#define AO_TIMER_PIO cat4(pio, BEEPER_PORT, _, BEEPER_PIN)
/* LPC_IOCONF_FUNC_PIO0_14_CT32B1_MAT1 */
#define AO_TIMER_FUNC cat8(LPC_IOCONF_FUNC_PIO, BEEPER_PORT, _, BEEPER_PIN, _CT32B, BEEPER_TIMER, _MAT, BEEPER_OUTPUT)
+#define AO_TIMER_PWM cat(LPC_CT32B_PWMC_PWMEN, BEEPER_OUTPUT)
void
ao_beep(uint8_t beep)
AO_TIMER.mr[0] = beep << 1;
/* PWM width is half of that */
- AO_TIMER.mr[1] = beep;
+ AO_TIMER.mr[BEEPER_OUTPUT] = beep;
- /* Flip output 1 on PWM match */
+ /* Flip output on PWM match */
AO_TIMER.emr = (LPC_CT32B_EMR_EMC_TOGGLE << AO_TIMER_EMC);
/* Reset on match 0 */
AO_TIMER.mcr = (1 << LPC_CT32B_MCR_MR0R);
- /* PWM on match 1 */
- AO_TIMER.pwmc = (1 << LPC_CT32B_PWMC_PWMEN1);
+ /* PWM on match */
+ AO_TIMER.pwmc = (1 << AO_TIMER_PWM);
/* timer mode */
AO_TIMER.ctcr = 0;