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First program with shield
main.cpp
- Committer:
- dreschpe
- Date:
- 2012-10-16
- Revision:
- 1:1c6a9eaf55b5
- Parent:
- 0:f6a57b843f79
- Child:
- 2:a87e255a8f3a
File content as of revision 1:1c6a9eaf55b5:
// example to test the mbed Lab Board lcd // Pot1 change the contrast // Pot2 change the speed of the sin wave #include "mbed.h" #include "rtos.h" #include "Small_6.h" #include "Small_7.h" #include "Arial_9.h" #include "stdio.h" #include "C12832_lcd.h" Serial pc(USBTX, USBRX); // LCD object C12832_LCD LCD("LCD"); AnalogIn Pot1(p19); AnalogIn Pot2(p20); // defines to make lib thread save #define _lock lcd_mutex.lock(); #define _unlock lcd_mutex.unlock(); Mutex lcd_mutex; // print data into first line and wait for 1s void thread1(void const *args) { int i; while(true) { // thread loop _lock LCD.locate(0,0); LCD.set_font((unsigned char*) Small_6); printf("Thread1 count: %d",i); LCD.copy_to_lcd(); _unlock i++; Thread::wait(1000); } } // print data into third line and wait for 0,5s void thread2(void const *args) { int k; while(true) { // thread loop _lock LCD.locate(0,20); LCD.set_font((unsigned char*) Arial_9); printf("Thread 2 count : %d",k); LCD.copy_to_lcd(); _unlock k++; Thread::wait(500); } } void thread4(void const *args) { int i,k,v; double s,a; k = 1; _lock LCD.rect(89,0,127,17,1); _unlock while(true) { // thread loop _lock v = Pot1.read_u16(); // get value of pot 1 for (i=90; i<127; i++) { s = 8 * sin((long double)(i+k) /5); a = 8 * sin((long double)(i+k-1) /5); LCD.pixel(i,9 + (int)a ,0); LCD.pixel(i,9 + (int)s ,1); } LCD.copy_to_lcd(); _unlock k++; Thread::wait(v/100); } } void thread5(void const *args) { int k; while(true) { // thread loop k = Pot2.read_u16(); // get the value of poti 2 k = k >> 10; // we need only 6 bit _lock LCD.set_contrast(k); _unlock Thread::wait(500); } } int main() { int j; LCD.claim(stdout); // send stdout to the LCD display LCD.cls(); //start thread1 Thread t1(thread1); //start thread2 Thread t2(thread2); //start thread4 Thread t4(thread4); Thread t5(thread5); while(true) { // this is the third thread _lock LCD.locate(0,9); LCD.set_font((unsigned char*) Small_7); j = LCD.get_contrast(); printf("contrast : %d",j); LCD.copy_to_lcd(); _unlock Thread::wait(500); } }