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library for IZU2022
Dependencies: mbed mpu9250_i2c IM920 BMP180 GPS millis
main.cpp
- Committer:
- ryood
- Date:
- 2016-11-22
- Revision:
- 2:3f286265fade
- Parent:
- 1:690378b5f48a
- Child:
- 3:3ce322ac8193
File content as of revision 2:3f286265fade:
/* * SDFileSystem Binary R/W Test * * Library * SDFileSystem: https://developer.mbed.org/users/neilt6/code/SDFileSystem/ Revision:26 * mbed: Revision: 124 * mbed-rtos: Revision: 117 * * 2016.11.22 created * */ #include "mbed.h" #include "rtos.h" #include "SDFileSystem.h" SPI Spi(PC_12, PC_11, PC_10); // SPI3: mosi, miso, sclk typedef struct { uint8_t x; uint8_t y; uint8_t z; } DataT; void writeSD(DataT* data) { SDFileSystem sd(PC_12, PC_11, PC_10, PA_14, "sd", NC, SDFileSystem::SWITCH_NONE, 25000000); // SPI3: mosi, miso, sclk, cs //Mount the filesystem sd.mount(); //Perform a write test printf("\nWriting binary data to SD card..."); FileHandle* file = sd.open("Test File.bin", O_WRONLY | O_CREAT | O_TRUNC); if (file != NULL) { if (file->write(data, sizeof(*data)) != sizeof(*data)) { error("write error!\n"); } if (file->close()) { printf("failed to close file!\n"); } else { printf("done!\n"); } } else { printf("failed to create file!\n"); } //Unmount the filesystem sd.unmount(); } void readSD(DataT* data) { SDFileSystem sd(PC_12, PC_11, PC_10, PA_14, "sd", NC, SDFileSystem::SWITCH_NONE, 25000000); // SPI3: mosi, miso, sclk, cs //Mount the filesystem sd.mount(); //Perform a read test printf("\nReading binary data from SD card..."); FileHandle* file = sd.open("Test File.bin", O_RDONLY); if (file != NULL) { if (file->read(data, sizeof(*data)) != sizeof(*data)) { error("read error!\n"); } if (file->close()) { printf("failed to close file!\n"); } else { printf("done!\n"); } } else { printf("failed to open file!\n"); } //Unmount the filesystem sd.unmount(); } int main() { DataT data, rdata; data.x = 0xff; data.y = 0x55; data.z = 0xaa; writeSD(&data); readSD(&rdata); printf("data: x:%02x y:%02x z:%02x\n", rdata.x, rdata.y, rdata.z); }