rcc.c File Reference

#include <libopencm3/lm4f/rcc.h>

Include dependency graph for rcc.c:

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Functions
void	rcc_configure_xtal (enum xtal_t xtal)
	Configure the crystal type connected to the device. More...
void	rcc_disable_main_osc (void)
	Disable the main oscillator. More...
void	rcc_disable_interal_osc (void)
	Disable the internal oscillator. More...
void	rcc_enable_main_osc (void)
	Enable the main oscillator. More...
void	rcc_enable_interal_osc (void)
	Enable the internal oscillator. More...
void	rcc_enable_rcc2 (void)
	Enable the use of SYSCTL_RCC2 register for clock control. More...
void	rcc_pll_off (void)
	Power down the main PLL. More...
void	rcc_pll_on (void)
	Power up the main PLL. More...
void	rcc_set_osc_source (enum osc_src src)
	Set the oscillator source to be used by the system clock. More...
void	rcc_pll_bypass_disable (void)
	Disable the PLL bypass and use the PLL clock. More...
void	rcc_pll_bypass_enable (void)
	Enable the PLL bypass and use the oscillator clock. More...
void	rcc_set_pll_divisor (uint8_t div400)
	Set the PLL clock divisor (from 400MHz) More...
void	rcc_set_pwm_divisor (enum pwm_clkdiv div)
	Set the PWM unit clock divisor. More...
void	rcc_usb_pll_off (void)
	Power down the USB PLL. More...
void	rcc_usb_pll_on (void)
	Power up the USB PLL. More...
void	rcc_wait_for_pll_ready (void)
	Wait for main PLL to lock. More...
void	rcc_change_pll_divisor (uint8_t pll_div400)
	Change the PLL divisor. More...
uint32_t	rcc_get_system_clock_frequency (void)
	Get the system clock frequency. More...
static uint32_t	xtal_to_freq (enum xtal_t xtal)
void	rcc_sysclk_config (enum osc_src src, enum xtal_t xtal, uint8_t pll_div400)
	Configure the system clock source. More...

Variables
uint32_t	lm4f_rcc_sysclk_freq = 16000000
	System clock frequency. More...