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by col135
Tue Jan 14, 2020 4:20 am
Forum: ESP-IDF
Topic: SPI Transmit with command phase only affects next rx transmission
Replies: 2
Views: 3260

Re: SPI Transmit with command phase only affects next rx transmission

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[0] 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...