eprom reader
kasamiko, good to hear that!! It worked a treat for me too, these people who write programs like 'ponyprog' and 'IC-prog' are very clever people (and its all free!)
I believe the Jumper (JP1) is a 'write protect' test. Pin 7 of the 24cxx series eeproms is hardwired to ground to prevent its contents being over-written, so I guess the jumper is there to test this. To write to the chip, pin 7 must be pulled up.
The SPI/Microwire interface is on the ponyprog website, theres a link for it about half-way down, but here's the URL
http://www.lancos.com/siprogsch.html
This is a base board, to which various 'dongles' can be attached to program different devices. At first glance, it seems you won't need the 'external power' part (in a box in the schem) because SPI/micro doesn't need any VP voltage higher than the supply (5v). So, you'll need the 'basic' base board, and the connections for SPI/uW are shown lower down.
I haven't tried this, but I'm going to build it anyway, got so many bits'n'bobs laying around, those components need to be doing something useful
Good luck.
BuriedCode. (stuck in the 80's)