Thanks! That's a start. The hardware people just built another unit and everything started working, so I may not need to do some deep SPI recording... But, I'll keep your notes and adapt them to my needs should the need arise! Thanks! Harold FCC Rules Online at http://www.hallikainen.com/FccRules/ --- Brian Clewer wrote: Harold, I have some source code on my site which enables you to display the contents of the parallel port on the screen FWIW. It's written in Borland C with lots of comments. http://www3.mistral.co.uk/brian.clewer/code.htm Regards, Brian -----Original Message----- From: pic microcontroller discussion list [mailto:PICLIST@MITVMA.MIT.EDU]On Behalf Of Harold Hallikainen Sent: 10 June 2003 19:25 To: PICLIST@MITVMA.MIT.EDU Subject: [PIC]: PC based transition recorder? Resending with tag! Anyone have a DOS program that I could use as a data transition recorder? I wrote one a long time ago (under CP/M). I want to watch a parallel port (in input mode) for changes on the 8 data lines. On any change, the new value would be stored in memory. When the program is stopped, the data would be saved to disk as 8 bit binary, eight ones and zeroes per line. I could then print the whole mess out and see a long string of SPI commands. Or, any other sort of SPI monitor would be great! THANKS! Harold FCC Rules Online at http://www.hallikainen.com/FccRules/ ________________________________________________________________ The best thing to hit the internet in years - Juno SpeedBand! Surf the web up to FIVE TIMES FASTER! Only $14.95/ month - visit www.juno.com to sign up today! -- http://www.piclist.com hint: To leave the PICList mailto:piclist-unsubscribe-request@mitvma.mit.edu -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads ________________________________________________________________ The best thing to hit the internet in years - Juno SpeedBand! Surf the web up to FIVE TIMES FASTER! Only $14.95/ month - visit www.juno.com to sign up today! -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads