Subject:
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What are Opcodes for ...
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Newsgroups:
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lugnet.robotics.rcx.nqc
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Date:
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Thu, 3 May 2001 17:49:58 GMT
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Viewed:
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2157 times
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hi All, (specially Dave)
I'm building a realtime graphical viewer ,like Michael Gasperi's Mr. Sensor, but with more possibilities (see
http://baserv.uci.kun.nl/~smientki/Lego_Knex/Lego_electronica/Mindscope.htm
My goal is to get an 100 Hz througput from RCX to PC.
At this moment I've reached 40 Hz, and the main bottleneck seems to be the baudrate of 2400 Hz.
So I think I'll reach 100 Hz with 4800 Baud and some other minor modifications.
SetSerialComm()
SetSerialPacket()
SetSerialData()
SendSerial()
and the constant values used in these opcodes.
I use the following NQC program, which I want to adept dynamically by the program according to the selected signals:
----------------------
task aap()
{
int x;
SetSerialComm(SERIAL_COMM_DEFAULT);
SetSerialPacket(SERIAL_PACKET_DEFAULT);
SetSerialData(0,0xAA);
repeat (100)
{
x=SENSOR_1;
SetSerialData(1,(x & 0x7F));
SetSerialData(2,((x / 128) & 0x7F));
x=SENSOR_2;
SetSerialData(3,(x & 0x7F));
SetSerialData(4,((x / 128) & 0x7F));
SendSerial(0,5);
}
}
-------------------
best regards
Stef Mientki
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Message has 1 Reply:
 | | Re: What are Opcodes for ...
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| There's a good document in the Lego SDK that explains all of the opcodes. If you want to see which opcodes particular NQC instructions are using, just generate a code listing with the -l option. Then refer to the Lego documentation for the format of (...) (24 years ago, 3-May-01, to lugnet.robotics.rcx.nqc)
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