Kenji Arai / Mbed OS Check_external_RTC

check program for EPSON RX-8025NB and STM M41T62 external RTC library

Dependencies:   RX8025NB M41T62

main.cpp@1:0fd657a82160, 2020-08-07 (annotated)

Committer:
kenjiArai
Date:
Fri Aug 07 06:23:26 2020 +0000
Revision:
1:0fd657a82160
Parent:
0:564965644ed2 
updated library

Who changed what in which revision?

UserRevisionLine numberNew contents of line
kenjiArai 0:564965644ed2 1 /*
kenjiArai 0:564965644ed2 2 * mbed Application program
kenjiArai 1:0fd657a82160 3 * External RTC test program for EPSON RX-8025NB and STM M41T62
kenjiArai 0:564965644ed2 4 *
kenjiArai 0:564965644ed2 5 * Copyright (c) 2020 Kenji Arai / JH1PJL
kenjiArai 0:564965644ed2 6 * http://www7b.biglobe.ne.jp/~kenjia/
kenjiArai 0:564965644ed2 7 * https://os.mbed.com/users/kenjiArai/
kenjiArai 0:564965644ed2 8 * Created: August 7th, 2020
kenjiArai 0:564965644ed2 9 * Revised: August 7th, 2020
kenjiArai 0:564965644ed2 10 */
kenjiArai 0:564965644ed2 11
kenjiArai 0:564965644ed2 12 // tested on Nucleo-L476RG board
kenjiArai 0:564965644ed2 13
kenjiArai 0:564965644ed2 14 // Select target RTC ----------------------------------------------------------
kenjiArai 0:564965644ed2 15 //#define CHECK_RX8025
kenjiArai 0:564965644ed2 16 #define CHECK_M41T62
kenjiArai 0:564965644ed2 17
kenjiArai 0:564965644ed2 18 // Include --------------------------------------------------------------------
kenjiArai 0:564965644ed2 19 #include "mbed.h"
kenjiArai 0:564965644ed2 20 #include "redirect_stdio.h"
kenjiArai 0:564965644ed2 21 #if defined(CHECK_RX8025)
kenjiArai 0:564965644ed2 22 # include "RX8025NB.h"
kenjiArai 0:564965644ed2 23 # define RTC_NO 0
kenjiArai 0:564965644ed2 24 #elif defined(CHECK_M41T62)
kenjiArai 0:564965644ed2 25 # include "m41t62_rtc.h"
kenjiArai 0:564965644ed2 26 # define RTC_NO 1
kenjiArai 0:564965644ed2 27 #endif
kenjiArai 0:564965644ed2 28
kenjiArai 0:564965644ed2 29
kenjiArai 0:564965644ed2 30 // Definition -----------------------------------------------------------------
kenjiArai 0:564965644ed2 31 #define PUSHED_SW 0 // Active low
kenjiArai 0:564965644ed2 32
kenjiArai 0:564965644ed2 33 #define SLEEP_TIME 2 // 2 minuts(minimum setting)
kenjiArai 0:564965644ed2 34
kenjiArai 0:564965644ed2 35 // Object ---------------------------------------------------------------------
kenjiArai 0:564965644ed2 36 DigitalIn userSW(USER_BUTTON);
kenjiArai 0:564965644ed2 37 DigitalOut myled(LED1); // Indicate the sampling period
kenjiArai 0:564965644ed2 38 I2C i2c(D14, D15);
kenjiArai 0:564965644ed2 39 #if defined(CHECK_RX8025)
kenjiArai 0:564965644ed2 40 RX8025 ex_rtc(i2c); // EPSON RX-8025NB
kenjiArai 0:564965644ed2 41 DigitalIn rtc_irq(A5, PullUp); // will change to InterruptIn
kenjiArai 0:564965644ed2 42 #elif defined(CHECK_M41T62)
kenjiArai 0:564965644ed2 43 M41T62 ex_rtc(i2c); // STMicro M41T62
kenjiArai 0:564965644ed2 44 DigitalIn rtc_irq(A4, PullUp); // will change to InterruptIn
kenjiArai 0:564965644ed2 45 #endif
kenjiArai 0:564965644ed2 46
kenjiArai 0:564965644ed2 47 // RAM ------------------------------------------------------------------------
kenjiArai 0:564965644ed2 48
kenjiArai 0:564965644ed2 49 // ROM / Constant data --------------------------------------------------------
kenjiArai 0:564965644ed2 50 const char *const msg0 = "Is a time correct? If no, please hit any key. ";
kenjiArai 0:564965644ed2 51 const char *const msg1 = "<Push USER SW then enter the Deep Sleep mode> ";
kenjiArai 0:564965644ed2 52 const char *const rtc_name[2] = {"RX-8025NB", "M41T62"};
kenjiArai 0:564965644ed2 53
kenjiArai 0:564965644ed2 54 // Function prototypes --------------------------------------------------------
kenjiArai 0:564965644ed2 55 static void w_check_rtc_time(void);
kenjiArai 0:564965644ed2 56 static void time_enter_mode(void);
kenjiArai 0:564965644ed2 57 static void chk_and_set_time(char *ptr);
kenjiArai 0:564965644ed2 58 static int32_t xatoi(char **str, int32_t *res);
kenjiArai 0:564965644ed2 59 static void get_line(char *buff, int32_t len);
kenjiArai 0:564965644ed2 60 static void rtc_interrut(void);
kenjiArai 0:564965644ed2 61
kenjiArai 0:564965644ed2 62 extern void print_revision(void);
kenjiArai 0:564965644ed2 63
kenjiArai 0:564965644ed2 64 //------------------------------------------------------------------------------
kenjiArai 0:564965644ed2 65 // Control Program
kenjiArai 0:564965644ed2 66 //------------------------------------------------------------------------------
kenjiArai 0:564965644ed2 67 int main()
kenjiArai 0:564965644ed2 68 {
kenjiArai 0:564965644ed2 69 char buf[64];
kenjiArai 0:564965644ed2 70 time_t seconds;
kenjiArai 0:564965644ed2 71 uint8_t wait_counter = 0;
kenjiArai 0:564965644ed2 72
kenjiArai 0:564965644ed2 73 puts("\r\n\r\nTest Nucleo RTC Function.");
kenjiArai 0:564965644ed2 74 printf("External RTC is %s\r\n", rtc_name[RTC_NO]);
kenjiArai 0:564965644ed2 75 print_revision();
kenjiArai 0:564965644ed2 76 myled = !myled;
kenjiArai 0:564965644ed2 77 ThisThread::sleep_for(100ms);
kenjiArai 0:564965644ed2 78 myled = !myled;
kenjiArai 0:564965644ed2 79 ThisThread::sleep_for(100ms);
kenjiArai 0:564965644ed2 80 // RTC related preparation
kenjiArai 0:564965644ed2 81 //ex_rtc.set_sq_wave(RTC_SQW_NONE);
kenjiArai 0:564965644ed2 82 ex_rtc.clear_IRQ();
kenjiArai 0:564965644ed2 83 w_check_rtc_time();
kenjiArai 0:564965644ed2 84 while(true) {
kenjiArai 0:564965644ed2 85 seconds = time(NULL);
kenjiArai 0:564965644ed2 86 strftime(buf, 50, " %B %d,'%y, %H:%M:%S\r\n", localtime(&seconds));
kenjiArai 0:564965644ed2 87 printf("[Time] %s", buf);
kenjiArai 0:564965644ed2 88 printf("%s", msg0);
kenjiArai 0:564965644ed2 89 printf("%s", msg1);
kenjiArai 0:564965644ed2 90 puts("\r");
kenjiArai 0:564965644ed2 91 wait_counter = 0;
kenjiArai 0:564965644ed2 92 while (seconds == time(NULL)) {
kenjiArai 0:564965644ed2 93 if (readable() == 1) { // Enter time from PC console
kenjiArai 0:564965644ed2 94 getc(); // dummy read
kenjiArai 0:564965644ed2 95 time_enter_mode();
kenjiArai 0:564965644ed2 96 }
kenjiArai 0:564965644ed2 97 if (userSW == PUSHED_SW) { // goto sleep and wake up by RTC timer
kenjiArai 0:564965644ed2 98 while (userSW == PUSHED_SW) {
kenjiArai 0:564965644ed2 99 ThisThread::sleep_for(10ms);
kenjiArai 0:564965644ed2 100 }
kenjiArai 0:564965644ed2 101 printf("Please wait %d minutes to wake-up(Reset).", SLEEP_TIME);
kenjiArai 0:564965644ed2 102 puts(" Entered the deep sleep mode. ");
kenjiArai 0:564965644ed2 103 ThisThread::sleep_for(1s);
kenjiArai 0:564965644ed2 104 myled = 0;
kenjiArai 0:564965644ed2 105 #if defined(CHECK_RX8025)
kenjiArai 0:564965644ed2 106 InterruptIn rtc_irq(A5, PullUp);
kenjiArai 0:564965644ed2 107 #elif defined(CHECK_M41T62)
kenjiArai 0:564965644ed2 108 InterruptIn rtc_irq(A4, PullUp);
kenjiArai 0:564965644ed2 109 #endif
kenjiArai 0:564965644ed2 110 rtc_irq.fall(&rtc_interrut);
kenjiArai 0:564965644ed2 111 ex_rtc.set_next_IRQ(SLEEP_TIME);
kenjiArai 0:564965644ed2 112 ThisThread::sleep_for(1s);
kenjiArai 0:564965644ed2 113 DigitalIn dmy0(LED1);
kenjiArai 0:564965644ed2 114 DigitalIn dmy1(USBTX);
kenjiArai 0:564965644ed2 115 DigitalIn dmy2(USBRX);
kenjiArai 0:564965644ed2 116 ThisThread::sleep_for(10000s); // sleep long time
kenjiArai 0:564965644ed2 117 }
kenjiArai 0:564965644ed2 118 ThisThread::sleep_for(50ms);
kenjiArai 0:564965644ed2 119 if (++wait_counter > (2000 / 50)) {
kenjiArai 0:564965644ed2 120 break;
kenjiArai 0:564965644ed2 121 }
kenjiArai 0:564965644ed2 122 }
kenjiArai 0:564965644ed2 123 // delete previous strings
kenjiArai 0:564965644ed2 124 printf("\033[2A");
kenjiArai 0:564965644ed2 125 puts(""); // null
kenjiArai 0:564965644ed2 126 uint8_t n = strlen(msg0) + strlen(msg1);
kenjiArai 0:564965644ed2 127 memset(buf, ' ', 64);
kenjiArai 0:564965644ed2 128 if (n > 64) {
kenjiArai 0:564965644ed2 129 n -= 64;
kenjiArai 0:564965644ed2 130 puts_wo_cr(buf, 64);
kenjiArai 0:564965644ed2 131 }
kenjiArai 0:564965644ed2 132 if (n > 64) {
kenjiArai 0:564965644ed2 133 puts_wo_cr(buf, 64);
kenjiArai 0:564965644ed2 134 } else {
kenjiArai 0:564965644ed2 135 puts_wo_cr(buf, n);
kenjiArai 0:564965644ed2 136 }
kenjiArai 0:564965644ed2 137 printf("\033[G");
kenjiArai 0:564965644ed2 138 myled = !myled;
kenjiArai 0:564965644ed2 139 }
kenjiArai 0:564965644ed2 140 }
kenjiArai 0:564965644ed2 141
kenjiArai 0:564965644ed2 142 // Check External RTC data
kenjiArai 0:564965644ed2 143 static void w_check_rtc_time(void)
kenjiArai 0:564965644ed2 144 {
kenjiArai 0:564965644ed2 145 time_t seconds_1st, seconds_2nd, diff;
kenjiArai 0:564965644ed2 146 struct tm t;
kenjiArai 0:564965644ed2 147
kenjiArai 0:564965644ed2 148 for (uint32_t i = 0; i < 5; i++) {
kenjiArai 0:564965644ed2 149 ex_rtc.read_rtc_std(&t); // read External RTC data
kenjiArai 0:564965644ed2 150 printf("Year:%d ",t.tm_year);
kenjiArai 0:564965644ed2 151 printf("Month:%d ",t.tm_mon);
kenjiArai 0:564965644ed2 152 printf("Day:%d ",t.tm_mday);
kenjiArai 0:564965644ed2 153 printf("Hour:%d ",t.tm_hour);
kenjiArai 0:564965644ed2 154 printf("Min:%d ",t.tm_min);
kenjiArai 0:564965644ed2 155 printf("Sec: %d \r\n",t.tm_sec);
kenjiArai 0:564965644ed2 156 seconds_1st = mktime(&t);
kenjiArai 0:564965644ed2 157 ex_rtc.read_rtc_std(&t); // read External RTC data again (make sure)
kenjiArai 0:564965644ed2 158 seconds_2nd = mktime(&t);
kenjiArai 0:564965644ed2 159 diff = seconds_2nd - seconds_1st;
kenjiArai 0:564965644ed2 160 if ((diff == 0) || (diff == 1)) {
kenjiArai 0:564965644ed2 161 break;
kenjiArai 0:564965644ed2 162 }
kenjiArai 0:564965644ed2 163 }
kenjiArai 0:564965644ed2 164 set_time(seconds_2nd);
kenjiArai 0:564965644ed2 165 }
kenjiArai 0:564965644ed2 166
kenjiArai 0:564965644ed2 167 // Interrupt for wake up
kenjiArai 0:564965644ed2 168 static void rtc_interrut(void)
kenjiArai 0:564965644ed2 169 {
kenjiArai 0:564965644ed2 170 system_reset(); // restart from RESET condition
kenjiArai 0:564965644ed2 171 }
kenjiArai 0:564965644ed2 172
kenjiArai 0:564965644ed2 173 // Time adjustment
kenjiArai 0:564965644ed2 174 static void time_enter_mode(void)
kenjiArai 0:564965644ed2 175 {
kenjiArai 0:564965644ed2 176 char *ptr;
kenjiArai 0:564965644ed2 177 char linebuf[64];
kenjiArai 0:564965644ed2 178
kenjiArai 0:564965644ed2 179 puts("Set time into RTC.");
kenjiArai 0:564965644ed2 180 puts(" e.g. >20 8 1 12 34 56 -> August 01,'20, 12:34:56");
kenjiArai 0:564965644ed2 181 puts(" If time is fine, just hit enter key.");
kenjiArai 0:564965644ed2 182 putc('>');
kenjiArai 0:564965644ed2 183 ptr = linebuf;
kenjiArai 0:564965644ed2 184 get_line(ptr, sizeof(linebuf));
kenjiArai 0:564965644ed2 185 puts("\r");
kenjiArai 0:564965644ed2 186 chk_and_set_time(ptr);
kenjiArai 0:564965644ed2 187 }
kenjiArai 0:564965644ed2 188
kenjiArai 0:564965644ed2 189 // Change string -> integer
kenjiArai 0:564965644ed2 190 static int32_t xatoi(char **str, int32_t *res)
kenjiArai 0:564965644ed2 191 {
kenjiArai 0:564965644ed2 192 uint32_t val;
kenjiArai 0:564965644ed2 193 uint8_t c, radix, s = 0;
kenjiArai 0:564965644ed2 194
kenjiArai 0:564965644ed2 195 while ((c = **str) == ' ') (*str)++;
kenjiArai 0:564965644ed2 196 if (c == '-') {
kenjiArai 0:564965644ed2 197 s = 1;
kenjiArai 0:564965644ed2 198 c = *(++(*str));
kenjiArai 0:564965644ed2 199 }
kenjiArai 0:564965644ed2 200 if (c == '0') {
kenjiArai 0:564965644ed2 201 c = *(++(*str));
kenjiArai 0:564965644ed2 202 if (c <= ' ') {
kenjiArai 0:564965644ed2 203 *res = 0;
kenjiArai 0:564965644ed2 204 return 1;
kenjiArai 0:564965644ed2 205 }
kenjiArai 0:564965644ed2 206 if (c == 'x') {
kenjiArai 0:564965644ed2 207 radix = 16;
kenjiArai 0:564965644ed2 208 c = *(++(*str));
kenjiArai 0:564965644ed2 209 } else {
kenjiArai 0:564965644ed2 210 if (c == 'b') {
kenjiArai 0:564965644ed2 211 radix = 2;
kenjiArai 0:564965644ed2 212 c = *(++(*str));
kenjiArai 0:564965644ed2 213 } else {
kenjiArai 0:564965644ed2 214 if ((c >= '0')&&(c <= '9')) {
kenjiArai 0:564965644ed2 215 radix = 8;
kenjiArai 0:564965644ed2 216 } else {
kenjiArai 0:564965644ed2 217 return 0;
kenjiArai 0:564965644ed2 218 }
kenjiArai 0:564965644ed2 219 }
kenjiArai 0:564965644ed2 220 }
kenjiArai 0:564965644ed2 221 } else {
kenjiArai 0:564965644ed2 222 if ((c < '1')||(c > '9')) {
kenjiArai 0:564965644ed2 223 return 0;
kenjiArai 0:564965644ed2 224 }
kenjiArai 0:564965644ed2 225 radix = 10;
kenjiArai 0:564965644ed2 226 }
kenjiArai 0:564965644ed2 227 val = 0;
kenjiArai 0:564965644ed2 228 while (c > ' ') {
kenjiArai 0:564965644ed2 229 if (c >= 'a') c -= 0x20;
kenjiArai 0:564965644ed2 230 c -= '0';
kenjiArai 0:564965644ed2 231 if (c >= 17) {
kenjiArai 0:564965644ed2 232 c -= 7;
kenjiArai 0:564965644ed2 233 if (c <= 9) return 0;
kenjiArai 0:564965644ed2 234 }
kenjiArai 0:564965644ed2 235 if (c >= radix) return 0;
kenjiArai 0:564965644ed2 236 val = val * radix + c;
kenjiArai 0:564965644ed2 237 c = *(++(*str));
kenjiArai 0:564965644ed2 238 }
kenjiArai 0:564965644ed2 239 if (s) val = -val;
kenjiArai 0:564965644ed2 240 *res = val;
kenjiArai 0:564965644ed2 241 return 1;
kenjiArai 0:564965644ed2 242 }
kenjiArai 0:564965644ed2 243
kenjiArai 0:564965644ed2 244 // Get key input data
kenjiArai 0:564965644ed2 245 static void get_line(char *buff, int32_t len)
kenjiArai 0:564965644ed2 246 {
kenjiArai 0:564965644ed2 247 char c;
kenjiArai 0:564965644ed2 248 int32_t idx = 0;
kenjiArai 0:564965644ed2 249
kenjiArai 0:564965644ed2 250 for (;;) {
kenjiArai 0:564965644ed2 251 c = getc();
kenjiArai 0:564965644ed2 252 //printf("0x%x \r\n", c);
kenjiArai 0:564965644ed2 253 if ((c == '\r') || (c == '\n')) {
kenjiArai 0:564965644ed2 254 buff[idx++] = '\r';
kenjiArai 0:564965644ed2 255 break;
kenjiArai 0:564965644ed2 256 }
kenjiArai 0:564965644ed2 257 if ((c == '\b') && idx) {
kenjiArai 0:564965644ed2 258 idx--;
kenjiArai 0:564965644ed2 259 const char bf_bs[] =
kenjiArai 0:564965644ed2 260 {0x1b, '[', '1', 'D', ' ', 0x1b, '[', '1', 'D',0};
kenjiArai 0:564965644ed2 261 for(uint32_t i = 0; bf_bs[i] != 0; i++) {
kenjiArai 0:564965644ed2 262 putc(bf_bs[i]);
kenjiArai 0:564965644ed2 263 }
kenjiArai 0:564965644ed2 264 }
kenjiArai 0:564965644ed2 265 if (((uint8_t)c >= ' ') && (idx < len - 1)) {
kenjiArai 0:564965644ed2 266 buff[idx++] = c;
kenjiArai 0:564965644ed2 267 putc(c);
kenjiArai 0:564965644ed2 268 }
kenjiArai 0:564965644ed2 269 }
kenjiArai 0:564965644ed2 270 buff[idx] = 0;
kenjiArai 0:564965644ed2 271 putc('\n');
kenjiArai 0:564965644ed2 272 }
kenjiArai 0:564965644ed2 273
kenjiArai 0:564965644ed2 274 // Check key input strings and set time
kenjiArai 0:564965644ed2 275 static void chk_and_set_time(char *ptr)
kenjiArai 0:564965644ed2 276 {
kenjiArai 0:564965644ed2 277 int32_t p1;
kenjiArai 0:564965644ed2 278 struct tm t;
kenjiArai 0:564965644ed2 279 time_t seconds;
kenjiArai 0:564965644ed2 280
kenjiArai 0:564965644ed2 281 if (xatoi(&ptr, &p1)) {
kenjiArai 0:564965644ed2 282 t.tm_year = (uint8_t)p1 + 100;
kenjiArai 0:564965644ed2 283 printf("Year:%d ",p1);
kenjiArai 0:564965644ed2 284 xatoi( &ptr, &p1 );
kenjiArai 0:564965644ed2 285 t.tm_mon = (uint8_t)p1 - 1;
kenjiArai 0:564965644ed2 286 printf("Month:%d ",p1);
kenjiArai 0:564965644ed2 287 xatoi( &ptr, &p1 );
kenjiArai 0:564965644ed2 288 t.tm_mday = (uint8_t)p1;
kenjiArai 0:564965644ed2 289 printf("Day:%d ",p1);
kenjiArai 0:564965644ed2 290 xatoi( &ptr, &p1 );
kenjiArai 0:564965644ed2 291 t.tm_hour = (uint8_t)p1;
kenjiArai 0:564965644ed2 292 printf("Hour:%d ",p1);
kenjiArai 0:564965644ed2 293 xatoi( &ptr, &p1 );
kenjiArai 0:564965644ed2 294 t.tm_min = (uint8_t)p1;
kenjiArai 0:564965644ed2 295 printf("Min:%d ",p1);
kenjiArai 0:564965644ed2 296 xatoi( &ptr, &p1 );
kenjiArai 0:564965644ed2 297 t.tm_sec = (uint8_t)p1;
kenjiArai 0:564965644ed2 298 printf("Sec: %d \r\n",p1);
kenjiArai 0:564965644ed2 299 seconds = mktime(&t);
kenjiArai 0:564965644ed2 300 set_time(seconds);
kenjiArai 0:564965644ed2 301 } else {
kenjiArai 0:564965644ed2 302 seconds = time(NULL);
kenjiArai 0:564965644ed2 303 }
kenjiArai 0:564965644ed2 304 seconds = time(NULL);
kenjiArai 0:564965644ed2 305 struct tm *time_ajd = localtime(&seconds);
kenjiArai 0:564965644ed2 306 ex_rtc.write_rtc_std(time_ajd);
kenjiArai 0:564965644ed2 307 // Show Time with several example
kenjiArai 0:564965644ed2 308 // ex.1
kenjiArai 0:564965644ed2 309 printf(
kenjiArai 0:564965644ed2 310 "Date: %04d/%02d/%02d, %02d:%02d:%02d\r\n",
kenjiArai 0:564965644ed2 311 t.tm_year + 1900, t.tm_mon + 1, t.tm_mday, t.tm_hour, t.tm_min, t.tm_sec
kenjiArai 0:564965644ed2 312 );
kenjiArai 0:564965644ed2 313 char buf[64];
kenjiArai 0:564965644ed2 314 // ex.2
kenjiArai 0:564965644ed2 315 strftime(buf, 40, "%x %X", localtime(&seconds));
kenjiArai 0:564965644ed2 316 printf("Date: %s\r\n", buf);
kenjiArai 0:564965644ed2 317 // ex.3
kenjiArai 0:564965644ed2 318 strftime(buf, 40, "%I:%M:%S %p (%Y/%m/%d)", localtime(&seconds));
kenjiArai 0:564965644ed2 319 printf("Date: %s\r\n", buf);
kenjiArai 0:564965644ed2 320 // ex.4
kenjiArai 0:564965644ed2 321 strftime(buf, 40, "%B %d,'%y, %H:%M:%S", localtime(&seconds));
kenjiArai 0:564965644ed2 322 printf("Date: %s\r\n", buf);
kenjiArai 0:564965644ed2 323 }