PIC12F675 ..won't program with Pickit2 and MPLAB X IDE

[treez]

Hello,
Do you know why my Pickit2 will not program the PIC12F675 that I have in-circuit? I get the following error message from MPLAB X....

BUILD SUCCESSFUL (total time: 344ms)
Loading code from C:/MPASM/LED Flasher.X/dist/default/production/LED_Flasher.X.production.hex...
Loading completed
Connecting to programmer...
The programmer could not be started: Could not connect to tool hardware: PICkit2PlatformTool, com.microchip.mplab.mdbcore.pickit2.PICkit2DbgToolManager

The Pickit2 application tells me that "Pickit2 found and connected"

Also, when I run the program, it doesn't work, even though the pickit2 application tells me "programming successful"

I am using MPLAB X IDE V2.10 and the pickit2 software is v2.55.02

By the way, here is the MPASM code....it simply flashes a led on and off until a pushbutton switch is pressed....if the switch is pressed again it goes back to flashing the led, etc etc...

list p=12f675 ;list directive to define processor
#include <p12f675.inc> ;processor specific definitions
__config (_INTRC_OSC_NOCLKOUT & _WDT_OFF & _PWRTE_OFF & _MCLRE_OFF & _CP_OFF & _BODEN_OFF & _CPD_OFF)


; define variables (general memory starts at 0x20)
count equ 20h ; number of millisecond delays
count1 equ 21h ; number of NOP delays
press equ 22h ;Holds flag telling whether or not pressed


; *** DECLARE MACRO'S ***
BANK0 macro
bcf STATUS,RP0
endm

BANK1 macro
bsf STATUS,RP0
endm
;************************

org 0
goto Start

Start:

BANK1
CLRF ANSEL ;Digital I/O

movlw 28h ;GP5=switch;GP4=LED
movwf TRISIO

bcf VRCON,VREN ;disable comparator ref

BANK0
;Disable interrupts as i don't want to use them
bcf INTCON,GIE
bcf PIR1,ADIF

CLRF GPIO ;Init GPIO
MOVLW 07h ;Set GP<2:0> to
MOVWF CMCON ;digital IO

clrf count
clrf count1
clrf press

;**************************
led_off:
call delay
call delay
bcf GPIO,GP4
led_off_1:
btfss GPIO,GP5
goto flash
goto led_off_1
;**************************


;**************************
flash:
call delay
call delay
call delay
flash_1:
;Flash the LED ON and OFF
bsf GPIO, GP4
call delay_flash
bcf GPIO, GP4
call delay_flash
goto flash_1
;**************************


;*****************************
delay_flash:
movlw 0xFF
movwf count
here:
movlw 0xFF
movwf count1

here1:
btfss GPIO,GP5
goto led_off
decfsz count1,1
goto here1

decfsz count,1
goto here
retlw 0x00
;******************************


;******************************
delay:
movlw 0xFF
movwf count
there:
movlw 0xFF
movwf count1

there1:
decfsz count1,1
goto here1

decfsz count,1
goto here
retlw 0x00
;******************************
end;

 

[Kripton2035]

use the release mode instead of debug mode when you program the pic ?

 

[treez]

thanks, though in 'MPLAB X' there is no release or debug mode, as I remember it, that was in the old MPLAB

 

[horace1]

MPLAB and MPLABX use different device drivers
have you used the MPLAB driver switcher to check that the Pickit2 is set up for MPLAB X?

 

[treez]

I am sure MPLAB X can handle the pic12f675, because when I set up the project, it offered me to pick the pic12f675 as an option, which I did.

I must admit I didn't download the pickit2 device firmware from the following download page...I wonder if I have to do that?
**broken link removed**
..the device firmware is a hex file, but I don't know what to do with it, or even of I should do anything with it.?

 

[horace1]

there appears to be problems with Pickit2 and MPLABX

if you do a web search for mplabx and pickit2 it will give plenty of links in particular on the Microchip forums

 

[treez]

thanks, ok, I have been thrown off by an error message in MPLAB X......I have gotten it to work now.....at least with a simpler led flash program.......goodness knows why MPLABX reports that it cant find the pickit2
Sorry for your time......thankyou for your help