Which ARM processor to use...

Sure.. Check the i.MX families. Nice chips there, although they more are more suited to multimedia devices than Ethernet routing.

-jm

Reply to
Jukka Marin
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flash

in the

It's their unique position, as far as I know. No one else appears to have the staying power. I'm still supporting a PIC16C57. And last I tried, could still get windowed parts.

What they don't do anymore, and I forgive them, is make an equivalent to the old ICE 2000 system. The processor speeds and probably complexity of devices are making that nearly impossible (or only at a price few could afford.) The REAL ICE isn't. But it is what's available now.

I keep _all_ of my old compiler versions, if that's what you are talking about. Old code is compiled with old compilers. I install version after version under MPLAB so they are all available when I need them. Pain in the ass, at times.

I can't argue with that. I'd call Microchip if I had a problem to solve, though. So far, never a flinch and always fairly quick responses even when I don't ask for one.

But I take your points.

Jon

Reply to
Jon Kirwan

flash

ARM

board

does

12=

You could take a look at Renesas RX600.. they got a 100Mhz flsh.. but not sure about Ethernet.

I am using Freescale Cortex-M4 on a project. The Flahs max speed is 25Mhz, but you can always copy the crytical part of your code to RAM. Anyway i will probably move to Renesas on my next project.

Cya

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Reply to
Sink0

Yep, 125'C too IIRC. They declined to quote us, first time I have had that happen. Their disty contacted me a couple of months later saying they could quote me after all, but by then we had gone with ADI...

--

John Devereux
Reply to
John Devereux

I like that combination also---although I picked the STM32F207 for the CMOS camera interface, not the ethernet. I also picked up an STM32F407 Discovery board for free at the recent embedded systems conference. The 400 series chips have 192K SRAM, higher speed and an FPU. It could make an excellent controller for an AUV if I ever get around to really retiring with time for hobby projects.

IIRC, one of the features of the extra 64K SRAM on the 400 series is that it is on a separate bus and you can do DMA with it without any impact on the other SRAM bank. That might be an advantage in a data- intensive ethernet application.

Mark Borgerson

Reply to
Mark Borgerson

Meindert Sprang skrev 2011-10-27 12:47:

SAM9XE ? ARM926EJ-S @ 200 MHz Instruction and Data cache.

128/256/512 kB Flash SRAM somewhat limited - max 32 kB.

Similar peripherals, but later generation.

BR Ulf Samuelsson

Reply to
Ulf Samuelsson

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