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STM32F2xx: Display PWM duty cycle from timer 

If correctly configured allow the STM32F2xx timer to print
out the PWM duty cycle information.

Signed-off-by: Alistair Francis <alistair@alistair23.me>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Message-id: cdb59039a25e061615713a94b40797baa12ea9f9.1474742262.git.alistair@alistair23.me
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Alistair Francis 2016-10-04 13:28:07 +01:00 committed by Peter Maydell
parent 81fed1d017
commit cbcb93e802
1 changed files with 9 additions and 0 deletions
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9
hw/timer/stm32f2xx_timer.c
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@ -51,6 +51,15 @@ static void stm32f2xx_timer_interrupt(void *opaque)
qemu_irq_pulse(s->irq);
stm32f2xx_timer_set_alarm(s, s->hit_time);
}
if (s->tim_ccmr1 & (TIM_CCMR1_OC2M2 | TIM_CCMR1_OC2M1) &&
!(s->tim_ccmr1 & TIM_CCMR1_OC2M0) &&
s->tim_ccmr1 & TIM_CCMR1_OC2PE &&
s->tim_ccer & TIM_CCER_CC2E) {
/* PWM 2 - Mode 1 */
DB_PRINT("PWM2 Duty Cycle: %d%%\n",
s->tim_ccr2 / (100 * (s->tim_psc + 1)));
}
}
static inline int64_t stm32f2xx_ns_to_ticks(STM32F2XXTimerState *s, int64_t t)