Altering a variable in a loop.

[HenrikOlsson]

Hi,
Several ways to do it, as usual. Here's one:

' Setting is your variable that step or down between 0-5
Lookup Setting, [12, 30, 55, 76, 98, 120], BaseDutyCycle

Another way would be to not step the Setting variable between 0 and 5 but to actually step it directly between dutycycle values

Select Case Step
  Case 12
    IF DOWN THEN
       Setting = 12 ' We're at the bottom setting
    ELSE
       Setting = 30
 
  Case 30
     IF DOWN THEN
        Setting = 12
    ELSE
       Setting = 55
    ENDIF

'And so on
  END SELECT

PWMDuty = Setting

/Henrik.

[jmgelba]

Ok, but these 2 examples run into the same problem. You've set the pwm duty cycle using CASE and now the program must go into a loop to change the pwm duty according to feedback from a current sense resistor. In that loop the the program needs to start the pwm at the number in the correct CASE and then ignore it every time it loops through as the CASE number could be incorrect. Within that loop it will be monitoring for a change of SETTINGS so it can jump to the next loop for that particular current output. How would the CASE work to exclude the current CASE number in each loop after it has looped once?