A/D interrupt | Freescale DSPs

Technical discussions about Freescale (Motorola) DSPs (including the DSP56000, DSP56300, DSP56600, 56800 DSPs).

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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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! _____________________________________ /groups.php3 Yahoo! Groups Links

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Discussion Groups | Freescale DSPs | A/D interrupt

A/D interrupt - Elefante Alessandro - Mar 3 7:52:00 2004

RE: A/D interrupt - Christian Brauchli - Mar 3 12:31:00 2004