diff options
| author | Keith Packard <keithp@keithp.com> | 2012-04-09 22:17:33 -0700 |
|---|---|---|
| committer | Keith Packard <keithp@keithp.com> | 2012-04-09 22:17:33 -0700 |
| commit | 51aef5d4fc29986353ad887f4a67ed2fe35f8c8e (patch) | |
| tree | 537602d5a0ed6fdae7e4ce8830f3c24a4a87aca5 /src/stm/stm32l.h | |
| parent | 1dcfbb05531767e67df45c2799a2fe533834fb71 (diff) | |
altos: Make STM clock configuration per-product. Fix 32MHz CPU speed
This moves all of the STM clock configuration into ao_pins.h so that
each product can configure it separately. While doing this, I
discovered that the flash memory mode (64-bit, prefetch, latency 1)
wasn't actually getting set, which is why the CPU refused to work at
32MHz.
Signed-off-by: Keith Packard <keithp@keithp.com>
Diffstat (limited to 'src/stm/stm32l.h')
| -rw-r--r-- | src/stm/stm32l.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/stm/stm32l.h b/src/stm/stm32l.h index 39dd710d..b922b6bc 100644 --- a/src/stm/stm32l.h +++ b/src/stm/stm32l.h @@ -303,6 +303,9 @@ struct stm_rcc { extern struct stm_rcc stm_rcc; +/* Nominal high speed internal oscillator frequency is 16MHz */ +#define STM_HSI_FREQ 16000000 + #define STM_RCC_CR_RTCPRE (29) #define STM_RCC_CR_RTCPRE_HSE_DIV_2 0 #define STM_RCC_CR_RTCPRE_HSE_DIV_4 1 |