retogaeh edited a comment on pull request #3760: URL: https://github.com/apache/incubator-nuttx/pull/3760#issuecomment-854126630
Hey fjpanang, We use 4GB cards and interface them over a simple SPI of a STM32h7. I didn't measure how long it takes but it seemed to be pretty fast. On what frequency is your SPI running? For a 4 GB card it has to loop over ~120k integers located in the fat table distributed over appx. 1000 blocks. Edit: Just measured it: 4 GB SwissBit card, running on single SPI@20 MHz takes about 400 ms. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org
