[time-nuts] Linux PPS clues?
David J Taylor
david-taylor at blueyonder.co.uk
Thu Oct 20 05:59:21 EDT 2016
From: Attila Kinali
Yes, but in embedded there are huge differences between the various
boards and processors. While an rpi is a great device if you want
to do graphics based stuff, it's a very poor choice for control
and measurment applications, or anything that needs fast I/O
Actually, of the 15 Raspberry Pi cards I have only one is used in a graphics
On the positive side they work very well with external devices for control
and measurement, and have a huge amount of software and hardware support for
a vast range of devices which makes for fast and easy development. On the
negative side, certainly they are not the fastest of devices, although the
current quad-core RPi3 is capable of handling thousands of messages per
second, and having Ethernet over USB won't give the lowest jitter if
sub-millisecond timing is important.
I will be interested to see what is recommended for a 100 kHz event rate.
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Email: david-taylor at blueyonder.co.uk
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