SD_MMC update

libraries/SD_MMC/examples/SDMMC_Test/SDMMC_Test.ino

@@ -35,13 +35,12 @@
 // Warning: ESP32-S3-WROOM-2 is using most of the default GPIOs (33-37) to interface with on-board OPI flash.
 //   If the SD_MMC is initialized with default pins it will result in rebooting loop - please
 //   reassign the pins elsewhere using the mentioned command `setPins`.
-//   The easiest option is to uncomment the definitions below.
 // Note: ESP32-S3-WROOM-1 does not have GPIO 33 and 34 broken out.
-// Note: If it's ok to use default pins, you do not need to call the setPins
+// Note: The board SP32-S3-USB-OTG has predefined default pins and the following definitions with the setPins() call will not be compiled.
 // Note: Pins in this definition block are ordered from top down in order in which they are on the full-sized SD card
 //       from left to right when facing the pins down (when connected to a breadboard)
 
-#ifdef SOC_SDMMC_USE_GPIO_MATRIX
+#if defined(SOC_SDMMC_USE_GPIO_MATRIX) && not defined(BOARD_HAS_SDMMC)
     int d1  = 21; // SD pin 8 - add 10k Pullup to 3.3V if using 4-bit mode (use_1_bit_mode = false)
     int d0  = 47; // SD pin 7 - add 10k Pullup
     //     GND pin - SD pin 6
@@ -213,9 +212,6 @@ void setup(){
     Serial.begin(115200);
     while(!Serial) { delay(10); }
     Serial.println("SDMMC_Test.ino starting!");
-    pinMode(12, INPUT);
-    pinMode(10, INPUT);
-    pinMode(9, INPUT);
 
     // If you are using any other ESP32-S3 board than ESP32-S3-USB-OTG which has preset default pins, you will
     //    need to specify the pins with the following example of SD_MMC.setPins()

libraries/SD_MMC/examples/SDMMC_time/SDMMC_time.ino

@@ -1,16 +1,31 @@
 /*
- * Connect the SD card to the following pins:
+ * pin 1 - D2                |  Micro SD card     |
+ * pin 2 - D3                |                   /
+ * pin 3 - CMD               |                  |__
+ * pin 4 - VDD (3.3V)        |                    |
+ * pin 5 - CLK               | 8 7 6 5 4 3 2 1   /
+ * pin 6 - VSS (GND)         | ▄ ▄ ▄ ▄ ▄ ▄ ▄ ▄  /
+ * pin 7 - D0                | ▀ ▀ █ ▀ █ ▀ ▀ ▀ |
+ * pin 8 - D1                |_________________|
+ *                             ║ ║ ║ ║ ║ ║ ║ ║
+ *                     ╔═══════╝ ║ ║ ║ ║ ║ ║ ╚═════════╗
+ *                     ║         ║ ║ ║ ║ ║ ╚══════╗    ║
+ *                     ║   ╔═════╝ ║ ║ ║ ╚═════╗  ║    ║
+ * Connections for     ║   ║   ╔═══╩═║═║═══╗   ║  ║    ║
+ * full-sized          ║   ║   ║   ╔═╝ ║   ║   ║  ║    ║
+ * SD card             ║   ║   ║   ║   ║   ║   ║  ║    ║
+ * ESP32-S3 DevKit  | 21  47  GND  39 3V3 GND  40 41  42  |
+ * ESP32-S3-USB-OTG | 38  37  GND  36 3V3 GND  35 34  33  |
+ * ESP32            |  4   2  GND  14 3V3 GND  15 13  12  |
+ * Pin name         | D1  D0  VSS CLK VDD VSS CMD D3  D2  |
+ * SD pin number    |  8   7   6   5   4   3   2   1   9 /
+ *                  |                                  █/
+ *                  |__▍___▊___█___█___█___█___█___█___/
+ * WARNING: ALL data pins must be pulled up to 3.3V with external 10k Ohm resistor!
+ * Note to ESP32 pin 2 (D0) : add 1K pull up after flashing
  *
- * SD Card | ESP32
- *    D2       -
- *    D3       SS
- *    CMD      MOSI
- *    VSS      GND
- *    VDD      3.3V
- *    CLK      SCK
- *    VSS      GND
- *    D0       MISO
- *    D1       -
+ * For more info see file README.md in this library or on URL:
+ * https://github.com/espressif/arduino-esp32/tree/master/libraries/SD_MMC
  */
 
 #include "FS.h"
@@ -19,12 +34,35 @@
 #include <time.h> 
 #include <WiFi.h>
 
-const char* ssid     = "your-ssid";
-const char* password = "your-password";
+const char* ssid     = "Viks";
+const char* password = "Mordornumber1";
 
 long timezone = 1; 
 byte daysavetime = 1;
 
+// Default pins for ESP-S3
+// Warning: ESP32-S3-WROOM-2 is using most of the default GPIOs (33-37) to interface with on-board OPI flash.
+//   If the SD_MMC is initialized with default pins it will result in rebooting loop - please
+//   reassign the pins elsewhere using the mentioned command `setPins`.
+// Note: ESP32-S3-WROOM-1 does not have GPIO 33 and 34 broken out.
+// Note: The board SP32-S3-USB-OTG has predefined default pins and the following definitions with the setPins() call will not be compiled.
+// Note: Pins in this definition block are ordered from top down in order in which they are on the full-sized SD card
+//       from left to right when facing the pins down (when connected to a breadboard)
+
+#if defined(SOC_SDMMC_USE_GPIO_MATRIX) && not defined(BOARD_HAS_SDMMC)
+    int d1  = 21; // SD pin 8 - add 10k Pullup to 3.3V if using 4-bit mode (use_1_bit_mode = false)
+    int d0  = 47; // SD pin 7 - add 10k Pullup
+    //     GND pin - SD pin 6
+    int clk = 39; // SD pin 5 - add 10k Pullup
+    //    3.3V pin - SD pin 4
+    //     GND pin - SD pin 3
+    int cmd = 40; // SD pin 2 - add 10k Pullup
+    int d3  = 41; // SD pin 1 - add 10k Pullup to card's pin even when using 1-bit mode
+    int d2  = 42; // SD pin 9 - add 10k Pullup to 3.3V if using 4-bit mode (use_1_bit_mode = false)
+#endif
+
+bool use_1_bit_mode = false; // Change the value to `true` to use 1-bit mode instead of the 4-bit mode
+
 void listDir(fs::FS &fs, const char * dirname, uint8_t levels){
     Serial.printf("Listing directory: %s\n", dirname);
 
@@ -164,16 +202,39 @@ void setup(){
     Serial.println("IP address: ");
     Serial.println(WiFi.localIP());
     Serial.println("Contacting Time Server");
-	configTime(3600*timezone, daysavetime*3600, "time.nist.gov", "0.pool.ntp.org", "1.pool.ntp.org");
-	struct tm tmstruct ;
+    configTime(3600*timezone, daysavetime*3600, "time.nist.gov", "0.pool.ntp.org", "1.pool.ntp.org");
+    struct tm tmstruct ;
     delay(2000);
     tmstruct.tm_year = 0;
     getLocalTime(&tmstruct, 5000);
-	Serial.printf("\nNow is : %d-%02d-%02d %02d:%02d:%02d\n",(tmstruct.tm_year)+1900,( tmstruct.tm_mon)+1, tmstruct.tm_mday,tmstruct.tm_hour , tmstruct.tm_min, tmstruct.tm_sec);
+    Serial.printf("\nNow is : %d-%02d-%02d %02d:%02d:%02d\n",(tmstruct.tm_year)+1900,( tmstruct.tm_mon)+1, tmstruct.tm_mday,tmstruct.tm_hour , tmstruct.tm_min, tmstruct.tm_sec);
     Serial.println("");
 
-    if(!SD_MMC.begin()){
-        Serial.println("Card Mount Failed");
+    // If you are using any other ESP32-S3 board than ESP32-S3-USB-OTG which has preset default pins, you will
+    //    need to specify the pins with the following example of SD_MMC.setPins()
+    // If you want to use only 1-bit mode, you can use the line with only one data pin (d0) begin changed.
+    // Please note that ESP32 does not allow pin change and will always fail.
+#if defined(SOC_SDMMC_USE_GPIO_MATRIX) && not defined(BOARD_HAS_SDMMC)
+    //if(! SD_MMC.setPins(clk, cmd, d0)){ // 1-bit line version
+    if(! SD_MMC.setPins(clk, cmd, d0, d1, d2, d3)){ // 4-bit line version
+        Serial.println("Pin change failed!");
+        return;
+    }
+#endif
+
+    if(use_1_bit_mode){
+        Serial.printf("Begin in 1-bit mode; pins: CLK=%d, CMD=%d, D0=%d\n", SD_MMC.getClkPin(), SD_MMC.getCmdPin(), SD_MMC.getD0Pin());
+    }else{
+        Serial.printf("Begin in 4-bit mode; pins: CLK=%d, CMD=%d, D0=%d, D1=%d, D2=%d, D3=%d\n", SD_MMC.getClkPin(), SD_MMC.getCmdPin(), SD_MMC.getD0Pin(), SD_MMC.getD1Pin(), SD_MMC.getD2Pin(), SD_MMC.getD3Pin());
+    }
+
+    if(!SD_MMC.begin("/sdcard", use_1_bit_mode)){
+        Serial.println("Card Mount Failed.");
+        Serial.println("Increase log level to see more info: Tools > Core Debug Level > Verbose");
+        Serial.println("Make sure that all data pins have 10 kOhm pull-up resistor");
+#ifdef SOC_SDMMC_USE_GPIO_MATRIX
+        Serial.println("Make sure that when using generic ESP32-S3 board the pins are setup using SD_MMC.setPins()");
+#endif
         return;
     }
     uint8_t cardType = SD_MMC.cardType();
@@ -203,7 +264,7 @@ void setup(){
     deleteFile(SD_MMC, "/hello.txt");
     writeFile(SD_MMC, "/hello.txt", "Hello ");
     appendFile(SD_MMC, "/hello.txt", "World!\n");
-	listDir(SD_MMC, "/", 0);
+    listDir(SD_MMC, "/", 0);
 }
 
 void loop(){