>=20
> With a PIC16F84A it works well but when I use a pic16f628, the leds
> never be turned to ON in sequence.
>=20
Question is: What=B4s wrong?

 Well... I'm not sure what you did so far (some code might be useful), but=
=20
did you check the following:
* Did you turn off the comparators? (movlw 0x07 movwf CMCON)
* Did you make sure the registers start at 0x20 instead of the lower=20
location allowed in 16F84A? (Or better: made sure that the system=20
automatically alocates your registers?)
* Did you make sure the oscillator settings are such that the proper=20
oscillator is used? (The 16F628 has an internal one which might run at a=20
different frequency than your external one)
* Did you make sure to keep the RP0/RP1 bits set correctly, so they keep=20
pointing to the same register bank?
 Greetings,
Maarten Hofman.
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