paravia@csd4.milw.wisc.edu (Mark David Kakatsch) (03/22/89)
Is anyone here familiar with the Jade S-100 serial/parallel card? I've just fixed my brand new S-100 system after 2 months of work, and I've managed to get everything working; except the serial card. This is VERY frustrating, seeing as when I boot my system, I see CPM v. 1.4 etc... on my video screen, and I can't do anything else except stare at it because I can't type anything! I have no idea what the problem is, I've detected pulses at the serial input whenever I press a key; however, the DATA AVAILABLE line stays high, and RECIEVE DATA AVAILABLE' won't go low to reset DAV...Another thing is, I wrote a simple test program to output a stream of A's to the port, along with the control port data. Because I used a simple loop(I'm not too famailiar w/ Z80 m/l.), the control data is continuously outputted to the port. However, I can't detect a pulse on CONTROL STROBE', meaning that it is not getting the data. The only cause that I can think of is that I have the port address set wrong. However, I've checked, double checked, and rechecked the port switches, and they are set right. If anyone can help me on this, I will TRULY appreciate it. It's very frustrating to get 10 S-100 cards working, and be stuck on one little serial card... Mark +-----------------------------------------------------------------------------+ + Things are not what |Albert Einstein got his name after he got smashed + + they appear to be... |after drinking one stien of beer. Hence; Albert + +________________________|EinStein.___________________________________________+ + Ack! Ack! Ack! Ack! Ack! |Mark D. Kakatsch --> paravia@csd4.milw.wisc.edu + + Pfhtph! Pfhtpph! Pfhtpf! | uwmcsd1!uwmcsd4!paravia + +-----------------------------------------------------------------------------+