Re: [ARMini-support] Armx6 JP4
- From: A Rawnsley <rcomp@xxxxxxxxxxx>
- To: armini-support@xxxxxxxxxxxxx
- Date: Mon, 23 Nov 2020 09:45:20 GMT
I/O hardware is out of reach from regular memory space, so first of all
remapping to a virtual addressbase is needed. Any address from the above
table should then be added to this virtual base. This results in the
actual address to act on. But this you knew of course.
I wrote a small JP4-testing tool. As some assembly was needed I used
BBC-BASIC, duly apologising for this outdated un-C-like approach.
Nevertheless, feel free to ask for it if you're interested.
I'd just like to thank Paul for this post - really fantastic info for
anyone interested in GPIO.
I'd be happy to host the BASIC program on the ARMX6 users' site, too.
Andrew
--
R-Comp
22 Robert Moffat, High Legh, Knutsford, Cheshire WA16 6PS
Tel: 01925 755043 Fax: 01925 757377
http://www.rcomp.co.uk
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