My Business Card Runs Linux

Re:My Business Card Runs Linux by joezydeco on Tuesday December 24, 2019 @10:18AM (#21872558)

The roadblock has always been the MMU. Vanilla Linux won't work without it, and uCLinux is always in some strange phase of support for newer architectures if it's supported at all.

I found a decent port of uCLinux to the Cortex-M3 once, but the host core was 120 MHz and it was pretty much a science experiment and not much more.

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Re:My Business Card Runs Linux by linuxlizard on Tuesday December 24, 2019 @10:28AM (#21872628)

I can't tell from the datasheets and the description. Does this ucontroller have an MMU?

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Re:My Business Card Runs Linux by jng on Tuesday December 24, 2019 @10:30AM (#21872640)

It’s an A9, same as on Xilinx Zynq 7000 series, 32-bit ARM core with full MMU.

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Re:My Business Card Runs Linux by xfer on Tuesday December 24, 2019 @03:50PM (#21874828)

No the zynq chips have a cortex-A9, which is armv7, this is armv5. It still does have a MMU.

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Re:My Business Card Runs Linux by jng on Wednesday December 25, 2019 @01:31PM (#21879796)

Oh, my bad, I misread the datasheet, read "A9" where it says "ARM9". Thanks for the correction.

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Re:My Business Card Runs Linux by carlosperate on Wednesday December 25, 2019 @06:56AM (#21878147)

For comparison, the Raspberry Pi 1 had an armv6 core.

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Re:My Business Card Runs Linux by RealityVoid on Tuesday December 24, 2019 @05:31PM (#21875383)

I expect that it being a M3 it had a MPU but not am MMU.

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