Sending unsigned byte array to serial port

[DanB1983]

I would like to send a string of hexadecimal values to the serial port (using the "VISA write" block).

At the moment, I have a working design that will take a string of hex values, and convert them into an unsigned byte array.

However, it would seem that the "VISA write" block only accepts a string as its input.

If I use the "Byte array to string" block, then I can only convert the hex values that correspond directly to ascii characters.  I.e. it will only convert hex values that lie between 0x20 and 0x7E.  However, I need to be able to send values in the range 0x01 to 0xF8.

Any suggestions welcome.

Dan

[bo200008]

Have you tried using escape sequence? For example \20 is a space, \30 is 0.

[smercurio_fc]

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DanB1983 wrote: 

If I use the "Byte array to string" block, then I can only convert the hex values that correspond directly to ascii characters.  I.e. it will only convert hex values that lie between 0x20 and 0x7E.  However, I need to be able to send values in the range 0x01 to 0xF8.

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No it doesn't. Why would you think that?

Message Edited by smercurio_fc on 07-22-2009 08:49 AM

[Mark_SAI]

Hello,

I have also used typecast:

It really depends on how explicit you want the code to be, using Byte array to string is more obvious. Both execute in less than a millisecond on my machine.

[RavensFan]

Never mind. I didn't see all the other replies before I started typing mine.

Message Edited by Ravens Fan on 07-30-2009 12:30 AM

[salmaiss]

Hello,

please if you have found the solution told me I have the same problem

[arteitle]

What specifically is your problem? As explained above, there is no problem with converting between byte arrays and strings.