5 ms·
IMHO, the issue [edit: once understood/documented] was overhyped. From browsing blogs/forums you'd think the chip was completely useless. But many uses of the c
by scottlamb 1y ago
IMHO, the issue [edit: once understood/documented] was overhyped. From browsing blogs/forums you'd think the chip was completely useless. But many uses of the chip didn't run into the problem, and others could be solved with external resistors. Even https://github.com/gusmanb/logicanalyzer https://github.com/gusmanb/logicanalyzer eventually found a nice RP2350 design.
I think they didn't preannounce because it could have taken longer than expected and people would have held orders in the meantime, which could have been a problem. [1]
Although they did do this a little bit:
> Eventually all Pico 2 products will use the A4 stepping. While the A3 stepping will not be made available to silicon customers, approximately 30,000 units of A3 inventory will be used to build Pico 2 and Pico 2 W products.
~~I'm hesistant to buy a Pico 2 or Pico 2 W right now because I might get this weird stepping that could have issues almost no one else ever sees.~~ [edit: not so much after seeing phire's comment and the bootrom-only changes in the datasheet.]
[1] https://en.wikipedia.org/wiki/Osborne_effect https://en.wikipedia.org/wiki/Osborne_effect
- phire 1y agoIt's all documented in the updated datasheet (see Appendix C) All the hardware changes and most of the bootrom changes went into A3. A4 is only a minor bootrom update. The chance of an A3-only errata is tiny.
- scottlamb 1y agoThanks! I should have looked there first. I feel better about buying a board with an A3 after seeing that.