AnsweredAssumed Answered

STM32F334 SPI TX DMA

Question asked by Manu Abraham on Mar 8, 2017
Latest reply on Mar 9, 2017 by Manu Abraham

Hi,

 

Followed a similar thread with SPI Rx Slave in

STM32F3 SPI slave receive with DMA 

 

followed the same, but used Channel 3 instead..

The RM0364, DocID025177 Rev 2, Page #179, Figure 20. STM32F334xx DMA1 request mapping,

states that DMA1 Channel 3 needs remapping to be used with SPI1. It appears to be the same for

any DMA Channel.

 

Nevertheless it appears that all SPI TX DMA transfers do need a DMA remap, according to the

figure 20. But well, that aside ..

 

Though I tried remap, there appears to be no change. I have connected a scope to the SCK pin,

there appears to be no activity at all.

 

Any thoughts, on the following code ?

 

Thanks.

Attachments

Outcomes