chore(examples): add end() API

Signed-off-by: Frederic Pillon <frederic.pillon@st.com>

examples/CardInfo/CardInfo.ino

@@ -20,15 +20,15 @@
 Sd2Card card;
 SdFatFs fatFs;
 
-void setup()
-{
+void setup() {
   bool disp = false;
   // Open serial communications and wait for port to open:
   Serial.begin(9600);
 
-  while (!Serial);
+  while (!Serial)
+    ;
   Serial.print("\nInitializing SD card...");
-  while(!card.init(SD_DETECT_PIN)) {
+  while (!card.init(SD_DETECT_PIN)) {
     if (!disp) {
       Serial.println("initialization failed. Is a card inserted?");
       disp = true;
@@ -66,9 +66,9 @@ void setup()
   Serial.println(fatFs.fatType(), DEC);
   Serial.println();
 
-  volumesize = fatFs.blocksPerCluster();    // clusters are collections of blocks
-  volumesize *= fatFs.clusterCount();       // we'll have a lot of clusters
-  volumesize *= 512;                        // SD card blocks are always 512 bytes
+  volumesize = fatFs.blocksPerCluster();  // clusters are collections of blocks
+  volumesize *= fatFs.clusterCount();     // we'll have a lot of clusters
+  volumesize *= 512;                      // SD card blocks are always 512 bytes
   Serial.print("Volume size (bytes): ");
   Serial.println(volumesize);
   Serial.print("Volume size (Kbytes): ");
@@ -85,6 +85,13 @@ void setup()
   // list all files in the card with date and size
   root.ls(LS_R | LS_DATE | LS_SIZE);
   root.close();
+  if (!fatFs.deinit()) {
+    Serial.println("Failed to deinit card");
+  }
+  if (!card.deinit()) {
+    Serial.println("Failed to deinit card");
+  }
+
   Serial.println("###### End of the SD tests ######");
 }
 

examples/Datalogger/Datalogger.ino

@@ -18,22 +18,20 @@
 #define SD_DETECT_PIN SD_DETECT_NONE
 #endif
 
-uint32_t A[] = { A0, A1, A2};
+uint32_t A[] = { A0, A1, A2 };
 
 File dataFile;
 
-void setup()
-{
+void setup() {
   // Open serial communications and wait for port to open:
   Serial.begin(9600);
   while (!Serial) {
-    ; // wait for serial port to connect. Needed for Leonardo only
+    ;  // wait for serial port to connect. Needed for Leonardo only
   }
 
   Serial.print("Initializing SD card...");
   // see if the card is present and can be initialized:
-  while (!SD.begin(SD_DETECT_PIN))
-  {
+  while (!SD.begin(SD_DETECT_PIN)) {
     delay(10);
   }
   delay(100);
@@ -52,8 +50,7 @@ void setup()
   }
 }
 
-void loop()
-{
+void loop() {
   // make a string for assembling the data to log:
   String dataString = "";
 
@@ -70,7 +67,7 @@ void loop()
   // if the file is available, write to it:
   if (dataFile) {
     dataFile.println(dataString);
-    dataFile.flush(); // use flush to ensure the data written
+    dataFile.flush();  // use flush to ensure the data written
     // print to the serial port too:
     Serial.println(dataString);
   }

examples/DumpFile/DumpFile.ino

@@ -19,19 +19,17 @@
 #define SD_DETECT_PIN SD_DETECT_NONE
 #endif
 
-void setup()
-{
+void setup() {
   // Open serial communications and wait for port to open:
   Serial.begin(9600);
   while (!Serial) {
-    ; // wait for serial port to connect. Needed for Leonardo only
+    ;  // wait for serial port to connect. Needed for Leonardo only
   }
 
 
   Serial.print("Initializing SD card...");
   // see if the card is present and can be initialized:
-  while (!SD.begin(SD_DETECT_PIN))
-  {
+  while (!SD.begin(SD_DETECT_PIN)) {
     delay(10);
   }
   delay(100);
@@ -52,9 +50,11 @@ void setup()
   else {
     Serial.println("error opening datalog.txt");
   }
+  if (!SD.end()) {
+    Serial.println("Failed to properly end the SD.");
+  }
   Serial.println("###### End of the SD tests ######");
 }
 
-void loop()
-{
+void loop() {
 }

examples/Files/Files.ino

@@ -18,40 +18,37 @@
 
 File myFile;
 
-void setup()
-{
+void setup() {
   // Open serial communications and wait for port to open:
   Serial.begin(9600);
   while (!Serial) {
-    ; // wait for serial port to connect. Needed for Leonardo only
+    ;  // wait for serial port to connect. Needed for Leonardo only
   }
 
 
   Serial.print("Initializing SD card...");
 
-  while (!SD.begin(SD_DETECT_PIN))
-  {
+  while (!SD.begin(SD_DETECT_PIN)) {
     delay(10);
   }
   Serial.println("initialization done.");
 
   if (SD.exists("example.txt")) {
     Serial.println("example.txt exists.");
-  }
-  else {
+  } else {
     Serial.println("example.txt doesn't exist.");
   }
 
   // open a new file and immediately close it:
   Serial.println("Creating example.txt...");
+  Serial.flush();
   myFile = SD.open("example.txt", FILE_WRITE);
   myFile.close();
 
   // Check to see if the file exists:
   if (SD.exists("example.txt")) {
     Serial.println("example.txt exists.");
-  }
-  else {
+  } else {
     Serial.println("example.txt doesn't exist.");
   }
 
@@ -61,14 +58,15 @@ void setup()
 
   if (SD.exists("example.txt")) {
     Serial.println("example.txt exists.");
-  }
-  else {
+  } else {
     Serial.println("example.txt doesn't exist.");
   }
+  if (!SD.end()) {
+    Serial.println("Failed to properly end the SD.");
+  }
   Serial.println("###### End of the SD tests ######");
 }
 
-void loop()
-{
+void loop() {
   // nothing happens after setup finishes.
 }