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MOBI
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Joined: 02/12/2012
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Posted: 11:43pm 12 Feb 2014

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Geoff said Is the problem copying PC ---> Micromite or PC <---- Micromite?

In my case, I selected xmodem receive on the uMite and <file> send on the pc.

I have tried a new uMite chip and every thing is fine. Maybe there was a hiccup in windows and may be it was a big coincidence in both our cases. Maybe we just let it go and wait and see if it crops up again. It might be a non-existent needle in a haystack.

David M.

JohnL
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Joined: 10/01/2014
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Posted: 11:56pm 12 Feb 2014

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David,

Not suggesting anything, but any chance that you may have accidentally clicked on Receive instead of Send in Tera Term ? I have done it a few times in the beginning.

If I read carefully what atmega8 reported, I think it can be recreated by clicking Receive instead of Send in Tera Term.

I could also be wrong, if it is an issue it will surely come up somewhere else.

Geoffg

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Joined: 06/06/2011
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Posted: 12:29am 13 Feb 2014

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JohnL said You may have confused Receive and Send.
...
Geoff, I recon that was the problem?

That sounds very much like it. OK, wait and see...

Geoff

Geoff Graham - http://geoffg.net

atmega8

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Joined: 19/11/2013
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Posted: 12:47am 13 Feb 2014

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I'll check it again tonight....

Started it on the mmite with F11.

May be it was to early in the morning?!

Geoffg

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Posted: 02:14am 13 Feb 2014

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TZAdvantage said Is there a reason why not all five internal OC peripherals can be used?

That sounds like a great idea and should be doable. Let me have a play and I will report back,

Geoff

Geoff Graham - http://geoffg.net

viscomjim
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Joined: 08/01/2014
Location: United States
Posts: 925

Posted: 03:20am 13 Feb 2014

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Just when I thought it couldn't get any better... Geoff, you have outdone yourself, again! Can't wait to get home and mess with this. I hope I'm not headed for a divorce. I will report back on the display and keyboard drivers as that is what I am currently playing with. Can't wait for the protoboards to start showing up.
THANKS GEOFF!!!!

plasma
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Joined: 08/04/2012
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Posted: 07:16am 13 Feb 2014

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Thx Geoff !

viscomjim
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Posted: 07:26am 13 Feb 2014

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Hi All,

On the lcd driver, I am currently using the open collector outputs for the 6 wires going to the lcd with 10k pullups to 5volts. Is it still necessary to only use pins that are capable of open collector or can we use any digital i/o pins for this. Same applies to matrix keyboard, are any pull up or pull downs necessary?

Thanks Again.

palcal

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Joined: 12/10/2011
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Posted: 11:42am 13 Feb 2014

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Jim, according to the manual any pins can be used and no pull ups required.
How good is that.
Paul

"It is better to be ignorant and ask a stupid question than to be plain Stupid and not ask at all"

Geoffg

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Posted: 12:03pm 13 Feb 2014

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During testing I found that all the LCDs I could lay my hands on accepted TTL input levels (which is what the Micromite puts out). So you can use any I/O pins and pullups are not needed.

Same for the keypad. In this case the firmware enables internal pullups on the rows (r1 to r4) so again, no external resistors are required.

Geoff

Geoff Graham - http://geoffg.net

atmega8

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Posted: 12:33pm 13 Feb 2014

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So sorry Geoff,

i'am the bug, mixed receive and send ;-((
Sorry XMODEN works perfect!!!!!

DS18B20 works, perfect, IR works perfect.
At weekend i will test several LCD Display's.

Dietmar

Geoffg said

atmega8 said XMODEM !

When trying to downloda via Xmodem, the transfer stucks.

After stopping , the content of the downloadfile was wiped out.

Tried it several times, same effect.

Used Treraterm with 38400.

That cannot be right, most of my testing was done using XModem to transfer files.

I will recheck but I am baffled.

Geoff

atmega8

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Posted: 01:42pm 13 Feb 2014

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Interrupt Handling

Hello to all,

how will Interrupts be handled, if you use a function as the new DS18B20 read, that takes about 200ms to complete?

Grogster

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Joined: 31/12/2012
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Posted: 01:43pm 13 Feb 2014

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atmega8 said i'am the bug, mixed receive and send ;-((

You are not the first!

Smoke makes things work. When the smoke gets out, it stops!

Geoffg

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Posted: 06:54pm 13 Feb 2014

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atmega8 said how will Interrupts be handled, if you use a function as the new DS18B20 read, that takes about 200ms to complete?

The interrupts will only be checked after the 200mS (which means that you can loose some high speed interrupts).

GeoffEdited by Geoffg 2014-02-15

Geoff Graham - http://geoffg.net

SteveP
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Joined: 21/03/2013
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Posted: 06:58pm 13 Feb 2014

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Geoffg said

TZAdvantage said Is there a reason why not all five internal OC peripherals can be used?

That sounds like a great idea and should be doable. Let me have a play and I will report back,

Geoff

If more PWM outputs are added, could they be made PWM with adjustable frequency and duty cycle like the two existing PWM pins rather than only servo outputs with fixed 20 msec period ? I would like to use them to generate multiple analog output voltages using an R/C filter.
ThanksEdited by SteveP 2014-02-15

Geoffg

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Posted: 07:10pm 13 Feb 2014

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I have just finished updating the PWM/SERVO code (it will be in the next beta).

You will have a total of five PWM/SERVO outputs in two groups. Group one will have up to three outputs all at the same frequency but with different duty cycles. Group two will have two outputs with a different frequency to group one.

Sorry about the frequency restriction but there are only two timers that can be used for this purpose and that restricts us to just two different frequencies.

Geoff

Geoff Graham - http://geoffg.net

Grogster

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Posted: 09:40pm 13 Feb 2014

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So, you found an extra couple of bytes of memory to squeeze that extra functionality in then, eh Geoff? (rhetorical)

Smoke makes things work. When the smoke gets out, it stops!

Geoffg

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Posted: 10:04pm 13 Feb 2014

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It was amazing how much space the 1-wire search function took up. Eliminating that reduced the space occupied by the overall 1-wire protocol by 75%.

It is strange going back to counting bytes. It recalls the days of the 8080 and Z80. I suppose that I got to used to the larger PIC32's with their almost unlimited amount of flash.

I have also been working on the PIC32MZ and it is at the opposite end of the spectrum... 2MB of flash. Just enormous - the technology keeps rolling on...

Geoff

Geoff Graham - http://geoffg.net

WhiteWizzard
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Joined: 05/04/2013
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Posted: 10:18pm 13 Feb 2014

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Hi Geoff,

Something I'm sure we would all be interested in knowing: what is your current 'guesstimate' as to when you reckon you will need PIC32MZ beta testers?

Loving Beta 6 by the way . . . .

Regards,

Phil

Grogster

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Posted: 10:49pm 13 Feb 2014

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Geoffg said It was amazing how much space the 1-wire search function took up. Eliminating that reduced the space occupied by the overall 1-wire protocol by 75%.

...WOW...

Well worth dumping the search then.

Geoffg said I have also been working on the PIC32MZ and it is at the opposite end of the spectrum... 2MB of flash. Just enormous - the technology keeps rolling on...

Geoff

Is this the chip you are planning to develop the next generation Maximite on?
I think it is - I will have to hunt through the threads - I seem to remember you posting a thread about Microchip releasing that chip....

Smoke makes things work. When the smoke gets out, it stops!

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