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esp-idf/components/esp_driver_sdspi
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morris b99459931a fix(sdspi): reject oversized pre-read data before block receive 
Guard start_command_read_blocks against cards that place TOKEN_BLOCK_START so early that extra_data_size exceeds the bytes expected on the current iteration. Without this check, the unsigned subtraction for will_receive underflows and propagates into memset, SPI transaction length, and memcpy counts against the fixed 516-byte block buffer.
2026-07-09 10:27:01 +08:00
..
include/driver
feat(sdmmc): Try to reallocate smaller DMA buffer if larger one failed
2026-03-16 13:37:01 +01:00
src
fix(sdspi): reject oversized pre-read data before block receive
2026-07-09 10:27:01 +08:00
test_apps
fix(sdmmc): Add a better handling of devices accessing PSRAM through DMA
2026-07-02 11:39:20 +02:00
CMakeLists.txt
refactor(sd): replace esp_dma_ with heap_caps_
2025-01-20 10:54:59 +08:00
README.md
feat(sd): added readme for dependency among SD host related components
2023-11-20 12:30:03 +08:00

README.md

SDSPI Host Driver

SD Host side related components are:

  • sdmmc
  • esp_driver_sdmmc
  • esp_driver_sdspi (current component)

For relationship and dependency among these components, see SD Host Side Related Component Architecture.

esp_driver_sdspi components is a driver based on ESP GPSPI master driver to help you:

  • do SD transactions (under SDSPI mode) via ESP GPSPI peripheral.
  • tune ESP GPSPI hardware configurations, such as clock frequency, bus width, etc.
  • ...

You can

  • use this driver to implement sdmmc protocol interfaces
  • directly use esp_driver_sdspi APIs

to communicate with SD slave devices under SDSPI mode.