ChibiOS Free Embedded RTOS

And it does'nt effect the performance of chibios ?? if i put a delaymicroseconds() in a thead ?.
i need those information because i"m building a quadcopter so i have to know what danger and what's safe

what do you mean by polled delay function ??.

Hinthanks for this detailed answer, polled delay function you mean the oroginal funcion of arduino like delaymicroseconds() ??

thaks for this anwer but i change the systick frequency from 1000 to 1000000 , but the resolution is always 1m. i have arduino due 32bit arm cortex m3.
please how can i control the microseconds

ok, i have another probleme using chThdSleepMicroseconds();

on arduino i did
this code
void setup() {
// initialize digital pin 7 as an output.
pinMode(7, OUTPUT);
}

// the loop function runs over and over again forever
void loop() {
digitalWrite(7, HIGH); // turn the LED on (HIGH is the ...

Hi, i tried to change CH_CFG_ST_FREQUENCY 1000 to 10 but the chVTGetSystemTime() still reseting
i'm using the arduino library for arm.
how do i resolve that please

Do you mean that i change the #define CH_CFG_ST_FREQUENCY 1000 to 10 ??

Hi, tehre i'm faceing a big problem. the chVTGetSystemTime() restarts every 4 seconds !!!
i want the chVTGetSystemTime() don't restart.
i read a post who hase the same problem and Mr Giovanni said, that the tickless mode should be disabled ??? but i d'ont know how to find the option and diseable it ...

Merci, thanks
and how who cause this perturbation, how we avoid jitter or how we resolve this situation

Can you give me more detail ?? can you give me an example