EPROM Pin Swapper

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l_oliveira
Posts: 404
Joined: Wed Jul 13, 2011 6:51 am
Location: Brasilia, Brazil

Re: EPROM Pin Swapper

Post by l_oliveira » Sun Jul 07, 2013 7:33 am

wyndcrosser wrote:Just to confirm. This would like me change the what the pins do, instead of having to re-wire correct?
It scrambles the file so whatever you program on the eprom matches the pinout you programmed on the program UI after programming the chip.

This would allow one to program a flash memory with scrambled pinout. You can't rearrange the pinout of a flash chip before programming as the programmer has to issue commands to the chip for the flashing to happen. Re-wiring would disrupt the flashing due to that.

tepples
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Location: NE Indiana, USA (NTSC)
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Re: EPROM Pin Swapper

Post by tepples » Sun Jul 07, 2013 9:00 am

It can't swap control lines, nor can it swap address with data. But l_oliveira is right about what it does: it scrambles the data within the file to make routing easier once the memory is soldered down. (Here, "routing" can refer to traces on a new PCB, or it can refer to rewire jobs when using flash memory in a slot for a mask ROM on a donor PCB.)

Kayumba
Posts: 87
Joined: Sun Mar 01, 2020 2:36 am

Re: EPROM Pin Swapper

Post by Kayumba » Sun May 31, 2020 5:19 pm

Link is dead :(

lidnariq
Posts: 9655
Joined: Sun Apr 13, 2008 11:12 am
Location: Seattle

Re: EPROM Pin Swapper

Post by lidnariq » Sun May 31, 2020 6:01 pm

Download of version 1.2 in this thread works for me.

Version 1.0 (but not version 1.2) was also posted on RHDN.

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