HP48GX RAM card design
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06-10-2017, 11:06 PM
Post: #1
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HP48GX RAM card design
Hello All,
For anyone interested in making their own RAM cards for HP48GX calculators, I have just uploaded a KiCAD design on which I've recently been working. The design files are hosted in a git repository at:- https://bitbucket.org/cloudycat/rc48-512/overview along with a small amount of documentation. As you can see from the README, I have built two of the cards myself and have been using them for the past few weeks with no major problems so far. The files are released under a CC-BY-SA licence which essentially means that any use can be made of them as long as modifications are also released under the same licence. Obviously I cannot give any guarantees as to the correctness of the design or fitness for purpose (particularly as the information I found on the net about this was incomplete and sometimes inconsistent). Nevertheless, I had enough faith in the design to consider it worth the risk with my one and only HP48GX calculator! Any comments welcome, Paul |
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