Still nothing.

Is a Murata CSTLS20M0X53-B0 20 MHZ resonator suitable for this IC?

I have the two outside leads connected to OSC1 and OSC2. The center pin is connected to ground.

I checked continuity and everything appears to be OK. I also checked the LED and it functions OK.

Here's the code that I tried:

Code:
@ device  pic16F57, hs_osc, wdt_off, protect_off

DEFINE OSC 20

main:
TRISB=0
here:
PORTB=0
Pause 2000
PORTB=255
pause 2000
goto here

end