Eprommer woes (There, I fixied it).

[os62]

So, I bought a new eprommer to do kickstart ROMs. After the purchase, I realized the programmer doesn't support 27C400 style weird pin order! oh:

Not wanting to buy a programmer after programmer, I thought I might have some spare bits laying around the house, so:

Taking signature check off, the MiniPro now does 27C400 where it thinks it does 27C4096. Solved.

MiniPro software requires a byteswap for 68nnn, though, which its software doesn't directly do, so external utilities are on the way, or data line swap.

For anyone needing to repeat it, probably in a way nicer way and parts, this is what I used:

27C4096 pins, 27C400 socket:
1,31
2,10
3,29
4,27
5,25
6,23
7,20
8,18
9,16
10,14
11,11
12,28
13,26
14,24
15,22
16,19
17,17
18,15
19,13
20,12
21,9
22,8
23,7
24,6
25,5
26,4
27,3
28,2
29,40
30,30
31,39
32,38
33,37
34,36
35,35
36,34
37,33
38,32
39,1
40,21

 

[Merlin]

Ghetto hackery FTW!!!

 

[vibros]

Hello,

many thanks, i will try to made an adapter!

Regards
Stefano

 

[os62]

yeah, just checked; did a working ks 3.1.

 

[FaSMaN]

Hmm Ive got the exact same programmer, will have to bare that in mind, thank you

 

[Jazzmarazz]

Haha, I had to do he same thing while dumping a prom found in my midi to floppy backup device. The prom was very obscure so I tricked my willem into thinking it was something else.

 

[vibros]

Hello,

i have made the adapter but only today i have realized that my Eprommer has full support for the 27C400 parts icard
So i have tested the adapter with the read function and the result is the same, that means that the adapter is right!

Regards
Stefano