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Ivan Grokhotkov f824a827dc fix(sdmmc): move DMA descriptor refilling into the ISR

Previously, as DMA descriptors were processed, the task performing
SDMMC transfer would get woken up and would refill the descriptors.
This design didn't work correctly when higher priority tasks occupied
the CPU for too long, resulting in SDMMC transfer timing out.

This change moves DMA descriptor refilling into SDMMC ISR. Now the
"DMA done" interrupt is delivered back to task context only when
the entire transfer is completed.

Closes https://github.com/espressif/esp-idf/issues/13934

2025-03-12 13:06:57 +08:00

..

change(sdmmc): allow speciying pins for IOMUX slots as well

2024-11-26 17:44:17 +08:00

fix(sdmmc): move DMA descriptor refilling into the ISR

2025-03-12 13:06:57 +08:00

test(emmc): disabled emmc tests on p4

2024-11-26 17:44:17 +08:00

CMakeLists.txt

refactor(sdmmc): dependency inversion to sdmmc component

2023-11-16 15:37:32 +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

SDMMC Host Driver

SD Host side related components are:

sdmmc
esp_driver_sdmmc (current component)
esp_driver_sdspi

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

esp_driver_sdmmc components holds SDMMC Host driver for ESP SDMMC peripheral, this driver provides APIs to help you:

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

You can

use this driver to implement sdmmc protocol interfaces
directly use esp_driver_sdmmc APIs

to communicate with SD slave devices under SD mode.