Unverified Commit 02168c86 authored by Birte Kristina Friesel's avatar Birte Kristina Friesel
Browse files

stm32f7: slightly un-break delay_us and delay_ms

parent 8d38d364

src/arch/stm32f746zg-nucleo/arch.cc

+7 −5
Original line number Diff line number Diff line
@@ -64,19 +64,21 @@ extern void loop(); 
volatile char run_loop = 0;

#endif



// for 216 MHz(?)

static volatile int delay_counter;

// horribly broken

void Arch::delay_us(unsigned int const us)

{

	volatile int x = us * 145;

	while (x--) {

	delay_counter = us * 37;

	while (delay_counter--) {

		__asm("nop");

	}

}

// horribly broken

void Arch::delay_ms(unsigned int const ms)

{

	for (unsigned int i = 0; i < ms; i++) {

		volatile int x = 143990;

		while (x--) {

		delay_counter = 36364;

		while (delay_counter--) {

			__asm("nop");

		}

	}