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global: make sleep immediately return on 0 duration

This commit is contained in:
King Kévin 2019-04-02 19:52:41 +02:00
parent 9220dbeb50
commit 252363cf02
1 changed files with 8 additions and 0 deletions
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8
global.c
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@ -101,6 +101,10 @@ void led_toggle(void)
void sleep_us(uint32_t duration)
{
if (0 == duration) {
return;
}
systick_counter_disable(); // disable SysTick to reconfigure it
if (!systick_set_frequency(1000000, rcc_ahb_frequency)) { // set SysTick frequency to microseconds
while (true); // unhandled error
@ -116,6 +120,10 @@ void sleep_us(uint32_t duration)
void sleep_ms(uint32_t duration)
{
if (0 == duration) {
return;
}
systick_counter_disable(); // disable SysTick to reconfigure it
if (!systick_set_frequency(1000, rcc_ahb_frequency)) { // set SysTick frequency to milliseconds
while (true); // unhandled error