 | | PbForth compatibility
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Hi, Does PbForth run on RCX 1.0 and RCS 1.5? (20 years ago, 22-Jan-05, to lugnet.robotics.rcx.pbforth)
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| | RCX3 - Can extra hardware functionality be added?
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Having had a good look inside my RCX, I'm thinking seriously about what is really possible in the same space envelope, whether extra ports or functions could be added for RCX3. I think it's useful for us to know what's inside the RCX, especially if (...) (20 years ago, 21-Jan-05, to lugnet.robotics, lugnet.robotics.rcx)
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| | Re: RCX IR Tx Circuit - and Now Rx Circuit Too!
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(...) For the time being, all the RCX ones are in the same Brickshelf folder, though obviously this is unavailable for a while whenever I add one. Code Pilot, RC Tower and other units are in other folders. Russell Nelson has added links on his (...) (20 years ago, 21-Jan-05, to lugnet.robotics.rcx, FTX)
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| | Re: RCX IR Tx Circuit
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(...) Thanks for all your work on this Mark! It is very interesting, even for someone like me with only basic knowledge of electronics. Are you planning to put it all together on a web page some day? ROSCO (20 years ago, 20-Jan-05, to lugnet.robotics.rcx, FTX)
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| | RCX IR Tx Circuit
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Here's my drawing of the RCX IR transmission circuit (receiver circuit to follow soon): (URL) With the voltages as shown, the RCX is not transmitting. The IR LEDs are powered by a 600mA current sink. I haven't measured for waveforms yet - the (...) (20 years ago, 20-Jan-05, to lugnet.robotics, lugnet.robotics.rcx, FTX)
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| | Re: Today's Challenge
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(...) <snippage> (...) Thankyou, Claude. Now as to your further comments: I think that there is likely to be much merit in your words. I have not been able to transfer them into code as yet and so beg your further indulgence. In (very) pseudocode I (...) (20 years ago, 20-Jan-05, to lugnet.robotics.rcx.robolab)
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| | Re: pre-releases brickos-0.9.0/lnpd-0.9.0 avail. for testing/feedback
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A number of you have noticed that the files have been unavailable from the sourceforge mirrors. I was just able to download both of the files: brickos and lnpd. If you've been waiting, you should be able to get them now. (...) (20 years ago, 19-Jan-05, to lugnet.robotics.rcx.legos)
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| | Re: pre-releases brickos-0.9.0/lnpd-0.9.0 avail. for testing/feedback
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(...) Yeah. Sounds good. Will this address the issue of the sensor port reads taking up 60% of processor time? If you don't know what I'm talking about, I can go through old LUGNET posts and find it. Steve (20 years ago, 18-Jan-05, to lugnet.robotics.rcx.legos)
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| | pre-releases brickos-0.9.0/lnpd-0.9.0 avail. for testing/feedback
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It's a new year and now you have a new version of brickOS. Yes, you read that right... a new version and a first version of lnpd for Linux that works with this new version of BrickOS. Along with this lnpd support, this BrickOS now supports USB IR (...) (20 years ago, 18-Jan-05, to lugnet.robotics.rcx.legos)
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| | BricxCC test release
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Folks, I've been fiddling around with how BricxCC and NQC talk to the RCX when using the USB tower. It's because of several users experiencing problems when trying to download programs from within BricxCC (using NQC behind the scenes). Depending on (...) (20 years ago, 18-Jan-05, to lugnet.robotics, lugnet.robotics.rcx, lugnet.robotics.rcx.nqc)
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| | Re: Help with latest pbForth firmware
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(...) I've just uploaded a new version of a test build of BricxCC (as well as NQC) to (URL) I've just redone my tests again since you said 3.3.7.7 worked with the same version I tried earlier and now it is working with my current version. I don't (...) (20 years ago, 18-Jan-05, to lugnet.robotics.rcx.pbforth)
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| | Re: Help with latest pbForth firmware
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Hi John, Just to let you know that I have the same version of PbForth and it works fine with BricxCC version 3.3 (Build 3.3.7.7). Would you like me to try your new version here? Bye Mario (20 years ago, 18-Jan-05, to lugnet.robotics.rcx.pbforth)
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| | RCX Sensor Port and Power Supply Circuits
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Here are my drawings of the RCX sensor port and power supply circuits, complete with measured voltages from inside the box. These are averages measured with a DMM, not an indication of peak waveforms. I might use an oscilloscope later if there's a (...) (20 years ago, 17-Jan-05, to lugnet.robotics, lugnet.robotics.rcx, FTX)
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| | Help with latest pbForth firmware
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I recently downloaded the latest pbForth files for Win32 from Ralph's site. I overwrote the previous version of the pbForth firmware file as well. Today, while I was trying to verify that my latest BricxCC changes haven't broken anything I tried (...) (20 years ago, 17-Jan-05, to lugnet.robotics.rcx.pbforth)
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| | Simulink Compilation
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Dear BrickOS users We would like to start using Simulink + Realtime Workshop (Mathsoft)to compile and download code to the RCX. I have successfully completed the installtion procedure for BrickOS - but noticed that the setup code provided by (...) (20 years ago, 17-Jan-05, to lugnet.robotics.rcx.legos)
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| | Re: sub-vi begin vs end control
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(...) Hi, This is a *minor* bug in RoboLab. The sub-vi diagram will have begin and end terminal labels swapped, but the program will function properly. Use the text tool to rename the terminal labels. Thought it should have been rectified in ver (...) (20 years ago, 17-Jan-05, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx)
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| | Re: sub-vi begin vs end control
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(...) In a LabVIEW program (vi) there is a front panel and a block diagram. The front panel is the user interface and contains both controls and indicators. When you place a control/indicator on the front panel a corresponding terminal is created on (...) (20 years ago, 17-Jan-05, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx)
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| | RE: sub-vi begin vs end control
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Hi Tom, Just for my education purpose, I'd like to understand the difference between the "begin" & "end" control boxes at the "Front Panel" window. Although they look identical, they must be different since they failed to wire to the blocks next to (...) (20 years ago, 16-Jan-05, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx)
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| | Re: sub-vi begin vs end control
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(...) It is a leftover from LabVIEW. When you create a sub.vi, LabVIEW reuses the name of whatever is wired to the control/indicator. This behavior makes perfect sense in LabVIEW but much less so in Robolab. FWIW, the names are little more than (...) (20 years ago, 16-Jan-05, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx)
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| | sub-vi begin vs end control
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Hi, After a sub-vi is created, there are two controls created namely begin and end. Would someone explain why they are backwards? That means, it creates an "end" control linked to the beginning of the sub-vi, while the "begin" at the end. Thank in (...) (20 years ago, 16-Jan-05, to lugnet.robotics.rcx.robolab, lugnet.robotics.rcx)
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