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Josh/Don,
I was gathering parts for my build & I have some questions about possible errors with the BOM for the 8080 CPU board. 1) I see that RP2 is now listed as a 47K network (was formerly a 4.7K network) but I did not see that change documented anywhere. I realize that the value of RP3 changed as documented in ECO#3 but I found nothing about RP2. 2) IC E6 is now listed as a 74LS90 in the BOM but it is a 74LS390 in the schematic, in the original parts list in the manual & on the board silkscreen. The LS390 is a dual counter an is a 16 pin dip while the LS90 is a single counter in a 14 pin dip. 3) I didn't see the recommended crystal X1 (18.432mhz) is not listed in either the original parts list or the updated BOM. I was just going to pick the one that Mouser has in stock. Thanks for all you are both doing for this project. I am look forward to this build as well as as the Mini-FP board. Regards, Jeff Galinat On 8/2/2014 3:43 PM, Crusty OMO wrote:
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