USB U2 Not programming ?

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 toprogram PIC16F88.


So I went back to BASICs:
I use the USB U2 melabs with a LAB-X2from meLAB
Chip is 16F877-20/P .
Yes power is supplied to the LAB-X2
My programmer gets power from a poweredUSB Port


My program is blink3x2 from meLABsample library for the LAB-X2
When I go [program compile inMicro CodeStudio] it appears every thing is fine however
the red programming LED on the U2Programmer is not flashing !
And I don’t get the desired resultson the LAB-X2


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

Code:

---

' 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

---

Are the oscillator jumpers set properly on the Lab X2?

Is the PIC installed properly?

Robert

Are the oscillator jumpers set properly on the Lab X2?

[No Oscillator jumpers 4 MH Crystal only]

Is the PIC installed properly?
[Notch in the wright direction]
[I hope so, I puled it up and pressed it down]
I hope so, I puled it up and pressed it down
it reads the chip and erases.
Only one jumper for 5k Pot

I hope so, I puled it up and pressed it down
it reads the chip and erases.

Maybe voltmeter on Lab X2 transformer jack to make sure it's working?

Are there other chips installed on Lab X2 that might interfere?

Maybe voltmeter on Lab X2 transformer jack to make sure it's working?
My power supply is from a regulated filtered 3A 12v Omron
LAB_x hase a 7805 regulator
chip has 5 v power
Jack is working, led is on !
Are there other chips installed on Lab X2 that might interfere?
No no other chips are installed.


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) .

Are the oscillator jumpers set properly on the Lab X2?

[No Oscillator jumpers 4 MH Crystal only]

Is the PIC installed properly?
[Notch in the wright direction]
[I hope so, I puled it up and pressed it down]
I hope so, I puled it up and pressed it down
it reads the chip and erases.
Only one jumper for 5k Pot