Re: QADC in MPC565 not accepting changing waveforms

"Julian Requejo" <[email protected]> Thu, 18 Jan 2007 14:02:11 +0100

Newsgroups	gmane.comp.hardware.motorola.microcontrollers
Message-ID	<[email protected]>

Hi umamahesh,

I would first check your setup. Do you have an external pull-up resistor? If so, make sure to disable the internal ones by setting the PRDS-bit in the PDMCR-register (0x2FC03C)

If this is correct, then look at the software. How are you running your conversion? Start by running in polling mode before you start using interrupts.

-Julian