16F1827 setup

[Acetronics2]

Ok ...

1) Did you make the mods Bruce pointed at in his 6th February post ???

you DO have to make them ...

Also, check your PI14EEXT.BAS to make sure it has APFCON0 VAR BYTE EXT and not
APFCON VAR BYTE EXT.

There should also be these definitions in the PI14EEXT.BAS file;

Code:
MDCON VAR BYTE EXT
MDSRC VAR BYTE EXT
MDCARH VAR BYTE EXT
MDCARL VAR BYTE EXT

If these aren't in there, just add them.

2) just Paste Bruce's code in MCS:

'****************************************************************
'****************************************************************
'*  Name    : DSM.BAS                                           *
'*  Author  : B. Reynolds                                       *
'*  Notice  : Copyright (c) 2010 http://www.Rentron.com         *
'*          : All Rights Reserved                               *
'*  Date    : 2/5/2010                                          *
'*  Version : 1.0                                               *
'*  Notes   : Using the 16F1827 Data Signal Modulator for IR    *
'*          : serial communications with onboard USART.         *
'****************************************************************

' MODOUT, RB3, outputs whatever you send with HSEROUT as a 40kHz
' modulated data stream. 

ASM
  __config _CONFIG1, _FOSC_INTOSC & _WDTE_OFF & _PWRTE_ON & _MCLRE_OFF & _CP_OFF & _CPD_OFF & _BOREN_ON & _CLKOUTEN_OFF & _IESO_OFF & _FCMEN_OFF
  __config _CONFIG2, _PLLEN_OFF & _LVP_OFF & _VCAPEN_OFF & _LVP_OFF & _STVREN_OFF
ENDASM

DEFINE OSC 8
DEFINE HSER_BAUD 2400  
Duty VAR WORD
TRISB = 0

Init:
  PR2 = 49             ' Set PWM for ~40kHz
  CCP1CON = %00001100  ' Mode select = PWM
  T2CON = %00000100    ' %00000100 = TMR2 ON 1:1 prescale

  Duty = 100           ' Roughly 50% duty cycle
  CCP1CON.4 = duty.0   ' Setup 10-bit duty cycle as
  CCP1CON.5 = duty.1   ' a 10-bit word
  CCPR1L = DUTY >> 2
  APFCON0 = 1          ' CCP1 PWM output on RB0
  OSCCON = %01110000   ' 8MHz internal
  ANSELA = 0           ' all digital. A/D disabled
  ANSELB = 0
  MDCON = %11100000    ' modulator, MODOUT pin, slew rate limiting enabled
  ' Note: set MDSRC.7 to eliminate the TX signal output on RB2/TX
  MDSRC = %00001010    ' USART TX is modulation source, TX output still active
  MDCARH = %00000000   ' carrier OFF during idle periods
  MDCARL = %00000100   ' carrier ON only when sending data

Main:
  HSEROUT [$55]        ' sends USART data out modulated at 40kHz
  PAUSE 50
  GOTO Main
  END

MUST compile without any error in MCS if 1) has been done.

As simple as that.

Alain