library for IZU2022
Dependencies: mbed mpu9250_i2c IM920 BMP180 GPS millis
Diff: main.cpp
- Revision:
- 0:effffaacd967
- Child:
- 1:690378b5f48a
diff -r 000000000000 -r effffaacd967 main.cpp --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Tue Nov 22 07:23:12 2016 +0000 @@ -0,0 +1,82 @@ +/* + * 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(); +} \ No newline at end of file