I am looking for a reputable single-board computer or development board kit that has these features. any suggestions? * can act as a SPI (synchronous serial port) slave with clock frequency anywhere in the 5-12MHz range & has some kind of FIFO (so I don't have to handle an interrupt for each incoming byte/word). This is the most important requirement & I'm having a hard time finding docs on single-board computers that meet it. * has >= 16MB RAM onboard * has SD card slot (compact flash acceptible but less preferable) & cards are hot-pluggable * has either an ethernet jack and/or USB device (fullspeed or highspeed) jack. USB probably preferable; I want to plug this thing into a PC to exchange data. * has some kind of external address/data bus that I can hook up a few things on a small daughterboard * is likely to be around for at least 5 years * has a decent software development environment that's not outrageously expensive. Would prefer no OS or a simple RTOS, not WinCE. * real-time-clock is a very-nice-to-have but I can probably live without it. * RS232 UART is a very-nice-to-have but I can probably live without it. I've been looking at some PXA270 single-board computers, they seem like they might a good fit, but can't find the documentation on whether it can handle my SPI slave requirement. TI 5509A DSP evaluation board also looks ok, and I'm familiar with Code Composer as the IDE, but my only reservation is that it forces me to use USB (no ethernet, no UART unless I put one on a daughterboard & connect it to CPU via parallel interface).
looking for single-board computer with SPI slave port
Started by ●July 12, 2006
Reply by ●July 12, 20062006-07-12
> * can act as a SPI (synchronous serial port) slave with clock frequency > anywhere in the 5-12MHz range & has some kind of FIFO (so I don't have > > * is likely to be around for at least 5 years > > I've been looking at some PXA270 single-board computers, they seem likeAlmost certainly will not meet your 5 year availability requirement. Considered rolling something semi-custom out of an FPGA?
Reply by ●July 13, 20062006-07-13
www.compulab.com ? "Jason S" <jmsachs@gmail.com> a �crit dans le message de news: 1152743475.766250.19610@s13g2000cwa.googlegroups.com...>I am looking for a reputable single-board computer or development board > kit that has these features. any suggestions? > > * can act as a SPI (synchronous serial port) slave with clock frequency > anywhere in the 5-12MHz range & has some kind of FIFO (so I don't have > to handle an interrupt for each incoming byte/word). This is the most > important requirement & I'm having a hard time finding docs on > single-board computers that meet it. > > * has >= 16MB RAM onboard > > * has SD card slot (compact flash acceptible but less preferable) & > cards are hot-pluggable > > * has either an ethernet jack and/or USB device (fullspeed or > highspeed) jack. USB probably preferable; I want to plug this thing > into a PC to exchange data. > > * has some kind of external address/data bus that I can hook up a few > things on a small daughterboard > > * is likely to be around for at least 5 years > > * has a decent software development environment that's not outrageously > expensive. Would prefer no OS or a simple RTOS, not WinCE. > > * real-time-clock is a very-nice-to-have but I can probably live > without it. > > * RS232 UART is a very-nice-to-have but I can probably live without it. > > I've been looking at some PXA270 single-board computers, they seem like > they might a good fit, but can't find the documentation on whether it > can handle my SPI slave requirement. TI 5509A DSP evaluation board also > looks ok, and I'm familiar with Code Composer as the IDE, but my only > reservation is that it forces me to use USB (no ethernet, no UART > unless I put one on a daughterboard & connect it to CPU via parallel > interface). >
Reply by ●July 13, 20062006-07-13
Sorry : I mean www.compulab.co.il ? "Robert Lacoste" <see-my-email-at@www.alciom.com> a �crit dans le message de news: 44b5e5a8$0$818$ba4acef3@news.orange.fr...> www.compulab.com ? > > "Jason S" <jmsachs@gmail.com> a �crit dans le message de news: > 1152743475.766250.19610@s13g2000cwa.googlegroups.com... >>I am looking for a reputable single-board computer or development board >> kit that has these features. any suggestions? >> >> * can act as a SPI (synchronous serial port) slave with clock frequency >> anywhere in the 5-12MHz range & has some kind of FIFO (so I don't have >> to handle an interrupt for each incoming byte/word). This is the most >> important requirement & I'm having a hard time finding docs on >> single-board computers that meet it. >> >> * has >= 16MB RAM onboard >> >> * has SD card slot (compact flash acceptible but less preferable) & >> cards are hot-pluggable >> >> * has either an ethernet jack and/or USB device (fullspeed or >> highspeed) jack. USB probably preferable; I want to plug this thing >> into a PC to exchange data. >> >> * has some kind of external address/data bus that I can hook up a few >> things on a small daughterboard >> >> * is likely to be around for at least 5 years >> >> * has a decent software development environment that's not outrageously >> expensive. Would prefer no OS or a simple RTOS, not WinCE. >> >> * real-time-clock is a very-nice-to-have but I can probably live >> without it. >> >> * RS232 UART is a very-nice-to-have but I can probably live without it. >> >> I've been looking at some PXA270 single-board computers, they seem like >> they might a good fit, but can't find the documentation on whether it >> can handle my SPI slave requirement. TI 5509A DSP evaluation board also >> looks ok, and I'm familiar with Code Composer as the IDE, but my only >> reservation is that it forces me to use USB (no ethernet, no UART >> unless I put one on a daughterboard & connect it to CPU via parallel >> interface). >> > >
Reply by ●July 13, 20062006-07-13
"Jason S" <jmsachs@gmail.com> skrev i meddelandet news:1152743475.766250.19610@s13g2000cwa.googlegroups.com...>I am looking for a reputable single-board computer or development board > kit that has these features. any suggestions? > > * can act as a SPI (synchronous serial port) slave with clock frequency > anywhere in the 5-12MHz range & has some kind of FIFO (so I don't have > to handle an interrupt for each incoming byte/word). This is the most > important requirement & I'm having a hard time finding docs on > single-board computers that meet it. > > * has >= 16MB RAM onboard > > * has SD card slot (compact flash acceptible but less preferable) & > cards are hot-pluggable > > * has either an ethernet jack and/or USB device (fullspeed or > highspeed) jack. USB probably preferable; I want to plug this thing > into a PC to exchange data. > > * has some kind of external address/data bus that I can hook up a few > things on a small daughterboard > > * is likely to be around for at least 5 years > > * has a decent software development environment that's not outrageously > expensive. Would prefer no OS or a simple RTOS, not WinCE. > > * real-time-clock is a very-nice-to-have but I can probably live > without it. > > * RS232 UART is a very-nice-to-have but I can probably live without it. > > I've been looking at some PXA270 single-board computers, they seem like > they might a good fit, but can't find the documentation on whether it > can handle my SPI slave requirement. TI 5509A DSP evaluation board also > looks ok, and I'm familiar with Code Composer as the IDE, but my only > reservation is that it forces me to use USB (no ethernet, no UART > unless I put one on a daughterboard & connect it to CPU via parallel > interface). >Try the www.iotech.dk Webnet module. It includes AT91RM9200 SDRAM Flash Ethernet USB slave support (full speed) SDcard support The SPI slave has neother FIFO nor DMA support. Xilinx FPGA. Runs Linux (and will certainly run many RTOS or bare machine) You can implement the SPI slave in the FPGA: -- 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 13, 20062006-07-13
Robert Lacoste wrote:> Sorry : I mean www.compulab.co.il ?huh, funny you should mention that... I just found out my officemate is working on a project (which has part purchasing lifetime requirements more important than mine) using their PXA270 boards, I'll probably end up going that route. SPI slave support seems to be ok up to 13MHz which will probably work for me, now I just have to find out what they offer/need for SPI framing signals. larwe wrote:> Considered rolling something semi-custom out of an FPGA?urk. I have essentially no resources; I need something I can buy and spend my effort solely on software development. if I am lucky enough to get help spinning a hardware board it would be for a small daughterboard with a parallel DAC on it.
Reply by ●July 16, 20062006-07-16
"Jason S" <jmsachs@gmail.com> wrote in message news:1152743475.766250.19610@s13g2000cwa.googlegroups.com...> I am looking for a reputable single-board computer or development board > kit that has these features. any suggestions?* requirements snipped * The requirements you list don't seem to require a whole SBC. I can think of a few microcontrollers that would do this with a little work. Are you looking for something off the shelf simply because it's a one-off project or a prototype of some kind? What does it need to do besides move bytes between the SPI port and the memory? Would you be interested in having something custom made? What quantities and schedule do you have? -Regards, Travis
Reply by ●July 24, 20062006-07-24
