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Re: [N8VEM-S100:4058] My first S100 computer is alive !

Excellent Philippe!


On Sunday, July 6, 2014 4:18:23 PM UTC-5, Philippe Elie wrote:

Hi folks,

I got my serial IO Board running today :) having only an Ithica CPU board, my oscilloscope and open workbench sniffer went quite useful to debug the whole stuff. actually I had not a single problem with the N8VEM SIO board ! the only difficulties went from the CPU board and essentially some mistakes I did in the EPROM code : having no RAM board, I removed all references to memory (including CALL, PUSH, POP, etc) and ended up burning a code limited to sending the monitor signon message and echoing characteres received for the RS232 interface. 
next next is now the 4Mb board, I initially thought the 2nd one would the propeller board, but I think I first need to get some RAM in order to run the monitor appropriately and move to the next level..

Having LOTS of fun !