Subject:
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sending a message from the RCX to the PC
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Newsgroups:
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lugnet.robotics.rcx
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Date:
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Sat, 10 May 2003 19:01:28 GMT
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Viewed:
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3025 times
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hi,
I want to end a message and/or acknowledgement from the RCX to the PC. I am not
using BrickOS or the standard firmware. I am using a different software on the
RCX. It doesnt have a function for the sending from the RCX, so I am trying to
do that.
I know that this will work only in the Reply/Request(initialising the
transmission from the PC ) mode since the tower should be on and I can take
care of that.
From the RCX internal page(http://graphics.stanford.edu/~kekoa/rcx/#Opcodes)
opcode F7 is the send message command, so I tried that in my code on the RCX
but it didnt work or do I have to use something more than F7 to inform the RCX
that i am sending a message.
I was using it based on the example below.
Please is there a way, I can do that, anything that can work for the standard
firmware I would be able to adapt it for ERIKA.
*Example: The whole code for sending the message 3 is the hexadecimal :
55 FF 00 F7 08 03 FC FA 05
where 55 FF 00 is the universal opcode-header
F7 is the opcode for the SendMessage-command
08 is the complement of F7 (e.a. 0xFF - 0xF7 = 0x08)
03 the message, FC its complement
FA the checksum, 05 its complement
Thank you.
Michael mfbosu@yahoo.com
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