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Forum Index : Microcontroller and PC projects : MMBasic 4.4 Beta 5

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Geoffg

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Joined: 06/06/2011
Location: Australia
Posts: 3194
Posted: 09:24pm 16 Jun 2013
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Hi everyone,

This should be the last of the beta test versions.
It can be downloaded from: http://geoffg.net/Downloads/Maximite/MMBasic_4.4_Beta_5.zip

It contains:
- The MODULE command
- Random File I/O
- The LENGTH keyword for string arrays
- The WATCHDOG command in its final form ** UPDATED **
- The ON KEY interrupt (command) ** NEW **
- SETTICK supports up to four timers ** NEW **
- The SPRITE COPY s1 TO s2 command ** NEW **
- Option for two stop bits on the serial Tx
- PWM output now has a resolution of 0.1% or better ** NEW **

If there are no bugs found over the next week or two I will turn it into the official V4.4 release. Please feel free to give this beta a run and let me know if you find anything wrong.

Geoff
Geoff Graham - http://geoffg.net
 
OA47

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Joined: 11/04/2012
Location: Australia
Posts: 926
Posted: 09:58pm 16 Jun 2013
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Amazing work Geoff.
 
ajkw
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Joined: 29/06/2011
Location: Australia
Posts: 290
Posted: 11:28pm 16 Jun 2013
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Hi Geoff,
Thanks for this latest Beta.

The SOUND command when executed is returning the appropriate sound/beep along with the text

period = {hex value} dc = {hex value}


Anthony.
 
Geoffg

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Joined: 06/06/2011
Location: Australia
Posts: 3194
Posted: 01:44am 17 Jun 2013
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Ah damn, I left some debugging code in.
Thanks for the info.
Geoff Graham - http://geoffg.net
 
paceman
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Joined: 07/10/2011
Location: Australia
Posts: 1329
Posted: 03:41am 17 Jun 2013
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Holey Moley Geoff, I'm amazed you can do this stuff so fast. That's tremendous. I'll set up my servo again tomorrow and see how it goes with the PWM fix. The four SETTICKs will be great but I'm going to have to do something real to try it out - that'll take me longer than it has you for the lot!
Greg


 
StoveMan
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Joined: 29/03/2013
Location: United States
Posts: 51
Posted: 04:34am 17 Jun 2013
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Geoff,
PWM OFF = HiZ: Got it! I wonder why I didn't try a pull down...Simple.
Any ideas on this so's a cheap backup camera screen can be used with CMM?
Mono MM works flawlessly with Composite video out; but I assume any new hardware will tend toward color?
Thanks as always,
Frank

  Quote   There is currently a fault when displaying composite with the Colour Maximite - it shows up as an offset of the display to the right. Geoff has already said he will be looking into it after his return from the USA in about three weeks. Don't forget to use the CONFIG COMPOSITE PAL (or NTSC) command - see below.

paceman wrote:
Geoffg wrote:
Has anyone had composite video working on the Colour Maximite or clones without this shift?
I tested it OK in the early days but something might have broken with subsequent firmware versions. I am overseas at this time so it will be a little over a month before I can test the current version.
Geoff

I can't get my CGCOLORMAX1 to output composite correctly either - it's unreadable and is shifted halfway across the screen.
Is there something else that needs doing, besides making up the cable, to get composite on the CGCOLORMAX1? Greg


paceman wrote:
Geoffg wrote:
The only other thing is to turn on the composite with CONFIG COMPOSITE PAL but there seems to be a bug there which I need to chase down.
Geoff
Thanks Geoff - the CONFIG COMPOSITE PAL has fixed the "unreadable" part of my problem.
Greg



 
paceman
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Location: Australia
Posts: 1329
Posted: 05:02am 17 Jun 2013
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  StoveMan said   Geoff,
PWM OFF = HiZ: Got it! I wonder why I didn't try a pull down...Simple.
Any ideas on this so's a cheap backup camera screen can be used with CMM?

Frank, I've got a small $25 composite car colour back-up screen running on the Colour Maximite (actually the CGCMM). It uses a small $12 VGA-comp converter like this:








You'd think the connectors would all have to be worth more than $12 let alone the electronics. If some clever person could figure how to get just the two main chips on a little BOB to sit on/in the CMM then the cheap composite back-up screens could be used for embedded projects.

The two big chips are a special 128 pin converter "VXiS VX1937 1217-22145440" and a 50 pin 1Mbit ram "Hynix 605B HY57V161610ETP-7". It uses mini USB and has an AMS 1117 3.3v p/s, a 74HC04 D chip and a 27MHz xtal.

Greg
Edited by paceman 2013-06-18
 
StoveMan
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Joined: 29/03/2013
Location: United States
Posts: 51
Posted: 05:06am 17 Jun 2013
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Paceman,
Yeah I have the same one. The color correction and offsets have to be keyed in manually EVERY time the interlacer is powered up though; which precludes using it in and end product.
Unless you found an elegant way to use it?
Frank
 
paceman
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Joined: 07/10/2011
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Posts: 1329
Posted: 05:12am 17 Jun 2013
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No, I'm afraid not and for one-off jobs like most of us do you may as well get a $70 slightly bigger VGA. Actually I think Mick found a 5" (?) VGA recently for around $55.
 
robert.rozee
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Joined: 31/12/2012
Location: New Zealand
Posts: 2350
Posted: 05:26am 17 Jun 2013
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i just purchased one of these for us$50 delivered:

http://www.ebay.com/itm/181159572503
(HDMI/VGA/2AV+Reversing Driver board + 7inch AT070TN90 800*480 lcd display)

which raises the question, could the maximite drive a dvi/hdmi? not at the full resolutions supported, just the ones that the maximite currently uses.Edited by robert.rozee 2013-06-18
 
MicroBlocks

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Joined: 12/05/2012
Location: Thailand
Posts: 2209
Posted: 07:12am 17 Jun 2013
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If it is a DVI-A or DVI-I then it has analog pins that can be used with a VGA signal
Microblocks. Build with logic.
 
Geoffg

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Joined: 06/06/2011
Location: Australia
Posts: 3194
Posted: 11:25am 17 Jun 2013
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I forgot that there was a bug listed regarding the composite output on the CMM. I will check it out... maybe there will be another beta version.

EDIT... I have found the bug, it will be fixed in the final release.

GeoffEdited by Geoffg 2013-06-19
Geoff Graham - http://geoffg.net
 
MicroBlocks

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Joined: 12/05/2012
Location: Thailand
Posts: 2209
Posted: 07:52pm 18 Jun 2013
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What about adding this: 16 colors16 colors and then specifically the extra video mode Nick mentioned.
It would be a small hardware modification (Great for getting to solder again for many i think). I think it will be useful and very popular.
Microblocks. Build with logic.
 
paceman
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Joined: 07/10/2011
Location: Australia
Posts: 1329
Posted: 04:43am 19 Jun 2013
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  Geoffg said   Ah damn, I left some debugging code in.
Thanks for the info.
Hi Geoff,
Just been trying the PWM command and the same sort of debugging code seems to be in there.
Greg
 
cwilt
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Joined: 20/03/2012
Location: United States
Posts: 147
Posted: 07:32am 21 Jun 2013
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I have a question and possible request. When opening a serial port the documentation says that I can have an interrupt call a label or line number when the read buffer has a set number of bytes. Is it possible to call a user subroutine or function? If not now would it be possible to add it?

I am writing a driver which uses the new module load and unload function and works with serial port data. It would be nice if I could call a sub or function in that module to handle incoming serial data instead of the old school label or line number.
 
MicroBlocks

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Joined: 12/05/2012
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Posted: 08:50am 21 Jun 2013
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@cwilt, that is actually a neat idea.

A serial port interrupt could then actually offer the data in a parameter.
You could then write a routine like this:
[code]
SUB OnData(value$)
'Value$ would then contain the data from the serial port buffer.
END SUB
[/code]
This would simplify and speed up processing and handling of the interrupt
Microblocks. Build with logic.
 
Dylan
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Joined: 17/06/2013
Location: Netherlands
Posts: 81
Posted: 10:46am 21 Jun 2013
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Has something similar to this been considered?
 
BobD

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Joined: 07/12/2011
Location: Australia
Posts: 935
Posted: 12:07pm 21 Jun 2013
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  Dylan said   Has something similar to this been considered?

I believe it has and was negatived because PIC32 code was too complex IIRC.
 
Geoffg

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Posted: 12:10pm 21 Jun 2013
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This is great, thanks for the ideas everyone.

  TZAdvantage said   What about adding this: 16 colors16 colors and then specifically the extra video mode Nick mentioned.

The problem is that there is not a clean way of doing this without consuming more memory. I have looked at 16 colours the past and given up on it.


  cwilt said  When opening a serial port the documentation says that I can have an interrupt call a label or line number when the read buffer has a set number of bytes. Is it possible to call a user subroutine or function? If not now would it be possible to add it?

At this time, you cannot specify a subroutine but you have a good point... why not? Thanks for the idea, I will have a look at it. It cannot be too hard and TZ's idea of a parameter would be perfect.


  Dylan said   Has something similar to this been considered?

Yes it has and the best that I can do is point you to the Maximite FAQ where this question has been answered (http://geoffg.net/MaximiteFAQ.html).

Geoff
Geoff Graham - http://geoffg.net
 
cwilt
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Joined: 20/03/2012
Location: United States
Posts: 147
Posted: 03:20pm 21 Jun 2013
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  TZAdvantage said   @cwilt, that is actually a neat idea.

A serial port interrupt could then actually offer the data in a parameter.
You could then write a routine like this:
[code]
SUB OnData(value$)
'Value$ would then contain the data from the serial port buffer.
END SUB
[/code]
This would simplify and speed up processing and handling of the interrupt


Thats what I was thinking.

Another trick would be if the interrupt triggered by a character too. For example, if the trigger was the CR or LF character then you would capture 1 line at a time.

I would be happy with just being able to use a sub or function call.
 
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