SDMMC, read/write command with large data
Posted: Wed Jun 21, 2023 3:16 am
Good morning,
I am using esp-idf 5.0.1 to develop sdmmc host.
Due to DMA buffer is limitted, I can not write/read large data in one sdmmc ommand.
Is there any possibility to read/write lage data in one sdmmc command?
For example, the first transation is CMD25 + 256KB, the second transation is 256KB only, and the last transation is CMD12.
Thanks a lot.
Vincent
I am using esp-idf 5.0.1 to develop sdmmc host.
Due to DMA buffer is limitted, I can not write/read large data in one sdmmc ommand.
Is there any possibility to read/write lage data in one sdmmc command?
For example, the first transation is CMD25 + 256KB, the second transation is 256KB only, and the last transation is CMD12.
Thanks a lot.
Vincent