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authorKeith Packard <keithp@keithp.com>2019-03-18 17:17:21 -0700
committerKeith Packard <keithp@keithp.com>2019-03-18 17:22:22 -0700
commit65be5d1e07ff4ae619233f3b541b9599c44490ab (patch)
tree52e3aa8360dce2dddc12b2d9ab9e138c38fe0129 /src/stm32f4/ao_timer.c
parentefc2c093819b3ec2e5743126efb76d3a9c0ad231 (diff)
altos/stm32f4: Need to read-back register after clock enable
This was reported as necessary; I have no idea, but it's not expensive, so why not... Signed-off-by: Keith Packard <keithp@keithp.com>
Diffstat (limited to 'src/stm32f4/ao_timer.c')
-rw-r--r--src/stm32f4/ao_timer.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/src/stm32f4/ao_timer.c b/src/stm32f4/ao_timer.c
index d6ef9bc3..fb83db00 100644
--- a/src/stm32f4/ao_timer.c
+++ b/src/stm32f4/ao_timer.c
@@ -262,13 +262,12 @@ ao_clock_init(void)
#if DEBUG_THE_CLOCK
/* Output PLL clock on PA8 and SYCLK on PC9 for measurments */
- stm_rcc.ahb1enr |= ((1 << STM_RCC_AHB1ENR_IOPAEN) |
- (1 << STM_RCC_AHB1ENR_IOPCEN));
-
+ ao_enable_port(&stm_gpioa);
stm_afr_set(&stm_gpioa, 8, STM_AFR_AF0);
stm_moder_set(&stm_gpioa, 8, STM_MODER_ALTERNATE);
stm_ospeedr_set(&stm_gpioa, 8, STM_OSPEEDR_HIGH);
+ ao_enable_port(&stm_gpioc);
stm_afr_set(&stm_gpioc, 9, STM_AFR_AF0);
stm_moder_set(&stm_gpioc, 9, STM_MODER_ALTERNATE);
stm_ospeedr_set(&stm_gpioc, 9, STM_OSPEEDR_HIGH);