From af0244fb51ccb608440128d0f3303ccce77c14c2 Mon Sep 17 00:00:00 2001 From: Josh Rahm Date: Mon, 22 Jan 2018 00:14:20 -0700 Subject: VERY simple USART set up on USART2. --- usart/src/delay.c | 9 +++++++++ 1 file changed, 9 insertions(+) create mode 100644 usart/src/delay.c (limited to 'usart/src/delay.c') 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(""); + } +} -- cgit