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library for IZU2022
Dependencies: mbed mpu9250_i2c IM920 BMP180 GPS millis
main.cpp
- Committer:
- ryood
- Date:
- 2016-11-22
- Revision:
- 0:effffaacd967
- Child:
- 1:690378b5f48a
File content as of revision 0:effffaacd967:
/* * SDFileSystem Binary R/W Test * * Library * SDFileSystem: https://developer.mbed.org/users/neilt6/code/SDFileSystem/ Revision:26 * mbed: Revision: 124 * * 2016.11.22 created * */ #include "mbed.h" #include "SDFileSystem.h" SDFileSystem sd(D11, D12, D13, D10, "sd", NC, SDFileSystem::SWITCH_NONE, 25000000); struct { uint8_t x; uint8_t y; uint8_t z; } data, rdata; int main() { FileHandle* file; data.x = 0xff; data.y = 0x55; data.z = 0xaa; //Mount the filesystem sd.mount(); //Perform a write test printf("\nWriting binary data to SD card..."); 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"); } //Perform a read test printf("\nReading binary data from SD card..."); file = sd.open("Test File.bin", O_RDONLY); if (file != NULL) { if (file->read(&rdata, sizeof(rdata)) != sizeof(rdata)) { error("read error!\n"); } if (file->close()) { printf("failed to close file!\n"); } else { printf("done! x:%02x y:%02x z:%02x\n", rdata.x, rdata.y, rdata.z); } } else { printf("failed to open file!\n"); } //Unmount the filesystem sd.unmount(); }