diff options
Diffstat (limited to 'examples')
| -rw-r--r-- | examples/test-timers.cpp | 13 | ||||
| -rw-r--r-- | examples/vga-leaf.cpp | 2 |
2 files changed, 12 insertions, 3 deletions
diff --git a/examples/test-timers.cpp b/examples/test-timers.cpp index 9b1efc6..9adce70 100644 --- a/examples/test-timers.cpp +++ b/examples/test-timers.cpp @@ -1,10 +1,8 @@ -// Sample main.cpp file. Blinks an LED, sends a message out USART2 -// and turns on PWM on pin 2 +// Program to test the wirish timers implementation #include "wirish.h" #define LED_PIN 13 -#define PWM_PIN 2 void handler1(void); void handler2(void); @@ -37,6 +35,7 @@ void setup() /* Set up the LED to blink */ pinMode(LED_PIN, OUTPUT); + // Setup the button as input pinMode(38, INPUT_PULLUP); /* Send a message out USART2 */ @@ -54,6 +53,9 @@ void setup() } void loop() { + // 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; @@ -86,6 +88,7 @@ void loop() { 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); @@ -163,6 +166,10 @@ void loop() { 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++) { toggle ^= 1; digitalWrite(LED_PIN, toggle); delay(100); diff --git a/examples/vga-leaf.cpp b/examples/vga-leaf.cpp index 3374608..6d07988 100644 --- a/examples/vga-leaf.cpp +++ b/examples/vga-leaf.cpp @@ -1,3 +1,5 @@ +// Low-level, non-wirish demonstration of VGA + #include "wirish.h" #define LED_PIN 13 |