Search found 26 matches

by epokh
Sun Apr 19, 2009 1:19 pm
Forum: NXJ Projects
Topic: unable to connect bluetooth nxtosek on rfcomm
Replies: 1
Views: 2176

Even using rfcomm commands I cannot get it to work:
rfcomm bind
rfcomm connect
rfcomm listen
none of them works
by epokh
Sat Apr 18, 2009 5:44 pm
Forum: NXJ Projects
Topic: unable to connect bluetooth nxtosek on rfcomm
Replies: 1
Views: 2176

unable to connect bluetooth nxtosek on rfcomm

Hi guys, did somebody manage to connect the nxtOsek in bluetooth mode to the rfcomm interface in Linux systems. I tried hard with python and bluez both in client and server mode but it doesn't work. I can discover the device but cannot associate. print "performing inquiry..." nearby_device...
by epokh
Tue Mar 17, 2009 12:43 pm
Forum: NXJ Projects
Topic: nxtOsek sigma delta ADC i2c interface
Replies: 1
Views: 1830

progress

I just finished to design a pcb interfacing to the SMD adc converter.
I'm now wrestling the non-conventional RJ12 connector which is not present in the eagle library!
by epokh
Tue Mar 10, 2009 9:51 am
Forum: NXJ Projects
Topic: nxtOsek sigma delta ADC i2c interface
Replies: 1
Views: 1830

nxtOsek sigma delta ADC i2c interface

Hi takashi, do you see any problem in using this sigma delta converter via i2c? http://uk.farnell.com/jsp/search/productdetail.jsp?SKU=1206859 Description * 16BIT ADC, SIGMA DELTA, SMD, 1110A0 * Resolution, Bits:16bit * Sampling Rate:240SPS * Channels, No. of:1 * Input Type:Differential * Interface ...
by epokh
Sat Feb 14, 2009 3:07 pm
Forum: NXJ Projects
Topic: osek null pointer usage
Replies: 1
Views: 1490

osek null pointer usage

Hi takashi, I would like to know how can I check if a pointer is null or not, for instance this routine: void lif_init(Lif *ptr,float R,float C,float deltaT) { if(ptr!=NULL) { float tau=R*C; ptr->alfa=(tau/(tau+deltaT)); ptr->beta=(R*deltaT)/(tau...
by epokh
Fri Jan 16, 2009 2:35 pm
Forum: NXJ Projects
Topic: LEJOS OSEK: ANSI C/C++, RTOS for NXT
Replies: 44
Views: 40105

cool

O that's true I was fooled by the _OSEK_ in between!
What's new in the 2.07?
by epokh
Tue Jan 13, 2009 10:33 am
Forum: NXJ Projects
Topic: LEJOS OSEK: ANSI C/C++, RTOS for NXT
Replies: 44
Views: 40105

Lejos Osek 2.06

Hi takashi, I have a weird compilation error when I try to compile in c++/src, even though the makefile is correct I get the error: make all errorhook.c:11:20: error: kernel.h : No such file or directory errorhook.c:13: error: syntax error before 'ercd' make: *** [errorhook.o] Error 1 I also checked...
by epokh
Wed Dec 17, 2008 9:30 am
Forum: NXJ Software
Topic: ecrobotNXT matlab nxtOSEK folder problem
Replies: 2
Views: 1973

Thanks Takashi, now is compiling properly and I also moved everything in directory without spaces (like GNUARM root dir) as I read the installation instructions.
by epokh
Tue Dec 16, 2008 4:05 pm
Forum: NXJ Software
Topic: ecrobotNXT matlab nxtOSEK folder problem
Replies: 2
Views: 1973

ecrobotNXT matlab nxtOSEK folder problem

Hi guys I have a stupid problem, this is my configuration >> ecrobotnxtsetup(); Specified path to cygwin/bin: C:\cygwin\bin Specified path to GNUARM root: C:\Program Files\GNUARM Specified path to NeXTTool root: C:\cygwin\cygdrive\nxt Set MATLAB path to environment directory. Generate C:\cyg...
by epokh
Tue May 29, 2007 10:06 am
Forum: NXJ Projects
Topic: LEJOS OSEK: ANSI C/C++, RTOS for NXT
Replies: 44
Views: 40105

That's what I was waiting for!
I can port easily neural networks and fuzzy systems on topper!
COOOOOOOOOOOOOOL
by epokh
Fri May 11, 2007 2:08 pm
Forum: NXJ Software
Topic: how to print a double
Replies: 2
Views: 2573

O gosh thanks!
by epokh
Thu May 03, 2007 5:00 pm
Forum: NXJ Software
Topic: how to print a double
Replies: 2
Views: 2573

how to print a double

I need to print the a double value on the LCD.
Which kind of conversion I need?
If I do like:
double x=0.123232;
LCD.drawString("Value: ",x,1,1);
nothing is displayed because I bet the concatenation property is not implemented.
Any suggestions?
by epokh
Thu May 03, 2007 1:45 pm
Forum: NXJ Software
Topic: NXJ and maximum sampling time
Replies: 2
Views: 1678

Ah oky this is clear. So I will set a maxium limit of let's say 4 or 6 millisiseconds. Thanks. 8)
by epokh
Tue May 01, 2007 12:48 pm
Forum: NXJ Software
Topic: Lejos and 2-d arrays
Replies: 4
Views: 2162

Eheh.
I need also somebody to test it.
Actually I'm using a sigmoid function fo the activation.
But it's very easy to add new activation function.
Yeah I will send it.
It's working well on Java, but I need to test it well on nxj.
I'll pm you.
Cheers/
by epokh
Sun Apr 29, 2007 9:11 pm
Forum: NXJ Software
Topic: Lejos and 2-d arrays
Replies: 4
Views: 2162

O perfect! I was testing an implementation of a feed-forward neural network.
So it's oky!
Cheers.

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