tomasz gurajek / Mbed 2 deprecated lab2020_lab1_modyfied

tomasz_gurajek

Dependencies:   mbed mbed-rtos C12832_lcd LCD_fonts

main.cpp@4:4754317f4a08, 2020-08-01 (annotated)

Committer:
t00204088
Date:
Sat Aug 01 12:11:15 2020 +0000
Revision:
4:4754317f4a08
Parent:
3:3ec443c0842a 
tomasz_gurajek

Who changed what in which revision?

UserRevisionLine numberNew contents of line
dreschpe 2:a69c8c5f5b03 1 // example to test the mbed Lab Board lcd lib with the mbed rtos
dreschpe 1:1c6a9eaf55b5 2 // Pot1 change the contrast
dreschpe 1:1c6a9eaf55b5 3 // Pot2 change the speed of the sin wave
dreschpe 1:1c6a9eaf55b5 4
dreschpe 0:f6a57b843f79 5 #include "mbed.h"
dreschpe 0:f6a57b843f79 6 #include "rtos.h"
dreschpe 0:f6a57b843f79 7 #include "Small_6.h"
dreschpe 0:f6a57b843f79 8 #include "Small_7.h"
dreschpe 0:f6a57b843f79 9 #include "Arial_9.h"
dreschpe 0:f6a57b843f79 10 #include "stdio.h"
dreschpe 1:1c6a9eaf55b5 11 #include "C12832_lcd.h"
t00204088 4:4754317f4a08 12 BusIn joy(p15,p12,p13,p16);
t00204088 4:4754317f4a08 13 DigitalIn fire(p14);
t00204088 4:4754317f4a08 14 BusOut leds(LED1,LED2,LED3,LED4);
dreschpe 0:f6a57b843f79 15 // LCD object
dreschpe 3:3ec443c0842a 16 C12832_LCD LCD;
dreschpe 0:f6a57b843f79 17
dreschpe 1:1c6a9eaf55b5 18 AnalogIn Pot1(p19);
dreschpe 1:1c6a9eaf55b5 19 AnalogIn Pot2(p20);
dreschpe 0:f6a57b843f79 20
dreschpe 2:a69c8c5f5b03 21
dreschpe 2:a69c8c5f5b03 22 // mutex to make the lcd lib thread save
dreschpe 1:1c6a9eaf55b5 23 Mutex lcd_mutex;
dreschpe 0:f6a57b843f79 24
dreschpe 2:a69c8c5f5b03 25 // Thread 1
dreschpe 2:a69c8c5f5b03 26 // print counter into first line and wait for 1 s
dreschpe 0:f6a57b843f79 27 void thread1(void const *args)
dreschpe 0:f6a57b843f79 28 {
dreschpe 0:f6a57b843f79 29 int i;
dreschpe 0:f6a57b843f79 30 while(true) { // thread loop
dreschpe 2:a69c8c5f5b03 31 lcd_mutex.lock();
dreschpe 0:f6a57b843f79 32 LCD.locate(0,0);
dreschpe 0:f6a57b843f79 33 LCD.set_font((unsigned char*) Small_6);
dreschpe 3:3ec443c0842a 34 LCD.printf("Thread1 count: %d",i);
dreschpe 2:a69c8c5f5b03 35 lcd_mutex.unlock();
dreschpe 0:f6a57b843f79 36 i++;
dreschpe 0:f6a57b843f79 37 Thread::wait(1000);
dreschpe 0:f6a57b843f79 38 }
dreschpe 0:f6a57b843f79 39 }
dreschpe 0:f6a57b843f79 40
dreschpe 2:a69c8c5f5b03 41 // Thread 2
dreschpe 2:a69c8c5f5b03 42 // print counter into third line and wait for 0,5s
dreschpe 0:f6a57b843f79 43 void thread2(void const *args)
dreschpe 0:f6a57b843f79 44 {
dreschpe 1:1c6a9eaf55b5 45 int k;
dreschpe 0:f6a57b843f79 46 while(true) { // thread loop
dreschpe 2:a69c8c5f5b03 47 lcd_mutex.lock();
dreschpe 0:f6a57b843f79 48 LCD.locate(0,20);
dreschpe 0:f6a57b843f79 49 LCD.set_font((unsigned char*) Arial_9);
dreschpe 3:3ec443c0842a 50 LCD.printf("Thread 2 count : %d",k);
dreschpe 2:a69c8c5f5b03 51 lcd_mutex.unlock();
dreschpe 1:1c6a9eaf55b5 52 k++;
dreschpe 2:a69c8c5f5b03 53 Thread::wait(500); // wait 0.5s
dreschpe 0:f6a57b843f79 54 }
dreschpe 0:f6a57b843f79 55 }
dreschpe 0:f6a57b843f79 56
dreschpe 2:a69c8c5f5b03 57 // Thread 3
dreschpe 2:a69c8c5f5b03 58 // print a sin function in a small window
dreschpe 2:a69c8c5f5b03 59 // the value of pot 1 change the speed of the sinwave
dreschpe 2:a69c8c5f5b03 60 void thread3(void const *args)
dreschpe 1:1c6a9eaf55b5 61 {
dreschpe 1:1c6a9eaf55b5 62 int i,k,v;
dreschpe 1:1c6a9eaf55b5 63 double s,a;
dreschpe 1:1c6a9eaf55b5 64 k = 1;
dreschpe 2:a69c8c5f5b03 65 lcd_mutex.lock();
dreschpe 1:1c6a9eaf55b5 66 LCD.rect(89,0,127,17,1);
dreschpe 2:a69c8c5f5b03 67 lcd_mutex.unlock();
dreschpe 1:1c6a9eaf55b5 68 while(true) { // thread loop
dreschpe 1:1c6a9eaf55b5 69 v = Pot1.read_u16(); // get value of pot 1
dreschpe 2:a69c8c5f5b03 70 lcd_mutex.lock();
dreschpe 1:1c6a9eaf55b5 71 for (i=90; i<127; i++) {
dreschpe 2:a69c8c5f5b03 72 s = 8 * sin((long double)(i+k) /5); // pixel to print
dreschpe 2:a69c8c5f5b03 73 a = 8 * sin((long double)(i+k-1) /5); // old pixel to erase
dreschpe 2:a69c8c5f5b03 74 LCD.pixel(i,9 + (int)a ,0); // erase pixel
dreschpe 2:a69c8c5f5b03 75 LCD.pixel(i,9 + (int)s ,1); // print pixel
dreschpe 1:1c6a9eaf55b5 76 }
dreschpe 2:a69c8c5f5b03 77 LCD.copy_to_lcd(); // LCD.pixel do not update the lcd
dreschpe 2:a69c8c5f5b03 78 lcd_mutex.unlock();
dreschpe 1:1c6a9eaf55b5 79 k++;
dreschpe 2:a69c8c5f5b03 80 Thread::wait(v/100); // value of pot1 / 100
dreschpe 1:1c6a9eaf55b5 81 }
dreschpe 1:1c6a9eaf55b5 82 }
dreschpe 0:f6a57b843f79 83
dreschpe 2:a69c8c5f5b03 84 // Thread 4
dreschpe 2:a69c8c5f5b03 85 // input pot 2 and change the contrast of lcd
dreschpe 2:a69c8c5f5b03 86 void thread4(void const *args)
dreschpe 1:1c6a9eaf55b5 87 {
dreschpe 1:1c6a9eaf55b5 88 int k;
dreschpe 1:1c6a9eaf55b5 89 while(true) { // thread loop
dreschpe 1:1c6a9eaf55b5 90 k = Pot2.read_u16(); // get the value of poti 2
dreschpe 2:a69c8c5f5b03 91 k = k >> 10; // we need only 6 bit for contrast
dreschpe 2:a69c8c5f5b03 92 lcd_mutex.lock();
dreschpe 1:1c6a9eaf55b5 93 LCD.set_contrast(k);
dreschpe 2:a69c8c5f5b03 94 lcd_mutex.unlock();
dreschpe 2:a69c8c5f5b03 95 Thread::wait(500); // wait 0.5s
dreschpe 1:1c6a9eaf55b5 96 }
dreschpe 1:1c6a9eaf55b5 97 }
t00204088 4:4754317f4a08 98 // Thread 5
t00204088 4:4754317f4a08 99 // input joystic
t00204088 4:4754317f4a08 100 void thread5(void const *args)
t00204088 4:4754317f4a08 101 {
t00204088 4:4754317f4a08 102 while(1) {
t00204088 4:4754317f4a08 103 if (fire) {
t00204088 4:4754317f4a08 104 leds=0xf;
t00204088 4:4754317f4a08 105 } else {
t00204088 4:4754317f4a08 106 leds=joy;
t00204088 4:4754317f4a08 107 }
t00204088 4:4754317f4a08 108 wait(0.1);
t00204088 4:4754317f4a08 109 }
t00204088 4:4754317f4a08 110 }
t00204088 4:4754317f4a08 111
dreschpe 1:1c6a9eaf55b5 112
dreschpe 2:a69c8c5f5b03 113
dreschpe 2:a69c8c5f5b03 114 // print the actual contrast
dreschpe 0:f6a57b843f79 115 int main()
dreschpe 0:f6a57b843f79 116 {
dreschpe 0:f6a57b843f79 117 int j;
dreschpe 2:a69c8c5f5b03 118 LCD.cls();
dreschpe 2:a69c8c5f5b03 119
dreschpe 2:a69c8c5f5b03 120 Thread t1(thread1); //start thread1
dreschpe 2:a69c8c5f5b03 121 Thread t2(thread2); //start thread2
dreschpe 2:a69c8c5f5b03 122 Thread t3(thread3); //start thread3
dreschpe 2:a69c8c5f5b03 123 Thread t4(thread4); //start thread4
t00204088 4:4754317f4a08 124 Thread t5(thread5) ; //start thread5
dreschpe 2:a69c8c5f5b03 125 while(true) { // main is the next thread
dreschpe 2:a69c8c5f5b03 126 lcd_mutex.lock();
dreschpe 1:1c6a9eaf55b5 127 LCD.locate(0,9);
dreschpe 0:f6a57b843f79 128 LCD.set_font((unsigned char*) Small_7);
dreschpe 2:a69c8c5f5b03 129 j = LCD.get_contrast(); // read the actual contrast
dreschpe 3:3ec443c0842a 130 LCD.printf("contrast : %d",j);
dreschpe 2:a69c8c5f5b03 131 lcd_mutex.unlock();
dreschpe 2:a69c8c5f5b03 132 Thread::wait(500); // wait 0.5s
dreschpe 0:f6a57b843f79 133 }
dreschpe 1:1c6a9eaf55b5 134
dreschpe 0:f6a57b843f79 135 }
t00204088 4:4754317f4a08 136