From: theom+news@chiark.greenend.org.uk   
      
   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: you cannot sedate... all the things you hate (1:229/2)