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symmetric wave

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This commit is contained in:
Wolfgang Hottgenroth 2016-09-25 22:47:50 +02:00
parent d1841f8af5
commit 86f7ef98f3
2 changed files with 9 additions and 5 deletions
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12
src/inverter.c
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@ -46,7 +46,6 @@ volatile uint8_t activeOffset = 0;
ISR(TIMER1_A0, TA1_ISR_Ovrfl) {
if (pulseWidthIdx == 0) {
P1OUT ^= (BIT1 | BIT0);
}
uint16_t pw = pulseWidths[pulseWidthIdx + activeOffset];
@ -63,8 +62,11 @@ ISR(TIMER1_A0, TA1_ISR_Ovrfl) {
ISR(TIMER1_A1, TA1_ISR_Comp) {
__disable_interrupt();
if (TA1IV & TA1IV_TACCR1) {
uint16_t taiv = TA1IV;
if (taiv & TA1IV_TACCR1) {
P2OUT &= ~BIT1;
} else if ((taiv && TA1IV_TACCR2) && (pulseWidthIdx == 0)) {
P1OUT ^= (BIT1 | BIT0);
}
__enable_interrupt();
}
@ -86,8 +88,10 @@ void inverterInit() {
TA1CTL = MC_1 | ID_0 | TASSEL_2 | TACLR;
TA1CCTL0 = CCIE | OUTMOD_4;
TA1CCTL1 = CCIE;
TA1CCTL2 = CCIE;
TA1CCR0 = 0;
TA1CCR1 = 0;
TA1CCR2 = 1;
}
void inverterSetFrequency(uint16_t f) {
@ -97,8 +101,8 @@ void inverterSetFrequency(uint16_t f) {
uint8_t currentOffset = (activeOffset == 0) ? NUM_OF_SINE_VALUES : 0;
for (uint8_t i = 0; i < NUM_OF_SINE_VALUES; i++) {
uint16_t pw = (uint16_t)(slotLength * sineValues[i]);
pulseWidths[i + currentOffset] = (pw == sl) ? (pw - 25) : pw;
uint16_t pw = (uint16_t)(slotLength * 0.9 * sineValues[i]);
pulseWidths[i + currentOffset] = pw;
}
__disable_interrupt();

2
src/main.c
View File

@ -30,7 +30,7 @@ int main() {
__enable_interrupt();
inverterSetFrequency(75);
inverterSetFrequency(50);
while (1) {
}