The `nxc` tag is for 'Not eXactly C'.
The nxc tag is for 'Not eXactly C'. This language is described at http://bricxcc.sourceforge.net/nbc/. Apparently, it is an "unofficial" language for the LEGO Mindstorms NXT.
Questions tagged [nxc]
27 questions
3
votes
1 answer
Memory test operation without pointers in NXC on NXT?
I'm trying to write a memory test program for the NXT, since I have several with burned memory cells and would like to identify which NXTs are unusable. This program is intended to test each byte in memory for integrity by:
Allocating 64 bits to…
user1131435
2
votes
3 answers
Separate signed int into bytes in NXC
Is there any way to convert a signed integer into an array of bytes in NXC? I can't use explicit type casting or pointers either, due to language limitations.
I've tried:
for(unsigned long i = 1; i <= 2; i++)
{
MM_mem[id.idx] = ((val & (0xFF <<…
Mateen Ulhaq
- 24,552
- 19
- 101
- 135
2
votes
1 answer
implementing PID algorithm in line following robot
I'm working on a small project with NXT mindstorms set. My intention was to build a Robot that can follow a line very smoothly and as fast as possible. Therefore after a small research I found the PID algorithm and I was able to understand and…
james
- 153
- 1
- 13
2
votes
0 answers
NXT like standard C?
I'm currently working on a project, where we want to program a swarm of nxts. I have a question to this one, and I can't find a precise answer on the web. So there will be a program on my pc, let's call it a switch, which should connect to 3…
themaksmw
- 25
- 6
2
votes
1 answer
NXC communication through USB
How would you send data through the USB port and receive the data in my Linux machine?
task main ()
{
byte data[2] = {1,2};
while (1)
{
Wait(1000);
SetUSBOutputBuffer(0, 2, data);
}
}
Compiled it with:
nbc -d -Z2 usb.nxc
dmesg:
usb 2-1.2:…
ArchHaskeller
- 1,270
- 1
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- 28
1
vote
2 answers
Converting Byte Array to String (NXC)
Is there a way to show a byte array on the NXTscreen (using NXC)?
I've tried like this:
unsigned char Data[];
string Result = ByteArrayToStr(Data[0]);
TextOut(0, 0, Result);
But it gives me a File Error! -1.
If this isn't possible, how can I watch…
Robbe Derks
- 11
- 1
1
vote
0 answers
RGB To HSL Algorithm?
I have seen many algorithms and formulas for converting RGB data to HSL but none were successful.
So where can I get few algorithms/formulas for converting.
Timbelion
1
vote
1 answer
How to control thread's execution order in NXC?
I want to write a parallel program in a preemptive thread scheduling environment and I can use mutex (binary mutexes which are always initialized as not taken), wait instructions, and also thread cooperation instruction (yield to another task in a…
Ali Khalili
- 1,504
- 3
- 18
- 19
1
vote
1 answer
Difference between NXT-G visual programming and NXC C-like programming of Lego brick
I'm approaching to Lego NXT programming and I started from the very good site http://nxtprograms.com . In particular I followed instructions for the simple Segway with light sensor as balancing sensor…
user1131951
- 141
- 7
0
votes
1 answer
How to return array from function in NXC?
How to return array from function in NXC? I tried the following
string[] strsplit(string str)
{
string parts[2] = {"1", "2"};
return parts;
}
but I get Variable name expected. Why?
P.S. if there built-in split function I'll be glad to…
theateist
- 13,879
- 17
- 69
- 109
0
votes
0 answers
Hello World, Bye Cruel World
I am BRAND new at coding, and don't understand. I know this has probably been asked, but I didn't know how to search this specifically.
I am using NXC and a Bricx.
How can I display "Hello World", play a sound, then display "Bye Cruel world" beneath…
0
votes
0 answers
Reading characters within a file (the fseek command) not working in nxc (not-exactly-c) programming
Basically I'm trying to write code that reads a specified value from a file ex: file contains(12345) the code reads specific place (say the 3rd place) and the output = 3
I already know how to write numbers to a file but I am stuck on how to read a…
Lukeyboi
- 1
- 1
0
votes
1 answer
How to split a string in nxc
I've been trying to convert a python project to nxc using the IDE: Brixc Command Center, so that it'll read a text file and split down the information into components where it can process it.
The main road block for me is the split string method…
Joe
- 3
- 3
0
votes
1 answer
While Loops - Time
Quick question that I had a hard time finding in the documentation.
I am trying to do a while loop that will last for an specific amount of time (like 500ms). How quickly could it do one loop? Every loop will not do a big task, but just read if the…
Diaco
- 241
- 1
- 3
- 15
0
votes
1 answer
Using mutexes to call separate tasks nXc
I'm new to using nXc to code my NXT 2.0 robot and I need it to follow other robots and check for obstacles at the same time. However, the two tasks sometimes conflict with each other and when I meet an obstacle it treats it as an object and…
Sandra Ng
- 1
- 3