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LPC1768 or LPC2368

Note: This was originally posted on 3rd February 2011 at http://forums.arm.com

Hi Guys,

I'm starting a new project in the Ethernet area.
I' need some clarifications before actually jump into that.

These are my questions:

1) What is the Difference B/w ARM7TDMI and Cortex M3
2) Can i go for LPC1768 or LPC2368?
3) Is uC Linux RTOS available for both?

I'll do the following:

1) communicate with PC at 10Mb/s
2) Measure current, voltage, and monitor for I/O input changes (alarm contact)?
3) Probably some SSL/TLS encryption in the TCP layer of my custom protocol
4) communication via RS485 to other peripherals

Thanks,

Tamir Michael over 12 years ago

Note: This was originally posted on 8th February 2011 at http://forums.arm.com

Most of this can be googled, but if I were you, I'd pick the LPC1768. It is so much more capable - just have a look at the data sheet/user manual.
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Alexei Toumantsev over 12 years ago

Note: This was originally posted on 8th February 2011 at http://forums.arm.com

3) Probably some SSL/TLS encryption in the TCP layer of my custom protocol

SSL/TLS might be a challenge on ARM7 @ 72MHz. Depends on your requirements, of course.

I'd estimate the private key RSA with 2048 bit keys to take 1-1.5 seconds (for a very well optimized implementation).
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