From mboxrd@z Thu Jan 1 00:00:00 1970 Message-ID: <3B66FBB1.B1239FFC@mvista.com> Date: Tue, 31 Jul 2001 14:40:49 -0400 From: Dan Malek MIME-Version: 1.0 To: "Pergola, Michael" Cc: "'linuxppc-embedded@lists.linuxppc.org'" , "Support (E-mail)" Subject: Re: SCC character recognition/DMA References: Content-Type: text/plain; charset=us-ascii Sender: owner-linuxppc-embedded@lists.linuxppc.org List-Id: "Pergola, Michael" wrote: > Has anyone attempted to utilize the character-recognition > feature of the SCC ports with any success? Yes, it does work, just make sure you have an SCC to use (there is only one on the 823, which is typically wired for Ethernet). > ...... but I > don't see if DMA is used to shuttle data to/from the serial > ports. Has that been attempted? The DMA must be used. It is the only way the CPM moves data to/from the devices. There is no programmed I/O to 8xx peripherals except the GPIO pins. -- Dan ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/