Renesas GR-PEACH OpenCV Development / gr-peach-opencv-project-sd-card_update

SDCard version

Fork of gr-peach-opencv-project-sd-card by the do

SDBlockDevice_GR_PEACH/SDBlockDevice_GR_PEACH.h@167:2ee3e82cb6f5, 2017-07-21 (annotated)

Committer:
thedo
Date:
Fri Jul 21 01:26:54 2017 +0000
Revision:
167:2ee3e82cb6f5
Parent:
166:240bc5a0f42a 
gr-peach-opencv-project-sd-card

Who changed what in which revision?

UserRevisionLine numberNew contents of line
thedo 166:240bc5a0f42a 1 #ifndef MBED_SDFILESYSTEM_GR_PEACH_H
thedo 166:240bc5a0f42a 2 #define MBED_SDFILESYSTEM_GR_PEACH_H
thedo 166:240bc5a0f42a 3
thedo 166:240bc5a0f42a 4 #include "SDBlockDevice.h"
thedo 166:240bc5a0f42a 5
thedo 166:240bc5a0f42a 6 /**
thedo 166:240bc5a0f42a 7 * A class to communicate a SD
thedo 166:240bc5a0f42a 8 */
thedo 166:240bc5a0f42a 9 class SDBlockDevice_GR_PEACH : public SDBlockDevice {
thedo 166:240bc5a0f42a 10 public:
thedo 166:240bc5a0f42a 11
thedo 166:240bc5a0f42a 12 /**
thedo 166:240bc5a0f42a 13 * Constructor
thedo 166:240bc5a0f42a 14 *
thedo 166:240bc5a0f42a 15 * @param rootdir mount name
thedo 166:240bc5a0f42a 16 */
thedo 166:240bc5a0f42a 17 SDBlockDevice_GR_PEACH() : SDBlockDevice(P8_5, P8_6, P8_3, P8_4), _sd_cd(P7_8), _connect(false) {
thedo 166:240bc5a0f42a 18 // Set SPI clock rate to 20MHz for data transfer
thedo 166:240bc5a0f42a 19 _transfer_sck = 20000000;
thedo 166:240bc5a0f42a 20 }
thedo 166:240bc5a0f42a 21
thedo 166:240bc5a0f42a 22 /**
thedo 166:240bc5a0f42a 23 * Check if a SD is connected
thedo 166:240bc5a0f42a 24 *
thedo 166:240bc5a0f42a 25 * @return true if a SD is connected
thedo 166:240bc5a0f42a 26 */
thedo 166:240bc5a0f42a 27 bool connected() {
thedo 166:240bc5a0f42a 28 if (_sd_cd.read() != 0) {
thedo 166:240bc5a0f42a 29 _connect = false;
thedo 166:240bc5a0f42a 30 }
thedo 166:240bc5a0f42a 31 return _connect;
thedo 166:240bc5a0f42a 32 }
thedo 166:240bc5a0f42a 33
thedo 166:240bc5a0f42a 34 /**
thedo 166:240bc5a0f42a 35 * Try to connect to a SD
thedo 166:240bc5a0f42a 36 *
thedo 166:240bc5a0f42a 37 * @return true if connection was successful
thedo 166:240bc5a0f42a 38 */
thedo 166:240bc5a0f42a 39 bool connect() {
thedo 166:240bc5a0f42a 40 if (_sd_cd.read() == 0) {
thedo 166:240bc5a0f42a 41 _connect = true;
thedo 166:240bc5a0f42a 42 } else {
thedo 166:240bc5a0f42a 43 _connect = false;
thedo 166:240bc5a0f42a 44 }
thedo 166:240bc5a0f42a 45 return _connect;
thedo 166:240bc5a0f42a 46 }
thedo 166:240bc5a0f42a 47
thedo 166:240bc5a0f42a 48
thedo 166:240bc5a0f42a 49 private:
thedo 166:240bc5a0f42a 50 DigitalIn _sd_cd;
thedo 166:240bc5a0f42a 51 bool _connect;
thedo 166:240bc5a0f42a 52 };
thedo 166:240bc5a0f42a 53
thedo 166:240bc5a0f42a 54 #endif