feat(sdmmc): Toggle sd power pin for 200ms

Author: P-R-O-C-H-Y

libraries/SD_MMC/src/SD_MMC.cpp

@@ -260,8 +260,13 @@ bool SDMMCFS::begin(const char *mountpoint, bool mode1bit, bool format_if_mount_
 #endif
 
 #if defined(BOARD_SDMMC_POWER_PIN)
+#ifndef BOARD_SDMMC_POWER_ON_LEVEL
+  #error "BOARD_SDMMC_POWER_ON_LEVEL not defined, please define it in pins_arduino.h"
+#endif
   pinMode(BOARD_SDMMC_POWER_PIN, OUTPUT);
-  digitalWrite(BOARD_SDMMC_POWER_PIN, HIGH);
+  digitalWrite(BOARD_SDMMC_POWER_PIN, !BOARD_SDMMC_POWER_ON_LEVEL);
+  delay(200);
+  digitalWrite(BOARD_SDMMC_POWER_PIN, BOARD_SDMMC_POWER_ON_LEVEL);
   perimanSetPinBusExtraType(BOARD_SDMMC_POWER_PIN, "SDMMC_POWER");
 #endif
 
@@ -331,6 +336,9 @@ void SDMMCFS::end() {
       perimanClearPinBus(_pin_d2);
       perimanClearPinBus(_pin_d3);
     }
+  #if defined(BOARD_SDMMC_POWER_PIN)
+    perimanClearPinBus(BOARD_SDMMC_POWER_PIN);
+  #endif
   }
 }
 

variants/esp32p4/pins_arduino.h

@@ -70,6 +70,7 @@ static const uint8_t T13 = 15;
 #define BOARD_SDMMC_SLOT 0
 #define BOARD_SDMMC_POWER_CHANNEL 4
 #define BOARD_SDMMC_POWER_PIN 45
+#define BOARD_SDMMC_POWER_ON_LEVEL LOW
 
 //WIFI - ESP32C6
 #define BOARD_HAS_SDIO_ESP_HOSTED