 | | Re: compiling problem
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thanks for the advice rob, it compiled successfully (19 years ago, 21-Oct-05, to lugnet.robotics.rcx.nqc)
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| | Re: compiling problem
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(...) thanks for replying Kevin, a) i did not know there were compile options, how do i change them? b) i am getting parse errors on the close brackets just before ELSE and the third-last bracket thanks (19 years ago, 21-Oct-05, to lugnet.robotics.rcx.nqc)
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| | Re: compiling problem
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You are missing semicolons after the: Wait(turn_time) lines (both) And a code suggestion, instead of: task drive() { while(true) { OnFwd(OUT_A); } } make it: task drive() { OnFwd(OUT_A); while(true) { } } as the motor stays OnFwd until turned off. (...) (19 years ago, 21-Oct-05, to lugnet.robotics.rcx.nqc)
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| | Re: compiling problem
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Hi Bennet, Before we can help, we need a bit more information: a) What NQC compile options are you using? b) What syntax errors are you getting? Kev (...) <snip> (19 years ago, 21-Oct-05, to lugnet.robotics.rcx.nqc)
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| | compiling problem
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could someone please tell me what is wrong with this program? i am new at nqc and can not seem to find a way to compile it. the program is for a front-wheel-drive tricycle similar to Michael Gasperi's version of a "grey walter turtle" #define (...) (19 years ago, 21-Oct-05, to lugnet.robotics.rcx.nqc)
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| | Re: NQC/BricxCC test
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(...) Only if active is meant to cause the watch window to quit polling for values if some other BricxCC window is the active window. When graphing this means that after you bring up the graph window you need to click back on the Watch window to (...) (19 years ago, 18-Oct-05, to lugnet.robotics.rcx.nqc)
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| | Re: NQC/BricxCC test
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(...) Duh! I had 'only if active' ticked and I dont suppose that changes in my light sensor were enough to trigger it. I now have watching the brick & graphing working! I notice that (unused) counter 0 and 1 take on the values of var 0 and 1 and (...) (19 years ago, 18-Oct-05, to lugnet.robotics.rcx.nqc)
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| | Re: NQC/BricxCC test
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(...) This seems to have fixed all the problems that I was having with the serial tower and Bricx. [It also downloaded new (Swan)firmware OK] The template right-click is great too :-) I wasn't able test out the new (Vers.10) graphing part as I dont (...) (19 years ago, 18-Oct-05, to lugnet.robotics.rcx.nqc)
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| | NQC/BricxCC test
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I could use some help testing a modification to NQC and BricxCC which is attempting to correct some problems I introduced with the serial IR tower and also the USB tower. Could a few adventurous souls download (URL) and try out the NQC and BricxCC (...) (19 years ago, 14-Oct-05, to lugnet.robotics.rcx.nqc)
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| | NQC release 3.1r4
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(URL) changed the Spybot program code generation slightly so that it matches that generated by the MindScript compiler. Tasks which are not empty are no longer ended with a Stop Task sequence. Empty tasks are ended (as before) by a Stop Task (...) (19 years ago, 13-Oct-05, to lugnet.robotics.rcx.nqc)
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| | NQC release 3.1r3
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(URL) a bug in expressions like a = a*2 + a*3; Thanks! John Hansen (19 years ago, 4-Oct-05, to lugnet.robotics.rcx.nqc)
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| | Re: Latest version BrixCC
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(...) I have not yet made an official 3.3.7.9 release of BricxCC. My apologies for the delay. For now you can use the latest version in swan_test.zip. John Hansen (19 years ago, 29-Sep-05, to lugnet.robotics.rcx.nqc)
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| | Latest version BrixCC
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Hi, I found on the sourceforge.net the Brixcc version 3.3.7.7 and in the swan_test.zip the version 3.3.7.9. Is there a newer version? Regards, Jan Kromhout Hellevoetsluis-NL (19 years ago, 27-Sep-05, to lugnet.robotics.rcx.nqc)
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| | Re: time sampling under the rcx standard OS
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(...) Here's a code byte from my LegWay code. ---- int MotorSpeedArray[32] = {1,3,2,0}; // Speeds // ... later in the program... if (sys_time>CheckTime) // check system timer - is it time to check sensors again? { L1 = ReadSensor(SENSOR_1); L3 = (...) (19 years ago, 21-Sep-05, to lugnet.robotics.rcx.nqc)
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| | Re: time sampling under the rcx standard OS
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Hi Steve, As I'm quite new to BrickOS and to C programming, I'm sorry I'm not sure I understood what you meant, neither how you do this : (...) - Do you check the sensor at a higher rate, and only send a command to the motor at 1kHz ? - How do you (...) (19 years ago, 21-Sep-05, to lugnet.robotics.rcx.nqc)
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| | Re: time sampling under the rcx standard OS
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(...) Well, in BrickOS, my loops usually execute at > 1kHz, so I usually just set it to check the sensor, and set the motor every 1ms. So it just keeps checking the clock. (...) Yes. There's an option that lets you download an "SREC" type of file. I (...) (19 years ago, 19-Sep-05, to lugnet.robotics.rcx.nqc)
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| | Re: time sampling under the rcx standard OS
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(...) Sorry, I didn't explain. This program only aims at checking the loop frequency capability of the rcx firmware, implementing a PWM. The rotation sensor is only used as a potentiometer knob, allowing me to determine by hand the PWM pulse as (...) (19 years ago, 19-Sep-05, to lugnet.robotics.rcx.nqc)
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| | Re: time sampling under the rcx standard OS
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Thank you Matt, the RCX loops much faster with your advices : about 10 loops per second. But as this frequency depends on the calculations included in the loop, I’m afraid this will not be enough. So I tried to download (URL) but it just appears as (...) (19 years ago, 18-Sep-05, to lugnet.robotics.rcx.nqc)
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| | Re: time sampling under the rcx standard OS
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Thank you Dick, for advicing me to switch to the faster firmware, I’m sure I need both a 1-millisecond basic clock, and the 128 power level capability. So I tried to download it from (URL) but it just appears as a text file, which I don’t know how (...) (19 years ago, 18-Sep-05, to lugnet.robotics.rcx.nqc)
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| | RE: time sampling under the rcx standard OS
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Here are some comments on how to improve your code for real-time performance. 1. Move the "SetUserDisplay" out of the loop and put it just before the loop. 2. I think the "OnFwd" macro is actually two instructions: "Fwd" and then "On". Replace this (...) (19 years ago, 17-Sep-05, to lugnet.robotics.rcx.nqc)
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