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// Program to test the wirish timers implementation
#include "wirish.h"
#define LED_PIN BOARD_LED_PIN
void handler1(void);
void handler2(void);
void handler3(void);
void handler4(void);
void handler3b(void);
void handler4b(void);
int t;
int count1 = 0;
int count2 = 0;
int count3 = 0;
int count4 = 0;
uint16 rate1 = 1000;
uint16 rate2 = 2000;
uint16 rate3 = 4000;
uint16 rate4 = 8000;
uint16 val1 = 10000;
uint16 val2 = 10000;
uint16 val3 = 10000;
uint16 val4 = 10000;
HardwareTimer Timers[] = {Timer1, Timer2, Timer3, Timer4};
void setup()
{
/* Set up the LED to blink */
pinMode(LED_PIN, OUTPUT);
// Setup the button as input
pinMode(BOARD_BUTTON_PIN, INPUT);
// Wait for user to attach...
waitForButtonPress(0);
// Send a message out SerialUSB
SerialUSB.println("Beginning timer test...");
for(int t=0; t<4; t++) {
Timers[t].setChannel1Mode(TIMER_OUTPUTCOMPARE);
Timers[t].setChannel2Mode(TIMER_OUTPUTCOMPARE);
Timers[t].setChannel3Mode(TIMER_OUTPUTCOMPARE);
Timers[t].setChannel4Mode(TIMER_OUTPUTCOMPARE);
}
}
void loop() {
SerialUSB.println("-----------------------------------------------------");
SerialUSB.println("Testing setCount/getCount");
SerialUSB.print("Timer1.getCount() = "); SerialUSB.println(Timer1.getCount());
SerialUSB.println("Timer1.setCount(1234)");
Timer1.setCount(1234);
SerialUSB.print("Timer1.getCount() = "); SerialUSB.println(Timer1.getCount());
// This tests whether the pause/resume functions work; when BUT is held
// down Timer4 is in the "pause" state and the timer doesn't increment, so
// the final counts should reflect the ratio of time that BUT was held down
SerialUSB.println("-----------------------------------------------------");
SerialUSB.println("Testing Pause/Resume; button roughly controls Timer4");
count3 = 0;
count4 = 0;
Timer3.setChannel1Mode(TIMER_OUTPUTCOMPARE);
Timer4.setChannel1Mode(TIMER_OUTPUTCOMPARE);
Timer3.pause();
Timer4.pause();
Timer3.setCount(0);
Timer4.setCount(0);
Timer3.setOverflow(30000);
Timer4.setOverflow(30000);
Timer3.setCompare1(1000);
Timer4.setCompare1(1000);
Timer3.attachCompare1Interrupt(handler3b);
Timer4.attachCompare1Interrupt(handler4b);
Timer3.resume();
Timer4.resume();
SerialUSB.println("~4 seconds...");
for(int i = 0; i<4000; i++) {
if(isButtonPressed()) {
Timer4.pause();
} else {
Timer4.resume();
}
delay(1);
}
Timer3.setChannel1Mode(TIMER_DISABLED);
Timer4.setChannel1Mode(TIMER_DISABLED);
SerialUSB.print("Count3: "); SerialUSB.println(count3);
SerialUSB.print("Count4: "); SerialUSB.println(count4);
// These test the setPeriod auto-configure functionality
SerialUSB.println("-----------------------------------------------------");
SerialUSB.println("Testing setPeriod");
Timer4.setChannel1Mode(TIMER_OUTPUTCOMPARE);
Timer4.setCompare1(1);
Timer4.setPeriod(10);
Timer4.pause();
Timer4.setCount(0);
Timer4.attachCompare1Interrupt(handler4b);
SerialUSB.println("Period 10ms, wait 2 seconds...");
count4 = 0;
Timer4.resume();
delay(2000);
Timer4.pause();
Timer4.setChannel1Mode(TIMER_DISABLED);
SerialUSB.print("Count4: "); SerialUSB.println(count4);
SerialUSB.println("(should be around 2sec/10ms = 200000)");
Timer4.setChannel1Mode(TIMER_OUTPUTCOMPARE);
Timer4.setCompare1(1);
Timer4.pause();
Timer4.setPeriod(30000);
Timer4.setCount(0);
Timer4.attachCompare1Interrupt(handler4b);
SerialUSB.println("Period 30000ms, wait 2 seconds...");
count4 = 0;
Timer4.resume();
delay(2000);
Timer4.pause();
Timer4.setChannel1Mode(TIMER_DISABLED);
SerialUSB.print("Count4: "); SerialUSB.println(count4);
SerialUSB.println("(should be around 2sec/30000ms ~ 67)");
Timer4.setChannel1Mode(TIMER_OUTPUTCOMPARE);
Timer4.setPeriod(300000);
Timer4.setCompare1(1);
Timer4.pause();
Timer4.setCount(0);
Timer4.attachCompare1Interrupt(handler4b);
SerialUSB.println("Period 300000ms, wait 2 seconds...");
count4 = 0;
Timer4.resume();
delay(2000);
Timer4.pause();
Timer4.setChannel1Mode(TIMER_DISABLED);
SerialUSB.print("Count4: "); SerialUSB.println(count4);
SerialUSB.println("(should be around 2sec/300000ms ~ 6.7)");
Timer4.setChannel1Mode(TIMER_OUTPUTCOMPARE);
Timer4.setPrescaleFactor(33);
Timer4.setOverflow(65454);
Timer4.pause();
Timer4.setCount(0);
Timer4.setCompare1(1);
Timer4.attachCompare1Interrupt(handler4b);
SerialUSB.println("Period 30000ms, wait 2 seconds...");
count4 = 0;
Timer4.resume();
delay(2000);
Timer4.pause();
Timer4.setChannel1Mode(TIMER_DISABLED);
SerialUSB.print("Count4: "); SerialUSB.println(count4);
SerialUSB.println("(should be around 2sec/30000ms ~ 67)");
Timer4.setChannel1Mode(TIMER_OUTPUTCOMPARE);
Timer4.setCompare1(1);
Timer4.setPeriod(30000);
Timer4.pause();
Timer4.setCount(0);
Timer4.attachCompare1Interrupt(handler4b);
SerialUSB.println("Period 30000ms, wait 2 seconds...");
count4 = 0;
Timer4.resume();
delay(2000);
Timer4.pause();
Timer4.setChannel1Mode(TIMER_DISABLED);
SerialUSB.print("Count4: "); SerialUSB.println(count4);
SerialUSB.println("(should be around 2sec/30000ms ~ 67)");
// This section is to touch every channel of every timer. The output
// ratios should reflect the ratios of the rate variables. Demonstrates
// that over time the actual timing rates get blown away by other system
// interrupts.
for(t=0; t<4; t++) {
toggleLED();
delay(100);
SerialUSB.println("-----------------------------------------------------");
SerialUSB.print("Testing Timer "); SerialUSB.println(t+1);
count1 = count2 = count3 = count4 = 0;
Timers[t].setOverflow(0xFFFF);
Timers[t].setPrescaleFactor(1);
Timers[t].setCompare1(65535);
Timers[t].setCompare2(65535);
Timers[t].setCompare3(65535);
Timers[t].setCompare4(65535);
Timers[t].setChannel1Mode(TIMER_OUTPUTCOMPARE);
Timers[t].setChannel2Mode(TIMER_OUTPUTCOMPARE);
Timers[t].setChannel3Mode(TIMER_OUTPUTCOMPARE);
Timers[t].setChannel4Mode(TIMER_OUTPUTCOMPARE);
Timers[t].attachCompare1Interrupt(handler1);
Timers[t].attachCompare2Interrupt(handler2);
Timers[t].attachCompare3Interrupt(handler3);
Timers[t].attachCompare4Interrupt(handler4);
Timers[t].resume();
delay(3000);
Timers[t].setChannel1Mode(TIMER_DISABLED);
Timers[t].setChannel2Mode(TIMER_DISABLED);
Timers[t].setChannel3Mode(TIMER_DISABLED);
Timers[t].setChannel4Mode(TIMER_DISABLED);
SerialUSB.print("Count1: "); SerialUSB.println(count1);
SerialUSB.print("Count2: "); SerialUSB.println(count2);
SerialUSB.print("Count3: "); SerialUSB.println(count3);
SerialUSB.print("Count4: "); SerialUSB.println(count4);
}
}
void handler1(void) {
val1 += rate1;
Timers[t].setCompare1(val1);
count1++;
}
void handler2(void) {
val2 += rate2;
Timers[t].setCompare2(val2);
count2++;
}
void handler3(void) {
val3 += rate3;
Timers[t].setCompare3(val3);
count3++;
}
void handler4(void) {
val4 += rate4;
Timers[t].setCompare4(val4);
count4++;
}
void handler3b(void) {
count3++;
}
void handler4b(void) {
count4++;
}
__attribute__((constructor)) void premain() {
init();
}
int main(void) {
setup();
while (1) {
loop();
}
return 0;
}
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