25 07:37
  4. SPI on Nucleo_STMH533RE by royjamil, 2025-03-23 11:31
  5. SPI on Nucleo_STMH533RE by higginsa1, 2025-03-23 09:33
  6. Configuring DMA for ADC in SW? by sam.hodgson, 2025-03-04 12:58
  7. Insightful Perspectives on This Subject by davidsycle, 2025-03-04 05:45
  8. Build a project in "release" mode by info@creosrl.it, 2025-02-20 18:12
  9. Build a project in "release" mode by info@creosrl.it, 2025-02-20 17:05
  10. Build a project in "release" mode by tang, 2025-02-20 10:36

Last-Modified Blogs

  1. System Workbench for STM32