Diff: SDBlockDevice_GR_PEACH.h

Revision:

0:4bc3a3f17825

Child:

1:98b088c91edd

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/SDBlockDevice_GR_PEACH.h	Thu Mar 16 05:55:07 2017 +0000
@@ -0,0 +1,55 @@
+#ifndef MBED_SDFILESYSTEM_GR_PEACH_H
+#define MBED_SDFILESYSTEM_GR_PEACH_H
+
+#include "SDBlockDevice.h"
+
+/**
+ * A class to communicate a SD
+ */
+class SDBlockDevice_GR_PEACH : public SDBlockDevice {
+public:
+
+    /**
+    * Constructor
+    *
+    * @param rootdir mount name
+    */
+    SDBlockDevice_GR_PEACH() : SDBlockDevice(P8_5, P8_6, P8_3, P8_4), _sd_cd(P7_8), _connect(false) {
+        // Set SPI clock rate to 20MHz for data transfer
+        // It is necessary to change "private" of "SDBlockDevice.h" to "pretected".
+//        _transfer_sck = 20000000;
+    }
+
+    /**
+    * Check if a SD is connected
+    *
+    * @return true if a SD is connected
+    */
+    bool connected() {
+        if (_sd_cd.read() != 0) {
+            _connect = false;
+        }
+        return _connect;
+    }
+
+    /**
+     * Try to connect to a SD
+     *
+     * @return true if connection was successful
+     */
+    bool connect() {
+        if (_sd_cd.read() == 0) {
+            _connect = true;
+        } else {
+            _connect = false;
+        }
+        return _connect;
+    }
+
+
+private:
+    DigitalIn   _sd_cd;
+    bool        _connect;
+};
+
+#endif