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| author | Arksine <9563098+Arksine@users.noreply.github.com> | 2021-04-03 06:54:07 -0400 |
|---|---|---|
| committer | KevinOConnor <kevin@koconnor.net> | 2021-04-07 12:57:21 -0400 |
| commit | 689c2f9baf835b55cdbb68d78b0913d8ca6df317 (patch) | |
| tree | 18d3322e3c2dead7f297b1d1ea0e3594af8c0f06 /src/stm32/stm32f1.c | |
| parent | 5729109727b508f13f71b6eb41955a252d9a9e39 (diff) | |
| download | kutter-689c2f9baf835b55cdbb68d78b0913d8ca6df317.tar.gz kutter-689c2f9baf835b55cdbb68d78b0913d8ca6df317.tar.xz kutter-689c2f9baf835b55cdbb68d78b0913d8ca6df317.zip | |
stm32f1: reset peripherals in enable_pcclock()
Some bootloaders do not disable peripherals in use before jumping to the application. Reset peripherals to assure correct operation.
SIgned-off-by: Eric Callahan <arksine.code@gmail.com>
Diffstat (limited to 'src/stm32/stm32f1.c')
| -rw-r--r-- | src/stm32/stm32f1.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/src/stm32/stm32f1.c b/src/stm32/stm32f1.c index ae8fcd67..34c28573 100644 --- a/src/stm32/stm32f1.c +++ b/src/stm32/stm32f1.c @@ -21,10 +21,14 @@ enable_pclock(uint32_t periph_base) uint32_t pos = (periph_base - APB1PERIPH_BASE) / 0x400; RCC->APB1ENR |= (1<<pos); RCC->APB1ENR; + RCC->APB1RSTR |= (1<<pos); + RCC->APB1RSTR &= ~(1<<pos); } else if (periph_base < AHBPERIPH_BASE) { uint32_t pos = (periph_base - APB2PERIPH_BASE) / 0x400; RCC->APB2ENR |= (1<<pos); RCC->APB2ENR; + RCC->APB2RSTR |= (1<<pos); + RCC->APB2RSTR &= ~(1<<pos); } else { uint32_t pos = (periph_base - AHBPERIPH_BASE) / 0x400; RCC->AHBENR |= (1<<pos); |