Honored Contributor
Honored ContributorI'm guessing you are using active serial configuration. Well you need to answer the question of where you want to store the unique information on the board? If all you have is the configuration flash of the device then I suppose that's where it'll have to be. Now I can conceive of two options.
1 - Program the unique ID into the flash during manufacturing using JTAG. I know this is what you are trying to avoid. This is what we typically do for most designs now. However, our quantities are not really large and every one of our products has to go through a full test anyway at the assembly house. Adding the programming to the list of tests is a minor inconvenience. 2 - The AS device is truly just an SPI flash device. It can be programmed just like any serial flash device. So I suppose if you were truly doing massive quantities, you could arrange to have the values programmed into the flash devices before they are soldered onto the board. We have one product where the assembly house programs eeproms with MAC addresses before soldering them onto the board. At some point you need a physical connection to the device you are trying to program. Jake
