diff options
Diffstat (limited to 'libmaple/rcc.h')
| -rw-r--r-- | libmaple/rcc.h | 78 |
1 files changed, 65 insertions, 13 deletions
diff --git a/libmaple/rcc.h b/libmaple/rcc.h index e6a28ea..3651945 100644 --- a/libmaple/rcc.h +++ b/libmaple/rcc.h @@ -29,6 +29,48 @@ #ifndef _RCC_H_ #define _RCC_H_ +/* registers */ +#define RCC_BASE 0x40021000 +#define RCC_CR (RCC_BASE + 0x0) +#define RCC_CFGR (RCC_BASE + 0x4) +#define RCC_CIR (RCC_BASE + 0x8) +#define RCC_APB2RSTR (RCC_BASE + 0xC) +#define RCC_APB1RSTR (RCC_BASE + 0x10) +#define RCC_AHBENR (RCC_BASE + 0x14) +#define RCC_APB2ENR (RCC_BASE + 0x18) +#define RCC_APB1ENR (RCC_BASE + 0x1C) +#define RCC_BDCR (RCC_BASE + 0x20) +#define RCC_CSR (RCC_BASE + 0x24) +#define RCC_AHBSTR (RCC_BASE + 0x28) +#define RCC_CFGR2 (RCC_BASE + 0x2C) + +#define RCC_CFGR_USBPRE (0x1 << 22) +#define RCC_CFGR_ADCPRE (0x3 << 14) +#define RCC_CFGR_PPRE1 (0x7 << 8) +#define RCC_CFGR_PPRE2 (0x7 << 11) +#define RCC_CFGR_HPRE (0xF << 4) +#define RCC_CFGR_PLLSRC (0x1 << 16) + +#define RCC_CFGR_SWS (0x3 << 2) +#define RCC_CFGR_SWS_PLL (0x2 << 2) +#define RCC_CFGR_SWS_HSE (0x1 << 2) + +#define RCC_CFGR_SW (0x3 << 0) +#define RCC_CFGR_SW_PLL (0x2 << 0) +#define RCC_CFGR_SW_HSE (0x1 << 0) + +/* CR status bits */ +#define RCC_CR_HSEON (0x1 << 16) +#define RCC_CR_HSERDY (0x1 << 17) +#define RCC_CR_PLLON (0x1 << 24) +#define RCC_CR_PLLRDY (0x1 << 25) + +#define RCC_WRITE_CFGR(val) __write(RCC_CFGR, val) +#define RCC_READ_CFGR() __read(RCC_CFGR) + +#define RCC_WRITE_CR(val) __write(RCC_CR, val) +#define RCC_READ_CR() __read(RCC_CR) + /* sysclk source */ #define RCC_CLKSRC_HSI (0x0) #define RCC_CLKSRC_HSE (0x1) @@ -87,34 +129,45 @@ #define RCC_PLLMUL_15 (0xD << 18) #define RCC_PLLMUL_16 (0xE << 18) -/* device numbers */ + +/* prescalers */ +enum { + RCC_PRESCALER_AHB, + RCC_PRESCALER_APB1, + RCC_PRESCALER_APB2, + RCC_PRESCALER_USB, + RCC_PRESCALER_ADC +}; + +// RCC Devices enum { RCC_GPIOA, RCC_GPIOB, RCC_GPIOC, RCC_GPIOD, + RCC_GPIOE, // High-density devices only (Maple Native) + RCC_GPIOF, // High-density devices only (Maple Native) + RCC_GPIOG, // High-density devices only (Maple Native) RCC_AFIO, RCC_ADC1, + RCC_ADC2, RCC_USART1, RCC_USART2, RCC_USART3, - RCC_USART4, - RCC_USART5, + RCC_USART4, // High-density devices only (Maple Native) + RCC_USART5, // High-density devices only (Maple Native) RCC_TIMER1, RCC_TIMER2, RCC_TIMER3, RCC_TIMER4, + RCC_TIMER5, // High-density devices only (Maple Native) + RCC_TIMER6, // High-density devices only (Maple Native) + RCC_TIMER7, // High-density devices only (Maple Native) + RCC_TIMER8, // High-density devices only (Maple Native) RCC_SPI1, RCC_SPI2, -}; - -/* prescalers */ -enum { - RCC_PRESCALER_AHB, - RCC_PRESCALER_APB1, - RCC_PRESCALER_APB2, - RCC_PRESCALER_USB, - RCC_PRESCALER_ADC + RCC_FSMC, // High-density devices only (Maple Native) + RCC_DAC, // High-density devices only (Maple Native) }; @@ -125,4 +178,3 @@ void rcc_set_prescaler(uint32 prescaler, uint32 divider); #endif - |