Support MJPEG Video
Fork of SDBlockDevice_GR_PEACH by
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