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- Tue Jan 14, 2020 4:20 am
- Forum: ESP32 IDF
- Topic: SPI Transmit with command phase only affects next rx transmission
- Replies: 2
- Views: 400
Had the exact same issue with FRAM via SPI. The single command write enable is the culprit. Overriding the default and putting the command in the tx_data buffer solved it for me. There must be an edge case in the drivers when DMA is enabled but both the RX and TX pointers are NULL? spi_transactio...