From 5ae29bc4e5421a2872d55a945febdb5c23fc2bce Mon Sep 17 00:00:00 2001 From: Armando Date: Fri, 29 Dec 2023 15:55:52 +0800 Subject: [PATCH] doc(sdmmc): added doc about ldo usage on esp32p4 --- docs/en/api-reference/peripherals/sdmmc_host.rst | 1 + 1 file changed, 1 insertion(+) diff --git a/docs/en/api-reference/peripherals/sdmmc_host.rst b/docs/en/api-reference/peripherals/sdmmc_host.rst index 5b8f231447..b8517de4ba 100644 --- a/docs/en/api-reference/peripherals/sdmmc_host.rst +++ b/docs/en/api-reference/peripherals/sdmmc_host.rst @@ -76,6 +76,7 @@ Overview - :c:macro:`SDMMC_HOST_SLOT_1` is routed via GPIO Matrix. This means that any GPIO may be used for each of the SD card signals. It is for non UHS-I usage. - :c:macro:`SDMMC_HOST_SLOT_0` is dedicated to UHS-I mode, which is not yet supported in the driver. + Currently SDMMC host driver is using the on-chip LDO 4 as the default power supply. SDMMC power control driver is not supported yet. If you buy the ESP32P4 chip itself and plan to use SDMMC peripheral, make sure the VDDPST_5 pin is connected to the on-chip LDO 4 or correct external power supply. Supported Speed Modes ---------------------