SETUP_16_F88_0_CONFIG_3.ASM (46) : Missing opera

[merlim]

[ASM ERROR] SETUP_16_F88_0_CONFIG_3.ASM (46) : Missing operator
[ASM ERROR] SETUP_16_F88_0_CONFIG_3.ASM (46) : Symbol not previously defined (x)

Please Help : see attached program


'****************************************************************
'* Name : TEST_0_16F88_config_3 *
'* Author : [WVA] *
'* Notice : Copyright (WVA) 2014 *
'* : All Rights Reserved *
'* Date : May/ 2015 *
'* Version : 1.0 *
'* Notes : INITIAL_SETUP_16F88 *
'* : *
'****************************************************************
;----[16F88 Hardware Configuration]---------------------------------------------

;----[16F88 Hardware Configuration]---------------------------------------------

#IF __PROCESSOR__ = "16F88"

#DEFINE MCU_FOUND 1

#CONFIG

cfg1 = _INTRC_IO ; INTRC oscillator; CLKO function on RA6/OSC2/CLKO pin and port I/O function on RA7/OSC1/CLKI pin
cfg1&= _WDT_OFF ; WDT enabled
cfg1&= _PWRTE_OFF ; PWRT disabled
cfg1&= _MCLR_ON ; RA5/MCLR/VPP pin function is MCLR
cfg1&= _BODEN_ON ; BOR enabled
cfg1&= _LVP_OFF ; RB3 is digital I/O, HV on MCLR must be used for programming
cfg1&= _CPD_OFF ; Code protection off
cfg1&= _WRT_PROTECT_OFF ; Write protection off
cfg1&= _DEBUG_OFF ; In-Circuit Debugger disabled, RB6 and RB7 are general purpose I/O pins
cfg1&= _CCP1_RB0 ; CCP1 function on RB0
cfg1&= _CP_OFF ; Code protection off
__CONFIG _CONFIG1, cfg1

cfg2 = _FCMEN_ON ; Fail-Safe Clock Monitor enabled
cfg2&= _IESO_ON ; Internal External Switchover mode enabled

__CONFIG _CONFIG2, cfg2 x

#ENDCONFIG

#ENDIF

;----[Verify Configs have been specified for Selected Processor]----------------
; Note: Only include this routine once, after all #CONFIG blocks
#IFNDEF MCU_FOUND
#ERROR "No CONFIGs found for [" + __PROCESSOR__ +"]"
#ENDIF


'define OSC 4
OSCCON=%01100000
cmcon = 7 'comparator off
ADCON1 = 7 'analog digital of
ANSEL=0 'set i/o to digital

TRISA=%11111111 'all A ports inputs
'PORTB=%00000000 'Initiate all port B pins to 'low
TRISB=%1100000 ' all ports outputs

main:
PORTB.0=0 'LED of
'PORTB.1=1
pause 1000 'Delay 1/2 second
PORTB.0=1 'LED on
'PORTB.1=0
PAUSE 1000 'Delay 1/2 second
goto main 'Loop back and do it again

[richard]

__CONFIG _CONFIG2, cfg2 x

whats this x ?

why can't post your code in the code tags ? you make code very difficult to evaluate unless you do

[merlim]

Thank you for your response Richard .
PS: I am not always programing; So my reply is all over the Days/ Hr..

I pasted that from the meCONFIG Code Generator
Configuration Generator for PBP3 meCONFIG.exe

microEngineering Labs Ver. 1.0.0.11

I need to remove that ?

I removed, it it compiled OK.

I will try to program it now.

Please stay with me. I try to program The 16f88
and I run in many problems.

The code tags ? I am new to the forum and learn proper usage .

[mackrackit]

[xCODE]

[x/CODE]

These are code tags after the x is removed. Clicking the # in the editor toolbar when you post provides the tags. Place you code between them.

[merlim]

[xCODE]

[x/CODE]

These are code tags after the x is removed. Clicking the # in the editor toolbar when you post provides the tags. Place you code between them.

'****************************************************************
'* Name : TEST_0_16F88_config_3 *
'* Author : [WVA] *
'* Notice : Copyright (WVA) 2014 *
'* : All Rights Reserved *
'* Date : May/ 2015 *
'* Version : 1.0 *
'* Notes : INITIAL_SETUP_16F88 *
'* : *
'****************************************************************
;----[16F88 Hardware Configuration]---------------------------------------------



#IF __PROCESSOR__ = "16F88"

#DEFINE MCU_FOUND 1

#CONFIG

cfg1 = _INTRC_IO ; INTRC oscillator; CLKO function on RA6/OSC2/CLKO pin and port I/O function on RA7/OSC1/CLKI pin
cfg1&= _WDT_OFF ; WDT enabled
cfg1&= _PWRTE_OFF ; PWRT disabled
cfg1&= _MCLR_ON ; RA5/MCLR/VPP pin function is MCLR
cfg1&= _BODEN_ON ; BOR enabled
cfg1&= _LVP_OFF ; RB3 is digital I/O, HV on MCLR must be used for programming
cfg1&= _CPD_OFF ; Code protection off
cfg1&= _WRT_PROTECT_OFF ; Write protection off
cfg1&= _DEBUG_OFF ; In-Circuit Debugger disabled, RB6 and RB7 are general purpose I/O pins
cfg1&= _CCP1_RB0 ; CCP1 function on RB0
cfg1&= _CP_OFF ; Code protection off
__CONFIG _CONFIG1, cfg1

cfg2 = _FCMEN_ON ; Fail-Safe Clock Monitor enabled
cfg2&= _IESO_ON ; Internal External Switchover mode enabled


#ENDCONFIG

#ENDIF

;----[Verify Configs have been specified for Selected Processor]---
; Note: Only include this routine once, after all #CONFIG blocks
#IFNDEF MCU_FOUND
#ERROR "No CONFIGs found for [" + __PROCESSOR__ +"]"
#ENDIF


define OSC 4
OSCCON=%01100000
cmcon = 7 'comparator off
ADCON1 = 7 'analog digital of
ANSEL=0 'set i/o to digital

TRISA=%11111111 'all A ports inputs
'PORTB=%00000000 'Initiate all port B pins to 'low
TRISB=%1100000 ' all ports outputs

main:
PORTB.0=0 'LED of
'PORTB.1=1
pause 1000 'Delay 1/2 second
PORTB.0=1 'LED on
'PORTB.1=0
PAUSE 1000 'Delay 1/2 second
goto main 'Loop back and do it again



I hope this is correct ?

[richard]

I hope this is correct ?

no
and yet you still won't post your code in the "code tags "

'****************************************************************
 '* Name : TEST_0_16F88_config_3 *
 '* Author : [WVA] * 
 '* Notice : Copyright (WVA) 2014 *
 '* : All Rights Reserved *
 '* Date : May/ 2015 *
 '* Version : 1.0 *
 '* Notes : INITIAL_SETUP_16F88 *
 '* : *
 '****************************************************************
 ;----[16F88 Hardware Configuration]---------------------------------------------



 #IF __PROCESSOR__ = "16F88"

 #DEFINE MCU_FOUND 1 

 #CONFIG

 cfg1 = _INTRC_IO ; INTRC oscillator; CLKO function on RA6/OSC2/CLKO pin and port I/O function on RA7/OSC1/CLKI pin
 cfg1&= _WDT_OFF ; WDT enabled
 cfg1&= _PWRTE_OFF ; PWRT disabled
 cfg1&= _MCLR_ON ; RA5/MCLR/VPP pin function is MCLR
 cfg1&= _BODEN_ON ; BOR enabled
 cfg1&= _LVP_OFF ; RB3 is digital I/O, HV on MCLR must be used for programming
 cfg1&= _CPD_OFF ; Code protection off
 cfg1&= _WRT_PROTECT_OFF ; Write protection off
 cfg1&= _DEBUG_OFF ; In-Circuit Debugger disabled, RB6 and RB7 are general purpose I/O pins
 cfg1&= _CCP1_RB0 ; CCP1 function on RB0
 cfg1&= _CP_OFF ; Code protection off
  __CONFIG _CONFIG1, cfg1

 cfg2 = _FCMEN_ON ; Fail-Safe Clock Monitor enabled
 cfg2&= _IESO_ON ; Internal External Switchover mode enabled
[COLOR="red"]  __CONFIG _CONFIG2, cfg2[/COLOR]

 #ENDCONFIG

 #ENDIF

 ;----[Verify Configs have been specified for Selected Processor]---
 ; Note: Only include this routine once, after all #CONFIG blocks
 #IFNDEF MCU_FOUND
 #ERROR "No CONFIGs found for [" + __PROCESSOR__ +"]"
 #ENDIF


 define OSC 4
 OSCCON=%01100000
 cmcon = 7 'comparator off
 ADCON1 = 7 'analog digital of
 ANSEL=0 'set i/o to digital

 TRISA=%11111111 'all A ports inputs
 'PORTB=%00000000 'Initiate all port B pins to 'low
 TRISB=%1100000 ' all ports outputs

 main:
 PORTB.0=0 'LED of
 'PORTB.1=1 
 pause 1000 'Delay 1/2 second
 PORTB.0=1 'LED on
 'PORTB.1=0
 PAUSE 1000 'Delay 1/2 second
 goto main 'Loop back and do it again

[merlim]

regarding code tags

I put a code tag on program start and program end


'****************************************************************
'* Name : TEST_0_16F88_config_3 *
'* Author : [WVA] *
'* Notice : Copyright (WVA) 2014 *
'* : All Rights Reserved *
'* Date : May/ 2015 *
'* Version : 1.0 *
'* Notes : INITIAL_SETUP_16F88 *
'* : *
'****************************************************************
;----[16F88 Hardware Configuration]---------------------------------------------



#IF __PROCESSOR__ = "16F88"

#DEFINE MCU_FOUND 1

#CONFIG

cfg1 = _INTRC_IO ; INTRC oscillator; CLKO function on RA6/OSC2/CLKO pin and port I/O function on RA7/OSC1/CLKI pin
cfg1&= _WDT_OFF ; WDT enabled
cfg1&= _PWRTE_OFF ; PWRT disabled
cfg1&= _MCLR_ON ; RA5/MCLR/VPP pin function is MCLR
cfg1&= _BODEN_ON ; BOR enabled
cfg1&= _LVP_OFF ; RB3 is digital I/O, HV on MCLR must be used for programming
cfg1&= _CPD_OFF ; Code protection off
cfg1&= _WRT_PROTECT_OFF ; Write protection off
cfg1&= _DEBUG_OFF ; In-Circuit Debugger disabled, RB6 and RB7 are general purpose I/O pins
cfg1&= _CCP1_RB0 ; CCP1 function on RB0
cfg1&= _CP_OFF ; Code protection off
__CONFIG _CONFIG1, cfg1

cfg2 = _FCMEN_ON ; Fail-Safe Clock Monitor enabled
cfg2&= _IESO_ON ; Internal External Switchover mode enabled


#ENDCONFIG

#ENDIF

;----[Verify Configs have been specified for Selected Processor]---
; Note: Only include this routine once, after all #CONFIG blocks
#IFNDEF MCU_FOUND
#ERROR "No CONFIGs found for [" + __PROCESSOR__ +"]"
#ENDIF


define OSC 4
OSCCON=%01100000
cmcon = 7 'comparator off
ADCON1 = 7 'analog digital of
ANSEL=0 'set i/o to digital

TRISA=%11111111 'all A ports inputs
'PORTB=%00000000 'Initiate all port B pins to 'low
TRISB=%1100000 ' all ports outputs

main:
PORTB.0=0 'LED of
'PORTB.1=1
pause 1000 'Delay 1/2 second
PORTB.0=1 'LED on
'PORTB.1=0
PAUSE 1000 'Delay 1/2 second
goto main 'Loop back and do it again

[merlim]

[CODE]

[/CODE]

[ASM ERROR] SETUP_16_F88_0_CONFIG_3.ASM (46) : Missing operator
[ASM ERROR] SETUP_16_F88_0_CONFIG_3.ASM (46) : Symbol not previously defined (x)

Please Help : see attached program


'****************************************************************
'* Name : TEST_0_16F88_config_3 *
'* Author : [WVA] *
'* Notice : Copyright (WVA) 2014 *
'* : All Rights Reserved *
'* Date : May/ 2015 *
'* Version : 1.0 *
'* Notes : INITIAL_SETUP_16F88 *
'* : *
'****************************************************************
;----[16F88 Hardware Configuration]---------------------------------------------

;----[16F88 Hardware Configuration]---------------------------------------------

#IF __PROCESSOR__ = "16F88"

#DEFINE MCU_FOUND 1

#CONFIG

cfg1 = _INTRC_IO ; INTRC oscillator; CLKO function on RA6/OSC2/CLKO pin and port I/O function on RA7/OSC1/CLKI pin
cfg1&= _WDT_OFF ; WDT enabled
cfg1&= _PWRTE_OFF ; PWRT disabled
cfg1&= _MCLR_ON ; RA5/MCLR/VPP pin function is MCLR
cfg1&= _BODEN_ON ; BOR enabled
cfg1&= _LVP_OFF ; RB3 is digital I/O, HV on MCLR must be used for programming
cfg1&= _CPD_OFF ; Code protection off
cfg1&= _WRT_PROTECT_OFF ; Write protection off
cfg1&= _DEBUG_OFF ; In-Circuit Debugger disabled, RB6 and RB7 are general purpose I/O pins
cfg1&= _CCP1_RB0 ; CCP1 function on RB0
cfg1&= _CP_OFF ; Code protection off
__CONFIG _CONFIG1, cfg1

cfg2 = _FCMEN_ON ; Fail-Safe Clock Monitor enabled
cfg2&= _IESO_ON ; Internal External Switchover mode enabled

__CONFIG _CONFIG2, cfg2 x

#ENDCONFIG

#ENDIF

;----[Verify Configs have been specified for Selected Processor]----------------
; Note: Only include this routine once, after all #CONFIG blocks
#IFNDEF MCU_FOUND
#ERROR "No CONFIGs found for [" + __PROCESSOR__ +"]"
#ENDIF


'define OSC 4
OSCCON=%01100000
cmcon = 7 'comparator off
ADCON1 = 7 'analog digital of
ANSEL=0 'set i/o to digital

TRISA=%11111111 'all A ports inputs
'PORTB=%00000000 'Initiate all port B pins to 'low
TRISB=%1100000 ' all ports outputs

main:
PORTB.0=0 'LED of
'PORTB.1=1
pause 1000 'Delay 1/2 second
PORTB.0=1 'LED on
'PORTB.1=0
PAUSE 1000 'Delay 1/2 second
goto main 'Loop back and do it again

 '****************************************************************
'*  Name    : TEST_0_16F88_config_3                             *
'*  Author  : [WVA]                                             *                
'*  Notice  : Copyright (WVA) 2014                              *
'*          : All Rights Reserved                               *
'*  Date    : May/ 2015                                         *
'*  Version : 1.0                                               *
'*  Notes   :  INITIAL_SETUP_16F88                              *
'*          :                                                   *
'****************************************************************
;----[16F88 Hardware Configuration]---------------------------------------------



#IF __PROCESSOR__ = "16F88"
 
  #DEFINE MCU_FOUND 1   
  
#CONFIG

cfg1 = _INTRC_IO    ; INTRC oscillator; CLKO function on RA6/OSC2/CLKO pin and port I/O function on RA7/OSC1/CLKI pin
cfg1&= _WDT_OFF                ; WDT enabled
cfg1&= _PWRTE_OFF             ; PWRT disabled
cfg1&= _MCLR_ON               ; RA5/MCLR/VPP pin function is MCLR
cfg1&= _BODEN_ON              ; BOR enabled
cfg1&= _LVP_OFF               ; RB3 is digital I/O, HV on MCLR must be used for programming
cfg1&= _CPD_OFF               ; Code protection off
cfg1&= _WRT_PROTECT_OFF       ; Write protection off
cfg1&= _DEBUG_OFF             ; In-Circuit Debugger disabled, RB6 and RB7 are general purpose I/O pins
cfg1&= _CCP1_RB0              ; CCP1 function on RB0
cfg1&= _CP_OFF                ; Code protection off
  __CONFIG _CONFIG1, cfg1
  
cfg2 = _FCMEN_ON              ; Fail-Safe Clock Monitor enabled
cfg2&= _IESO_ON               ; Internal External Switchover mode enabled
 

#ENDCONFIG

#ENDIF

;----[Verify Configs have been specified for Selected Processor]---
;   Note: Only include this routine once, after all #CONFIG blocks
  #IFNDEF MCU_FOUND
  #ERROR  "No CONFIGs found for [" + __PROCESSOR__ +"]"
  #ENDIF


 define OSC 4
 OSCCON=%01100000
 cmcon = 7          'comparator off
 ADCON1 = 7         'analog digital of
 ANSEL=0            'set i/o to digital

  TRISA=%11111111    'all A ports inputs
 'PORTB=%00000000    'Initiate all port B pins to 'low
  TRISB=%1100000    ' all ports outputs

 main:
  PORTB.0=0   'LED of
 'PORTB.1=1                                                                                          
 pause 1000               'Delay 1/2 second
  PORTB.0=1   'LED on
 'PORTB.1=0
 PAUSE 1000               'Delay 1/2 second
 goto main               'Loop back and do it again

[richard]

after only 10 months code posted in code tags , congratulations .
next step is to read and understand the replies .
what is the difference between my posted code in post#6 an yours (clue red)

[merlim]

I am very sorry about that !

Dear Richard Please disregard everything I posted so fare
had to go back to basics.
I drove every body crazy whit the 16F88 code.
I am very sorry about that !


USB U2 Not programming ?

Any body knows please Help:
PS: My first languish is German
typing on a German keyboard

I have installed :

PBP #3 Gold
Micro Code Studio Plus V 5.0.0.5
Compiler V PBPX 3.0.6.4
MPLAB IDE V 8.85

Programmer : USB U2 melabs 4.5. Firmware 5.9
Chip Target info ID 09A4 (16F877)

My problem started when I tried to program PIC16F88.

So I went back to BASICs:
I use the USB U2 melabs with a LAB-X2 from meLAB
Chip is 16F877-20/P .
Yes power is supplied to the LAB-X2
My programmer gets power from a powered USB Port

My program is blink3x2 from meLAB sample library for the LAB-X2

When I go [program compile inMicro Code Studio] it appears every thing is fine however
the red programming LED on the U2 Programmer is not flashing !
And I don’t get the desired results on the LAB-X2

When I program from the meLAB Programmer it appears to program just
fine [the red led is flashing].unfortunate I don’t get the desired results on the LAB-X2.
Except now the hex code is changed !

 ' Name        : BLINK3X2.pbp
' Compiler    : PICBASIC PRO Compiler 2.6
' Assembler   : PM or MPASM
' Target PIC  : 28/40-pin PIC types compatible with LAB-X2 board
' Hardware    : LAB-X2 Experimenter Board
' Oscillator  : 4MHz external crystal
' Keywords    : FOR NEXT
' Description : PICBASIC PRO program to blink 3 LEDS in sequence.
' 16F877

' Define LOADER_USED to allow use of the boot loader.
' This will not affect normal program operation.
'Define LOADER_USED 1

 i Var Byte   ' Define loop variable
LEDS Var PORTB  ' Alias PORTB to LEDS

   TRISB = %00000000  ' Set PORTB to all output

mainloop:
   LEDS = 1           ' First LED on
   Pause 500          ' Delay for .5 seconds

   For i = 1 To 2     ' Go through For..Next loop 2 times
     LEDS = LEDS << 1 ' Shift on LED one to left
     Pause 500        ' Delay for .5 seconds
   Next i
   Goto mainloop      ' Go back to mainloop and blink LED forever

   End

[richard]

if you compile this code

'****************************************************************
 '* Name : TEST_0_16F88_config_3 *
 '* Author : [WVA] * 
 '* Notice : Copyright (WVA) 2014 *
 '* : All Rights Reserved *
 '* Date : May/ 2015 *
 '* Version : 1.0 *
 '* Notes : INITIAL_SETUP_16F88 *
 '* : *
 '****************************************************************
 ;----[16F88 Hardware Configuration]---------------------------------------------



 #IF __PROCESSOR__ = "16F88"

 #DEFINE MCU_FOUND 1 

 #CONFIG

 cfg1 = _INTRC_IO ; INTRC oscillator; CLKO function on RA6/OSC2/CLKO pin and port I/O function on RA7/OSC1/CLKI pin
 cfg1&= _WDT_OFF ; WDT enabled
 cfg1&= _PWRTE_OFF ; PWRT disabled
 cfg1&= _MCLR_ON ; RA5/MCLR/VPP pin function is MCLR
 cfg1&= _BODEN_ON ; BOR enabled
 cfg1&= _LVP_OFF ; RB3 is digital I/O, HV on MCLR must be used for programming
 cfg1&= _CPD_OFF ; Code protection off
 cfg1&= _WRT_PROTECT_OFF ; Write protection off
 cfg1&= _DEBUG_OFF ; In-Circuit Debugger disabled, RB6 and RB7 are general purpose I/O pins
 cfg1&= _CCP1_RB0 ; CCP1 function on RB0
 cfg1&= _CP_OFF ; Code protection off
  __CONFIG _CONFIG1, cfg1

 cfg2 = _FCMEN_ON ; Fail-Safe Clock Monitor enabled
 cfg2&= _IESO_ON ; Internal External Switchover mode enabled
  __CONFIG _CONFIG2, cfg2

 #ENDCONFIG

 #ENDIF

 ;----[Verify Configs have been specified for Selected Processor]---
 ; Note: Only include this routine once, after all #CONFIG blocks
 #IFNDEF MCU_FOUND
 #ERROR "No CONFIGs found for [" + __PROCESSOR__ +"]"
 #ENDIF


 define OSC 4
 OSCCON=%01100000
 cmcon = 7 'comparator off
 ADCON1 = 7 'analog digital of
 ANSEL=0 'set i/o to digital

 TRISA=%11111111 'all A ports inputs
 'PORTB=%00000000 'Initiate all port B pins to 'low
 TRISB=%1100000 ' all ports outputs

 main:
 PORTB.0=0 'LED of
 'PORTB.1=1 
 pause 1000 'Delay 1/2 second
 PORTB.0=1 'LED on
 'PORTB.1=0
 PAUSE 1000 'Delay 1/2 second
 goto main 'Loop back and do it again

and manually load the hex file into the melabs programmer
is this what you get. changing to a 16f877 won't help and I have not got one to play with

[merlim]

The only reason I switch to the 16F877 was because I have one
and I installed it in the meLab LAB-x2 board

I want to make sure everything is from meLab and hopefully works
together including there program samples.

U2 programer, cable, LAB-X2 board , recommended PIC chip,
and there sample software (blink3x2) .

[merlim]

if you compile this code

'****************************************************************
 '* Name : TEST_0_16F88_config_3 *
 '* Author : [WVA] * 
 '* Notice : Copyright (WVA) 2014 *
 '* : All Rights Reserved *
 '* Date : May/ 2015 *
 '* Version : 1.0 *
 '* Notes : INITIAL_SETUP_16F88 *
 '* : *
 '****************************************************************
 ;----[16F88 Hardware Configuration]---------------------------------------------



 #IF __PROCESSOR__ = "16F88"

 #DEFINE MCU_FOUND 1 

 #CONFIG

 cfg1 = _INTRC_IO ; INTRC oscillator; CLKO function on RA6/OSC2/CLKO pin and port I/O function on RA7/OSC1/CLKI pin
 cfg1&= _WDT_OFF ; WDT enabled
 cfg1&= _PWRTE_OFF ; PWRT disabled
 cfg1&= _MCLR_ON ; RA5/MCLR/VPP pin function is MCLR
 cfg1&= _BODEN_ON ; BOR enabled
 cfg1&= _LVP_OFF ; RB3 is digital I/O, HV on MCLR must be used for programming
 cfg1&= _CPD_OFF ; Code protection off
 cfg1&= _WRT_PROTECT_OFF ; Write protection off
 cfg1&= _DEBUG_OFF ; In-Circuit Debugger disabled, RB6 and RB7 are general purpose I/O pins
 cfg1&= _CCP1_RB0 ; CCP1 function on RB0
 cfg1&= _CP_OFF ; Code protection off
  __CONFIG _CONFIG1, cfg1

 cfg2 = _FCMEN_ON ; Fail-Safe Clock Monitor enabled
 cfg2&= _IESO_ON ; Internal External Switchover mode enabled
  __CONFIG _CONFIG2, cfg2

 #ENDCONFIG

 #ENDIF

 ;----[Verify Configs have been specified for Selected Processor]---
 ; Note: Only include this routine once, after all #CONFIG blocks
 #IFNDEF MCU_FOUND
 #ERROR "No CONFIGs found for [" + __PROCESSOR__ +"]"
 #ENDIF


 define OSC 4
 OSCCON=%01100000
 cmcon = 7 'comparator off
 ADCON1 = 7 'analog digital of
 ANSEL=0 'set i/o to digital

 TRISA=%11111111 'all A ports inputs
 'PORTB=%00000000 'Initiate all port B pins to 'low
 TRISB=%1100000 ' all ports outputs

 main:
 PORTB.0=0 'LED of
 'PORTB.1=1 
 pause 1000 'Delay 1/2 second
 PORTB.0=1 'LED on
 'PORTB.1=0
 PAUSE 1000 'Delay 1/2 second
 goto main 'Loop back and do it again

and manually load the hex file into the melabs programmer
is this what you get. changing to a 16f877 won't help and I have not got one to play with

When I go [program compile inMicro Code Studio] it appears every thing is fine however
the red programming LED on the U2 Programmer is not flashing !
And I don’t get the desired results .

When I program from the meLAB Programmer it appears to program just
fine [the red led is flashing].unfortunate I don’t get the desired results.
Except now the hex code is changed !

[richard]

merlim I don't seem to be able to upload an image that actually works to this forum any longer I will try the other forum