linguini1 commented on code in PR #18467: URL: https://github.com/apache/nuttx/pull/18467#discussion_r2867520212
########## Documentation/platforms/xtensa/esp32s3/spi.rst: ########## @@ -0,0 +1,40 @@ +SPI Configuration for ESP32-S3 +=============================== + +This guide explains how to configure SPI on ESP32-S3, addressing common issues +like the one reported in `Issue #12638 <https://github.com/apache/nuttx/issues/12638>`_. + +Prerequisites +------------- +- NuttX configured for ESP32-S3 +- Basic understanding of the NuttX configuration system + +Configuration Steps +------------------- +1. Enable SPI support in menuconfig:: + + Device Drivers -> SPI Driver Support -> [*] SPI + +2. Select the SPI peripheral:: + + System Type -> ESP32-S3 Peripheral Selection -> [*] SPI2 + +3. Configure additional SPI options as needed:: + + Device Drivers -> SPI Driver Support -> [*] SPI Exchange + +Common Issues and Solutions +--------------------------- +- **SPI not appearing in menuconfig**: Ensure DMA is enabled first +- **Pin conflicts**: Check board pin assignments against your schematic +- **SPI transactions failing**: Verify clock polarity and phase settings + +Verification +------------ +After configuration, you can verify SPI is working by: + +1. Building NuttX with your configuration +2. Running a simple SPI test application Review Comment: Such as? -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
