Luigi Frunzio / Mbed OS TemperatureButtonFile

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Dependencies:   IOTAtelier1819-FileSystem BSP_B-L475E-IOT01

main.cpp@27:e6be7f9b9e9f, 2018-12-06 (annotated)

Committer:
frunzl
Date:
Thu Dec 06 12:14:07 2018 +0000
Revision:
27:e6be7f9b9e9f
Parent:
26:130bb1173866 
temperature

Who changed what in which revision?

UserRevisionLine numberNew contents of line
lmottola 26:130bb1173866 1
mbed_official 0:8e251d9511b8 2 #include "mbed.h"
mbed_official 0:8e251d9511b8 3 #include <stdio.h>
mbed_official 0:8e251d9511b8 4 #include <errno.h>
mbed_official 0:8e251d9511b8 5
mbed_official 0:8e251d9511b8 6 // Block devices
mbed_official 25:65a9183a2178 7 #if COMPONENT_SPIF
mbed_official 0:8e251d9511b8 8 #include "SPIFBlockDevice.h"
mbed_official 25:65a9183a2178 9 #endif
mbed_official 25:65a9183a2178 10
mbed_official 25:65a9183a2178 11 #if COMPONENT_DATAFLASH
mbed_official 1:2bfc377bcc2a 12 #include "DataFlashBlockDevice.h"
mbed_official 25:65a9183a2178 13 #endif
mbed_official 25:65a9183a2178 14
mbed_official 25:65a9183a2178 15 #if COMPONENT_SD
mbed_official 0:8e251d9511b8 16 #include "SDBlockDevice.h"
mbed_official 25:65a9183a2178 17 #endif
mbed_official 25:65a9183a2178 18
mbed_official 0:8e251d9511b8 19 #include "HeapBlockDevice.h"
mbed_official 0:8e251d9511b8 20
mbed_official 0:8e251d9511b8 21 // File systems
mbed_official 0:8e251d9511b8 22 #include "LittleFileSystem.h"
mbed_official 0:8e251d9511b8 23 #include "FATFileSystem.h"
frunzl 27:e6be7f9b9e9f 24 #include "stm32l475e_iot01_tsensor.h"
mbed_official 0:8e251d9511b8 25
mbed_official 0:8e251d9511b8 26 // Physical block device, can be any device that supports the BlockDevice API
lmottola 26:130bb1173866 27 /*SPIFBlockDevice bd(
mbed_official 0:8e251d9511b8 28 MBED_CONF_SPIF_DRIVER_SPI_MOSI,
mbed_official 0:8e251d9511b8 29 MBED_CONF_SPIF_DRIVER_SPI_MISO,
mbed_official 0:8e251d9511b8 30 MBED_CONF_SPIF_DRIVER_SPI_CLK,
lmottola 26:130bb1173866 31 MBED_CONF_SPIF_DRIVER_SPI_CS);*/
frunzl 27:e6be7f9b9e9f 32
frunzl 27:e6be7f9b9e9f 33 InterruptIn button(USER_BUTTON);
frunzl 27:e6be7f9b9e9f 34 Ticker toggle_led_ticker;
frunzl 27:e6be7f9b9e9f 35
frunzl 27:e6be7f9b9e9f 36 EventQueue queue(32 * EVENTS_EVENT_SIZE);
frunzl 27:e6be7f9b9e9f 37 Thread t;
lmottola 26:130bb1173866 38
lmottola 26:130bb1173866 39 #define BLOCK_SIZE 512
frunzl 27:e6be7f9b9e9f 40 HeapBlockDevice bd(16384, BLOCK_SIZE);
mbed_official 0:8e251d9511b8 41
mbed_official 0:8e251d9511b8 42 // File system declaration
mbed_official 0:8e251d9511b8 43 LittleFileSystem fs("fs");
mbed_official 0:8e251d9511b8 44
frunzl 27:e6be7f9b9e9f 45 static FILE *f;
frunzl 27:e6be7f9b9e9f 46 volatile int counter = 0;
mbed_official 0:8e251d9511b8 47
frunzl 27:e6be7f9b9e9f 48 void get_data_from_sensors() {
frunzl 27:e6be7f9b9e9f 49 float sensor_value=0;
frunzl 27:e6be7f9b9e9f 50 sensor_value = BSP_TSENSOR_ReadTemp();
frunzl 27:e6be7f9b9e9f 51 fprintf(f, "%f\n", sensor_value);
frunzl 27:e6be7f9b9e9f 52 fflush(f);
mbed_official 0:8e251d9511b8 53 fflush(stdout);
frunzl 27:e6be7f9b9e9f 54 printf("Saving temperature...\n");
mbed_official 0:8e251d9511b8 55 }
mbed_official 0:8e251d9511b8 56
frunzl 27:e6be7f9b9e9f 57 void print_data_from_file() {
frunzl 27:e6be7f9b9e9f 58 fflush(stdout);
frunzl 27:e6be7f9b9e9f 59 fflush(f);
frunzl 27:e6be7f9b9e9f 60 fseek(f, 0, SEEK_SET);
frunzl 27:e6be7f9b9e9f 61 float value;
frunzl 27:e6be7f9b9e9f 62 while (!feof(f)) {
frunzl 27:e6be7f9b9e9f 63 fscanf(f, "%f", &value);
frunzl 27:e6be7f9b9e9f 64 printf("%f\n", value);
frunzl 27:e6be7f9b9e9f 65 }
frunzl 27:e6be7f9b9e9f 66 fflush(stdout);
frunzl 27:e6be7f9b9e9f 67 }
frunzl 27:e6be7f9b9e9f 68
frunzl 27:e6be7f9b9e9f 69 void toggle() {
frunzl 27:e6be7f9b9e9f 70 queue.call(print_data_from_file);
frunzl 27:e6be7f9b9e9f 71 }
frunzl 27:e6be7f9b9e9f 72
frunzl 27:e6be7f9b9e9f 73 void toggle_led() {
frunzl 27:e6be7f9b9e9f 74 queue.call(get_data_from_sensors);
frunzl 27:e6be7f9b9e9f 75 }
mbed_official 0:8e251d9511b8 76
mbed_official 0:8e251d9511b8 77 // Entry point for the example
mbed_official 0:8e251d9511b8 78 int main() {
frunzl 27:e6be7f9b9e9f 79 t.start(callback(&queue, &EventQueue::dispatch_forever));
frunzl 27:e6be7f9b9e9f 80 BSP_TSENSOR_Init();
frunzl 27:e6be7f9b9e9f 81 button.rise(&toggle);
frunzl 27:e6be7f9b9e9f 82
mbed_official 0:8e251d9511b8 83 printf("--- Mbed OS filesystem example ---\n");
mbed_official 0:8e251d9511b8 84
mbed_official 0:8e251d9511b8 85 // Try to mount the filesystem
mbed_official 0:8e251d9511b8 86 printf("Mounting the filesystem... ");
mbed_official 0:8e251d9511b8 87 fflush(stdout);
mbed_official 0:8e251d9511b8 88 int err = fs.mount(&bd);
mbed_official 0:8e251d9511b8 89 printf("%s\n", (err ? "Fail :(" : "OK"));
mbed_official 0:8e251d9511b8 90 if (err) {
mbed_official 0:8e251d9511b8 91 // Reformat if we can't mount the filesystem
mbed_official 0:8e251d9511b8 92 // this should only happen on the first boot
mbed_official 0:8e251d9511b8 93 printf("No filesystem found, formatting... ");
mbed_official 0:8e251d9511b8 94 fflush(stdout);
mbed_official 0:8e251d9511b8 95 err = fs.reformat(&bd);
mbed_official 0:8e251d9511b8 96 printf("%s\n", (err ? "Fail :(" : "OK"));
mbed_official 0:8e251d9511b8 97 if (err) {
mbed_official 0:8e251d9511b8 98 error("error: %s (%d)\n", strerror(-err), err);
mbed_official 0:8e251d9511b8 99 }
mbed_official 0:8e251d9511b8 100 }
mbed_official 0:8e251d9511b8 101
mbed_official 0:8e251d9511b8 102 // Open the numbers file
mbed_official 0:8e251d9511b8 103 printf("Opening \"/fs/numbers.txt\"... ");
mbed_official 0:8e251d9511b8 104 fflush(stdout);
frunzl 27:e6be7f9b9e9f 105 f = fopen("/fs/numbers.txt", "r +");
mbed_official 0:8e251d9511b8 106 printf("%s\n", (!f ? "Fail :(" : "OK"));
mbed_official 0:8e251d9511b8 107 if (!f) {
mbed_official 0:8e251d9511b8 108 // Create the numbers file if it doesn't exist
mbed_official 0:8e251d9511b8 109 printf("No file found, creating a new file... ");
mbed_official 0:8e251d9511b8 110 fflush(stdout);
mbed_official 0:8e251d9511b8 111 f = fopen("/fs/numbers.txt", "w+");
mbed_official 0:8e251d9511b8 112 printf("%s\n", (!f ? "Fail :(" : "OK"));
mbed_official 0:8e251d9511b8 113 if (!f) {
mbed_official 0:8e251d9511b8 114 error("error: %s (%d)\n", strerror(errno), -errno);
mbed_official 0:8e251d9511b8 115 }
mbed_official 0:8e251d9511b8 116
mbed_official 0:8e251d9511b8 117 printf("Seeking file... ");
mbed_official 0:8e251d9511b8 118 fflush(stdout);
mbed_official 0:8e251d9511b8 119 err = fseek(f, 0, SEEK_SET);
mbed_official 0:8e251d9511b8 120 printf("%s\n", (err < 0 ? "Fail :(" : "OK"));
mbed_official 0:8e251d9511b8 121 if (err < 0) {
mbed_official 0:8e251d9511b8 122 error("error: %s (%d)\n", strerror(errno), -errno);
mbed_official 0:8e251d9511b8 123 }
mbed_official 0:8e251d9511b8 124 }
mbed_official 0:8e251d9511b8 125
frunzl 27:e6be7f9b9e9f 126 // Go through and record the acc
frunzl 27:e6be7f9b9e9f 127 toggle_led_ticker.attach(&toggle_led, 60);
mbed_official 0:8e251d9511b8 128
mbed_official 0:8e251d9511b8 129 }
mbed_official 0:8e251d9511b8 130