If correctly configured allow the STM32F2xx timer to print
out the PWM duty cycle information.
Signed-off-by: Alistair Francis <alist...@alistair23.me>
Reviewed-by: Peter Crosthwaite <peter.crosthwa...@xilinx.com>
---
V3:
- Use OR instead of + for masking
- Improve clarity of print statement
V2:
- Fix up if statement braces
- Remove stm32f2xx_timer_set_alarm() call
hw/timer/stm32f2xx_timer.c | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/hw/timer/stm32f2xx_timer.c b/hw/timer/stm32f2xx_timer.c
index bf0fb28..8c4c1f9 100644
--- a/hw/timer/stm32f2xx_timer.c
+++ b/hw/timer/stm32f2xx_timer.c
@@ -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)
--
2.7.4
