Yahoo Groups archive

Lpc2000

Index last updated: 2026-04-28 23:31 UTC

Message

Re: LPC2138: Strange SSP Behavior

2005-01-11 by tah2k

Yes, but it doesn't seem to matter.

--- In lpc2000@yahoogroups.com, "johnnorgaard2003" <john_2005@c...> 
wrote:
> 
> Hi 
> 
> Have you selected the SSP function in PINSEL0 or PINSEL1 ?
> 
> 
> best regards
> 
> John
> 
> --- In lpc2000@yahoogroups.com, "tah2k" <tah2k@y...> wrote:
> > 
> > I'm writing the driver for the LPC2138 SSP block and I am 
> > encountering some strange behavior:
> > 
> > First of all, the user manual states SSPCR1, SSPCPSR, and 
SSPIMSC 
> > are all reset to 0x0 upon powerup.
> > 
> > I am finding the following values in these registers after reset:
> > SSPCR1 (0xE005C004): 0xF8
> > SSPCPSR (0xE005C010): 0x04
> > SSPIMSC (0xE005C014): 0x04
> > 
> > The processor ignores any writes of any data value to these 
> > locations.
> > 
> > Any ideas?
> > 
> > -Tim

Attachments

Move to quarantaine

This moves the raw source file on disk only. The archive index is not changed automatically, so you still need to run a manual refresh afterward.