Dave, I do remember in the Wilcox book there was comment about one "kludge" to take care of one S100 signal. Unfortunately cannot remember which one, but it did require a cap+resistor stretcher as an input to one gate. It's illustrated in the boards overall circuit pages near the end of the book.
John
John Monahan (mon...@vitasoft.org)
Dave I have not had a problem with that board with the Propeller Console IO board at all. Have not run it with the IDE board. That said I could only get about 6MHz out of a 10Hz chip. I know Todd is about to order another batch, we should resolve this ASAP
I'm MIA for two weeks unfortunately
JohnJohn Monahan (mon...@vitasoft.org)
On Jun 28, 2014 3:32 PM, "yoda" <yo...@r2d2.org> wrote:Hi--Wondering if people have been using the 68K board. I think I have timing issue because pWR* is going HI at the same time the data is being released. You can see this in attached LA capture. I think that is why I am not getting characters from the prop console and probably explains why I have not gotten reliable data from the IDE card either. The dual serial card and memory work just fine. I have tried different clocks as well - this one is at 2MHz so that should not be the issue. Was wondering if someone had seen this and resolved. I will dig through the schematics and the Wilcox book as well. I think once I have this resolved, I can get CP/M 68K going.Thanks in advanceDave
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