time management stm32l discovery

[simval986]

Posted on July 29, 2014 at 18:45

Hi 

I am working for

a project with

the

stm32ldiscovery

but

I have a problem

:

the Delay function

that

I implemented

in my program

is not working

void Delay(uint32_t nTime) {

TimingDelay = nTime; while (TimingDelay != 0); }

void TimingDelay_Decrement(void) {

if (TimingDelay !=0x00) { TimingDelay--;     } }

Certainly

omit

some

initialization operation

necessary

for

its proper functioning

Can anyone

help me?

Thank you

.

[Tesla DeLorean]

Posted on July 29, 2014 at 18:59

Certainly

omit

some

initialization operation

necessary

for

its proper functioning

Can anyone

help me?

Thank you

.

So did you implement a SysTick interrupt calling the function, and configure the SysTick? The variable would need to be volatile, and the delay wouldn't be interrupt safe.

[simval986]

Posted on July 30, 2014 at 14:27

Hi clive1

, thanks for

your

interest

.

I solved the

problem.

I do not know

why in

 

the file

stm32l1xx_it.h

was

commented

the line of code

that did not allow

the operation of the

Delay function

.

practically

:

void SysTick_Handler(void) {     //TimingDelay_Decrement(); }