Re: How connect PC Embedded to MDB (Vending Machine)

On 29 sep, 16:33, James Beck <j...@xxxxxxxxxxxxxxxxxxxxxxx> wrote:
In article <1da3a443-e530-487a-8cb7-e4166e206414
@i76g2000hsf.googlegroups.com>, juanma.pal...@xxxxxxxxx says...





On 29 sep, 11:11, juanma.freela...@xxxxxxxxx wrote:
On 29 sep, 03:32, "PhilW" <p...@xxxxxxxxxxxxx> wrote:

<juanma.freela...@xxxxxxxxx> wrote in message

news:c4d5b1b0-ea81-446b-ba2a-4f7ebe2811c3@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

Hi!

I'm sorry but I am not English and I speack English very bad.

My question is: How connect a PC Embedded to Vending Machine? I know
that exist a protocol MDB that is used by vending machine, but this
conector is different to pc conector (RS232, USB, i2c, etc). Can I
connect a PC Embedded by MDB? How?

Anybody understand me?

Thanks you!

We understand you.

Read the spec to understand what is required to connect.

However, even once you have done the hardware to be able to connect to a
PC's RS232 port you will, more than likely run into the problem of the 9bit
char format not being supported on a std PC serial port.

You can fudge it using the mark/space parity control but it is not very
nice.

Why don't you use ccTalk instead?www.cctalk.org

regards
PhilW

Thanks you.

I dont understand all, what is "ccTalk"??

regards.
Juanma.- Ocultar texto de la cita -

- Mostrar texto de la cita -

I read a little about spec of "ccTalk", and this is other protocol,
no?

I need "to talk" with a vending machine. The standard of vending
machine is the MDB (i think).

Are you understand me?

Thanks you.
regards.

Here is a USB to MDB bridge :http://www.geocities.com/bonusdata/analyzer/mdb_interface/mdb_interface.
htm
(sorry for the spanning)

Here is the protocol :http://www.vending.org/technical/MDB_3.0.pdf

www.vending.orgis where you need to go for any info about MDC/ICP- Ocultar texto de la cita -

- Mostrar texto de la cita -

Thanks you!!

I know this all, but the "USB to MDB" is not a good solution for me,
should be others solutions...

I am interesting in ccTal PhilW but i dont understand how apply this
to the vending machine.

Thanks you.
regards.
.

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