Connect Matlab with RaspberryPi 3, Firmware 4.4.9
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Hey guys, i want to connect my raspberry pi 3 with matlab using the command mypi=raspi('169.254.0.2','pi','password'). It worked really fine until i made an update on the raspberry from v4.1.19 to v4.4.9 If i undo this update, i can connect it again, but i need the update. Here you can see the error report:
Index exceeds matrix dimensions.
Error in raspi/getLEDConfiguration (line 684)
trigger = ret{1}
do you have any ideas, why this happens and what i can do to connect it?
2 Kommentare
Venkatachala Sarma
am 30 Mai 2016
1. Which version of MATLAB are you using?
2. Are you using Raspbian or any other OS. Could you provide a link from where you are downloading the OS?
3. Could you try the steps provided in the following link and let us know which step is throwing the error?
Antworten (1)
Shogo Muramatsu
am 9 Sep. 2016
Bearbeitet: Shogo Muramatsu
am 9 Sep. 2016
Empty "ret" is the reason.
On your raspberry pi, check the contents of the following file:
/sys/class/leds/led0/trigger
If you find "[mmc0]" after 80 letters in the file, lookfor the following file:
/opt/MATLAB/server v16.1.0/LED.c
find the line 88,
ret = read(fd, (void *)trigger, 80);
and increase the 3rd argument so that "[mmc0]" in "trigger" file is succesfully returned.
Finally, execute the following commands on your raspberry pi:
$ cd /opt/MATLAB/server_v16.1.0
$ sudo make
$ sudo kill -KILL `pgrep MATLABIOserver`
You'd be able to uncomment the line 897 in raspi.m.
2 Kommentare
Xingchi Su
am 18 Okt. 2016
I have followed your procedure, but the errors still exist. Could you please show how did you changed the 3rd argument in
ret = read(fd, (void *)trigger, 80);
Thanks a lot!
Walter Roberson
am 18 Okt. 2016
Search the /sys/class/leds/led0/trigger file and figure out the character position at which the string '[mmc0]' ends in it -- the number of the last character position for it. Now increase that 80 of the read() to be at least as large as that character position.
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