Bright Star's ipEngine, using an 823, has SMC1 and SMC2 also. When used with their pKernel, both serial ports are available. When used with Linux, only SMC1 is available. I noticed it, and thought it might be easy to fix, but that's not important to me, since I only use the ipEngine for prototyping. -- Dave Brown <dbrown03 at harris.com> Principal Engineer, Software Harris Corporation RFCD
> -----Original Message----- > From: Dan Malek [mailto:dan at netx4.com] > Sent: Wednesday, June 07, 2000 1:05 PM > To: Grant Carter > Cc: linuxppc-embedded > Subject: Re: SMC2 > > > > Grant Carter wrote: > > > When I look at my manuals, I see no reference made to the > bits 20 and 21 > > in pbpar, pbdir or pbodr. How does setting those bits > enable the SMC2 > > pins? Those are located in Port A (PA8 and PA9) > > > > I guess my point is why are the Port B registers being > modified for SMC2 > > pins which are found in Port A? > > Oh oh......are you using an 823 or 850? Sorry about this, you will > have to change the code. Someday, I have to finish up a better UART > driver. You are the first person I know that is trying to use this > as a UART. SMC2 is the first thing to disappear when using the parts > for other data communication protocols or interfaces, so custom > software tends to assign these for other purposes. I seldom > see anything > but SMC1 used for a UART, so making the driver better hasn't been > high on the list...... > > > -- Dan > ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
