Old analog guy needs help with PIC16F57

[yankee]

I'm not using ICSP. I made up an adapter cable to go directly from the programmer to the IC on a bread board.

I'm then disconnecting the program cable and testing the IC with an external power supply.

[Bruce]

Have you tried the read-back yet?

[yankee]

Yes, same exact results as above.

[Bruce]

Strange. I would try another resonator or crystal.

[yankee]

What code did you use?

[Bruce]

@ device  pic16F57, hs_osc, wdt_off, protect_off

DEFINE OSC 20

Time VAR BYTE

TRISB = 0  ' all outputs
Time = 10

Main:
    PORTB = 0
    PAUSE Time
    PORTB = 255
    PAUSE Time
    Time=Time+10
    IF Time >= 250 THEN Time = 10
    GOTO Main
    
    END

Source and .hex attached.

Note: You can't disable /MCLR on this one, so make sure you have the external pull-up.

[yankee]

OK, when I open your code with the programmer the configuration reads:

0000- 000a

After I install it on the IC, then read it, this is what I get:

0000- 0ffa

I have no idea if this means anything or not.