Stm32f103c8t6 TIM1, where 1ms is mandatory. I need a Ticker of 0.01ms or 0.001ms, to be able to discount with the time of the routines to increment / show the time in a serial display / 32bits. Bravos

[T J]

Maybe that was a little to brief....

Please start with the serial display, does that have a chip ? 5450 type?

Do you want to increment/decrement a displayed timer ?

Do you need 1mS and 1uSec timers?

Do you want to diplay time ?

[A Bravos]

Thanks for the answer...

the serial display is an old ucn5833a.

I want to increase or decrease time, I need precise timer.

If I have a 1us timer I easily transcode it into a 1ms timer, I think ...

While working only 0.1s.

To view final time or send by uart, here yes with the precision of 1ms, of type xx.xx.xx.xxx

Thank you one more time

[Tesla DeLorean]

You could look at DWT_CYCCNT it is 32-bit wide, and free runs at 32-bit, at 72 MHz that would wrap in about a minute.

There is also the SYSTICK counter, it is 24-bit and counts down.

[henry.dick]

"I need a Ticker of 0.01ms or 0.001ms"

if you meant that you wanted to have interrupts at 10us or 1us, you just need ST to make a MCU that runs at 100 or 1000x of their current offerings.

if you meant that you wanted to have a timer with 10us or 1us resolution, plenty of easy solutions.