Re: QSPI PCS drops on MPC563

"Johnnie Blom" <[email protected]>
Newsgroups gmane.comp.hardware.motorola.microcontrollers
Message-ID <[email protected]>
Thanks for the input, 
I checked the things you point out, but still got the problem but
perhaps it is not possible to do what I want (but did not give a good
description) I want the PCS to be asserted even after I leave the last
position in the queue and remain like that until the next time I run
the queue.

Regards
Johnnie Blom

--- In [email protected], Dobbin Allan-r11834 <Allan.Dobbin@f...>
wrote:
> If CONT=1, PCS should remain asserted i.e. same value as you have in
PCSx in command RAM.  If CONT=0, PCS will return to PORTQS value as
this is the base (unasserted value) of the PCSx.
> 
> Make sure you are using as master, set relevant bits in PQSPAR and
DDRQ. Write opposite value to PORTQS (unasserted value) as to command
ram (asserted value). 
> 
> Regards,
> Allan
> 
> -----Original Message-----
> From: [email protected] [mailto:[email protected]] On
Behalf Of Johnnie Blom
> Sent: Wednesday, July 13, 2005 6:59 AM
> To: [email protected]
> Subject: [MPC500] QSPI PCS drops on MPC563
> 
> 
> Hello,
> I have a problem with the Periferal Chip Selects (PCS) on the QSPI
module of MPC563. 
> The problem is that the PCS is dropped (returned to PORTQS) when
transfer is complete even when the CONT bit is asserted. Are there
anyone who knows what could be the reason to this?
> 
> Best regards
> Johnnie Blom




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