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A/D interrupt

Started by Elefante Alessandro March 3, 2004
HI,
I work with DSP56F807.I sample two signals with two different
A/D (T-sample=2us). Is it possible to minimize C code that control the
A/D interrupt routine( to read the FIFO) in order to manage interrupt
priority( and the interrupt time)?
Ciao .
Thank you thousands!




Hi Alessandro,

In order to save all the values read from the AD in a sampling rate of 2us
with 1 channel, you should implement this function in assembly.

If you use the SDK Interrupt Handler with CDW5.x it takes 1-2us just for the
Interrupt-Handler -Overhead. So just this interrupt will use more or less
100% CPU Ressources.

regards Christian Brauchli
Manager R&D
_________________________________________________________________
Brauchli Netsolution Berg Tel. +41 / 71 638 00 45
Industrial Electronic Fax. +41 / 71 638 00 46
Bahnhofstrasse 7 Mobile. +41 / 78 616 22 14
CH- 8572 Berg email.
Switzerland web. www.brauchli-netsolution.ch

-----Original Message-----
From: Elefante Alessandro [mailto:]
Sent: Mittwoch, 3. Marz 2004 08:52
To:
Subject: [motoroladsp] A/D interrupt HI,
I work with DSP56F807.I sample two signals with two different
A/D (T-sample=2us). Is it possible to minimize C code that control the
A/D interrupt routine( to read the FIFO) in order to manage interrupt
priority( and the interrupt time)?
Ciao .
Thank you thousands!
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