On Monday 05 June 2017 10:20:03 Bertho Stultiens wrote:

> On 06/04/2017 06:15 AM, john mcintyre wrote:
> > Your saga continues, you must be related to a bulldog😊 ,once locked
> > on  it cannot let go.
>
> Isn't this what you call a challenge?
>
>
> Anyway, I've fixed a couple of things, like endianness, which I did
> wrong in the previous versions. This implementation is hard-coded to
> use the RPI hardware peripherals. Also, you can now attach to SPI0 or
> SPI1 ports on the 40-pin header and you may choose any CE line you
> wish (updated man page also attached).
>
> My tests so far have seen stable results, timing wise, although I
> cannot test functionally on a real system (lacking a 7i90 in my
> inventory). Though, the timing has improved with respect to the
> original version.
>
> Read and write SPI clock frequencies may be different now. This will
> help to overcome the SPI round-trip delay while reading (just lower
> the read frequency setting), or when you want buffers on the SPI
> lines.
>
> So, if anybody wants to have a go and test this, please do so and tell
> me how it goes. In the meantime... need to get my hands on a 7i90 (and
> upgrade the mill at the local hackerspace).

Does the image I downloaded Saturday and wrote to an sd card yesterday 
have this stuff in it? I got sidetracked today, doing a poor man's 
set-true to the chuck, and getting it under a thou. Can't go any farther 
w/o reaming the bolt holes in the backing plate a wee bit. Thats pretty 
close, and I've no reamer kit.  Yet. Just one of several items I need to 
acquire, like a live center which I didn't get with it.  And of course 
more tooling, never have enough.

Back when I bought the ER-40 kit, someone said I couldn't use long 
workpieces with it, but it clears several feet of nominally 7/8" OD 
stock, so as long as the OD is no more than that, I don't see a problem, 
but I'll have to make a spider for the left end of the spindle, easily 
done if I can find some brass acorn nuts.

I'll see if I can pull the cover tomorrow and try the new sd card, 
Bertho.  Depends on the weather.

Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>

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