Hi David, I would use the LPC2119/2129 and a 32 or 64 macrocell CPLD to create a shift register. This is much easier than interfacing with an external CAN controller, and it would create a much better upgrade path to a newer LPC2xxx that has both CAN and SSP when it becomes available. Richard Duits. David Hawkins wrote: > Joel Winarske wrote: > >>Do any of the other LPC parts use double buffers on > >>their SPI transmit ports? > > > > I haven't followed this completely, but the SSP port has a FIFO. > > Ahhh, good-point. The LPC2129 doesn't have SSP though. > > I was kind of looking for a device with CAN too, since > a lot of the new equipment here at the observatory is > controlled via CAN. > > The User Manual I was looking at is for > > LPC2119/2129/2194/2292/2294 > > which I believe covers all the CAN-capable devices, and none > of these have SSP, so I would need to add an external CAN > controller. > > So, anyone had experience with an external Philips CAN > controller connected to say an LPC2138? > > (Isn't the CAN core used in the LPCs is a Philips part that > comes standalone - SJ??? comes to mind). It would need to > be SPI or I2C controlled (unless I went with an LPC with > EMI). > > Dave > > > ------------------------------------------------------------------------ > YAHOO! GROUPS LINKS > > * Visit your group "lpc2000 > <http://groups.yahoo.com/group/lpc2000>" on the web. > > * To unsubscribe from this group, send an email to: > lpc2000-unsubscribe@yahoogroups.com > <mailto:lpc2000-unsubscribe@yahoogroups.com?subject=Unsubscribe> > > * Your use of Yahoo! Groups is subject to the Yahoo! Terms of > Service <http://docs.yahoo.com/info/terms/>. > > > ------------------------------------------------------------------------ >
Message
Re: [lpc2000] Re: Multi-byte SPI transfers in slave mode (21-bitsactually)
2005-11-21 by Richard Duits
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