ChibiOS Free Embedded RTOS

Djuro wrote:Start screen with -L parameter and you will take all comuninaction in log file ( screenlog.0 ).
Example: screen -L /dev/ttyACM0
man screen - for more information.

Thanks.

Jessi

Hi,

I am using the screen on Ubuntu to get a shell to STM32. I was wondering is it possible to write what it displays in the shell to a text file ?
Any suggestion for opening and writing to a file instead of chprintf () ?

Thanks,
Jessi

Giovanni wrote:See halPolledDelay() or gptPolledDelay().

For mS-class delays better use chThdSleepMilliseconds().

Giovanni

Thanks.
I need higher resolution than mS so I think halPolledDelay() works for me.

Jessi

Hi,

It is possible but the delay would degrade the realtime performance of the system because no preemption could occur during the lock.

BTW, something similar is already present in the GPT driver, see gptPolledDelay().

Giovanni

Hi,

Thanks for your reply,
Is there anyway to implement a high ...

What is locked after using chSysLock(); ?

Is it possible to make a user defined sleep using chSysLock() and a timer ? (Suppose the timer is already initialized)

void UDSleep (unsigned int sleepDelay){
TIM_SetCounter(TIM2, 0);
TIM_Cmd(TIM2, ENABLE);
chSysLock();
while (TIM_GetCounter(TIM2 ...

Tectu wrote:

Jessica wrote:Where is the repository?

http://chibios.org/dokuwiki/doku.php?id ... s:download


~ Tectu

Thank you.

Giovanni wrote:Hi,

CH_FREQUENCY should allow you to convert. The version in the repository has new macros for this. 2.6.2 should be released next week with the new macros.

Giovanni

Thanks for your reply,
I think CH_FREQUENCY is a defined constant. How can I use it?
Where is the repository?

Hello,

I need to measure the execution time of a function ( function1() ) in milliseconds and print it. I wrote this code but it just gives me the system ticks. I need milliseconds.

systime_t start,stop, final;
start = chTimeNow();
function ();
stop = chTimeNow();
final = stop - start;
chprintf ...