Module lm4f120::systick

Systick for the LM4F120

This just wraps the generic Cortex-M4 systick, but it understands the PLL clock rate (which the generic code cannot)

Re-exports

pub use super::cortex_m4f::systick::*;

Constants

SYSTICK_CLOCK	SysTick runs at / 4, so at 16MHz that's 4MHz
SYSTICK_CLOCK_PER_US	At 4MHz, four ticks per microseconds.

Functions

delay	Busy-waits for the given period.
delay_usec	Busy-waits a specified number of microseconds. usec must be less than 2**22 otherwise SysTick will overflow.
run_time_us	How long since the system booted in microseconds. The u64 is good for 584,000 years.
ticks_to_usecs	Converts from SysTicks to microseconds
usecs_to_ticks	Converts from microseconds to SysTicks