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izardJust returned from a day trip to a customer in Osnabrueck.
I was there with a colleague from H/W design team, and we noticed an anti-pattern:
One of the issues we were dealing with was related to a problem in bringing up a freshly designed board with latest CPU revision. Booting the system starts with BIOS code that initialises the peripherals, so the problem could be caused by H/W (schematics, layout), or S/W (BIOS) or (likely) a combination of both factors.
However S/W guys were happy to blame H/W guys and ruled out any problems with S/W (having a plausible technical proof points), and H/W guys were certain that the layout and schematics are both fine, and problem must be in S/W (with even more plausible proofs). I am happy that I was not involved in this discussion, but I will follow it and my bet is that the root cause is related to layout :)
The bright spot for me was that today at last I was officially allowed to brief the customer with a new feature they waited for few years, and sketch a design changes for their s/w using this new feature of upcoming CPUs. Alas, I still have to wait until it becomes public so I can publish an article on habrahabr rather than describe it under NDA.
I was there with a colleague from H/W design team, and we noticed an anti-pattern:
One of the issues we were dealing with was related to a problem in bringing up a freshly designed board with latest CPU revision. Booting the system starts with BIOS code that initialises the peripherals, so the problem could be caused by H/W (schematics, layout), or S/W (BIOS) or (likely) a combination of both factors.
However S/W guys were happy to blame H/W guys and ruled out any problems with S/W (having a plausible technical proof points), and H/W guys were certain that the layout and schematics are both fine, and problem must be in S/W (with even more plausible proofs). I am happy that I was not involved in this discussion, but I will follow it and my bet is that the root cause is related to layout :)
The bright spot for me was that today at last I was officially allowed to brief the customer with a new feature they waited for few years, and sketch a design changes for their s/w using this new feature of upcoming CPUs. Alas, I still have to wait until it becomes public so I can publish an article on habrahabr rather than describe it under NDA.
