Hi Jerry, > One really good trick is how to hook a logic analyzer to those > itty-bitty balls on the processor. Back when I was a boy, processors > had 40 legs and no balls. :-D You must have a board with a logic > analyzer connector.
Thankfully the Freescale MDS boards do have logic analyzer headers on their boards. My custom boards have 5000+ BGA balls .... http://www.ovro.caltech.edu/~dwh/carma_board/ so I made sure to hang a few logic analyzer connectors on that too :) One interesting thing that came out of the board development is that the PowerPC processor was RoHS, while the FPGAs were not. The assembly company stripped the RoHS balls off the PowerPC, reballed them non-RoHS, and then assembled the boards. The boards were then X-rayed with what amounts to a CT scanner, and each ball shape was observed at the bottom, middle, and top to ensure that they all looked nice and pretty. Amazing stuff :) Cheers, Dave ------------------------------------------------------------------------- This SF.Net email is sponsored by the Moblin Your Move Developer's challenge Build the coolest Linux based applications with Moblin SDK & win great prizes Grand prize is a trip for two to an Open Source event anywhere in the world http://moblin-contest.org/redirect.php?banner_id=100&url=/ _______________________________________________ U-Boot-Users mailing list U-Boot-Users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/u-boot-users
