I have finally gotten around to setting up the logic analyzer I picked up locally to replace the HP 1652B. It’s a really nice instrument- 136 digital channels, LAN connectivity, keyboard and mouse support, internal mass storage, and some other nice features. Here are some notes on how I set up and used some of the features- they are generally not well documented and there are some modern upgrades we can do to make working with it easier.
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hp 1652b rs232 USB adapter
A while ago, I bought an HP 1652b logic analyzer. It’s a great machine, and works very well for my purposes (monitoring address and data bus for SNES memory usage) and I’m sure it will be invaluable in future projects, especially anything including parallel or serial data transfer. However, the only way to get data off of the analyzer is printing to a dot matrix printer/plotter through an antiquated RS232 or GPIB port. Those aren’t really common or useful anymore, but hopefully that does mean we can capture the data as a digital image for keeping around on our PC. This is a short documentation of my research and application process on creating an adpater to capture the signal on my PC.
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