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However, I believe the basic procedure is essentially correct for the majority of boards which are too complex to reliably hand trace. The steps presented here are not exact, and you will no doubt find your own way of working which is more effective in the case of any particular board. The process proved to be very long and painstaking, but also very rewarding. All else is unsupported wishful thinking or hopeful speculation.This project is a result of needing to service a domestic electronic item without being able to obtain a circuit diagram. Pretty much the only change that can be deduced going forward is that the next Pi SoC will use a 28nm manufacturing process. The second is that such threads rapidly devolve into bickering over suggested details (that aren't known anyway) and get shut down. The first is.no one outside of RPF/RPT knows *anything* about the plans. In answer to the question.No, there aren't any good threads on the subject for two primary reasons. It's related in the sense that if someone wants to make current model Pis, he'll probably want to make future ones as well. How is this related to the OP wanting to Manufacture RPi's ? (Not one that simply lists all that exist but one with some rationale - such as where else people have worked or who has been captured more than once in the car park webcam ) is there a thread with good speculation on nextgen SOC for Future RPi models? Paul Webster wrote:I know that this could be seen as opening a can of worms but. Support requests of "this doesn't work on my almost-R-Pi" wouldn't get much attention from RPT other than probably laughter. One could hypothesise that if there were alternative boards sold using BCM283x, RPT may take steps to lock the firmware down to their boards, and that just becomes a pain for all parties. Without specific prior written permission.Īt the moment that can't be easily abused by others due to the Broadcom not selling BCM283x elsewhere.
Open board view schematics software#
May be used to endorse or promote products derived from this software * Neither the name of Broadcom Corporation nor the names of its suppliers * Redistributions must reproduce the above copyright notice and theįollowing disclaimer in the documentation and/or other materials * This software may only be used for the purposes of developing for, Modification, are permitted provided that the following conditions are Redistribution and use in binary form, without Note the licence on the firmware filesĬopyright (c) 2006, Broadcom Corporation.Ĭopyright (c) 2015, Raspberry Pi (Trading) Ltd What RPF/RPT will own the copyright on is a large part of the firmware and the support infrastructure. Taking on any new projects using that chip would therefore be very risky on their part. RPF do have very close ties with Broadcom and directed the hardware of 28, but execution was by Broadcom.īroadcom shuttered the group that developed BCM so no longer have any significant resource that knows and can support the chip. The first Pis used BCM2835 because it was available and they had technical expertise that could get the board off the ground for minimal cost. They don't own it - all of the IP inside it belongs to Broadcom or the 3rd parties they bought blocks in from (eg ARM for the ARM cores).īCM2835 taped out in about 2009/2010 before RPF had really started doing anything. Of course, there could be some cross licencing deals in there, but I have no further knowledge. Broadcom clearly have older versions (Pre RPF changes) that could be used, but no longer have the support staff to maintain it. However, the latest firmware you get on the Pi was developed by RPF, so they own the copyright on their portions of that. Is there an Official Announcement that RPT own BCM as it has been alluded to before ? The Pi design and firmware is owned by Pi Trading so not Broadcom's to sell or permit easy abuse of. Simpler than that - I doubt Broadcom would sell them fullstop as they don't have a way to support them. Broadcom are only interested in selling to third parties in millions or more.
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They get a good deal from Broadcom, which would not be available to you, even if you could buy the chips in the quantities you would need. Jamesh wrote:If the reason for attempting this is to reduce cost, I suspect that you would not be able to match Foundation pricing.