Exceed maximum nested in SPIN?

MacTuxLin

Hi All,

May I know if there are any error msg when compiling if the number of nested block is more than 8 or will I just experience weird results including prop restarting in the mist of running the code?

BradC

Error message in Prop Tool. I'm pretty sure bstc will let you just keep going.

MacTuxLin

Thanks Brad.

Just done another test script that blinks the LED. If I have 9 repeat loops within a method, yes, compile error. But if I break into sub methods, it compiled without errors but had funny results. Reason I asked is because my main project has similar nesting process but I tend to get very weird results (e.g. prop hanging & restarting). Ruled out hardware as I've tried different prop & PC I'll continue debugging ...

This one is working:

CON
  _clkmode = xtal1 + pll16x
  _xinfreq = 5_000_000

PUB Main
  dira[6..7]~~
  dira[22..23]~~
  outa[6..7]~~
  outa[22..23]~~
  waitcnt(clkfreq/2 + cnt)
   repeat
    repeat
      repeat
        repeat
          TryThis

PRI TryThis

  repeat
    repeat
      repeat

        !outa[6..7]
        !outa[22..23]
        waitcnt(clkfreq/2 + cnt)
    
      repeat
        repeat
          TryThisAgain

PRI TryThisAgain
  repeat
    repeat
      repeat
        repeat
          !outa[6..7]
          !outa[22..23]
          waitcnt(clkfreq/2 + cnt)          

But, this one is not working right:

CON
  _clkmode = xtal1 + pll16x
  _xinfreq = 5_000_000

PUB Main
  dira[6..7]~~
  dira[22..23]~~
  outa[6..7]~~
  outa[22..23]~~
  waitcnt(clkfreq/2 + cnt)
   repeat
    repeat
      repeat
        repeat
          TryThis

PRI TryThis

  repeat
    repeat
      repeat
{
        !outa[6..7]
        !outa[22..23]
        waitcnt(clkfreq/2 + cnt)
}    
      repeat
        repeat
          TryThisAgain

PRI TryThisAgain
  repeat
    repeat
      repeat
        repeat
          !outa[6..7]
          !outa[22..23]
          waitcnt(clkfreq/2 + cnt)
           

MacTuxLin

Gzee .... found my own bug in this LED test script. So I guess as long as there are 8 or less nest within a method is fine then. ... Back to debug my project.