variable exceeded ram errors ?

turbo

Im having a problem with this PWM code im trying to get working it needs alot of work i know im sure this could be done more efficiently but im stumped on how to do it it works with two stages of PWM but as soon as i put all six stages in i get the "variable exceeded ram " errors any help on this would be wonderful.

Bean

Turbo,
Make your variables into arrays. Arrays are stored in a different area then regular variables.

So instead of:

Duty             VAR    BYTE  'Variable to hold current duty cycle starts at 0
Duty1            VAR    BYTE
Duty2            VAR    BYTE
Duty3            VAR    BYTE
Duty4            VAR    BYTE
Duty5            VAR    BYTE
Counter          VAR    BYTE
Counter1         VAR    BYTE
Counter2         VAR    BYTE
Counter3         VAR    BYTE
Counter4         VAR    BYTE
Counter5         VAR    BYTE
RampCycles       VAR    BYTE
RampCycles1      VAR    BYTE
RampCycles2      VAR    BYTE
RampCycles3      VAR    BYTE
RampCycles4      VAR    BYTE
RampCycles5      VAR    BYTE
StepCount        VAR    BYTE
StepCount1       VAR    BYTE
StepCount2       VAR    BYTE
StepCount3       VAR    BYTE
StepCount4       VAR    BYTE
StepCount5       VAR    BYTE

Use

Duty             VAR BYTE (6)
Counter          VAR BYTE (6)
RampCycles       VAR BYTE (6)
StepCount        VAR BYTE (6)

Then you just need to add parens in the code. "Duty(0)" instead of "Duty", and "Duty(5)" instead of "Duty5".

Bean

▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
www.iElectronicDesigns.com



Post Edited (Bean (Hitt Consulting)) : 3/14/2008 11:10:40 AM GMT

turbo

Thanks Bean i will try that later. One more question i have DIP switches set up for the rampcycles input what i was wondering is can i have the dip switches setup so two switches will have four ramp cylce rates instead of having each switch take up an input ?

Bean

Sure just do something like:

cycles = 0
cycles.0 = switch1
cycles.1 = switch2

Now the variable "cycles" will have a value for 0 to 3 depending on how you have the two switches set.

Bean.

▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
www.iElectronicDesigns.com

·

turbo

One more question on my input it is a pot so how can i index a window for each potval so it can be between a certain value ?

Like in my code where it is


If poval = 120 THEN
GOSUB G1

Something like this

If potval 120 to 140 then
GOSUB G1

This way it will fit inside this window and trigger everytime.

How would i do this?

JonnyMac

SX/B only allows one expression per line, so you could code it like this:

IF potVal >= 120 THEN
  IF potVal <= 140 THEN
    GOSUB G1
  ENDIF
ENDIF

turbo

Wonderful you guy are great . It would have took me years to figure this out thanks. LOL