Hi
> Hi,
>
>> Maybe the last number is a kind of CRC? In that case, it is only
>> needed to verify the number that is read, it is not really a part of
>> the barcode information.
>
> The last barcode number is a control digit, but, if is missing you
> must verify if the 'scanner' configuration is right because don't
Scanner configuration? I doubt if it has any software inside or can be
configured in any way? Has someone any info on that (configuration of
NMS-1170 Bar Code Reader) ? As far I know there is no built-in rom with
software inside. It can be used by reading diectly the ports.
> exist ONE barcode standard exist a lot (EAN-13, EAN-8, UPC, small
> UPC, 25, 39, etc...). In my graduation project I (my group) made a
> supermarket's system, then I learn much about barcodes. I had a small
> book about it but I can't plunder it from library. :)
>
> Commomlly, the hardware checks the control digit, but I don't
> remember if it is returned for computer.
>
> I've a control digit calculation routine in BASIC (MS-BASIC), I'll
> create a version of MSX. Please wait...
>
>>>I would like to get any information on how to make own bar codes.
>
> I can send my program but it only runs with compatible EPSON 9 pins
> printers...
Uhm.. so it does not perform a screen dump, but sends the data directly
to the printer?
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