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| author | Josh Rahm <joshuarahm@gmail.com> | 2018-01-22 00:14:20 -0700 |
|---|---|---|
| committer | Josh Rahm <joshuarahm@gmail.com> | 2018-01-22 00:14:20 -0700 |
| commit | af0244fb51ccb608440128d0f3303ccce77c14c2 (patch) | |
| tree | 4b6057fe3c3029ee4b4602e690917859c6011599 /usart/src/delay.c | |
| parent | 2dcbbea5fe1e2342ce4700b3ee8dce44a360a888 (diff) | |
| download | stm32l4-af0244fb51ccb608440128d0f3303ccce77c14c2.tar.gz stm32l4-af0244fb51ccb608440128d0f3303ccce77c14c2.tar.bz2 stm32l4-af0244fb51ccb608440128d0f3303ccce77c14c2.zip | |
VERY simple USART set up on USART2.
Diffstat (limited to 'usart/src/delay.c')
| -rw-r--r-- | usart/src/delay.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/usart/src/delay.c b/usart/src/delay.c new file mode 100644 index 0000000..2a16d47 --- /dev/null +++ b/usart/src/delay.c @@ -0,0 +1,9 @@ +#include "delay.h" + +void delay(uint32_t delay) +{ + while (delay--) { + /* needed to keep the compiler from optimizing away the loop. */ + asm volatile(""); + } +} |