How can we use SPI over DMA on CYW43907?

[David_Zhang]

HI   Cypress;
      when we use CYW43907 ,  SPI  can normal communication, but the rate is only 1 Mbps, can not meet the application requirements, can you provide an example of SPI transmission through DMA?

      for the SPI we refer this below :

https://community.cypress.com/community/wiced-wifi/wiced-wifi-forums/blog/2017/12/27/spi-in-43907

https://community.cypress.com/community/wiced-wifi/wiced-wifi-forums/blog/2017/12/25/how-to-set-spi-...

[RaktimR_11]

Unfortunately, SPI transmission through DMA is not supported in CYW43907. But the speed should not be limited to 1 Mbps when used with GSIO driver.

[David_Zhang]

hi  RaktimeR:

        if we can't use DMA over SPI , and how to Increase speed of  IO，TKS;

[David_Zhang]

hi    RaktimeR:

add the application:

the SPI clock is 40MHz, but the data rate is too low, only 1Mbps.

[RaktimR_11]

The above mentioned blog post is tested for 10 Mbps. Can you please let me know how you got to the number of 1Mbps?

[David_Zhang]

hi  RaktimeR:

    how to get the 10Mbps  ， or  you can provide the code to me to try it, tks;