mbed OS SDCard Driver for GR-PEACH.

Dependencies:   sd-driver-hs

Dependents:   mbed-os-storage-access GR-PEACH_Digital_Signage GR-PEACH-mbed-os-storage-access

You can access it faster than using sd-driver as it is.

Revision:
1:98b088c91edd
Parent:
0:4bc3a3f17825
--- a/SDBlockDevice_GR_PEACH.h	Thu Mar 16 05:55:07 2017 +0000
+++ b/SDBlockDevice_GR_PEACH.h	Thu Mar 23 08:34:43 2017 +0000
@@ -16,8 +16,7 @@
     */
     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;
+        _transfer_sck = 20000000;
     }
 
     /**