stm32nucleof401re_03_timer
Dependencies: mbed
Diff: main.cpp
- Revision:
- 0:b9a5fdb02a11
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/main.cpp Fri Feb 07 07:21:29 2020 +0000 @@ -0,0 +1,54 @@ +/* Copyright (c) 2019 Perlatecnica + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +/**************************************************** +* RAPID PROTOTYPING WITH NUCLEO * +* Example Code 03: Timer * +* Author: Mauro D'Angelo * +* Organization: Perlatecnica * +*****************************************************/ +/* Serial Client configuration * +* 9600 bauds, 8-bit data, no parity * +*****************************************************/ + +#include "mbed.h" + +// It creates an instance of the Timer class. From now on, we can refer to the timer through its instance +Timer timer; + +Serial pc(USBTX, USBRX); +DigitalOut myled(LED1); + +// Entry point +int main() { + // The timer is started calling its method 'start'. We refer to the Timer by the name of the instance + timer.start(); + + // It print to the serial client a string + pc.printf("It works!\r\n"); + + // Infinite loop. The instructions in the loop will be repeated forever + while(1) { + wait(1); + + // The timer is read calling its method read_ms. It returns the elapsed time in ms + pc.printf("This program runs since %d seconds.\r\n", timer.read_ms()/1000); + + // It change the led status. We will see the led blinking + myled = !myled; + } +} + +// EXERCISE: Reset the board and looks what happens \ No newline at end of file