16F88 PWM troubles

[Bruce]

On this device CCP1 is multiplexed with RB0 & RB3. To switch CCP1 you
use CCPMX in CONFIG1.

With CCPMX left un-programmed, CCP1 defaults to RB0.

Try this.

@ DEVICE HS_OSC,CCPMX_ON,MCLR_ON,LVP_OFF,WDT_OFF,PROTECT_OFF
    ' CCPMX_ON = PWM ON RB3, CCPMX_OFF = PWM ON RB0
DEFINE OSC 20 
TRISB = 0
CMCON = 0
ADCON0 = 0
ANSEL = 0
PR2 = 122 
CCPR1L = 64 
T2CON = %00000100 
CCP1CON = %00001100 

Here:
     GOTO Here

[Acetronics2]

Funny ...

16F88 is not supported by PBP 2.42 ....

LOL

Verify your release and upgrade ( 2.46 now ...)

Alain

[jpeakall]

Bruce,

As always, you da man! Working great now. I beleive that the ADCON0 was the main source of the problem, as I was checking RB0 as well as RB3.

What fun! I can get to work now instead of pounding my head on the keyboard.

Ace, I haven't checked, but I must have 2.43 or something, because I can indeed program the 16F88. I am going to get the upgrades from Bruce soon.

Thanks all!!

Jonathan

[Bruce]

You had RB0 set as an input. That's why you didn't see your PWM
signal output on RB0.

I think you have at least V2.45. That's when support for the 16F88
was added. I do recommend upgrading to V2.46. The new version
adds a ton of new devices including the new 18F full-speed USB PICs.