Enter Standby mode then wake up(only restart) by RTC timer
/users/kenjiArai/notebook/standby-mode-current-consumption-on-nucleo-f446re/
IDD Jumper(JP6) | ||||
Mode | Mbed-OS | Board | IDD Current(sleep) | IDD Current(Normal(*1)) |
DeepSleep | 0s5.15.1 | Nucleo-L152RE | 4.23uA | 5mA to 8mA |
^ | 0s6.6.0 | ^ | 4.22uA | 4mA to 7mA |
StandBy | 0s5.15.1 | ^ | 3.90uA | 4mA to 7mA |
^ | 0s6.6.0 | ^ | 3.90uA | 4mA to 7mA |
DeepSleep | 0s5.15.1 | Nucleo-L476RG | 2.13uA | 7mA to 10mA |
^ | 0s6.6.0 | ^ | 2.23uA | 7mA to 10mA |
StandBy | 0s5.15.1 | ^ | -uA(*2) | -mA(*2) |
^ | 0s6.6.0 | ^ | -uA(*2) | -mA(*2) |
DeepSleep | 0s5.15.1 | Nucleo-F411RE | 1.91mA(*3) | 7mA to 10mA |
^ | 0s6.6.0 | ^ | 1.65mA(*3) | 7mA to 10mA |
StandBy | 0s5.15.1 | ^ | 3.35uA | 7mA to 10mA |
^ | 0s6.6.0 | ^ | 3.40uA | 7mA to 9mA |
DeepSleep | 0s5.15.1 | Nucleo-F446RE | 1.67mA(*3) | 14mA to 17mA |
^ | 0s6.6.0 | ^ | 1.76mA(*3) | 14mA to 16mA |
StandBy | 0s5.15.1 | ^ | 3.42uA | 14mA to 17mA |
^ | 0s6.6.0 | ^ | 3.42uA | 14mA to 16mA |
(*1)-> LED1 Blinky every 1sec and change LED1 current
(*2)-> Could NOT make proper program and could NOT measure
(*3)-> NOT uA but mA
All Nucleo boards are stand alone condition(not additional circuit).
Equipment: DMM6500
/users/kenjiArai/code/Check_DeepSleep_os5/
/users/kenjiArai/code/Check_DeepSleep_os6/
/users/kenjiArai/code/Check_StandBy_os5/
/users/kenjiArai/code/Check_StandBy_os6/
main.cpp
- Committer:
- kenjiArai
- Date:
- 2021-01-17
- Revision:
- 5:37c4c47a5546
- Parent:
- 4:bee93f6bae20
File content as of revision 5:37c4c47a5546:
/* * Mbed Application program * Check Standby Mode * * Copyright (c) 2020,'21 Kenji Arai / JH1PJL * http://www7b.biglobe.ne.jp/~kenjia/ * https://os.mbed.com/users/kenjiArai/ * Revised: March 12th, 2020 * Revised: January 17th, 2021 */ /* Reference information: https://forums.mbed.com/t/how-to-deep-sleep/7551 https://os.mbed.com/users/kenjiArai/code/Check_DeepSleep_os5/ https://os.mbed.com/users/kenjiArai/code/Check_StandBy_os5/ DEEP SLEEP MODE (Tested on with mbed-os6.6.0) https://os.mbed.com/users/kenjiArai/code/Check_DeepSleep_os6/ Nucleo-L152RE -> 4.22uA (Normal run = 4mA to 7mA) Nucleo-L476RG -> 2.23uA (Normal run = 7mA to 10mA) Nucleo-F411RE -> 1.65mA (not uA)(Normal run = 7mA to 10mA) Nucleo-F446RE -> 1.76mA (not uA)(Normal run = 14mA to 16mA) STANDBY MODE (Tested on with mbed-os6.6.0) Nucleo-L152RE -> 3.90uA (Normal run = 4mA to 7mA) Nucleo-L476RG -> 0.62uA (Normal run = 7mA to 10mA) Nucleo-F411RE -> 3.40uA (Normal run = 7mA to 9mA) Nucleo-F446RE -> 3.42uA (Normal run = 14mA to 16mA) DISCO-L475VG-IOT01A -> 0.58uA (Normal run = 7mA to 9mA) Current Measurement: Nucleo board has IDD Jumper (JP6). I measured CPU current using Digital Multi-meter DCI mode. */ // Include -------------------------------------------------------------------- #include "mbed.h" #include "WakeUp.h" // Definition ----------------------------------------------------------------- // Constructor ---------------------------------------------------------------- DigitalIn my_sw(USER_BUTTON); #if defined(TARGET_DISCO_L475VG_IOT01A) DigitalOut myled(LED2,0); #else DigitalOut myled(LED1,1); #endif static BufferedSerial pc(USBTX, USBRX, 9600); AnalogIn a_in(A0); Timer t; // RAM ------------------------------------------------------------------------ // ROM / Constant data -------------------------------------------------------- // Function prototypes -------------------------------------------------------- static void time_enter_mode(void); static void chk_and_set_time(char *ptr); static int32_t xatoi (char **str, int32_t *res); static void get_line (char *buff, int32_t len); extern void print_revision(void); //------------------------------------------------------------------------------ // Control Program //------------------------------------------------------------------------------ int main() { time_t seconds; char buf[64]; uint32_t t_pass = 0; uint32_t loop_count = 1; float ain; printf("\r\nCheck current consumption at Standby mode.\r\n"); print_revision(); seconds = time(NULL); while (my_sw == 0) {;} ThisThread::sleep_for(10ms); while (true) { t.reset(); t.start(); if ((my_sw == 0) || (loop_count > 10)) { DigitalIn dmy0(LED1); DigitalIn dmy1(USBTX); DigitalIn dmy2(USBRX); WakeUp::standby_then_reset(20000); while(true) {;} // never executing this line } ain = a_in.read(); myled = !myled; seconds = time(NULL); strftime(buf, 50, "%H:%M:%S -> ", localtime(&seconds)); printf("%s", buf); printf( "analog = %4.3f, processing time=%3d, counter=%4d\r\n", ain, t_pass, loop_count++ ); t_pass = chrono::duration_cast<chrono::milliseconds>( t.elapsed_time()).count(); ThisThread::sleep_for(chrono::milliseconds(1000 - t_pass)); if (pc.readable()) { strftime(buf, 50, " %B %d,'%y, %H:%M:%S\r\n", localtime(&seconds)); printf("[Time] %s\r\n", buf); time_enter_mode(); } } } static void time_enter_mode(void) { char *ptr; char linebuf[64]; if (pc.readable()) { pc.read(linebuf, 1); // dummy read } puts("\r\nSet time into RTC"); puts(" e.g. >21 1 12 13 14 15 -> January 12,'21, 13:14:14"); linebuf[0] = '>'; pc.write(linebuf, 1); ptr = linebuf; get_line(ptr, sizeof(linebuf)); puts("\r"); chk_and_set_time(ptr); } // Change string -> integer static int32_t xatoi(char **str, int32_t *res) { uint32_t val; uint8_t c, radix, s = 0; while ((c = **str) == ' ') (*str)++; if (c == '-') { s = 1; c = *(++(*str)); } if (c == '0') { c = *(++(*str)); if (c <= ' ') { *res = 0; return 1; } if (c == 'x') { radix = 16; c = *(++(*str)); } else { if (c == 'b') { radix = 2; c = *(++(*str)); } else { if ((c >= '0')&&(c <= '9')) { radix = 8; } else { return 0; } } } } else { if ((c < '1')||(c > '9')) { return 0; } radix = 10; } val = 0; while (c > ' ') { if (c >= 'a') c -= 0x20; c -= '0'; if (c >= 17) { c -= 7; if (c <= 9) return 0; } if (c >= radix) return 0; val = val * radix + c; c = *(++(*str)); } if (s) val = -val; *res = val; return 1; } // Get key input data static void get_line(char *buff, int32_t len) { char c; char bf[8]; int32_t idx = 0; for (;;) { pc.read(bf, 1); c = bf[0]; //printf("0x%x \r\n", c); if (c == '\r') { buff[idx++] = c; break; } if ((c == '\b') && idx) { idx--; const char bf_bs[] = {0x1b, '[', '1', 'D', ' ', 0x1b, '[', '1', 'D'}; pc.write(bf_bs, 9); } if (((uint8_t)c >= ' ') && (idx < len - 1)) { buff[idx++] = c; pc.write(bf, 1); } } buff[idx] = 0; bf[0] = '\n'; pc.write(bf, 1); } // Check key input strings and set time static void chk_and_set_time(char *ptr) { int32_t p1; struct tm t; time_t seconds; if (xatoi(&ptr, &p1)) { t.tm_year = (uint8_t)p1 + 100; printf("Year:%d ",p1); xatoi( &ptr, &p1 ); t.tm_mon = (uint8_t)p1 - 1; printf("Month:%d ",p1); xatoi( &ptr, &p1 ); t.tm_mday = (uint8_t)p1; printf("Day:%d ",p1); xatoi( &ptr, &p1 ); t.tm_hour = (uint8_t)p1; printf("Hour:%d ",p1); xatoi( &ptr, &p1 ); t.tm_min = (uint8_t)p1; printf("Min:%d ",p1); xatoi( &ptr, &p1 ); t.tm_sec = (uint8_t)p1; printf("Sec: %d \r\n",p1); } else { return; } seconds = mktime(&t); set_time(seconds); // Show Time with several example // ex.1 printf( "Date: %04d/%02d/%02d, %02d:%02d:%02d\r\n", t.tm_year + 1900, t.tm_mon + 1, t.tm_mday, t.tm_hour, t.tm_min, t.tm_sec ); char buf[64]; // ex.2 strftime(buf, 40, "%x %X", localtime(&seconds)); printf("Date: %s\r\n", buf); // ex.3 strftime(buf, 40, "%I:%M:%S %p (%Y/%m/%d)", localtime(&seconds)); printf("Date: %s\r\n", buf); // ex.4 strftime(buf, 40, "%B %d,'%y, %H:%M:%S", localtime(&seconds)); printf("Date: %s\r\n", buf); }