diff options
Diffstat (limited to '02-usart/src/arch/stm32l4xxx/peripherals/clock.c')
| -rw-r--r-- | 02-usart/src/arch/stm32l4xxx/peripherals/clock.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/02-usart/src/arch/stm32l4xxx/peripherals/clock.c b/02-usart/src/arch/stm32l4xxx/peripherals/clock.c index 1029d39..9051572 100644 --- a/02-usart/src/arch/stm32l4xxx/peripherals/clock.c +++ b/02-usart/src/arch/stm32l4xxx/peripherals/clock.c @@ -5,10 +5,13 @@ #include "arch/stm32l4xxx/peripherals/clock.h" #include "arch/stm32l4xxx/peripherals/flash.h" +#include "kern/init.h" + #include <stdint.h> #define TIMEOUT 10000 + int pll_off() { uint32_t c; @@ -66,8 +69,16 @@ int configure_pll( return 0; } +static _no_init uint8_t clock_mHz; +uint8_t get_clock_mhz() +{ + return clock_mHz; +} + int set_system_clock_MHz(uint8_t mhz) { + clock_mHz = mhz; + /* Set the source of the system colck to MSI temporarily. */ set_system_clock_src(SYSTEM_CLOCK_SRC_MSI); |