Hi All, I notice someone mentioned before about AVR RISK MPU, just purchased two chips of AT90S1200 found it very nice like PIC 16C84, but the vendor of my universal programmer ALL-03A said that they stoped support it. So these days I built a very simple PC based programmer, very simple that it does NOT need a power supply(Powered by PC printer port). Works OK I think. I'd like to share my program freely with others, you can download the SCH &PCB and DOS program from my home page: http://www.qsl.net/ba1fb/fbprg.zip BTW, is there a AVR mailing list out there? Jerry Meng, BA1FB mailto:ba1fb@qsl.net http://www.qsl.net/ba1fb