diff options
| author | Keith Packard <keithp@keithp.com> | 2018-10-13 07:50:59 -0700 |
|---|---|---|
| committer | Keith Packard <keithp@keithp.com> | 2018-10-13 07:50:59 -0700 |
| commit | 803c68d7933d03aaebda19786b63055d4a6d3d22 (patch) | |
| tree | 6257a15fdb96f21ea9f860b8fc638bd7b082b1a0 /src | |
| parent | e830d803d3e289f0f1a6d92ce208682af28d3f52 (diff) | |
altos/stm: Make flash loader work with either 8MHz or 16MHz xtal
Provide PLL definitions for both values.
Signed-off-by: Keith Packard <keithp@keithp.com>
Diffstat (limited to 'src')
| -rw-r--r-- | src/stm/ao_flash_stm_pins.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/src/stm/ao_flash_stm_pins.h b/src/stm/ao_flash_stm_pins.h index d5893c80..b82046d7 100644 --- a/src/stm/ao_flash_stm_pins.h +++ b/src/stm/ao_flash_stm_pins.h @@ -21,6 +21,10 @@ #include <ao_flash_pins.h> +#ifndef AO_PLLMUL + +#if AO_HSE == 8000000 + /* PLLVCO = 96MHz (so that USB will work) */ #define AO_PLLMUL 12 #define AO_RCC_CFGR_PLLMUL (STM_RCC_CFGR_PLLMUL_12) @@ -29,6 +33,22 @@ #define AO_PLLDIV 3 #define AO_RCC_CFGR_PLLDIV (STM_RCC_CFGR_PLLDIV_3) +#endif + +#if AO_HSE == 16000000 + +/* PLLVCO = 96MHz (so that USB will work) */ +#define AO_PLLMUL 6 +#define AO_RCC_CFGR_PLLMUL (STM_RCC_CFGR_PLLMUL_6) + +/* SYSCLK = 32MHz */ +#define AO_PLLDIV 3 +#define AO_RCC_CFGR_PLLDIV (STM_RCC_CFGR_PLLDIV_3) + +#endif + +#endif + /* HCLK = 32MHZ (CPU clock) */ #define AO_AHB_PRESCALER 1 #define AO_RCC_CFGR_HPRE_DIV STM_RCC_CFGR_HPRE_DIV_1 |