Re: how to configure ni_6602 for quad encoding?

On Thursday 09 March 2006 06:52 am, Stienen, A.H.A. (CTW) wrote:
> Ian,
>
> Why do you pick insn.n is 4? Isn't .n based on the number of sample
> points you want to get back when inserting a data-read request? In the
> original test programs of Klaas Gadeyne .n for the config insert was set
> to 0. This turned out only to work when first a data-read or a
> get-time-of-day was performed on the device, but when .n was set to 1,
> it did work properly without the GTODs or data-reads. But other than
> this, it seems to an irrelevant option for configuring.

It uses insn.n when copying the data array from user-space to kernel-space 
and back.  I expect the kernel would see random garbage in the data array 
if you set set insn.n too small.

-- 
Frank