Pat Thoyts / Mbed 2 deprecated nucleoBlink

Simple test of two speed flashing LED toggled by button press with output to the serial monitor and monitoring time using the onboard RTC.

Dependencies:   mbed

nucleoBlink.cpp@0:cde87f156401, 2014-03-04 (annotated)

Committer:
patthoyts
Date:
Tue Mar 04 13:18:29 2014 +0000
Revision:
0:cde87f156401
Initial version testing programming the Nucleo F401 from Windows and Linux.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
patthoyts 0:cde87f156401 1 #include "mbed.h"
patthoyts 0:cde87f156401 2
patthoyts 0:cde87f156401 3 DigitalOut led(LED1);
patthoyts 0:cde87f156401 4 InterruptIn btn(USER_BUTTON);
patthoyts 0:cde87f156401 5 Serial serial(SERIAL_TX, SERIAL_RX);
patthoyts 0:cde87f156401 6
patthoyts 0:cde87f156401 7 enum {DELAY_SLOW = 500000, DELAY_FAST = 100000, DELAY_FLASH=50000 };
patthoyts 0:cde87f156401 8 long delay = DELAY_FAST;
patthoyts 0:cde87f156401 9 bool pressed = false;
patthoyts 0:cde87f156401 10 long counter = 0;
patthoyts 0:cde87f156401 11
patthoyts 0:cde87f156401 12 static void flash()
patthoyts 0:cde87f156401 13 {
patthoyts 0:cde87f156401 14 for (int n = 0; n < 12; ++n) {
patthoyts 0:cde87f156401 15 led = !led;
patthoyts 0:cde87f156401 16 wait_us(DELAY_FLASH);
patthoyts 0:cde87f156401 17 }
patthoyts 0:cde87f156401 18 }
patthoyts 0:cde87f156401 19 static void onButtonPress()
patthoyts 0:cde87f156401 20 {
patthoyts 0:cde87f156401 21 delay = (delay == DELAY_SLOW) ? DELAY_FAST : DELAY_SLOW;
patthoyts 0:cde87f156401 22 pressed = true;
patthoyts 0:cde87f156401 23 }
patthoyts 0:cde87f156401 24 int
patthoyts 0:cde87f156401 25 main()
patthoyts 0:cde87f156401 26 {
patthoyts 0:cde87f156401 27 serial.baud(115200);
patthoyts 0:cde87f156401 28 btn.fall(&onButtonPress);
patthoyts 0:cde87f156401 29 flash();
patthoyts 0:cde87f156401 30 set_time(1393936792); // set the onboard RTC
patthoyts 0:cde87f156401 31 printf("MBED Nucleo Blink Test (v1.0)\n");
patthoyts 0:cde87f156401 32 while (true)
patthoyts 0:cde87f156401 33 {
patthoyts 0:cde87f156401 34 led = !led;
patthoyts 0:cde87f156401 35 ++counter;
patthoyts 0:cde87f156401 36 if ((counter % 10) == 0) {
patthoyts 0:cde87f156401 37 time_t seconds = time(NULL);
patthoyts 0:cde87f156401 38 printf("%d %d %s", counter, seconds, ctime(&seconds));
patthoyts 0:cde87f156401 39 }
patthoyts 0:cde87f156401 40 if (pressed) { pressed = false; printf("# button pressed\n"); }
patthoyts 0:cde87f156401 41 wait_us(delay);
patthoyts 0:cde87f156401 42 }
patthoyts 0:cde87f156401 43 }
patthoyts 0:cde87f156401 44