Subj : Re: RP2350 and Pico 2 - things missing To : James Harris From : Theo Date : Thu Aug 15 2024 18:05:10 James Harris wrote: > I have been looking forward to the Raspberry Pi Pico 2 for a while. The > increased speed will be welcome for one project I want to use it for. > > However, according to what I've read there seem to be some missed > opportunities. Corrections would be welcome but AIUI: > > * There are still no analogue /outputs/ - which I would have thought > would have been cheap and easy to provide. I suspect the analogue drive circuit is not that simple - would take area and may compromise power, especially idle power. You can get some of the way by using PWM and an external R-C network to low pass filter the PWM. Depends what kind of frequency you need. Or there are I2C DACs if you need a more accurate output. > * Although there are now 3 PIO units each one still has only 32 words of > program memory (which was very limiting in the Pico). I assume that > because the RP2350 is supposed to be software compatible meaning, among > other things, that it should run RP2040 PIO code. That does look to be the case. Looks like the original RP2040 design optimised them into a corner that's difficult to get out of. Theo --- SoupGate-Win32 v1.05 * Origin: Agency HUB, Dunedin - New Zealand | Fido<>Usenet Gateway (3:770/3) .