GP2 on a 10F202 as output

[mat janssen]

I read the whole datasheet of the 10F202 and I did not succeed in finding how to set GP2 as an output.
When I put a led via a resistor at GP0, GP1 and GP2 only the GP0 and GP1 leds are working the led on GP2 remains off. (not broken).
See small example.
What do I forget ??


'test voor 10f202

@ DEVICE PIC10F202,INTRC_OSC
@ DEVICE PIC10F202,MCLR_OFF
@ DEVICE PIC10F202,PROTECT_OFF
@ DEVICE PIC10F202,WDT_OFF

DEFINE OSC 4

TRISIO = %00000000
OSCCAL.0 = 0

UIT1 VAR GPIO.0
UIT2 VAR GPIO.1
UIT3 VAR GPIO.2
IN1 VAR GPIO.3






BEGIN:
IF IN1 = 0 Then
UIT1 = 0
UIT2 = 1
UIT3 = 0
EndIF

IF IN1 = 1 Then
UIT1 = 1
UIT2 = 0
UIT3 = 1
EndIF

GoTo BEGIN

[skimask]

I read the whole datasheet of the 10F202 and I did not succeed in finding how to set GP2 as an output.
When I put a led via a resistor at GP0, GP1 and GP2 only the GP0 and GP1 leds are working the led on GP2 remains off. (not broken).
See small example.
What do I forget ??


'test voor 10f202

@ DEVICE PIC10F202,INTRC_OSC
@ DEVICE PIC10F202,MCLR_OFF
@ DEVICE PIC10F202,PROTECT_OFF
@ DEVICE PIC10F202,WDT_OFF

DEFINE OSC 4

TRISIO = %00000000
OSCCAL.0 = 0

UIT1 VAR GPIO.0 : UIT2 VAR GPIO.1 : UIT3 VAR GPIO.2 : IN1 VAR GPIO.3

BEGIN:
IF IN1 = 0 Then
UIT1 = 0:UIT2 = 1:UIT3 = 0
EndIF

IF IN1 = 1 Then
UIT1 = 1:UIT2 = 0:UIT3 = 1
EndIF

GoTo BEGIN


10F202 datasheet (DS41239A)....page 21 (Section 4.6) and page 37 (Section 8.0) will give you all the answers you need.

[mister_e]

i'll bet on


OPTION_REG.5=0

[mat janssen]

@ Skimask:
I read that part. Thats why I put in the programm :OSCCAL.0 = 0

@ Mister_e:
You win the price. That helped.
I read also that the option reg bit 5 should be 0 , but I wrote at that time in my programm OPTION.5 = 0 , and the compile gave me an error. I forgot to type it in the correct way.
Thanks.
Regards
Mat

[mister_e]

yup OPTION.5 won't work unless you decide to redefine it

@OPTION=OPTION_REG
OPTION VAR BYTE EXT
' or the simple one
OPTION VAR OPTION_REG


Doesn't help if you don't know OPTION_REG ;)

In this case you could still open the filename.ASM file, there you'll have...


R0 EQU RAM_START + 000h
R1 EQU RAM_START + 002h
R2 EQU RAM_START + 004h
FLAGS EQU RAM_START + 006h
R4 EQU RAM_START + 007h
R3 EQU RAM_START + 008h
GOP EQU RAM_START + 00Ah
OPTION_REG EQU RAM_START + 00Bh
RM1 EQU RAM_START + 00Ch
RR1 EQU RAM_START + 00Dh
SOFT_STACK_PTR EQU RAM_START + 00Eh
TRISIO EQU RAM_START + 00Fh
SOFT_STACK EQU RAM_START + 010h

[mat janssen]

I know, but still !!

[n0yox]

I can not seem to program a 10f202 I always get "programming error at 0000" however if I read it I can write the info back to the chip?

[mackrackit]

I can not seem to program a 10f202 I always get "programming error at 0000" however if I read it I can write the info back to the chip?
Code?
What are you reading from the chip ?

[mister_e]

Sound high likely an ICSP problem. Which programmer & Software?

Did you tried on a Ziff socket? Are your sure your ICSP circuit is properly implemented?

[n0yox]

I am using an epic plus programmer ver.4.22 and picbasicpro ver 2.50. I have a homemade programming adapter. I can read the blank chip "all 0fff" and the calibration register. I can load the hex file that I just read but can not load the hex files I create. I have no problem with other micros, however this is the only micro I just this program adapter with?

Thank you for your help!

[n0yox]

I believe this is correct for the epic programmer?

[mackrackit]

What about the code you are trying to load?

[n0yox]

@ DEVICE PIC10F202,INTRC_OSC
@ DEVICE PIC10F202,MCLR_OFF
@ DEVICE PIC10F202,PROTECT_OFF
@ DEVICE PIC10F202,WDT_OFF
DEFINE OSC 4

BEGIN:
high GPIO.0
pause 500
low GPIO.0
pause 500
GoTo BEGIN

[mackrackit]

@ device pic10f202,mclre_off
Could be a missing "e" ???

[mackrackit]

_MCLRE_ON EQU H'0FFF'
_MCLRE_OFF EQU H'0FEF'
_CP_ON EQU H'0FF7'
_CP_OFF EQU H'0FFF'
_WDT_ON EQU H'0FFF'
_WDT_OFF EQU H'0FFB'
_IntRC_OSC EQU H'0FFF'

Are the config options when using MPASM. PM might be different...