HI all, Does that also include the SSP or only the SPI for the LPC2138? Regards, Charles -----Original Message----- From: lp2000c [mailto:lp2000c@...] Sent: Thursday, January 13, 2005 4:22 PM To: lpc2000@yahoogroups.com Subject: [lpc2000] Re: SPI usage This was true for the older devices, but according to Philips, this is no longer required for the 213x parts. You can use SSEL as GPIO. --- In lpc2000@yahoogroups.com, "Bill Knight" <BillK@t...> wrote: > On Thu, 13 Jan 2005 13:22:31 +1100, Bruce Paterson wrote: > > > Bruce Paterson wrote: > > A hardware question (it seems to be my day for questions!). If you > have SPI port enabled, used as a Master, do you have to tie the > SSEL0 pin high, or can you program that pin as a GPIO (and somehow the > SPI core gets a permanent high supplied to it internally) ? > > Seems a waste of an I/O pin to have to tie it high where most SPI > applications would be SPI master > ------------------------------------------------------------------ > Bruce > I believe the answer is yes, you must tie the SSEL0 pin high even > when operating in Master mode and yes, it seems a waste. > > -Bill Knight > http://www.theARMPatch.com Yahoo! Groups Links
Message
RE: [lpc2000] Re: SPI usage
2005-01-13 by Charles R. Grenz
Attachments
- No local attachments were found for this message.