Raspberry pi connection error

Question

Yujin Goto on 18 Jan 2019

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https://nl.mathworks.com/matlabcentral/answers/440368-raspberry-pi-connection-error

Commented: chaitanya addala on 3 Apr 2019

I am trying to connect MATLAB to the Raspberry pi by with following command, but this error happens.

I choose "Customize the existing ..." when I select Linux operating system, bacause it didn't work well with the other way(tried all network selection). And all peripheral modules are enabled now.

How can I solve this?

>> rpi = raspi('xxx.xxx.xxx.xxx', 'pi', 'xxx');

### Updating Raspberry Pi I/O server...

### Connecting to board...

### Connected to 172.20.10.5...

### Creating server folder...

### Transferring source files...

### Building MATLAB I/O server...

Error executing command "make -C /opt/MATLAB/server_v18.1.0 -f Makefile". Details:

STDERR: server.c: In function ‘bindSocket’:

server.c:44:13: warning: pointer targets in passing argument 1 of ‘sprintf’ differ in signedness

[-Wpointer-sign]

sprintf(serverAddr, "tcp://*:%d",port);

^~~~~~~~~~

In file included from server.c:1:0:

/usr/include/stdio.h:366:12: note: expected ‘char * restrict’ but argument is of type ‘unsigned char

*’

extern int sprintf (char *__restrict __s,

^~~~~~~

server.c:55:25: warning: pointer targets in passing argument 2 of ‘nn_bind’ differ in signedness

[-Wpointer-sign]

ret = nn_bind(sock, serverAddr);

^~~~~~~~~~

In file included from server.c:14:0:

/usr/local/include/nanomsg/nn.h:352:15: note: expected ‘const char *’ but argument is of type

‘unsigned char *’

NN_EXPORT int nn_bind (int s, const char *addr);

^~~~~~~

server.c: In function ‘main’:

server.c:128:15: warning: unused variable ‘thread’ [-Wunused-variable]

pthread_t thread;

^~~~~~

server.c:127:15: warning: unused variable ‘clientSock’ [-Wunused-variable]

int sock, clientSock;

^~~~~~~~~~

handler.c: In function ‘receiveRequest’:

handler.c:232:26: warning: passing argument 2 of ‘sockRecv’ from incompatible pointer type

[-Wincompatible-pointer-types]

ret = sockRecv(sock, req, sizeof(REQUEST_Header_t));

^~~

handler.c:116:12: note: expected ‘char *’ but argument is of type ‘REQUEST_t * {aka struct <anonymous>

*}’

static int sockRecv(int sock, char *req, int size)

^~~~~~~~

handler.c: In function ‘executeCommand’:

handler.c:588:13: warning: this ‘while’ clause does not guard... [-Wmisleading-indentation]

while(fgets(tempBuff,40 ,fp)!=NULL);

^~~~~

handler.c:589:13: note: ...this statement, but the latter is misleadingly indented as if it is guarded

by the ‘while’

{

^

handler.c:694:60: warning: pointer targets in passing argument 1 of ‘strlen’ differ in signedness

I2C.c: In function ‘I2C_open’:

I2C.c:29:23: warning: unused variable ‘i2c_funcs’ [-Wunused-variable]

unsigned long i2c_funcs = 0;

^~~~~~~~~

I2C.c: In function ‘EXT_I2C_readRegister’:

I2C.c:81:22: warning: assignment discards ‘const’ qualifier from pointer target type

[-Wdiscarded-qualifiers]

msg[0].buf = ®

^

I2C.c: In function ‘EXT_I2C_writeRegister’:

I2C.c:120:22: warning: assignment discards ‘const’ qualifier from pointer target type

[-Wdiscarded-qualifiers]

msg[0].buf = ®

^

I2C.c:124:22: warning: assignment discards ‘const’ qualifier from pointer target type

[-Wdiscarded-qualifiers]

msg[1].buf = data;

^

I2C.c: In function ‘EXT_I2C_write’:

I2C.c:154:19: warning: assignment discards ‘const’ qualifier from pointer target type

[-Wdiscarded-qualifiers]

msg.buf = data;

^

joystick.c: In function ‘EXT_JOYSTICK_INIT’:

joystick.c:45:25: warning: suggest parentheses around comparison in operand of ‘&’ [-Wparentheses]

for(ii=0; ii<100 & glob_buffer.gl_pathv[i] != '\0'; ii++)

~~^~~~

joystick.c: In function ‘EXT_JOYSTICK_READ’:

joystick.c:82:17: warning: suggest parentheses around comparison in operand of ‘&’ [-Wparentheses]

for(ii=0;(ii<100 & sh_evdevName[ii] != '\0');ii++)

~~^~~~

frameBuffer.c: In function ‘EXT_FRAMEBUFFER_INIT’:

frameBuffer.c:45:24: warning: suggest parentheses around comparison in operand of ‘&’ [-Wparentheses]

for(ii=0;ii<100 & glob_buffer.gl_pathv[i] != '\0';ii++)

~~^~~~

frameBuffer.c: In function ‘EXT_FRAMEBUFFER_WRITEPIXEL’:

frameBuffer.c:71:9: warning: unused variable ‘ii’ [-Wunused-variable]

int ii ;

^~

frameBuffer.c: In function ‘EXT_FRAMEBUFFER_DISPLAYIMAGE’:

frameBuffer.c:98:17: warning: suggest parentheses around comparison in operand of ‘&’ [-Wparentheses]

for(ii=0; ii<100 & sh_fbname[ii] != '\0'; ii++)

~~^~~~

frameBuffer.c:96:10: warning: variable ‘fileName’ set but not used [-Wunused-but-set-variable]

char fileName[100];

^~~~~~~~

frameBuffer.c:95:9: warning: unused variable ‘pxllocation’ [-Wunused-variable]

int pxllocation=0;

^~~~~~~~~~~

alsa_rdwr.c: In function ‘set_hwparams’:

alsa_rdwr.c:155:47: warning: pointer targets in passing argument 2 of

‘snd_pcm_hw_params_get_buffer_size’ differ in signedness [-Wpointer-sign]

snd_pcm_hw_params_get_buffer_size(params, &audioData->bufferSize);

^

In file included from /usr/include/alsa/asoundlib.h:54:0,

from alsa_rdwr.c:24:

/usr/include/alsa/pcm.h:841:5: note: expected ‘snd_pcm_uframes_t * {aka long unsigned int *}’ but

argument is of type ‘snd_pcm_sframes_t * {aka long int *}’

int snd_pcm_hw_params_get_buffer_size(const snd_pcm_hw_params_t *params, snd_pcm_uframes_t *val);

^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

TimerBasedRecorder.c: In function ‘allocateDataMemory’:

TimerBasedRecorder.c:183:35: warning: pointer targets in assignment differ in signedness

[-Wpointer-sign]

tmpPdata->FileMemBuff = (char *)malloc((TIME_STAMP_BYTES + GPIO_VALUE_BYTES +

GPIO_SUB_TOKEN_SIZE));

^

TimerBasedRecorder.c:197:21: warning: pointer targets in passing argument 1 of ‘sprintf’ differ in

signedness [-Wpointer-sign]

sprintf(tmpPdata->memBuff,"gpio%d|", pData->perId);

^~~~~~~~

In file included from TimerBasedRecorder.c:1:0:

/usr/include/stdio.h:366:12: note: expected ‘char * restrict’ but argument is of type ‘unsigned char

*’

extern

STDOUT: make: ディレクトリ '/opt/MATLAB/server_v18.1.0'　に入ります

[Compiling] auth.c