Groups > sci.electronics.design > #460680

Re: [OT] I got a JOB!!!

Subject	Re: [OT] I got a JOB!!!
Newsgroups	sci.electronics.design, comp.dsp, comp.arch.embedded
References	(2 earlier) <c7udnfj5fdiG-4HEnZ2dnUU7-cmdnZ2d@giganews.com> <Yu%SA.45135$m94.43852@fx33.am4> <dM6dna6-keoVG4HEnZ2dnUU7-dednZ2d@giganews.com> <SS%SA.62431$ex.41042@fx07.am4> <dM6dnau-kepVFoHEnZ2dnUU7-dednZ2d@giganews.com>
From	Tom Gardner <spamjunk@blueyonder.co.uk>
Message-ID	<580TA.12225$3w1.6575@fx41.am4> (permalink)
Organization	virginmedia.com
Date	2017-05-17 18:55 +0100

Cross-posted to 3 groups.

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On 17/05/17 18:43, Tim Wescott wrote:
> On Wed, 17 May 2017 18:36:52 +0100, Tom Gardner wrote:
>
>> On 17/05/17 18:21, Tim Wescott wrote:
>>> On Wed, 17 May 2017 18:11:22 +0100, Tom Gardner wrote:
>>>
>>>> On 17/05/17 16:02, Tim Wescott wrote:
>>>>> On Wed, 17 May 2017 09:12:46 -0400, Randy Yates wrote:
>>>>>
>>>>>> Tim Wescott <seemywebsite@myfooter.really> writes:
>>>>>>
>>>>>>> Since this is a newsgroup, and this is news...
>>>>>>>
>>>>>>> Wescott Design Services is going into remission, while I pursue a
>>>>>>> day job.  Job title is Software Designer 5 at Planar Systems -- so
>>>>>>> any circuit design or control systems jones will have to be
>>>>>>> satisfied by hobby work or on the side.
>>>>>>>
>>>>>>> In the near term I'll be finishing up current work with current
>>>>>>> customers; in the longer term I'll probably concentrate on the
>>>>>>> educational videos and maybe hobby stuff.
>>>>>>>
>>>>>>> Lots of embedded Linux work in my near future, and possibly TDD
>>>>>>> proselytizing.
>>>>>>
>>>>>> Congratulations Tim. We'll have to exchange trade secrets someday...
>>>>>>
>>>>>> BTW, does PS use a specific unit test framework? Have you used it
>>>>>> yet?
>>>>>> How do you like it?
>>>>>
>>>>> I start next week, so I don't know and no.  It's my former coworker
>>>>> from FLIR who's pushing TDD, and the manager who hired me is kind of
>>>>> warily standing on the sidelines going "what's the deal here?"
>>>>>
>>>>> The guy pushing it is extremely smart and capable, so whatever it is
>>>>> it's probably good.
>>>>
>>>> I expect you'll find it is the codification of many of the development
>>>> mentality and practices that you have been using for a long time.
>>>>
>>>> Be cautious about how TDD applies to bottom-up design (i.e. finding
>>>> things that work and clagging them together) v.s. top-down design. TDD
>>>> works naturally with top-down design where all the
>>>> yet-to-be-implemented are well understood and feasible.
>>>>
>>>> Anybody that /thinks/ will realise that sometimes it is beneficial to
>>>> do a "spike investigation" to quickly validate key concepts from
>>>> top-to-bottom, and then to use that experience to do it "properly"
>>>> using full-blown TDD.
>>>
>>> It's not magic.  I've been geeking out on the COSMAC 1802 lately,
>>> because it was the first microprocessor I ever owned (I had an ELF-II
>>> kit).  The user's manual has an entire chapter extolling the virtue of
>>> SUBROUTINES (ooh, ahh) and how to implement them.  It's quite gushy
>>> about how using subroutines make your code better.  And yet, I've
>>> worked on lots of crappy code that has subroutines.
>>
>> :)
>>
>> The 1802's implementation of subroutines was, um, quirky to the point of
>> being obtuse.
>>
>> I hand built my first computer using a 6800, after having thought long
>> and hard about the 1802 and 8080. It was a mess,
>> but worked, I learned a heck of a lot, and prospective employers were
>> duly impressed.
>
> The 1802 is neither a CISC processor nor a RISC processor -- it's a NHISC
> processor -- "Never Had Instruction Set Computer".

:)

> I wish I had the chops to organize a contest -- I think an annual "build
> the fastest 1802" contest would be fun to be involved in.  Imagine what
> you could do if the only basic rule was that it had to execute 1802
> machine code faithfully, with no constraints on how much happened per
> clock cycle.  Ditch TDA and TDB, keep the I/O command lines, Q, and the
> flags, and go to town.  Prefetch, pipelines, caches, parallel execution,
> predictive branching, everything -- all with that crazy 1802 instruction
> set.

I hate all those with a vengeance, since they prevent hard
real-time software.

I'm currently experimenting with a /small/ XMOS device which
deliberately avoids all of those techniques so that it can
guarantee timing. So far I've been able to get the /software/
to reliably count the edges on two 20Mb/s input pins,
process the results and simultaneously shove them up a USB
link to a host PC.

Now I've got to understand the algorithms in reciprocal and
continuous timestamping frequency counters :)

Thread

[OT] I got a JOB!!! Tim Wescott <seemywebsite@myfooter.really> - 2017-05-16 13:49 -0500
  Re: [OT] I got a JOB!!! George Herold <gherold@teachspin.com> - 2017-05-16 11:55 -0700
    Re: [OT] I got a JOB!!! Tim Wescott <tim@seemywebsite.really> - 2017-05-16 15:13 -0500
      Re: [OT] I got a JOB!!! Tim Wescott <seemywebsite@myfooter.really> - 2017-05-16 17:18 -0500
  Re: [OT] I got a JOB!!! Steve Wilson <no@spam.com> - 2017-05-16 19:04 +0000
  Re: [OT] I got a JOB!!! Don Y <blockedofcourse@foo.invalid> - 2017-05-16 12:14 -0700
    Re: [OT] I got a JOB!!! Tim Wescott <tim@seemywebsite.really> - 2017-05-16 14:41 -0500
      Re: [OT] I got a JOB!!! Don Y <blockedofcourse@foo.invalid> - 2017-05-16 14:01 -0700
        Re: [OT] I got a JOB!!! mike <ham789@netzero.net> - 2017-05-16 14:42 -0700
        Re: [OT] I got a JOB!!! Tim Wescott <seemywebsite@myfooter.really> - 2017-05-16 17:09 -0500
          Re: [OT] I got a JOB!!! Don Y <blockedofcourse@foo.invalid> - 2017-05-16 16:42 -0700
        Re: [OT] I got a JOB!!! Clifford Heath <clifford.heath@gmail.com> - 2017-05-17 09:00 +1000
    Re: [OT] I got a JOB!!! tabbypurr@gmail.com - 2017-05-16 13:40 -0700
  [OT] I got a JOB!!! bulegoge@columbus.rr.com - 2017-05-16 12:27 -0700
  Re: [OT] I got a JOB!!! eric.jacobsen@ieee.org - 2017-05-16 20:17 +0000
    Re: [OT] I got a JOB!!! Tim Wescott <tim@seemywebsite.really> - 2017-05-16 15:24 -0500
      Re: [OT] I got a JOB!!! Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-05-16 22:05 +0100
        Re: [OT] I got a JOB!!! Tim Wescott <seemywebsite@myfooter.really> - 2017-05-16 17:11 -0500
          Re: [OT] I got a JOB!!! Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-05-16 23:51 +0100
            Re: [OT] I got a JOB!!! Tim Wescott <seemywebsite@myfooter.really> - 2017-05-16 18:32 -0500
              Re: [OT] I got a JOB!!! Clifford Heath <clifford.heath@gmail.com> - 2017-05-17 09:41 +1000
                Re: [OT] I got a JOB!!! Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-05-17 09:35 +0100
                Re: [OT] I got a JOB!!! Clifford Heath <no.spam@please.net> - 2017-05-17 19:03 +1000
                Re: [OT] I got a JOB!!! Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-05-17 10:31 +0100
                Re: [OT] I got a JOB!!! Clifford Heath <no.spam@please.net> - 2017-05-17 23:07 +1000
              Re: [OT] I got a JOB!!! Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-05-17 09:41 +0100
                Re: [OT] I got a JOB!!! Paul <paul@pcserviceselectronics.co.uk> - 2017-05-17 10:10 +0100
                Re: [OT] I got a JOB!!! Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-05-17 10:34 +0100
                Re: [OT] I got a JOB!!! Paul <paul@pcserviceselectronics.co.uk> - 2017-05-17 15:59 +0100
                Re: [OT] I got a JOB!!! Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-05-17 18:04 +0100
              Re: [OT] I got a JOB!!! Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-05-17 18:02 +0100
            Re: [OT] I got a JOB!!! Don Y <blockedofcourse@foo.invalid> - 2017-05-16 17:56 -0700
              Re: [OT] I got a JOB!!! Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-05-17 09:42 +0100
                Re: [OT] I got a JOB!!! Reinhardt Behm <rbehm@hushmail.com> - 2017-05-17 16:57 +0800
  Re: [OT] I got a JOB!!! "billbowden" <bperryb@bowdenshobbycircuits.info> - 2017-05-16 15:04 -0700
    Re: [OT] I got a JOB!!! Don Y <blockedofcourse@foo.invalid> - 2017-05-16 15:30 -0700
      Re: [OT] I got a JOB!!! "billbowden" <bperryb@bowdenshobbycircuits.info> - 2017-05-18 16:00 -0700
        Re: [OT] I got a JOB!!! Don Y <blockedofcourse@foo.invalid> - 2017-05-18 16:18 -0700
        Re: [OT] I got a JOB!!! Tim Wescott <seemywebsite@myfooter.really> - 2017-05-18 19:14 -0500
          Re: [OT] I got a JOB!!! "billbowden" <bperryb@bowdenshobbycircuits.info> - 2017-05-18 21:40 -0700
  Re: [OT] I got a JOB!!! Martin Riddle <martin_ridd@verizon.net> - 2017-05-16 20:02 -0400
  Re: [OT] I got a JOB!!! krw@notreal.com - 2017-05-16 20:40 -0400
  Re: [OT] I got a JOB!!! Randy Yates <randyy@garnerundergroundinc.com> - 2017-05-17 09:12 -0400
    Re: [OT] I got a JOB!!! Tim Wescott <tim@seemywebsite.really> - 2017-05-17 10:02 -0500
      Re: [OT] I got a JOB!!! Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-05-17 18:11 +0100
        Re: [OT] I got a JOB!!! Tim Wescott <seemywebsite@myfooter.really> - 2017-05-17 12:21 -0500
          Re: [OT] I got a JOB!!! Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-05-17 18:36 +0100
            Re: [OT] I got a JOB!!! Tim Wescott <seemywebsite@myfooter.really> - 2017-05-17 12:43 -0500
              Re: [OT] I got a JOB!!! Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-05-17 18:55 +0100
                Re: [OT] I got a JOB!!! Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-05-17 18:57 +0100
                Re: [OT] I got a JOB!!! Tim Wescott <seemywebsite@myfooter.really> - 2017-05-17 13:28 -0500
                Re: [OT] I got a JOB!!! Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-05-17 20:08 +0100
  Re: [OT] I got a JOB!!! boB K7IQ <boB@everett.wa> - 2017-05-17 21:30 -0700
    Re: [OT] I got a JOB!!! Tim Wescott <tim@seemywebsite.really> - 2017-05-18 00:03 -0500
    Re: [OT] I got a JOB!!! Tom Gardner <spamjunk@blueyonder.co.uk> - 2017-05-18 08:18 +0100
      Re: [OT] I got a JOB!!! boB K7IQ <boB@everett.wa> - 2017-05-18 22:56 -0700
        Re: [OT] I got a JOB!!! Vassilis Spiliopoulos <vassilis@vask1lux.de> - 2017-05-19 14:31 +0300
          Re: [OT] I got a JOB!!! Tim Wescott <tim@seemywebsite.really> - 2017-05-19 10:39 -0500
            Re: [OT] I got a JOB!!! Vassilis Spiliopoulos <vassilis@vask1lux.de> - 2017-05-19 23:02 +0300
              Re: [OT] I got a JOB!!! Don Y <blockedofcourse@foo.invalid> - 2017-05-19 13:12 -0700
                Re: [OT] I got a JOB!!! dplatt@coop.radagast.org (Dave Platt) - 2017-05-19 15:00 -0700
                Re: [OT] I got a JOB!!! Don Y <blockedofcourse@foo.invalid> - 2017-05-19 16:05 -0700
              Re: [OT] I got a JOB!!! boB K7IQ <boB@everett.wa> - 2017-05-21 01:46 -0700
                Re: [OT] I got a JOB!!! Vassilis Spiliopoulos <vassilis@vask1lux.de> - 2017-05-21 17:31 +0300
                Re: [OT] I got a JOB!!! John S <Sophi.2@invalid.org> - 2017-05-21 13:31 -0500
                Re: [OT] I got a JOB!!! krw@notreal.com - 2017-05-21 16:47 -0400

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