diff options
Diffstat (limited to 'src/stm32/stm32f4.c')
| -rw-r--r-- | src/stm32/stm32f4.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/stm32/stm32f4.c b/src/stm32/stm32f4.c index fd3eb0ba..e5beabee 100644 --- a/src/stm32/stm32f4.c +++ b/src/stm32/stm32f4.c @@ -57,6 +57,11 @@ gpio_clock_enable(GPIO_TypeDef *regs) RCC->AHB1ENR; } +// PLL (f207) input: 0.95 to 2.1Mhz, vco: 192 to 432Mhz, output: 24 to 120Mhz +// PLL (f401) input: 0.95 to 2.1Mhz, vco: 192 to 432Mhz, output: 24 to 84Mhz +// PLL (f405/7) input: 0.95 to 2.1Mhz, vco: 100 to 432Mhz, output: 24 to 168Mhz +// PLL (f446) input: 0.95 to 2.1Mhz, vco: 100 to 432Mhz, output: 12.5 to 180Mhz + #if !CONFIG_STM32_CLOCK_REF_INTERNAL DECL_CONSTANT_STR("RESERVE_PINS_crystal", "PH0,PH1"); #endif |