| Electronics > Projects, Designs, and Technical Stuff |
| Z80 Single (Perf)Board Computer |
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| obiwanjacobi:
I could program my GALs with the MiniPro TL866. |
| grumpydoc:
--- Quote from: obiwanjacobi on April 03, 2017, 07:39:25 am ---I could program my GALs with the MiniPro TL866. --- End quote --- In theory I can program them with my Dataman S4 but I don't have the necessary adapter which costs about 4x what it would cost to build one. Sadly Dataman don't publish the circuit Maybe I will keep an eye out on eBay. |
| technix:
--- Quote from: grumpydoc on April 03, 2017, 08:56:05 am --- --- Quote from: obiwanjacobi on April 03, 2017, 07:39:25 am ---I could program my GALs with the MiniPro TL866. --- End quote --- In theory I can program them with my Dataman S4 but I don't have the necessary adapter which costs about 4x what it would cost to build one. Sadly Dataman don't publish the circuit Maybe I will keep an eye out on eBay. --- End quote --- Since you are okay with PLCC, maybe try MAX7000 series CPLD from Altera. Those are 5V Flash-based parts and they can be reprogrammed in circuit using JTAG and a USB Blaster. |
| spudboy488:
The MAX3000 series are also 5V tolerant and less expensive. I use them all the time for glue logic to save board space or if I'm not 100% sure how the circuit will end up functioning. It's like having programmable copper. |
| grumpydoc:
--- Quote from: obiwanjacobi on April 02, 2017, 05:53:35 am ---That is pretty tight. Are you sure you will be able to connect it all? Other than that, very nice. :-+ --- End quote --- Starting to look like everything will go on the board OK Current plan, the layout has needed a few more minor tweaks. +5V routing added and gate connections as it makes it easier to wire it up. I just print out the layout A4 sized and work from that. Hmmm, just realised I don't have +5V on the right edge of the board for the TTL level serial port and the parallel port connectors. Could be tricky to get it across. |
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