Anyone can help me about configuring the external cristal for the ADuC7026. I tried to put the PLLKEYs and POWKEYs but the firmware doesn't work. I tried to put it in main() and in startup.s but doesn't work. If i remove it, the uC takes the int oscilator and works fine but i need to take the external xtal because of precision.
Which revision is your chip? This is from the errata sheet for revision E3W: "Issue A: The ADuC702x will not operate correctly when clocked from an external 32kHz crystal."