From: David Rye <d.rye@ac...> - 2008-06-07 15:39:52
Can anyone tell me
a) If I am using the LCD controller but the my LCD screen used does not need
the L_LCLK or L_FCLK signals, can I use the L_LCLK pin as GPIO74 and the
L_FCLK pin as GPIO75? That is, does enabling the LCD controller remove all
of the L_XXX pins from being used as GPIOs?
Intel's docs say "When the LCD controller is disabled, all of its pins can
be used for GPIO." but I can't find any mention of the converse situation.
If I *can* use a few of them as GPIOs, how do I make this configuration -
allow the kernel to enable the LCD controller and then reprogram GPIO74 and
GPIO75 from user space??
b) Also, if I am using a UART (for example FFUART) without using the flow
control pins FF_CTS and FF_RTS, can I use FF_CTS and FF_RTS as GPIO35 and
GPIO41? Again, how do I make this configuration?
Thanks for any assistance...
View this message in context: http://www.nabble.com/PXA255-GPIO-Hardware-Question-tp17710096p17710096.html
Sent from the Gumstix mailing list archive at Nabble.com.
Get latest updates about Open Source Projects, Conferences and News.