Peter wrote:> > I'm interested to know what people suggest for the HW side of things - > we're looking at adding a LCD to a Atmel SAM7 chip without an external > address bus and, so far, haven't come up with any good ideas. There > don't seem to be any 320x240 SPI based controllers around - one > suggestion was to put it in a FPGA and write some logic to convert > between SPI & an "address bus" based FGPGA video controller. > > PeterHave you looked at the Epson 1374 series ?. Has onboard framebuffer ram and a bus interface that can be coerced onto most micros... Chris -- Greenfield Designs Ltd ----------------------------------------------------------- Embedded Systems & Electronics: Research Design Development Oxford. England. (44) 1865 750 681
Best approach, LCD on ARM7
Started by ●July 12, 2006
Reply by ●July 14, 20062006-07-14
Reply by ●July 14, 20062006-07-14
"Ulf Samuelsson" <ulf@a-t-m-e-l.com> wrote in message news:e980he$3vp$1@emma.aioe.org...> "Henrik @ work" <henrik6650@ofir.dk> skrev i meddelandet > news:44b4e370$0$148$edfadb0f@dread11.news.tele.dk...> > Depending on your need for peripherals you could also consider the > AT91SAM9261 > which has an internal LCD controller optimized for 320 x 240. > The standard peripherals are more or less the same but it > lacks Ethernet, ADC and CAN of course.Actually I have been thinking alot about this controller as well. But I need the ethernet controller. And I have a feeling that the online community for this chip is smaller than for the ARM7 parts. Also I have done no investgation into SW tools and RT-kernel and such. I have no experience in using Linux for such a device and I think that buying a module from someone else will not be an option for us. So for now, I think we'll stick with the AT91SAm7X256 (When will the 512K version be out??) Best regards Henrik
Reply by ●July 14, 20062006-07-14
>> Depending on your need for peripherals you could also consider the >> AT91SAM9261 >> which has an internal LCD controller optimized for 320 x 240. >> The standard peripherals are more or less the same but it >> lacks Ethernet, ADC and CAN of course. > > Actually I have been thinking alot about this controller as well. But I > need the ethernet controller. And I have a feeling that the online > community > for this chip is smaller than for the ARM7 parts. Also I have done no > investgation into SW tools and RT-kernel and such. > > I have no experience in using Linux for such a device and I think that > buying a module from someone else will not be an option for us. >You do not need to use Linux for the device. A lot of the code from the U.Boot boot monitor can be used. This supports the DM9000E Ethernet controller present on the SAM9261EK. Later this year, you can get the SAM9263 with built in Ethernet and LCD control.> So for now, I think we'll stick with the AT91SAm7X256 (When will the 512K > version be out??) >Somewhere later this year.> Best regards > Henrik >-- Best Regards, Ulf Samuelsson This is intended to be my personal opinion which may, or may not be shared by my employer Atmel Nordic AB
Reply by ●July 14, 20062006-07-14
"Ulf Samuelsson" <ulf@a-t-m-e-l.com> wrote in message news:e986b6$bsr$1@emma.aioe.org...> You do not need to use Linux for the device. > A lot of the code from the U.Boot boot monitor can be used. > This supports the DM9000E Ethernet controller present on the SAM9261EK. > Later this year, you can get the SAM9263 with built in Ethernet and LCD > control.I will look into this more closely. Any suggestions for software ressources available are galdly appreciated. Best regards Henrik
Reply by ●July 15, 20062006-07-15
Henrik @ work wrote:> Hello group, > > For a new project, we have almost decided on AT91SAM7X256 for a variety of > reasons. Primarily due to its rich peripheral set and previuos knowledge of > Atmel Chips. > > But we need to implement a LCD display, preferably 320x240 pixels into our > system and we would like some advice on the best way to do this. With > respect to both hardware and software development. I.e how to get a grip on > this. would we use LCD controller or do direct IO from the processor? > > Any help, comments, links are gladly appreciated. > > Thanking you in advance. > > > HenrikHi Henrik - Olimex is coming out with a SAM7X256 dev board within a couple weeks that has an LCD display on it. You may want to check that out: http://olimex.com/dev/sam7-ex256.html -Mike