Hi to all engineers. Today I came back from the seminar. It was really great. Regardless of how much you know about pic still where is some thing new to know. There are a few things I really liked. 1. you can reprogram OTPs if you have enough free program space. example you work with 16c71 1 k program memory your code takes 200 bytes that means you can reprogram your otp for 4 times by just changing program location. 2. new 18 family pics are coming. they are same as 16c1xx stack is accessible 32 level stack 10 more power instructions and lot more. 3. high voltage pic will be available same as 16c54 but you can drive 12 v VDD and output will be same as VDD and stack is 4 level. and lot more. Andre Abelian