[ELDK] MCV hardware

[Egor]

Wolfgang Denk <wd at ...> writes:

> 
> Dear Egor,
> 
> Above commands attempt to read four 32-bit-words from the start
> address plus offsets 0, 4, 8, and 12.  To make this work, your
> hardware must support such read operations.
> 
> > pio_iob3b (s1)
> >     0x000800a0        -        0xff2800a0
> 
> Is this a 32 bit register, i. e. does it support 32 bit read access
> from that address?
> What about the following address space - does it support 32 bit reads
> as well?
> 
> I recommend to try:
> 1) accessing a single address only, like:
> 	md ff2800A0 1
> 2) accessing only 8 bit at that address (byte read):
> 	md.b ff2800A0 1
> Does this give other results?

Yes, Wolfgang, it is 32-bit register.

I used
=> md ff2800A0 1
=> md ff2800A0 2
=> md ff2800A0 4
=> md.b ff2800A0 1
=> md.b ff2800A0 2
=> md.b ff2800A0 4

and I've got the same result, the system is hang