Help for a new boy

Hi All

A bit new to all this but learning fast (I hope), and this seems a stupid question, but I don't know and if you don't know you have to ask so........

I have code which works fine on a 12f683, but I had originally planned to use 12f629 and so want to recode it. Now I know there are certain differences, but at the moment I cant even get simple code to work on the 629.

I have this that works on the 629

Code:

---

' Name        : Test44.pbp
' Compiler    : PICBASIC PRO Compiler 3.07
' Assembler  : PM
' Target PIC  : 8-pin PIC12F629
' Oscillator  : 4MHz internal
' Description : test file PICBASIC PRO program to show button press on LED.
'

DEFINE PIC12F629, INTRC_OSC,INTRC_OSC_NOCLKOUT,WDT_ON,PWRT_ON,MCLR_OFF, BOD_ON , CPD_OFF , PROTECT_OFF
Define OSCCAL_1K 1 ' PIC12F675, Calibrate internal oscillator

CMCON = 7      ' Analog comparators off
CLEAR

LED var gpio.1        ' Alias GPIO.0 to LED
PB  Var GPIO.0  ' Alias GPIO.3 to push button

' Button press turns on LED
 
  If PB = 0 Then ' If button pressed...
    low LED      ' Turn on LED
  Else
    high LED    ' Turn off LED
  Endif

  Goto mainloop  ' Do it forever
  End

---

However if I add lines after "'Button press ...." such as a short HIGH/PAUSE/LOW/PAUSE sequence all I get is the Led going High and the Prg appears to halt.

If I try similar code on the 683 it works - dont even have the opening DEF in there

Any help gratefully received

Confused Colin

Colin

You haven't defined the label for 'mainloop' and tell the processor to goto mainloop. You're probably getting errors while compiling this code.

Please tell us what version of PBP you are using, and if you know whether you are using MPASM or not.

Good catch Jerson . . .

just checked the code and have got mainloop defined - don't why it didn't copy over.

Code:

---

' Name        : Test44.pbp
' Compiler    : PICBASIC PRO Compiler 3.07
' Assembler  : PM
 'Button press turns on LED 

mainloop:

    If PB = 0 Then ' If button pressed...
    low LED      ' Turn on LED
  Else
    high LED    ' Turn off LED
  Endif

  Goto mainloop  ' Do it forever

  End

---

I am using PBP3.071 and and I guess MPASM if that is the default installed.

It will be easier for members to help if you post all your code. You don't have any CONFIGs, no oscillator setting, LED is not defined as a beginning.

Are the proper pins digital by default on this device?

Robert

The earlier code posted has all the detail

Led var GPIO.1 etc

Code:

---

DEFINE PIC12F629, INTRC_OSC,INTRC_OSC_NOCLKOUT,WDT_ON,PWRT_ON,MCLR_OFF, BOD_ON , CPD_OFF , PROTECT_OFF
Define OSCCAL_1K 1 ' PIC12F675, Calibrate internal oscillator

---

DOES NOT WORK IN pbp3.xxx which is why I asked you, in fact it does not work in MPASM with ANY version of PBP as it is for the PB assembler which PBP3.xx does not support.

Code:

---

@ __CONFIG _INTRC_OSC_NOCLKOUT & _WDT_ON & _PWRTE_ON & _MCLRE_OFF & _BOR_OFF & _FCMEN_OFF & _IESO_OFF

---

above would be how to config MPASM in PBP versions earlier than PBP3.00


PBP 3.xx configs are done as in below:

Code:

---

#CONFIG
    __CONFIG _INTRC_OSC_NOCLKOUT & _WDT_ON & _PWRTE_ON & _MCLRE_ON & _WDT_ON
;__config _CONFIG2, _WRT_OFF & _BOR40V
#ENDCONFIG

---

All that said you will need to make appropriate changes to what I posted for your particular chip, but that is how to format your configs

Thanks for the config help