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   REPLYADDR peter.heitzer@rz.uni-regensburg.de   
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   Andy Burns  wrote:   
   >Peter Heitzer wrote:   
      
   >> john larkin  wrote:   
   >>   
   >>> Cool. We just did a MicroPython loop to raise and lower a port pin 4   
   >>> times, brute force inline code, as fast as we could. One up/down cycle   
   >>> takes about 14 microseconds on a Pico, with some jitter.   
   >>   
   >>> We'll repeat it in c. I'm guessing that will be 20x faster.   
   >>   
   >> I did a quick test yesterday evening using this few lines of code:   
   >> I got 83 kHz.   
      
   >I think if you want the fastest cycle time, you'd use the RP2040's PIO   
   >state machine, and probably get 62MHz without overclocking, but then   
   >that's not really testing MicroPython ...   
   Although the PIO code could be written in MicroPython with the   
   decorator @rp2.asm_pio().   
      
   --   
   Dipl.-Inform(FH) Peter Heitzer, peter.heitzer@rz.uni-regensburg.de   
      
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