Hi all, as a result of my tests with capture and compare working together, i get the following answers: 1) capture module is working with all configurations of the compare module 2) compare module is working with generate interrupt on match only 3) compare module is working with set/clear output on match only if timer1 is not stopped temporarely Case 3 was my big mistake. I've stopped timer1 in the capture service routine for reading him. I have contacted my local FAE for further information (from Microchip?). Thanks to the great piclist community. Frank --------------------------- GSP Sprachtechnologie GmbH Frank Wollenberg HW-Entwicklung Tel.: +49 (0)30 769929-78 Fax: +49 (0)30 769929-12 eMail: f.wollenberg@gsp-berlin.de -- GSP Sprachtechnologie GmbH Teltowkanalstr.1, D-12247 Berlin Tel.: +49 (0)30 769929-0 Fax: +49 (0)30 769929-12 eMail: Info@gsp-berlin.de Web: http://www.gsp-berlin.de -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics