From a66e57e0e92cdbd3c6a10b835c50f55647c07351 Mon Sep 17 00:00:00 2001
From: Keith Packard <keithp@keithp.com>
Date: Sun, 10 Jan 2016 15:56:21 -0800
Subject: [PATCH] =?utf8?q?altos:=20Switch=20PWM=20constants=20to=20end=20u?=
 =?utf8?q?p=20exposing=20=C2=B5sec?=
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This changes the constants so the clock runs at 1MHz, making the step
1µsec each. Then make the period 20000 steps, or 20ms for a 50Hz
frequency as before.

Signed-off-by: Keith Packard <keithp@keithp.com>
---
 src/telemega-v2.0/ao_pins.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/telemega-v2.0/ao_pins.h b/src/telemega-v2.0/ao_pins.h
index a0c7cc46..9095a350 100644
--- a/src/telemega-v2.0/ao_pins.h
+++ b/src/telemega-v2.0/ao_pins.h
@@ -387,10 +387,10 @@ struct ao_adc {
  */
 
 #define NUM_PWM			4
-#define PWM_MAX			64000
+#define PWM_MAX			20000
 #define AO_PWM_TIMER		stm_tim4
 #define AO_PWM_TIMER_ENABLE	STM_RCC_APB1ENR_TIM4EN
-#define AO_PWM_TIMER_SCALE	10
+#define AO_PWM_TIMER_SCALE	32
 
 #define AO_PWM_0_GPIO		(&stm_gpiod)
 #define AO_PWM_0_PIN		12
-- 
2.30.2