I made an acquisition board with STM32WB55rgv6. I want to save ads1299 sampling data to SD card by FATFS(via spi). But my write speed is only 1KB. Here are the measures I have tried： ①Improve SPI clock ②Replace faster SD card ③Mybuffer is 51200B

[Lep]

Although every time I write in a single block instead of multiple blocks， and I only use SPI, not DMA. But the write speed is too low, only 1KB. I've browsed through many measures, but they still haven't saved me. I used stm32cubeide to develop this project，

project opening address C:\Desktop\STM32Cube_FW_WB_V1.1.0\Projects\P-NUCLEO-WB55.Nucleo\Applications\FatFs\FatFs_uSD_Standalone\SW4STM32

[Tesla DeLorean]

Dupe https://community.st.com/s/question/0D53W00001gxf1jSAA/i-made-an-acquisition-board-with-stm32wb55rgv6-i-want-to-save-ads1299-sampling-data-to-sd-card-by-fatfsvia-spi-but-my-write-speed-is-only-1kb-here-are-the-measures-i-have-triedimprove-spi-clockreplace-faster-sd-cardmybuffer-is-51200b

Please don't put the entire question into the summary/title