I've just completed an AtoD convertor using the ADC0809 eight bit convertor chip. I can address it and do data in/out from the Lpt1 port. It all works out Ok as electronics is my forte' but I'm a little weak in the programming department. I've come up with a program written in Quick Basic which is but a glorified three Channel oscilloscope. It uses PSET and LINE statements to graph it all out. I also have routines to scale the data from the ADC input and also control the horizonal sweep speed. The speed however is not calibrated to any thing. How do I go about taking a reading twenty times a second ? and do all the other program house keeping without these other chores impacting the sampling rate ? Is there an answer out there ? singed, anxiety's child Casey ________________________________________________________________ GET INTERNET ACCESS FROM JUNO! Juno offers FREE or PREMIUM Internet access for less! Join Juno today! For your FREE software, visit: http://dl.www.juno.com/get/tagj. __________________________________________________________ Public Seismic Network Mailing List (PSN-L)
Larry Cochrane <cochrane@..............>