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authorbnewbold <bnewbold@robocracy.org>2010-06-12 22:54:11 -0400
committerbnewbold <bnewbold@robocracy.org>2010-07-20 15:36:44 -0400
commitf06fcac502619bc7f6155aa75947dc4340efccd5 (patch)
treee2e727854044548072ae6555744d886e3d7300fd /examples/test-timers.cpp
parent52cbd2f1a1557002f46355e0095400a09c267ff9 (diff)
downloadlibrambutan-f06fcac502619bc7f6155aa75947dc4340efccd5.tar.gz
librambutan-f06fcac502619bc7f6155aa75947dc4340efccd5.zip
good quality vga leaf logo; usb+systick disabled
refactored timers and added interrupt behavior. see notes and comments... also includes a crude vga hack that doesn't use timers.
Diffstat (limited to 'examples/test-timers.cpp')
-rw-r--r--examples/test-timers.cpp174
1 files changed, 174 insertions, 0 deletions
diff --git a/examples/test-timers.cpp b/examples/test-timers.cpp
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+// Sample main.cpp file. Blinks an LED, sends a message out USART2
+// and turns on PWM on pin 2
+
+#include "wirish.h"
+#include "timers.h"
+
+#define LED_PIN 13
+#define PWM_PIN 2
+
+void handler1(void);
+void handler2(void);
+void handler3(void);
+void handler4(void);
+
+void setup_test_timer(void);
+
+int toggle = 0;
+int timer = 1;
+int state = 3;
+int last_but = 0;
+
+int count1 = 0;
+int count2 = 0;
+int count3 = 0;
+int count4 = 0;
+uint16 rate1 = 1000;
+uint16 rate2 = 2000;
+uint16 rate3 = 3000;
+uint16 rate4 = 4000;
+uint16 val1 = 10000;
+uint16 val2 = 10000;
+uint16 val3 = 10000;
+uint16 val4 = 10000;
+
+void setup()
+{
+ /* Set up the LED to blink */
+ pinMode(LED_PIN, OUTPUT);
+
+ pinMode(38, INPUT);
+
+ /* Send a message out USART2 */
+ //SerialUSB.begin(9600);
+ SerialUSB.println("Begining timer test...");
+
+ /* Send a message out the usb virtual serial port */
+ //SerialUSB.println("Hello!");
+
+ timer = 1;
+ setup_test_timer();
+
+}
+
+
+void loop() {
+ toggle ^= 1;
+ digitalWrite(LED_PIN, toggle);
+ delay(800);
+
+
+ if(digitalRead(38) && !last_but) {
+ state++;
+ switch(state){
+ case 1:
+ SerialUSB.println("Testing Timer1 ---------------------------");
+ timer = 1;
+ setup_test_timer();
+ break;
+ case 2:
+ SerialUSB.println("Testing Timer2 ---------------------------");
+ timer_set_mode(timer,1,TIMER_DISABLED);
+ timer_set_mode(timer,2,TIMER_DISABLED);
+ timer_set_mode(timer,3,TIMER_DISABLED);
+ timer_set_mode(timer,4,TIMER_DISABLED);
+ timer_set_count(1,0);
+ timer_set_count(2,0);
+ timer_set_count(3,0);
+ timer_set_count(4,0);
+ timer = 2;
+ setup_test_timer();
+ break;
+ case 3:
+ SerialUSB.println("Testing Timer3 ---------------------------");
+ timer_set_mode(timer,1,TIMER_DISABLED);
+ timer_set_mode(timer,2,TIMER_DISABLED);
+ timer_set_mode(timer,3,TIMER_DISABLED);
+ timer_set_mode(timer,4,TIMER_DISABLED);
+ timer = 3;
+ setup_test_timer();
+ break;
+ case 4:
+ SerialUSB.println("Testing Timer4 ---------------------------");
+ timer_set_mode(timer,1,TIMER_DISABLED);
+ timer_set_mode(timer,2,TIMER_DISABLED);
+ timer_set_mode(timer,3,TIMER_DISABLED);
+ timer_set_mode(timer,4,TIMER_DISABLED);
+ timer = 4;
+ setup_test_timer();
+ break;
+ default:
+ state = 0;
+ timer_set_mode(timer,1,TIMER_DISABLED);
+ timer_set_mode(timer,2,TIMER_DISABLED);
+ timer_set_mode(timer,3,TIMER_DISABLED);
+ timer_set_mode(timer,4,TIMER_DISABLED);
+ timer = 0;
+ SerialUSB.println("Restarting -------------------------------");
+ }
+ }
+
+ SerialUSB.print("Doing ------------------ "); SerialUSB.println(timer,DEC);
+ if(timer!=0) { SerialUSB.print("CNT: "); SerialUSB.println(timer_get_count(timer),DEC); }
+ SerialUSB.print("Count1 : "); SerialUSB.println(count1,DEC);
+ SerialUSB.print("Count2 : "); SerialUSB.println(count2,DEC);
+ SerialUSB.print("Count3 : "); SerialUSB.println(count3,DEC);
+ SerialUSB.print("Count4 : "); SerialUSB.println(count4,DEC);
+ SerialUSB.println();
+ /*
+ SerialUSB.print("Status : "); SerialUSB.println(get_sr(),HEX);
+ */
+ last_but = digitalRead(38);
+}
+
+void setup_test_timer(void) {
+ timer_set_prescaler(timer,10000);
+ timer_set_mode(timer,1,TIMER_OUTPUTCOMPARE);
+ timer_set_mode(timer,2,TIMER_OUTPUTCOMPARE);
+ timer_set_mode(timer,3,TIMER_OUTPUTCOMPARE);
+ timer_set_mode(timer,4,TIMER_OUTPUTCOMPARE);
+ val1 = val2 = val3 = val4 = 10000;
+ timer_set_compare_value(timer,1,val1);
+ timer_set_compare_value(timer,2,val2);
+ timer_set_compare_value(timer,3,val3);
+ timer_set_compare_value(timer,4,val4);
+ timer_attach_interrupt(timer,1,handler1);
+ timer_attach_interrupt(timer,2,handler2);
+ timer_attach_interrupt(timer,3,handler3);
+ timer_attach_interrupt(timer,4,handler4);
+ count1 = count2 = count3 = count4 = 0;
+}
+
+void handler1(void) {
+ val1 += rate1;
+ timer_set_compare_value(timer,1,val1);
+ count1++;
+ //SerialUSB.print("CC3 Inter: "); SerialUSB.print(get_sr(),HEX);
+ // SerialUSB.print(", "); SerialUSB.println(get_sr_buff(),HEX);
+}
+void handler2(void) {
+ val2 += rate2;
+ timer_set_compare_value(timer,2,val2);
+ count2++;
+}
+void handler3(void) {
+ val3 += rate3;
+ timer_set_compare_value(timer,3,val3);
+ count3++;
+}
+void handler4(void) {
+ val4 += rate4;
+ timer_set_compare_value(timer,4,val4);
+ count4++;
+}
+
+
+int main(void) {
+ init();
+ setup();
+
+ while (1) {
+ loop();
+ }
+ return 0;
+}