Programming PLA/GAL/CPLDs with tait programmer

[takane]

I've built a tait based serial programmer to program microcontrols and
eeproms. I used the plans from here in case anyones interested
http://www.semis.demon.co.uk/Pics/PICmain.htm. I would like to be able
to program some PLA/GALs with it. I know lattice and several other
companies have ISP support. Looking at lattices programmig docs, I see
that it uses full duplex serial but I could easily modify my programmer
to be able to switch between full and half duplex data output. Is there
any software out there that would support this programmer? I doubt the
stuff the chip manufactureers provide would support a homebuilt
programmer.(espicially since I'd need the dta and clock lines inverted
although I could do this my self.)

 

[Ken Smith]

In article <1123600687.510586.44860@f14g2000cwb.googlegroups.com>,
takane <takane2@aol.com> wrote:

I've built a tait based serial programmer to program microcontrols and
eeproms. I used the plans from here in case anyones interested
http://www.semis.demon.co.uk/Pics/PICmain.htm. I would like to be able
to program some PLA/GALs with it. I know lattice and several other
companies have ISP support. Looking at lattices programmig docs, I see
that it uses full duplex serial but I could easily modify my programmer
to be able to switch between full and half duplex data output. Is there
any software out there that would support this programmer? I doubt the
stuff the chip manufactureers provide would support a homebuilt
programmer.(espicially since I'd need the dta and clock lines inverted
although I could do this my self.)

Have a look at the JAM players. You can get the source code for them[1].
Many development tools will write a JAM file. If you change the hardware
interface part of the JAM player, you will then be compatible with all of
those.

[1]If you can't find it with google e-mail me and I'll send you the
source.


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