1kHz timer behavior on Cyclone V

Thomas Doerfler (nt) Thomas.Doerfler at imd-systems.de
Fri Dec 9 06:58:45 UTC 2016


it's even worse: since the transfer of one character (8 bits) requires a
leading startbit and a trailing stopbit (= total of 10 bits), you can
only print 11.52 characters per 1ms.

Am 09.12.2016 um 07:48 schrieb Sebastian Huber:
> Hello Janet,
> a printk() inside an ISR is quite bad. Lets assume it uses a serial
> line with 115200 bits per second, then you can print 14.4 characters
> per 1ms.

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