RE: QSPI PCS drops on MPC563
Dobbin Allan-r11834 <[email protected]>
| Newsgroups | gmane.comp.hardware.motorola.microcontrollers |
|---|---|
| Message-ID | <45E41B46B1F8D81183E4000F20D7C40B0B5684E0@az33exm40-bu.am.freescale.net> |
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 ----------------------------------------------------------- To learn more about Freescale Microcontrollers, please visit http://www.freescale.com/mcu Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/MPC500/ <*> To unsubscribe from this group, send an email to: [email protected] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/