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esp-idf/components/sdmmc
History
Xiao Xufeng 216284b767 feat(sdio): add sdio over sdmmc support for esp32p4
2024-01-14 01:05:00 +08:00
..
include feat(sdio): add sdio over sdmmc support for esp32p4 2024-01-14 01:05:00 +08:00
CMakeLists.txt feat(sdmmc): use ldo as power supply on esp32p4 2024-01-04 15:34:59 +08:00
README.md feat(sd): added readme for dependency among SD host related components 2023-11-20 12:30:03 +08:00
sdmmc_cmd.c refactor: Remove -Wno-format from storage related components 2023-10-22 17:56:41 +00:00
sdmmc_common.c feat(sdio): add sdio over sdmmc support for esp32p4 2024-01-14 01:05:00 +08:00
sdmmc_common.h feat(sdio): add sdio over sdmmc support for esp32p4 2024-01-14 01:05:00 +08:00
sdmmc_init.c feat(sdio): add sdio over sdmmc support for esp32p4 2024-01-14 01:05:00 +08:00
sdmmc_io.c feat(sdio): add sdio over sdmmc support for esp32p4 2024-01-14 01:05:00 +08:00
sdmmc_mmc.c refactor: Remove -Wno-format from storage related components 2023-10-22 17:56:41 +00:00
sdmmc_sd.c feat(sdmmc): use ldo as power supply on esp32p4 2024-01-04 15:34:59 +08:00

README.md

SDMMC Protocol Layer Driver

SD Host Side Related Component Architecture

Architecture Graph

                        ┌─────────────────────────────────────────────┐
                        │                                             │
                        │  SD Protocol Layer Driver: components/sdmmc │
                        │                                             │
                        └──────────▲────────────────────▲─────────────┘
                                   │                    │
                                   │                    │
                        Implements │                    │ Implements
                                   │                    │
┌──────────────────────────────────┴─────┐         ┌────┴───────────────────────────────────┐
│                                        │         │                                        │
│Host Driver: components/esp_driver_sdmmc│         │Host Driver: components/esp_driver_sdspi│
│                                        │         │                                        │
└────────────────────────────────────────┘         └────────────────────────────────────────┘

Components

  • sdmmc: SD protocol layer driver, it provides SD protocol related definitions and interfaces. With corresponding implementation drivers, sdmmc APIs can help you:
    • send commands to slave devices
    • send and receive data
    • handle error conditions within the bus
  • esp_driver_sdmmc: SDMMC Host driver for ESP SDMMC hardware, it implements the sdmmc protocol interfaces.
  • esp_driver_sdspi: SDSPI Host driver for ESP GPSPI hardware, it implements the sdmmc protocol interfaces.

Dependency

  • esp_driver_sdmmc is in driver layer (G2), it relies on sdmmc
  • esp_driver_sdspi is in driver layer (G2), it relies on sdmmc
  • sdmmc does not and should not rely on esp_driver_sdmmc or esp_driver_sdspi. Though sdmmc is independent, it still stays in G2.