n0p wrote on 2023-09-12, 08:40:
Now, mouse driver for CH375 chip, anyone?
Technically, it's possible for sure. There are vintage DOS mice drivers for real USB controllers, even.
They worked with text-based applications like Norton Commander and its clones (Volker's Commander etc).
There also were USB drivers on the Bret Johnson website..
Anyway, I mean to say there's hope. 🙂
Edit:
the3dfxdude wrote on 2023-09-12, 03:01:
rasz_pl wrote on 2023-09-11, 21:03:
manufacturing flexibility, respin PCB design for the cheapest part of the week instead of being linked to one vendor and price/availability swings.
So we have a guy, who bought a _used_ book, finds he has a burned out XL4015, also has a different pcb than another person. And I'm to be told the independent guy doing this is already respinning and practicing DFM on what was announced as a hobby run, and so the issue is not coming from a defect? My suggestion would to be cautious and check over it some more instead of directly slapping another IC on there. Of course the previous owner could have trashed it doing something stupid. This thing is attracting tinkerers primarily so who knows.
Absolutely.
This reminds me of something loosely related, btw.
Rule number #1 - never buy something from a CB radio operator, it's likely broken.
Rule number #2 - if you did, check with a multimeter first, don't attach your equipment straightaway.
Same applies also to certain radio amateur folks who offload their junk onto you, masquerading it as a generous present (the waste disposal charges them money).
I'm speaking from experience here. Sadly.
- A family member of mine is both, so I don't hold a grudge against these people whatsoever. It's just an observation. 🤷♂️
Especially power supplies were affected, both lab psus (13,8v) and ordinary power bricks.
It's kind of funny if you measure voltages and find out that the "good" power supply
does suddenly output 25v instead of 13,8v (modded for a stronger linear amplifier or simply broken ?).
Or, if the 12V DC power brick for an auxiliary device (radio modem, rtty decoder) outputs 18v AC unregulated. No really, I've bern there.
As much as I love the hobby and enjoy wirking with people, it's better to be safe than sorry.
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In what to one race is no time at all, another race can rise and fall..." - The Minstrel
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