0_led_blinky.cpp

00001 /*
00002  * Mbed Application program / Blinky
00003  *
00004  * Copyright (c) 2018,'19 Kenji Arai / JH1PJL
00005  *  http://www.page.sannet.ne.jp/kenjia/index.html
00006  *  https://os.mbed.com/users/kenjiArai/
00007  *      Created:    April     10th, 2018
00008  *      Revised:    October   14th, 2019
00009  */
00010 
00011 #include "select_program.h"
00012 //#define EXAMPLE_0_BLINKY_LED
00013 #ifdef EXAMPLE_0_BLINKY_LED
00014 
00015 //  Include --------------------------------------------------------------------
00016 #include "mbed.h"
00017 
00018 //  Definition -----------------------------------------------------------------
00019 #define LEDON   1
00020 #define LEDOFF  0
00021 
00022 #define FOREVER 0x7fffffff
00023 
00024 //  Constructor ----------------------------------------------------------------
00025 DigitalOut  my_led1(LED1);
00026 DigitalOut  my_led2(LED2);
00027 DigitalOut  my_led3(LED3);
00028 Serial pc(USBTX, USBRX, 115200);
00029 
00030 //  RAM ------------------------------------------------------------------------
00031 
00032 //  ROM / Constant data --------------------------------------------------------
00033 
00034 //  Function prototypes --------------------------------------------------------
00035 static void tsk_0(void const *args);
00036 static void tsk_1(void const *args);
00037 static void tsk_2(void const *args);
00038 static void tsk_3(void const *args);
00039 
00040 //------------------------------------------------------------------------------
00041 //  Control Program
00042 //------------------------------------------------------------------------------
00043 osThreadDef(tsk_0, osPriorityNormal,1024);
00044 osThreadDef(tsk_1, osPriorityNormal,1024);
00045 osThreadDef(tsk_2, osPriorityNormal,1024);
00046 osThreadDef(tsk_3, osPriorityNormal,1024);
00047 
00048 int main()
00049 {
00050     pc.printf("\x1b[2J\x1b[H %s\r\n %s %s (UTC)\r\n",
00051               __FILE__, __DATE__, __TIME__);
00052     printf(" LED BLINKY EXAMPLE FOR DISCO-F769NI:\r\n");
00053     osThreadId  id0, id1, id2, id3;
00054     id0 = osThreadCreate(osThread(tsk_0), NULL);
00055     id1 = osThreadCreate(osThread(tsk_1), NULL);
00056     id2 = osThreadCreate(osThread(tsk_2), NULL);
00057     id3 = osThreadCreate(osThread(tsk_3), NULL);
00058     pc.printf("id0=0x%x, id1=0x%x, id2=0x%x, id3=0x%x\r\n",
00059               (uint32_t)id0, (uint32_t)id1, (uint32_t)id2, (uint32_t)id3);
00060     while(true) {
00061         ThisThread::sleep_for(FOREVER);
00062     }
00063 }
00064 
00065 void tsk_0(void const *args)
00066 {
00067     Timer t;
00068     uint32_t count = 0;
00069 
00070     while(true) {
00071         t.reset();
00072         t.start();
00073         pc.printf("%5d\r\n", count++);
00074         uint32_t wait = 1000 - t.read_ms();
00075         ThisThread::sleep_for(wait);
00076     }
00077 }
00078 
00079 void tsk_1(void const *args)
00080 {
00081     while(true) {
00082         my_led1 = LEDON;
00083         ThisThread::sleep_for(5);
00084         my_led1 = LEDOFF;
00085         ThisThread::sleep_for(1995);
00086     }
00087 }
00088 
00089 void tsk_2(void const *args)
00090 {
00091     while(true) {
00092         my_led2 = LEDON;
00093         ThisThread::sleep_for(5);
00094         my_led2 = LEDOFF;
00095         ThisThread::sleep_for(2995);
00096     }
00097 }
00098 
00099 void tsk_3(void const *args)
00100 {
00101     while(true) {
00102         my_led3 = LEDON;
00103         ThisThread::sleep_for(5);
00104         my_led3 = LEDOFF;
00105         ThisThread::sleep_for(3995);
00106     }
00107 }
00108 
00109 #endif