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MicroBlocks

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Joined: 12/05/2012
Location: Thailand
Posts: 2209

Posted: 11:48pm 29 Apr 2014

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That update seems to work.
I could not get any of my MicroMites to fail.
Maybe other can try it and confirm.
I redid the tests i described in my posts.

Bug squashed! :)

Microblocks. Build with logic.

WhiteWizzard
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Joined: 05/04/2013
Location: United Kingdom
Posts: 2817

Posted: 11:53pm 29 Apr 2014

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I am going out the door now (10:55am UK). Won't be back till this evening.

I will do these tests later and let you know how it goes - sounds like with Geoff's fix, and with a cap on the +v line, then probably is fixed.

Speak this evening . . . .

For everything Micromite visit micromite.org

Direct Email: whitewizzard@micromite.o

MicroBlocks

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Joined: 12/05/2012
Location: Thailand
Posts: 2209

Posted: 07:28pm 30 Apr 2014

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I did some more testing and found that the capacitor on pin 19 and 20 when not securely fixed (like when used in a breadboard) adds to the problem. I soldered a few directly on the chips and the 'reset' problem on the 4.5 firmware was a lot less, but still occurred.

With the 4.5c update i get no failures at all in the tests i did. And i really tried by having bad contacts on purpose and connecting power and wires in the wrong order.

Microblocks. Build with logic.

Geoffg

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Joined: 06/06/2011
Location: Australia
Posts: 3196

Posted: 12:11am 01 May 2014

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Thanks TZ. I think that we can say that it is fixed.

I did not want to do this but I think that I will have to put out a new release (4.5C) as this is a serious bug. We don't want users bricking their pre programmed Micromites just because they used a cheap USB-serial adapter.

Geoff

Geoff Graham - http://geoffg.net

robert.rozee
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Joined: 31/12/2012
Location: New Zealand
Posts: 2350

Posted: 12:41am 01 May 2014

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I had assumed that the check consisted of the MicroMite seeing the startup message echoed back identically on the Rx input, rather than just seeing a logic level or just series of pulses.

Does 4.5C fix the random number bug too?

cheers,
rob :-)

WhiteWizzard
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Joined: 05/04/2013
Location: United Kingdom
Posts: 2817

Posted: 02:22am 01 May 2014

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Geoff,

Please; do you have a 44-pin version you can make available so that I can test quickly?

I have also tested 28-pin v4.5C and no additional problems to report.

Just out of interest this has fixed the issue I sent to you by email on 1st/2nd March re MicroMite - Console 'lockout'‏.

Phil

For everything Micromite visit micromite.org

Direct Email: whitewizzard@micromite.o

Geoffg

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Joined: 06/06/2011
Location: Australia
Posts: 3196

Posted: 03:32am 01 May 2014

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Thanks for the test report Phil. There should not be any difference with the 44-pin version but it is attached if you want to try it. 2014-05-01_132514_Micromite_V4.5C_Beta_1_44-pin.zip

Yes, it could easily fix your "console lockout" issue. I was never able to reproduce your issue but now, with hindsight, I realise that I must have USB-serial adapters that are well behaved.

Give me a day or two to do the full test sequence on V4.5C and then I will post it.

Rob: Yes, it fixes all the bugs listed in http://geoffg.net/Downloads/Micromite/Current_Bug_List.txt

Geoff

Geoff Graham - http://geoffg.net

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