RS232 Librarie - MVCOM

Marc · Post by **Marc** » Fri Jul 09, 2004 2:09 pm

RS 232 MVCOM Library has been updated:

1: Compatible with PB 3.91 new linker
2: New function to set Xon and Xoff characters
3: New function to set Txd in break state

To download: http://perso.wanadoo.fr/marc.vitry

chio · Post by **chio** » Fri Jul 09, 2004 2:17 pm

Can you please help me.

I am trying to attach my Uniden Scanner which works through the RS232 fine with its onw software but I can't get a thing with the test scripts.

Anything I should do differently. I am a total novice and intrigued by this.

Thanks,

Marc · Post by **Marc** » Fri Jul 09, 2004 3:35 pm

Your Uniden Scanner has certainly Communication Specifications that not implemented in the test software.

You have to chek the communication specification and write a new software with MVCOM Library.

Test software was only designed to show how to use MVCOM (With a loop connector on the serial port)

Regards.

Klonk · Post by **Klonk** » Tue Jul 13, 2004 7:03 pm

Marc,
really nice library. Just for your wishlist (just in case you don't have one

):
- Possibility of higher speeds (at least 115200 or even more, some serial ports are capable of higher speeds)
- Possibility to change the speed while the port is open (or is it possible by calling openport several times)
- Possibility to set the address and IRQ of the desired port

I would like to use your library for a small terminal program.
I hope you do not use the windows APIs for that. I found a very strange behaviour beginning with WinME and Win2000 (haven't tested on others) when I used Hyperterminal: sending a file (around 500k) as ASCII with no flow control and a speed of 57600 took about 15 minutes which was far too long (effective speed somewhere around 8000bps).
I assume there is some driver layer in between at the newer windows versions.
I used Teraterm as an alternative which worked OK, but is rather old and well I thought this would be a good project, which I could also use in the office.
Main usage why this is important: We have several pieces of hardware whose flash could be updated by serial transmission (without flow control).
And because of the described problem I had several days of hard work at the customers site till I found the reason and got another terminalsoftware.

thefool · Post by **thefool** » Tue Jul 13, 2004 7:31 pm

thx Marc

chio · Post by **chio** » Tue Jul 13, 2004 10:29 pm

My issue was simple, I had to add Chr(13) to make the <CR> for each line sent. Otherwise the scanner would not respond.

Code: Select all

Chaine.s = "LCD"+Chr(13)

By the way is working great. Will send you a copy when finished.

Thanks,

TronDoc · Post by **TronDoc** » Thu Jul 15, 2004 11:03 pm

Marc wrote:To download: http://perso.wanadoo.fr/marc.vitry

dead link

chio · Post by **chio** » Fri Jul 16, 2004 12:45 am

works fine here

then click on PureBasic

TronDoc · Post by **TronDoc** » Fri Jul 16, 2004 3:34 am

it is working now here too

Psychophanta · Post by **Psychophanta** » Sun Jul 18, 2004 2:40 pm

Nice work, Marc

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RS232 Librarie - MVCOM

RS232 Librarie - MVCOM

Excellent thanks

CHR(13)

Re: RS232 Librarie - MVCOM