The Sony boys with PlayStation toys have been driving me mad lately, so I came up with a simple 4 wire Hardware modification (addition) to get my DT001 board to program 508/9's in the same ZIF socket. In fact, not only does it suit my DT001 board, but also the Newfound PP1 and Warp-3 programmers and maybe even the old PICstart programmers (software permitting), as well as any simple PIC16x84, 5 wire programmer. For that "Me Too" brigade, this is a hardware modification, not a software one. Your programmer must have the oppropriate software drivers to take advantage of it. No, I don't have them, you must ask your Programmer supplier for them. (Gee I hope that covers it) :-) This below text is from: http://www.dontronics.com/dt001cha.html --------------------------------------------------------------------------- Rewiring the 18 pin ZIF socket position to suit the 8 pin configuration. --------------------------------------------------------------------------- Place a 508 chip with pin 1 in the 18 pin ZIF socket position pin 1. You will see that pin 1 to 4 come out at the same numbers, but pin 15 of the ZIF is now pin 5 of the 508, pin 16 is 6, 17 is 7, and 18 becomes 8. VPP: You will see that pin 4, the VPP is already connected to pin 4. This is the 13V programming pulse and suits us nicely, as this is the only one that stands a very good chance of damaging the chip if connected incorrectly. VDD: On the solder side of the board run an insulated jumer and Connect pin 14 of the ZIF socket to pin pin 1 of the ZIF socket. RB7: Connect pin 13 to pin 17. (pin 7 of the 508). RB6: Connect pin 12 to pin 16. (pin 6 of the 508). GND: Connect pin 5 to pin 18. (pin 8 of the 508). That's it. Oh, by the way, I don't have the software drivers for brand xyz programmers for the 508/9 micros. When every Playstation owner also owns a 508 programmer (this century I hope), I will stop getting asked the same questions. :-) Don McKenzie mailto:don@dontronics.com http://www.dontronics.com Don's Download Dungeon: http://www.dontronics.com/download.html For more details, send a blank message to mailto:info@dontronics.com or mailto:simstick@dontronics.com or mailto:basics@dontronics.com