In message , Pasi T Mustalahti writes >> ATMEL sells a prommer for this chips, here in Austria it costs less than >> $180. Is this too expensive? >> ernst parth > >PTM: I think it is a bit expensive compared to PIC, that can be programmed >with a homebrew 5$ prommer. I'm expectin to find a similar solution. >(89c1051 / 2051) The new Atmel AVR devices can be programmed in-circuit via the printer port with a virtually zero component programmer (one capacitor). It does need a 5 V power supply. Another programmer doesn't need an external power supply, but does need four diodes, to get its power from the port. Leon -- Leon Heller: leon@lfheller.demon.co.uk http://www.lfheller.demon.co.uk Amateur Radio Callsign G1HSM Tel: +44 (0) 118 947 1424 See http://www.lfheller.demon.co.uk/rcm.htm for details of a low-cost reconfigurable computing module using the XC6216 FPGA