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- Wed Oct 17, 2018 3:14 pm
- Forum: Hardware
- Topic: SPI slave driver, last 4 Bytes missing (using DMA)
- Replies: 15
- Views: 5522
Hello, I am having the same issue using the ESP32 WROVER as slave, maximum buffer size to have a valid transfer on SPI, using DMA, between master and slave, is 4092. There is one place where is specified that the DMA buffer size is limited at 4092 byte, "Because limited of DMA buffer is 4092 bytes" ...