Ilyssa Tzivia wrote: > On Jan 19, 2008 10:29 AM, Stephen Berry <[EMAIL PROTECTED]> wrote: > > > Stephen, > > Thanks for your help. I have some follow up questions. > > >> - the TI webpage says "On-board Ethernet controller with application notes >> and schematics". Does this mean the DM355 does not have an on-chip MAC and >> that it requires an external MAC/PHY chip? If I wanted to create a DM355 >> solution with two ethernet interfaces such as LAN and WAN, would I need to >> write special drivers or require major board changes? The MAC/PHY is >> external - it is attached to the AEMIF bus. To implement another ethernet >> interface you need to modify the CPLD code to add an additional chip select >> and modify drivers for the address space change. >> > > This seems more complex than I anticipated. I searched TI's website > for related application notes but did not find anything. You mentioned > CPLD code so I'm trying to figure out what this CPLD is. > > The CPLD on the 355DVM does AEMIF address space decoding between the NAND flash (which needs two address spaces) and the MAC. If you are not comfortable with writing VHDL then this could be an issue for you. The EVM does come with the boards CPLD (complex programmable logic device) code. >> - does the DM355 DVEVM have any mechanism to connect to an LCD display like >> an 24-bit or 16-bit TTL TFT LCD? There is a parallel interface (VPBE) for >> LCDs. >> > > I've started searching on application notes for how to connect the > VPBE to an LCD. There is a 50 pin header labeled "video out" on the > Spectrum Digital photo of the DM355 DVEVM, is this something that can > be wired directly to a 7" TFT 16-bit TTL LCD. I am searching for > compatible LCDs as well. > > That is what the interface is for. As for what works with it and what you would need to do (like load the appropriate modules in the kernel) I'm not completely sure.
Have you tried talking to Ti? The FAE in our area has been very responsive with our questions in the past. > Thank you, > Ilyssa >
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