Kenji Arai / Mbed OS DISCO-F469NI_USB_Disk

USB Memory Control program for DISCO-F469NI

Dependencies:   FatFs_Mon USBHOST

main.cpp@0:2661952973e6, 2018-04-30 (annotated)

Committer:
kenjiArai
Date:
Mon Apr 30 05:43:40 2018 +0000
Revision:
0:2661952973e6
USB Memory Control program for DISCO-F469NI

Who changed what in which revision?

UserRevisionLine numberNew contents of line
kenjiArai 0:2661952973e6 1 /*
kenjiArai 0:2661952973e6 2 * Mbed Application program
kenjiArai 0:2661952973e6 3 *
kenjiArai 0:2661952973e6 4 * Copyright (c) 2018 Kenji Arai / JH1PJL
kenjiArai 0:2661952973e6 5 * http://www.page.sannet.ne.jp/kenjia/index.html
kenjiArai 0:2661952973e6 6 * http://mbed.org/users/kenjiArai/
kenjiArai 0:2661952973e6 7 * Modify: March 21st, 2018
kenjiArai 0:2661952973e6 8 * Revised: April 30th, 2018
kenjiArai 0:2661952973e6 9 */
kenjiArai 0:2661952973e6 10
kenjiArai 0:2661952973e6 11 // Include --------------------------------------------------------------------
kenjiArai 0:2661952973e6 12 #include "mbed.h"
kenjiArai 0:2661952973e6 13 #include "USBHostMSD.h"
kenjiArai 0:2661952973e6 14 #include "FATFileSystem.h"
kenjiArai 0:2661952973e6 15 #include "mon.h"
kenjiArai 0:2661952973e6 16 #include <stdlib.h>
kenjiArai 0:2661952973e6 17
kenjiArai 0:2661952973e6 18 // Definition -----------------------------------------------------------------
kenjiArai 0:2661952973e6 19
kenjiArai 0:2661952973e6 20 // Object ---------------------------------------------------------------------
kenjiArai 0:2661952973e6 21 DigitalOut led(LED1);
kenjiArai 0:2661952973e6 22 DigitalIn user_sw(USER_BUTTON);
kenjiArai 0:2661952973e6 23 Serial pc(USBTX,USBRX);
kenjiArai 0:2661952973e6 24 USBHostMSD msd;
kenjiArai 0:2661952973e6 25 DigitalOut usb_5v_line(PB_2, 1);
kenjiArai 0:2661952973e6 26
kenjiArai 0:2661952973e6 27 // RAM ------------------------------------------------------------------------
kenjiArai 0:2661952973e6 28 uint8_t usb_memory_status;
kenjiArai 0:2661952973e6 29 time_t seconds;
kenjiArai 0:2661952973e6 30 // ADC
kenjiArai 0:2661952973e6 31 float v5;
kenjiArai 0:2661952973e6 32 float v3r3;
kenjiArai 0:2661952973e6 33
kenjiArai 0:2661952973e6 34 bool running = true;
kenjiArai 0:2661952973e6 35
kenjiArai 0:2661952973e6 36 // ROM / Constant data --------------------------------------------------------
kenjiArai 0:2661952973e6 37 char *const opngmsg =
kenjiArai 0:2661952973e6 38 ""__FILE__ "\r\n"__DATE__ " " __TIME__ " (UTC)\r\n""\r\n";
kenjiArai 0:2661952973e6 39
kenjiArai 0:2661952973e6 40 // Function prototypes --------------------------------------------------------
kenjiArai 0:2661952973e6 41 void save_logging_data(uint8_t flg);
kenjiArai 0:2661952973e6 42 void msd_task(void const *);
kenjiArai 0:2661952973e6 43 void mon(void);
kenjiArai 0:2661952973e6 44
kenjiArai 0:2661952973e6 45 //------------------------------------------------------------------------------
kenjiArai 0:2661952973e6 46 // Control Program
kenjiArai 0:2661952973e6 47 //------------------------------------------------------------------------------
kenjiArai 0:2661952973e6 48 int main()
kenjiArai 0:2661952973e6 49 {
kenjiArai 0:2661952973e6 50 pc.puts(opngmsg);
kenjiArai 0:2661952973e6 51 Thread msdTask(msd_task, NULL, osPriorityNormal, 1024 * 4);
kenjiArai 0:2661952973e6 52 while(true) {
kenjiArai 0:2661952973e6 53 led=!led;
kenjiArai 0:2661952973e6 54 Thread::wait(500);
kenjiArai 0:2661952973e6 55 if (running == false) {
kenjiArai 0:2661952973e6 56 mon();
kenjiArai 0:2661952973e6 57 NVIC_SystemReset();
kenjiArai 0:2661952973e6 58 }
kenjiArai 0:2661952973e6 59 }
kenjiArai 0:2661952973e6 60 }
kenjiArai 0:2661952973e6 61
kenjiArai 0:2661952973e6 62 void msd_task(void const *)
kenjiArai 0:2661952973e6 63 {
kenjiArai 0:2661952973e6 64 int i = 0;
kenjiArai 0:2661952973e6 65 FATFileSystem fs("usb");
kenjiArai 0:2661952973e6 66 int err;
kenjiArai 0:2661952973e6 67
kenjiArai 0:2661952973e6 68 pc.printf("wait for usb memory stick insertion\r\n");
kenjiArai 0:2661952973e6 69 while(1) {
kenjiArai 0:2661952973e6 70
kenjiArai 0:2661952973e6 71 // try to connect a MSD device
kenjiArai 0:2661952973e6 72 while(!msd.connect()) {
kenjiArai 0:2661952973e6 73 Thread::wait(500);
kenjiArai 0:2661952973e6 74 }
kenjiArai 0:2661952973e6 75 if (fs.mount(&msd) != 0) {
kenjiArai 0:2661952973e6 76 continue;
kenjiArai 0:2661952973e6 77 } else {
kenjiArai 0:2661952973e6 78 pc.printf("file system mounted\r\n");
kenjiArai 0:2661952973e6 79 }
kenjiArai 0:2661952973e6 80 if (!msd.connect()) {
kenjiArai 0:2661952973e6 81 continue;
kenjiArai 0:2661952973e6 82 }
kenjiArai 0:2661952973e6 83 running = true;
kenjiArai 0:2661952973e6 84 // if device disconnected, try to connect again
kenjiArai 0:2661952973e6 85 while (msd.connected()) {
kenjiArai 0:2661952973e6 86 save_logging_data(1);
kenjiArai 0:2661952973e6 87 if (user_sw == 1) {
kenjiArai 0:2661952973e6 88 break;
kenjiArai 0:2661952973e6 89 }
kenjiArai 0:2661952973e6 90 if (pc.readable()) {
kenjiArai 0:2661952973e6 91 char c = pc.getc(); // dummy read
kenjiArai 0:2661952973e6 92 mon();
kenjiArai 0:2661952973e6 93 }
kenjiArai 0:2661952973e6 94 Thread::wait(500);
kenjiArai 0:2661952973e6 95 }
kenjiArai 0:2661952973e6 96 running = false;
kenjiArai 0:2661952973e6 97 while (msd.connected()) {
kenjiArai 0:2661952973e6 98 Thread::wait(500);
kenjiArai 0:2661952973e6 99 }
kenjiArai 0:2661952973e6 100 while (fs.unmount() < 0) {
kenjiArai 0:2661952973e6 101 Thread::wait(500);
kenjiArai 0:2661952973e6 102 pc.printf("unmount\r\n");
kenjiArai 0:2661952973e6 103 }
kenjiArai 0:2661952973e6 104 }
kenjiArai 0:2661952973e6 105 }
kenjiArai 0:2661952973e6 106
kenjiArai 0:2661952973e6 107 // Save several data into the USB Memory
kenjiArai 0:2661952973e6 108 void save_logging_data(uint8_t flg)
kenjiArai 0:2661952973e6 109 {
kenjiArai 0:2661952973e6 110 char buf[64]; // data buffer for text
kenjiArai 0:2661952973e6 111 FILE *fp;
kenjiArai 0:2661952973e6 112
kenjiArai 0:2661952973e6 113 if (!msd.connect()) {
kenjiArai 0:2661952973e6 114 error("USB Flash drive not found.\r\n");
kenjiArai 0:2661952973e6 115 usb_memory_status = 1;
kenjiArai 0:2661952973e6 116 }
kenjiArai 0:2661952973e6 117 fp = fopen("/usb/mydata.txt", "a");
kenjiArai 0:2661952973e6 118 if (flg) {
kenjiArai 0:2661952973e6 119 pc.printf("/usb/mydata.txt\r\n");
kenjiArai 0:2661952973e6 120 }
kenjiArai 0:2661952973e6 121 if(fp == NULL) {
kenjiArai 0:2661952973e6 122 usb_memory_status = 1;
kenjiArai 0:2661952973e6 123 if (flg) {
kenjiArai 0:2661952973e6 124 pc.printf( "\r\n Could not open file for write\r\n");
kenjiArai 0:2661952973e6 125 }
kenjiArai 0:2661952973e6 126 }
kenjiArai 0:2661952973e6 127 for (int i = 0; 16 > i; i++) {
kenjiArai 0:2661952973e6 128 uint32_t size = get_disk_freespace();
kenjiArai 0:2661952973e6 129 pc.printf("free %u kB, ", size);
kenjiArai 0:2661952973e6 130 //v3r3 = VREF_VOLT / a_vref.read();
kenjiArai 0:2661952973e6 131 v3r3 = 3.321f;
kenjiArai 0:2661952973e6 132 //v5 = a_5v.read() * v3r3 * FCT_V5;
kenjiArai 0:2661952973e6 133 v5 = 5.012f;
kenjiArai 0:2661952973e6 134 sprintf(buf, "$DATA0,");
kenjiArai 0:2661952973e6 135 fprintf(fp,buf);
kenjiArai 0:2661952973e6 136 // RTC
kenjiArai 0:2661952973e6 137 seconds = time(NULL);
kenjiArai 0:2661952973e6 138 strftime(buf, 64, "RTC,%H:%M:%S,%Y/%m/%d,", localtime(&seconds));
kenjiArai 0:2661952973e6 139 if (flg) {
kenjiArai 0:2661952973e6 140 pc.printf("%s", buf);
kenjiArai 0:2661952973e6 141 }
kenjiArai 0:2661952973e6 142 fprintf(fp,buf);
kenjiArai 0:2661952973e6 143 // Write speration ',' into the file
kenjiArai 0:2661952973e6 144 // 123456789012345678901234567890
kenjiArai 0:2661952973e6 145 sprintf(buf, ",,,,,,,,,,,,,,,,,,,,,,,,,,,,");
kenjiArai 0:2661952973e6 146 fprintf(fp,buf);
kenjiArai 0:2661952973e6 147 // Write data into the file
kenjiArai 0:2661952973e6 148 sprintf(buf, "5V,%6.3f,V3R3,%6.3f,", v5, v3r3);
kenjiArai 0:2661952973e6 149 fprintf(fp,buf);
kenjiArai 0:2661952973e6 150 if (flg) {
kenjiArai 0:2661952973e6 151 pc.printf("Volt, %s", buf);
kenjiArai 0:2661952973e6 152 }
kenjiArai 0:2661952973e6 153 sprintf(buf, "GPS,%d,USB,%d,CAM,%d,CNT,%04d\r\n",
kenjiArai 0:2661952973e6 154 0, usb_memory_status, 1, i);
kenjiArai 0:2661952973e6 155 fprintf(fp,buf);
kenjiArai 0:2661952973e6 156 fprintf(fp,buf);
kenjiArai 0:2661952973e6 157 if (flg) {
kenjiArai 0:2661952973e6 158 pc.printf("%s", buf);
kenjiArai 0:2661952973e6 159 }
kenjiArai 0:2661952973e6 160 }
kenjiArai 0:2661952973e6 161 fclose(fp);
kenjiArai 0:2661952973e6 162 if (flg) {
kenjiArai 0:2661952973e6 163 pc.printf("\r\n");
kenjiArai 0:2661952973e6 164 }
kenjiArai 0:2661952973e6 165 }
kenjiArai 0:2661952973e6 166