Hello,
I’m running into a sporadic frame loss issue on ESP32 when using the SPI slave driver with DMA.
The SPI master continuously sends 20-byte data frames using its dma channel. (STM32 750KHz)
Occasionally, some frames are lost (not delivered to my receive task), even though the master clock and ...
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- Thu Sep 18, 2025 9:31 am
- Forum: General Discussion
- Topic: ESP32 SPI Slave: Sporadic frame loss when master sends 20-byte frames in every ~20us
- Replies: 0
- Views: 536