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Determine ISR on #define

This commit is contained in:
nick6x 2017-07-30 11:53:55 -07:00
parent c4daa7941b
commit 7ebe201f96
1 changed files with 7 additions and 6 deletions
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13
examples/SimpleSin/SimpleSin.ino
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@ -9,6 +9,7 @@
#define PWM_PIN 3 #define PWM_PIN 3
#define DDS_USE_ONLY_TIMER2 false
#define TIMER2_PHASE_ADVANCE 24 #define TIMER2_PHASE_ADVANCE 24
DDS dds; DDS dds;
@ -18,7 +19,7 @@ void setup() {
digitalWrite(PWM_PIN, LOW); digitalWrite(PWM_PIN, LOW);
dds.start(); dds.start();
dds.startPhaseAccumulator(false); dds.startPhaseAccumulator(DDS_USE_ONLY_TIMER2);
dds.playWait(600, 3000); dds.playWait(600, 3000);
dds.on(); dds.on();
//dds.setAmplitude(31); //dds.setAmplitude(31);
@ -29,16 +30,15 @@ void loop() {
} }
//Uncomment if using dds.startPhaseAccumulator(true); #if DDS_USE_ONLY_TIMER2
/*ISR(TIMER2_OVF_vect) { ISR(TIMER2_OVF_vect) {
static unsigned char tcnt = 0; static unsigned char tcnt = 0;
if(++tcnt == TIMER2_PHASE_ADVANCE) { if(++tcnt == TIMER2_PHASE_ADVANCE) {
tcnt = 0; tcnt = 0;
dds.clockTick(); dds.clockTick();
} }
}*/ }
#else // Use the ADC timer instead
//Comment if using dds.startPhaseAccumulator(true);
ISR(ADC_vect) { ISR(ADC_vect) {
if(false){ if(false){
static unsigned char tcnt = 0; static unsigned char tcnt = 0;
@ -49,3 +49,4 @@ ISR(ADC_vect) {
dds.clockTick(); dds.clockTick();
} }
} }
#endif