Results 461 – 480 of about 5300.
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 | | RCX to RCX NQC
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| One last email on this topic. There's new opcodes in the Swan firmware to support many data bytes in a single "mailbox" message. The standard firmware supports "mailbox" messages with a single byte parm. I found this very restrictive in building RCX (...) (19 years ago, 15-Sep-05, to lugnet.robotics.rcx)
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rcx, how
(score: 1.107)
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| | Re: BricxCC release 3.3.7.10
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| (...) I've only just downloaded 3.3.7.10 having played with 3.3.7.7 for a week [using a serial tower and WinXP] and Vers.10 does seem to have a problem communicating , it sometimes cannot set a program running:The RCX shows the recieving triangle (...) (19 years ago, 12-Oct-05, to lugnet.robotics.rcx)
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rcx, how
(score: 1.107)
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| | ROM image using USB tower
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| Hi, I'm doing a project at University involving developing some example programs running on a Lego RCX in order to demonstrate/teach OS concepts. I'd really like to get hold of a ROM image from the RCX, but I only have a USB tower available, and (...) (21 years ago, 12-Nov-03, to lugnet.robotics.rcx)
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usb, rcx
(score: 1.106)
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| | Re: Serial to USB Adapters for iMac
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| (...) "no reply from RCX" is probably not an adapter problem. My first guess would be that the RCX doesn't have firmware loaded (If you see "00.00" on the display, firmware is loaded, if you just see an icon and "1", then it isn't). Second guess (...) (24 years ago, 26-Dec-00, to lugnet.robotics.rcx.nqc)
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usb, rcx, ir
(score: 1.106)
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| | Re: "Non-Robolab" LabView functions
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| (...) ---...--->snip I've not had the time yet to analyze the patch. Seems that you replace the first firmware handler. In Robolab the firmware is found under ..ROBOLAB\Engine\RCX1\Text. They simply have changed the extension .lgo to .txt and call (...) (21 years ago, 30-Nov-03, to lugnet.robotics.rcx.robolab)
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ris, rcx
(score: 1.105)
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| | Serial to USB Adapters for iMac
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| Hello Up until yesterday my nephew has been using the Xircom USB to Serial adapter on an iMac (Blueberry 350 ) with MPW NQC quite successfully. Now NQC seems to be able to transmit via the adapter (the green data light flashes on the adapter and on (...) (24 years ago, 26-Dec-00, to lugnet.robotics.rcx.nqc)
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usb, rcx, ir
(score: 1.105)
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| | Re: Robolab, byte codes and assembler
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| (...) Should be legal, perhaps. But I was just suggesting that before sending him off to try to patch the firmware, he might want to make sure it was legal to do so. Although RIS and RoboLab may not use the same identical firmware, that doesn't (...) (21 years ago, 29-Nov-03, to lugnet.robotics.rcx.robolab)
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ris, rcx
(score: 1.105)
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| | Re: RCX to RCX LNP
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| (...) So, I finally sat down and figured out how the lnp state machine works in BrickOS. Turns out it was pretty easy to add in a new set of states so it can process a standard OpCode & store the parameters in variables. At this point, I'm not (...) (19 years ago, 8-Sep-05, to lugnet.robotics.rcx.legos)
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rcx, how
(score: 1.104)
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| | Re: Remote Message Buttons
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| (...) I just use the standard IR message stuff from BrickOS. They are normal messages, so this works just fine. Here are some lines of code: (I think it's in lnp.h) #include <sys/lnp.h> ... clear_msg(); ... if (msg_received != 0) my_message_value = (...) (21 years ago, 8-Dec-03, to lugnet.robotics.rcx.legos)
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rcx, ir
(score: 1.103)
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usb, rcx
(score: 1.103)
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| | Re: MacNQC and RCX Troubles
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| (...) Bob, What type of Mac is it ? I have an original RIS 1.0. My Mac PB-G3 (wallstreet) is unable to key up the IR tower at all, but an old SE/30 works just fine. I think there are subtle differences in the voltages on Mac serial ports between (...) (24 years ago, 29-Dec-00, to lugnet.robotics.rcx.nqc)
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ris, rcx, ir
(score: 1.102)
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usb, rcx
(score: 1.102)
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| | BricxCC & fast firmware download
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| I've had a report that fast firmware downloading doesn't work with the latest release of BricxCC (either tower). In my tests, with an RCX 1.0 brick plugged in, low ambient light, short distances from the USB tower, and all the firmwares I have (...) (21 years ago, 3-Nov-03, to lugnet.robotics.rcx)
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usb, rcx
(score: 1.102)
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| | Use laptops IrDA
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| Hi all, I want to make a program on my laptop so that I can use it (the laptop that is) as a remote control to give orders to my Mindstorm robot, just simple things like turn left/right etc. I'm going to use Java on my laptop, Lejos on the RCX and (...) (23 years ago, 1-Oct-01, to lugnet.robotics.rcx.java, lugnet.robotics.rcx)
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rcx, ir, how
(score: 1.101)
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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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rcx, how
(score: 1.101)
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| | brickos sound-related crash
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| I've been having some trouble with the 0.2.6.10 brickos kernel compiled with gcc 3.3.2. Whenever I try to use the dsound_play or sound_system functions, the kernel crashes immediately. In some cases, the RCX really goes haywire and motors start (...) (21 years ago, 31-Oct-03, to lugnet.robotics.rcx.legos)
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usb, rcx
(score: 1.101)
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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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rcx, how
(score: 1.101)
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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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rcx, how
(score: 1.101)
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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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rcx, how
(score: 1.100)
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rcx, how
(score: 1.100)
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