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/*
* Simple DAC test.
*
* Author: Marti Bolivar <mbolivar@leaflabs.com>
*
* This file is released into the public domain.
*/
#include "wirish.h"
#include "dac.h"
uint16 count = 0;
void setup() {
pinMode(BOARD_LED_PIN, OUTPUT);
digitalWrite(BOARD_LED_PIN, HIGH);
Serial1.begin(9600);
Serial1.println("**** Beginning DAC test");
Serial1.print("Init... ");
dac_init(DAC, DAC_CH1 | DAC_CH2);
Serial1.println("Done.");
}
void loop() {
toggleLED();
delay(100);
count += 100;
if (count > 4095) {
count = 0;
}
dac_write_channel(DAC, 1, 4095 - count);
dac_write_channel(DAC, 2, count);
}
__attribute__((constructor)) void premain() {
init();
}
int main(void) {
setup();
while (true) {
loop();
}
return 0;
}
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