Den Mon, 30 Apr 2018 15:00:41 +0200 skrev Michał Pleban <lists@michau.name>: > Hello! > > Mia Magnusson wrote: > > > My intention is to find some kind of suitable software for timing > > diagrams (I was first thinking about project management software, > > but there seems to be software especially made for thins purpose). > > Why not simply attaching a logic analyzer to various signals and > measure what the real hardware does? Everything is made of standard 74xx circuits and standard DRAM's (except the CPU and the CRTC) and it would be really nice to know that the maximum and minimum delays is for each part of the circuit. (The 6525's doesen't count in this discussion as their timing isn't critical to understanding how the complicated CPU-RAM-Refresh-Coprocessor stuff works). I wounder if anyone who designed or in general worked with the hardware on theese machines at Commodore are still alive and remembers some stuff? For example it would be nice to know why some signals are called PUP1 and PUP2. -- (\_/) Copy the bunny to your mails to help (O.o) him achieve world domination. (> <) Come join the dark side. /_|_\ We have cookies.Received on 2018-04-30 20:00:02
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