Daiki Kato / SDBlockDevice_GR_PEACH

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.

SDBlockDevice_GR_PEACH.h@0:4bc3a3f17825, 2017-03-16 (annotated)

Committer:
dkato
Date:
Thu Mar 16 05:55:07 2017 +0000
Revision:
0:4bc3a3f17825
Child:
1:98b088c91edd
first commit

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dkato 0:4bc3a3f17825 1 #ifndef MBED_SDFILESYSTEM_GR_PEACH_H
dkato 0:4bc3a3f17825 2 #define MBED_SDFILESYSTEM_GR_PEACH_H
dkato 0:4bc3a3f17825 3
dkato 0:4bc3a3f17825 4 #include "SDBlockDevice.h"
dkato 0:4bc3a3f17825 5
dkato 0:4bc3a3f17825 6 /**
dkato 0:4bc3a3f17825 7 * A class to communicate a SD
dkato 0:4bc3a3f17825 8 */
dkato 0:4bc3a3f17825 9 class SDBlockDevice_GR_PEACH : public SDBlockDevice {
dkato 0:4bc3a3f17825 10 public:
dkato 0:4bc3a3f17825 11
dkato 0:4bc3a3f17825 12 /**
dkato 0:4bc3a3f17825 13 * Constructor
dkato 0:4bc3a3f17825 14 *
dkato 0:4bc3a3f17825 15 * @param rootdir mount name
dkato 0:4bc3a3f17825 16 */
dkato 0:4bc3a3f17825 17 SDBlockDevice_GR_PEACH() : SDBlockDevice(P8_5, P8_6, P8_3, P8_4), _sd_cd(P7_8), _connect(false) {
dkato 0:4bc3a3f17825 18 // Set SPI clock rate to 20MHz for data transfer
dkato 0:4bc3a3f17825 19 // It is necessary to change "private" of "SDBlockDevice.h" to "pretected".
dkato 0:4bc3a3f17825 20 // _transfer_sck = 20000000;
dkato 0:4bc3a3f17825 21 }
dkato 0:4bc3a3f17825 22
dkato 0:4bc3a3f17825 23 /**
dkato 0:4bc3a3f17825 24 * Check if a SD is connected
dkato 0:4bc3a3f17825 25 *
dkato 0:4bc3a3f17825 26 * @return true if a SD is connected
dkato 0:4bc3a3f17825 27 */
dkato 0:4bc3a3f17825 28 bool connected() {
dkato 0:4bc3a3f17825 29 if (_sd_cd.read() != 0) {
dkato 0:4bc3a3f17825 30 _connect = false;
dkato 0:4bc3a3f17825 31 }
dkato 0:4bc3a3f17825 32 return _connect;
dkato 0:4bc3a3f17825 33 }
dkato 0:4bc3a3f17825 34
dkato 0:4bc3a3f17825 35 /**
dkato 0:4bc3a3f17825 36 * Try to connect to a SD
dkato 0:4bc3a3f17825 37 *
dkato 0:4bc3a3f17825 38 * @return true if connection was successful
dkato 0:4bc3a3f17825 39 */
dkato 0:4bc3a3f17825 40 bool connect() {
dkato 0:4bc3a3f17825 41 if (_sd_cd.read() == 0) {
dkato 0:4bc3a3f17825 42 _connect = true;
dkato 0:4bc3a3f17825 43 } else {
dkato 0:4bc3a3f17825 44 _connect = false;
dkato 0:4bc3a3f17825 45 }
dkato 0:4bc3a3f17825 46 return _connect;
dkato 0:4bc3a3f17825 47 }
dkato 0:4bc3a3f17825 48
dkato 0:4bc3a3f17825 49
dkato 0:4bc3a3f17825 50 private:
dkato 0:4bc3a3f17825 51 DigitalIn _sd_cd;
dkato 0:4bc3a3f17825 52 bool _connect;
dkato 0:4bc3a3f17825 53 };
dkato 0:4bc3a3f17825 54
dkato 0:4bc3a3f17825 55 #endif