TheBackShed.com

Forum Index : Microcontroller and PC projects : Just Curious - MMBasic 3.1 for DuinomiteM

Author

Message

DuinoMiteMegaAn
Senior Member

Joined: 17/11/2011
Location: Australia
Posts: 231

Posted: 02:08am 05 Apr 2012

Copy link to clipboard

Print this post

Just Curious - MMBasic 3.1 for DuinomiteMega

@Geoffg

Com2: on D2 Rx (13) & D3 Tx (14) works.

Com1: on D4 Rx (15) & D5 Tx (16) does not work?

I used Open/Close comspec as Console several times, for a serial port quick check,
and only Com2 works. It seems Com1 doesn't work in MMBasic 3.1 or my port is fried?

Has anyone else got their Com1 port working on their DuinomiteMega using MMBasic 3.1?Edited by DuinoMiteMegaAn 2012-04-06

Geoffg

Guru

Joined: 06/06/2011
Location: Australia
Posts: 3194

Posted: 04:40am 05 Apr 2012

Copy link to clipboard

Print this post

I am sure that I tested COM1: when I originally released ver 3.1 and it worked OK then.

At this time I am working on ver 3.2 and COM1: definitely works in that version (I have just tested it). It might be better to wait for 3.2 anyway as that also supports the hardware UARTs giving four serial ports in total (on the DuinoMite).

Version 3.2 should be out in a couple of weeks.

GeoffEdited by Geoffg 2012-04-06

Geoff Graham - http://geoffg.net

DuinoMiteMegaAn
Senior Member

Joined: 17/11/2011
Location: Australia
Posts: 231

Posted: 01:10pm 06 Apr 2012

Copy link to clipboard

Print this post

Also, Should printing to a serial port(#nbr) echo on the video display?

Open "Com2:9600,256" AS #5
Print #5, "comtest"

Geoffg

Guru

Joined: 06/06/2011
Location: Australia
Posts: 3194

Posted: 01:25pm 06 Apr 2012

Copy link to clipboard

Print this post

Yes, that is the correct behaviour.
You can use OPTION VIDEO OFF to disable it.

Geoff

Geoff Graham - http://geoffg.net

vk4tec

Senior Member

Joined: 24/03/2012
Location: Australia
Posts: 239

Posted: 02:02pm 06 Apr 2012

Copy link to clipboard

Print this post

I am confused more than normal

Why would opening COM2 echo to VGA ?

Is it the AS CONSOLE that is doing it ?

Andrew

Andrew Rich VK4TEC
www.tech-software.net

DuinoMiteMegaAn
Senior Member

Joined: 17/11/2011
Location: Australia
Posts: 231

Posted: 04:52pm 06 Apr 2012

Copy link to clipboard

Print this post

Why would opening COM2 echo to VGA ?

I think you meant
Why would printing [? #5, "test"] to an opened serial port echo to VGA ?

In my application, I opened a serial port to transmit chars by using a ? (print) and MMBasic echoed the chars back on the VGA video. I would have think that a print command with a serial port file nmbr would not do this but it does.

Edited by DuinoMiteMegaAn 2012-04-08

Geoffg

Guru

Joined: 06/06/2011
Location: Australia
Posts: 3194

Posted: 11:03pm 06 Apr 2012

Copy link to clipboard

Print this post

Sorry, I am the one who is confusing everyone because I misread the post.

If you open a port normally like: OPEN "COM1" AS #3
Then: PRINT #3, "hello"
Will only be sent out on COM1, it will not appear on the VGA or USB.

If you open a port like this: OPEN "COM1" AS CONSOLE
Then: PRINT "hello"
Will be sent out on the VGA, USB and COM1:

In the latter case you can use OPTION VIDEO OFF to disable echo to the VGA and OPTION USB OFF to disable echo to the USB (both only while the program is running).

Geoff

Geoff Graham - http://geoffg.net

DuinoMiteMegaAn
Senior Member

Joined: 17/11/2011
Location: Australia
Posts: 231

Posted: 11:46pm 06 Apr 2012

Copy link to clipboard

Print this post

Whew ... I checked my application again and found that a microcontroller
with built-in Python "the snake" was echoing command characters back through the serial port.

Print this page

To reply to this topic, you need to log in.