|
 | | Re: leJOS & LDCC IRP
|
| (...) I re-used a function to send command packets to the RCX that was designed for use with the original firmware, so it toggles the 0x08 bit of any repeated opcode bytes. Mark pointed this out to me when I was developing Full Throttle, but then he (...) (21 years ago, 12-Sep-03, to lugnet.robotics.rcx.java, lugnet.trains)
| |
|  
mask
(score: 1.338)
|
|
| | Re: Mindstorms 3.0 Wish List
|
| All the thoughts on this subject are really interesting reading! As several people have said before, the reality is that LEGO designs things for kids who are probably at the mercy of what their parents will buy. So, anything LEGO does has to (...) (21 years ago, 5-Nov-03, to lugnet.robotics)
| |
|
mask
(score: 1.329)
|
|
| |
|
mask
(score: 1.328)
|
|
| | Re: C$ - Code Only
|
| (...) Folks who read rtlToronto can skip this part. I added it because I'm cross posting to robotics.rcx. For those who don't know, rtlToronto had a contest with robots playing Connect Four. Creating a robot for this is double faceted. Getting (...) (21 years ago, 6-Feb-04, to lugnet.org.ca.rtltoronto, lugnet.robotics.rcx)
| |
|
mask
(score: 1.312)
|
|
| | [long] Interrupt programming, buggy code
|
| Hi all, I am currently programming the Lego RCX at low-level (plain C) using the GCC cross-compiler for Hitachi H8/300 and Kekoa Proudfoot's LibRCX. In fact, I'm designing exercises for students that learn micro-controller programming. Therefore, I (...) (21 years ago, 2-Mar-04, to lugnet.robotics.rcx)
| |
|
mask
(score: 1.308)
|
|
| | Re: table brickos light to percent
|
| (...) Hi Thomas, Here's the formula used in the dsensor.h include file: #define ds_scale(x) ((unsigned int)(x)>>6) //!< mask off bottom 6 bits #define LIGHT(a) (147 - ds_scale(a)/7) //!< map light sensor to 0..LIGHT_MAX This maps the raw sensor (...) (20 years ago, 27-May-04, to lugnet.robotics.rcx.legos)
| |
|
mask
(score: 1.293)
|
|
| | Re: bitwise manipulations in C
|
| (...) Hi Scott, Steve summed it up well. Here's a fairly simple example: (URL) processes data from a LEGO remote control, which arrives every few ms as a "bit mask", with each 1 bit representing a pressed key on the remote. If you look in (...) (20 years ago, 6-Aug-04, to lugnet.robotics)
| |
|
mask
(score: 1.281)
|
|
| | bitwise manipulations in C
|
| (...) Hi Scott, please regard this as an extension to explainations from Steve Baker: 1. the code Binary Decimal Hexadecimal 0000 0 0 0001 1 1 0010 2 2 0011 3 3 0100 4 4 0101 5 5 0110 6 6 0111 7 7 1000 8 8 1001 9 9 1010 10 A 1011 11 B 1100 12 C 1101 (...) (20 years ago, 11-Aug-04, to lugnet.robotics)
| |
|
mask
(score: 1.280)
|
|
| | Re: Rotating through a four-bit nibble
|
| (...) What are you optimizing for? Code clarity? Code speed? Code length? There are (to my knowledge) no truly pretty solutions to this. I would tend to go with: int rotbits(int input, int numbits, int offset, int rotdist) { int mask = (~((~0) << (...) (19 years ago, 20-Sep-05, to lugnet.robotics)
| |
|
mask
(score: 1.213)
|
|
| | Rotating through a four-bit nibble
|
| No, it's not pornographic (look over in rtlToronto - I hear it's a fun thread). But I'm working in NQC, and I need to rotate the bit series in a 4-bit (or 8-bit) nibble embedded in a 16-bit word. Annoying. Any suggestions? Masking the desired four (...) (19 years ago, 20-Sep-05, to lugnet.robotics)
| |
|
mask
(score: 1.209)
|
|
| | Re: Re[2]: Mindstorms NXT programming languages
|
| (...) Yes, I suspect the same. The ROM mask *is* the custom part of the chip that LEGO can easily define without big expenditures. I noticed that the atmel chip also has a boot ROM that is separate from the flash. If they use that chip we might (...) (19 years ago, 15-Jan-06, to lugnet.robotics)
| |
|
mask
(score: 1.190)
|
|
| | Re: Problem with RCX
|
| (...) I wanted to let everyone know that I was able to fix my RCX and tell you what was wrong with it. There was a bridge between the positive terminal pad and a very thin portion of the ground plane along the outer edge of the PCB. Apparently the (...) (18 years ago, 2-Jun-06, to lugnet.robotics)
| |
|
mask
(score: 1.165)
|
|
| | Re: What do these macros do?
|
| Ok, well, replying to my own message in the best of internet style... I got impatient and starting prodding. After a few hard resets, I came up with the following: Yes, the Get/SetDisplayNormal() permits you to write directly to screen memory. This (...) (18 years ago, 11-Jan-07, to lugnet.robotics.nxt, lugnet.robotics)
| |
|
mask
(score: 1.127)
|
|
| | Re: Extending the firmware through DrawGraphic()
|
| (...) Hmm, this is interesting. The capabilities that aren't used by the current firmware are very curious. I can see the purpose of multiple sprites and draw modes though. With that, you could do masked graphics. A mask sprite would be drawn first (...) (18 years ago, 22-Feb-07, to lugnet.robotics.nxt)
| |
|
mask
(score: 1.119)
|
|
| |
|
mask
(score: 1.115)
|
|
| | Pop-up parts description
|
| How might I implement a pop-up parts description when a student points the mouse at a part on the screen? Granted this procedure needs a library of part names in the language of choice. I imagine having to define a collision mask around the part and (...) (17 years ago, 20-Apr-07, to lugnet.robotics.edu)
| |
|
mask
(score: 1.109)
|
|
| | New version of Mac IC: 3.1 beta 5
|
| A new beta version of Interactive C for the Macintosh, Mac IC 3.1b5 is now online at: (URL) and improvements from beta 4: * Printing is now enabled * Definition files and board recognition are better handled * Files, functions, and globals info (...) (29 years ago, 1-Apr-96, to lugnet.robotics.handyboard)
| |
|
event
(score: 1.098)
|
|
| | NXT & RIC
|
| A while back I wrote part 1 of a 2 part description of the RIC file format on the Nxtasy blog. I still haven't gotten around to writing part 2 (been busy writing other stuff) but RIC-related things have been hanging around on the edges of my (...) (17 years ago, 29-Jun-07, to lugnet.robotics.nxt)
| |
|
mask
(score: 1.097)
|
|
| | Re: sony ir
|
| Dirk, Without actually seeing your icb function, it would be hard to determine exactly what is going on. But here are some guesses: 1) When you are modifying control registers in MC, make sure that you use bit commands so that you don't set or erase (...) (28 years ago, 16-Jul-96, to lugnet.robotics.handyboard)
| |
|
event
(score: 1.087)
|
|
| | Trinity College robot contest
|
| Hi everyone, Jake Mendelssohn has posted the rules for the 4th annual spring 1997 Fire-Fighting Robot Contest. I went to the 1996 contest and it was great fun. The contest draws people from all over the world, including hobbyists, university folk, (...) (28 years ago, 11-Sep-96, to lugnet.robotics.handyboard)
| |
|
event
(score: 1.081)
|
