L
Lasse Langwadt Christensen
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onsdag den 28. september 2022 kl. 22.37.15 UTC+2 skrev a a:
and totally irrelevant to the topic
On Wednesday, 28 September 2022 at 20:35:24 UTC+2, lang...@fonz.dk wrote:
onsdag den 28. september 2022 kl. 19.47.52 UTC+2 skrev a a:
On Wednesday, 28 September 2022 at 17:39:37 UTC+2, lang...@fonz.dk wrote:
onsdag den 28. september 2022 kl. 14.01.10 UTC+2 skrev a a:
On Monday, 26 September 2022 at 22:09:16 UTC+2, Ricky wrote:
A customer wants me to redesign a board to eliminate the production bottlenecks. They also want all IP so they can make the boards themselves if my company is unable to. I\'m fine with that, but I\'d like to have some means of assurance they won\'t make boards without my royalty being respected.
The board has an FPGA which contains the \"magic\", an analog path, and a digital path to the outside world. The digital path needs a 3.3V/5V interface. There are two opamps that serve as filters with gain. There is a need for several (3-4) LDOs.
I\'ve found a couple of chips from Greenpaks that could help here. One is a \"Programmable Mixed-Signal Matrix\" which could replace the opamps and provide a configurable gain using the programmable \"rheostat\". Another has four LDOs which would be useful and *might* be able to serve as the level shifter.
I\'m waiting to hear back from someone from Renesas, who can discuss this with me, or a disti FAE. There are a lot of questions about how to turn these into a custom part number to meet my needs.
Anyone have experience with using these in production?
--
Rick C.
--It\'s pretty easy.
--Just implement individual Activation Code for every board, to be generated by your server to get count of boards --manufactured and activated.
---when say it is easy you obviously never did anything like it....
they have the source so they can just remove any \"activation\" checks
in theory you are right but in practice, not exactly.
Implementing private - public key pair is easy
implementing one time activation codes is easy
implementing one-way input bus only hardware is easy
and neither of those does anything because they have the source and can easily remove any checks
.../ .... / ...
learn how Speedport Hybrid LTE DSL router by Deutsche Telekom is hard/software locked to local APN of the customer
customers don\'t have the source so they can\'t remove the lock and it is permanently connected to the internet so can be remotely disabled
they can try to remove checks if checks are not part of the contract
but if checks are part of the contracts and you attach 3G/4G/LTE modem to communicate with a server at preset intervals, you get modem identified by number, by sim card, by \"from\" field in sms message
easy cake
and totally irrelevant to the topic