I can do that only after the firmware gets stable and the volume goes up but I doubt it will even happen. This is my first assembly based PIC firmware and the initial order quantity will not be that high for Microchip to supply SQTP parts to us. They need to have 25k per order for SQTP. My first project (a simple software using PICC C compiler) is using SQTP but it is after the product was launched for two years. It is cheaper than in-house programming. And the quantity is much higher (more than 100k per year). It also has gone through extensive reviews. Regards, Xiaofan -----Original Message----- From: Alan B. Pearce [mailto:A.B.Pearce@rl.ac.uk] Sent: Monday, June 27, 2005 4:36 PM To: Microcontroller discussion list - Public. Subject: Re: [PIC] generating different pseudo random sequence using the same firmware Why not get Microchip to supply pre-programmed chips? They will serialise them for you as part of the programming sequence. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist