gjs
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What is AMA in /dev/ttyAMA0

Mon Jun 11, 2012 12:46 am

I have connected an RS232 (MAX3232) adapter to the UART via the GPIO pins and it's working fine after I followed some instructions to get the console off of tty0. However, I've ended up with the port on ttyAMA0. My question is, what does the AMA stand for? Much googling has yielded nothing.

Thanks.

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AndrewS
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Re: What is AMA in /dev/ttyAMA0

Mon Jun 11, 2012 2:28 pm


gjs
Posts: 148
Joined: Fri Dec 02, 2011 8:04 pm

Re: What is AMA in /dev/ttyAMA0

Tue Jun 12, 2012 9:48 am

Thanks Andrew. Yes, I'm so glad I asked!

So it seems this is the name of a bus on the SOC, presumably the bus that the UART hangs off of. Fascinating!

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AndrewS
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Re: What is AMA in /dev/ttyAMA0

Tue Jun 12, 2012 3:21 pm

For even more info, have a look at http://elinux.org/Rpi_Low-level_peripherals and the chipset datasheet it links to, and search for 'amba' on http://lists.infradead.org/pipermail/li ... 00027.html

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