Hi there,
I am working on Phytec minimodul c167 and i would like to change the Pins 6.0, 6.1, 6.2, 6.3, 6.4 from Chip select mode to general purpose I/O. I know they are configured by RP0H in CSSEL but how i can be able to change that, as it's said that it can't be changed via software.
I would appreciate greatly any help, thanks in advance
Do you mean the Keil C167 compiler manual, or the Infineon manual for the C167 chip?
Can you give a link?
"Any idea how to change this"
It must be in one of those manuals - surely?
Or is it defined by the board you are using - in which case, check the board manual!
In the chip manual off course
http://www.keil.com/dd/docs/datashts/infineon/c167cr_um.pdf
i did check the manual no additional information on changing the these pins functionalities.
What about the SYSCON register?
Hmmm, you mean CSCFG (Chip select configuration Control) ?
So how did you manage to miss this sentence, which is directly above the one you were referring to earlier, about CSSEL being read-only>
The number of chip select signals is selected via PORT0 during reset.
How much clearer does a datasheet have to be?
Cheers, i read this sentence but still am not sure how to configure this port during reset ?
Read section 7.3, Alternate Port Functions in the User Manual...
Then look at the schematics of your board, and the documentation that describes how it has implemented its Chip-Select configuration...
Thanks, cheers.