a
Dependencies: BSP_B-L475E-IOT01
main.cpp
- Committer:
- iandil
- Date:
- 2018-12-06
- Revision:
- 0:c105215e1c51
- Child:
- 1:57a53e16f6e6
File content as of revision 0:c105215e1c51:
#include "mbed.h" #include <stdio.h> #include <errno.h> #include "stm32l475e_iot01_tsensor.h" #include "nvstore.h" // Block devices #if COMPONENT_SPIF #include "SPIFBlockDevice.h" #endif #if COMPONENT_DATAFLASH #include "DataFlashBlockDevice.h" #endif #if COMPONENT_SD #include "SDBlockDevice.h" #endif #include "HeapBlockDevice.h" // File systems #include "LittleFileSystem.h" #include "FATFileSystem.h" EventQueue queue(32 * EVENTS_EVENT_SIZE); Thread thread; Ticker ticker; // Physical block device, can be any device that supports the BlockDevice API /*SPIFBlockDevice bd( MBED_CONF_SPIF_DRIVER_SPI_MOSI, MBED_CONF_SPIF_DRIVER_SPI_MISO, MBED_CONF_SPIF_DRIVER_SPI_CLK, MBED_CONF_SPIF_DRIVER_SPI_CS);*/ #define BLOCK_SIZE 512 HeapBlockDevice bd(16384, BLOCK_SIZE); // File system declaration LittleFileSystem fs("fs"); InterruptIn button(USER_BUTTON); static FILE *file; volatile int counter = 0; void readSensors() { float temperature = 0; temperature = BSP_TSENSOR_ReadTemp(); fprintf(file, "%f\n", temperature); fflush(file); fflush(stdout); printf("Temperature Saved\n"); } void readAndPrintFile() { fflush(stdout); fflush(file); fseek(file, 0, SEEK_SET); float temperature; while(!feof(file)) { fscanf(file, "%f", &temperature); printf("Temperature: %f\n", temperature); } fflush(stdout); } void printData() { queue.call(readAndPrintFile); } void readData() { queue.call(readSensors); } // Entry point for the example int main() { thread.start(callback(&queue, &EventQueue::dispatch_forever)); BSP_TSENSOR_Init(); button.rise(&printData); printf("--- Mbed OS filesystem example ---\n"); // Try to mount the filesystem printf("Mounting the filesystem... "); fflush(stdout); int err = fs.mount(&bd); printf("%s\n", (err ? "Fail :(" : "OK")); if (err) { // Reformat if we can't mount the filesystem // this should only happen on the first boot printf("No filesystem found, formatting... "); fflush(stdout); err = fs.reformat(&bd); printf("%s\n", (err ? "Fail :(" : "OK")); if (err) { error("error: %s (%d)\n", strerror(-err), err); } } // Open the numbers file printf("Opening \"/fs/numbers.txt\"... "); fflush(stdout); file = fopen("/fs/numbers.txt", "r+"); printf("%s\n", (!file ? "Fail :(" : "OK")); if (!file) { // Create the numbers file if it doesn't exist printf("No file found, creating a new file... "); fflush(stdout); file = fopen("/fs/numbers.txt", "w+"); printf("%s\n", (!file ? "Fail :(" : "OK")); if (!file) { error("error: %s (%d)\n", strerror(errno), -errno); } printf("Seeking file... "); fflush(stdout); err = fseek(file, 0, SEEK_SET); printf("%s\n", (err < 0 ? "Fail :(" : "OK")); if (err < 0) { error("error: %s (%d)\n", strerror(errno), -errno); } } ticker.attach(&readData, 4); }