EPWM control

[Asmith]

Thank you Mister_e, that did help out. The running frequency is now 8KHz. I ran a small bit of code below.

'-------------------------------------------------------------------------'
'	PIC Defines Specific to PIC Basic Pro                                  '
'-------------------------------------------------------------------------'
   ' 1. Use internal system clock
   @ DEVICE PIC16F684, INTRC_OSC_NOCLKOUT 
   ' 2. Turn watchdog timer on
   @ DEVICE PIC16F684, WDT_OFF
   ' 3. Power on time on
   @ DEVICE PIC16F684, PWRT_ON
   ' 4. Turning off the master clear input
   @ DEVICE PIC16F684, MCLR_OFF
   ' 5. Brown out detect on
   @ DEVICE PIC16F684, BOD_ON
   ' 6. Data EE Read protect is off
   @ DEVICE PIC16F684, CPD_OFF
   ' 7. Code protect is off
   @ DEVICE PIC16F684, PROTECT_OFF

'-------------------------------------------------------------------------'
'	Hardware Defines Specific to PIC Basic Pro                             '
'-------------------------------------------------------------------------'
	define ADC_BITS 10          'Set A/D coverter to use 10 bits
   define ADC_SAMPLEUS 50      'Set A/D sample time as 50us
   DEFINE OSC 8                'Change clock speed to 8Mhz
   OSCCON = %01110000          'Change internal osc to 8MHz
'-------------------------------------------------------------------------'
'	Define Program Variables                                               '
'-------------------------------------------------------------------------'
   R VAR BYTE
   ScaledX VAR BYTE
   ScaledY VAR BYTE
   ShortX VAR BYTE
   ShortY VAR BYTE
   Slope VAR WORD
   
   AnalogLow VAR WORD          'Digital value for an analog low signal
   AnalogHigh VAR WORD         'Digital value for an analog high signal
   CurrentSpeed VAR WORD
   DUTY VAR WORD
   ExtLimit VAR WORD           'Stored value of the extend limit setting
   JoyX VAR WORD
   JoyY VAR WORD
   RetLimit VAR WORD           'Stored value of the retract limit setting
   Position VAR WORD           'Analog value of the internal potentiometer
   Seeking VAR WORD
   Speed VAR WORD

'-------------------------------------------------------------------------'
'	Define I/O and EEPROM Definitions                                      '
'-------------------------------------------------------------------------'
   data @0,word 768            'Set default extend limit
   data @2,word 256            'Set default retract limit    

   AnalogHigh = 768            'Set analog high signal level 
   AnalogLow = 256             'Set analog low signal level
   ExtLimit = 750
   Retlimit = 50
'-------------------------------------------------------------------------'
'	Initialise PIC Hardware                                                '
'-------------------------------------------------------------------------'
   CMCON0 = 7                  'Turn comparators off
	ADCON0.7 = 1                'Set A/D Values to be right justified
   ADCON0.0 = 1                'Turn on A/D Converter
   ANSEL = %00110111           'Turn on select analog registers
	TRISA = %00001111           'Turn on select register inputs
	TRISC = %00111111           'Turn on select register inputs
    
   PR2 = 249
   CCP1CON = %11001100  
   CCPR1L = 0 
   PIR1.1 = 0
   T2CON.0 = 0
   T2CON.1 = 0
   T2CON.2 = 1
   WHILE (PIR1.1 = 0)
   WEND;
   TRISC = %00000011 
'-------------------------------------------------------------------------'
'   Start of Main Program                                                 '
'-------------------------------------------------------------------------'
Main:   

WHILE(1)
   CCP1CON.7 = 1
   DUTY = 300
   CCP1CON.4 = DUTY.0
   CCP1CON.5 = DUTY.1 
   CCPR1L = DUTY >> 2
   PAUSE 1000
   DUTY = 0
   CCP1CON.4 = DUTY.0
   CCP1CON.5 = DUTY.1 
   CCPR1L = DUTY >> 2
   PAUSE 200
   
   CCP1CON.7 = 0
   DUTY = 300
   CCP1CON.4 = DUTY.0
   CCP1CON.5 = DUTY.1 
   CCPR1L = DUTY >> 2
   PAUSE 1000
   DUTY = 0
   CCP1CON.4 = DUTY.0
   CCP1CON.5 = DUTY.1 
   CCPR1L = DUTY >> 2
   PAUSE 200   
WEND

END

This ran a few times on the motor back and forth, and then ruined one of the driver chips on the board shorting my pcb out. This is an update of where I am at the moment. I starting trouble shooting on it now, so hopefully if anyone finds a solution so will I. One of the things that might be hurting me is a electro cap on the 5V rail (I know duh) or a very high uF cap on the +12V rail for the 2 H-bridges running DC brush motors. (Again, I can't believe I forgot these) I'm also attaching the schematic as this might help some see something in the hardware. I really appreciate all of the help so far guys. Thank you

Anthony