Hi Simon,
I'm not the timer expert, but to reliably get a 100 ns resolution sounds
rather tough an a system that runs with 170MHz [1].
I think there's not too much air between xtimer and the bare silicon.
You can have a look into the timer configuration [2] and the timer
interrupts [3] of your board.
But I guess this is not what you want.
Best regards,
Martin
[1] https://github.com/RIOT-OS/RIOT/wiki/Board%3A-STM32F4discovery
[2]
https://github.com/RIOT-OS/RIOT/blob/master/boards/stm32f4discovery/include/periph_conf.h#L53
[3]
https://github.com/RIOT-OS/RIOT/blob/master/cpu/stm32f4/periph/timer.c#L288
Am 02/16/2016 um 05:17 PM schrieb Simon Brummer:
Hi Everybody,
I'll try to write a driver for a programmable RGB-Ledstripe. To
programm the timing for the Ledstripe I need a timerresolution of 100
ns. As far as I can see, xtimer features only a 1 µs resolution. Is
there a way to adjust xtimers resolution or is there another way to use
timers in a generic way?
My Project runs on a stm32f4 discovery board.
Simon
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