Mike's PCjr Page

Hope to have it running by summer

Anyone ever tried to get A version of Win.3.x running on the Jr
Using the JR-IDE ???

here is a final closeout for this thread... referring to the two screen shots below Before and After: ( Without the Termination resistors and With them ) Using a 390ohm Pullup and 470ohm Pull down (resistor divider type circuit) we are looking at (1) of the data lines D0 on the JR Bus. I did look at...

Update: After using some termination resistors on the DATA 0-7 lines the JR-IDE Board has started booting ok in SLOT2. I will stick a scope on this tonight and take a look at that Before and after signal with the termination and without... I've updated my PCB to include the Termination in the next s...

shoot me an email I will help you out
chuck]
pcjr@terradock.com

Update: Went to McDonalds for breakfast, and sittin there was Thinking about the bus loading and possible signal issues with multiple sidecars, so I decided to try another experiment. SLOT 1 - Parallel sidecar SLOT 2 - JRIDE SLOT 3 - Another Parallel Side car I did this to possibly determine if the ...

Jason, there is a write up on Mikes pages for the bi-dir mod, if you have questions let me know... Also stick the V20 in it gives a nice pop in speed. I have not experienced the Basic issue on boot up, but it may be better to just go into Basica or GWbasic and get more features. I also have the PS2 ...

Just a side note here ... Also wanted to add, after contemplating this a bit more, I have had some issues with the JRIDE SLOT1 and ParPort sidecar in SLOT2 where my ZIP Drive would not find the ParPort at boot up. Using LPT_test also showed the ParPort was not active. Re-boot would usually fix this ...

I've recently been playing with my original (Alan design) JR-IDE on two working systems I use. The original setup was JR-IDE plugged into Jr case, then Par.Port side car on the outside.. This setup has worked good for months... I pulled off the two side cars and reinstalled, different order with dif...

I don't remember an LHARC.... but do know that ARC51 was a big fav. of mine back then and still have some files
that are arc'd..