ROM switching:

Using, learning, programming and modding the Gigatron and anything related.
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at67
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Joined: 14 May 2018, 08:29

Re: ROM switching:

Post by at67 »

When switching ROM's, unless the current native code path is the same, (between the previous ROM and the new ROM), the Gigatron will most certainly have timing issues and/or most likely crash.

You will need some sort of reset to initialise the PC to 0x0000.
Hans61
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Re: ROM switching:

Post by Hans61 »

I fear it too. I will test it. In that case, I think it would be good to add a reset button to the Gigatron in general. Then the MCP131 with a button against GND at the output, would be an alternative. At reset bouncing should not be a problem (I think).
at67
Site Admin
Posts: 647
Joined: 14 May 2018, 08:29

Re: ROM switching:

Post by at67 »

You'll probably get away with no de-bouncing, but it is poor design practice; you'll be resetting the 161's multiple times, at the mercy of whatever switch you decide to use.
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