On 04/03/2019 11:58, Andy James wrote:
I need to access some memory mapped registers (AXI bus, Zynq,
Zedboard) in my init.c program – I can’t seem to find a simple way of
doing this
In RTEMS (as in devmem.c in Linux). Can anyone point me to some
resources that describe how to do this?
There is no standard API for low-level IO access in RTEMS such as
https://www.freebsd.org/cgi/man.cgi?query=bus_space&apropos=0&sektion=9
or the Linux <asm/io.h>.
Device registers are usually accessed via structures and a volatile
pointer plus BSP/architecture specific memory barriers.
--
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