creating server folder error Raspberry pi connection Matlab

I am trying to connect MATLAB to a Raspberry Pi 3 Model B (32 bits) using the following command, but I get the following error. How can I fix this?

>> r=raspi('192.168.1.82','dsp','dsp2025')

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

### Connecting to board...

### Connected to 192.168.1.82...

### Creating server folder...

Error executing command "sudo make -C /opt/MATLAB/mw_server_v25.1.0 SERVER_DIR=/opt/MATLAB/mw_server_v25.1.0 -f

Makefile_raspiPeriphs". Details:

STDERR: MW_SocketCAN.c: In function ‘int32_T MW_CAN_InitSocket(const char*, int32_T, int32_T)’:

MW_SocketCAN.c:265:1: warning: no return statement in function returning non-void [-Wreturn-type]

265 | }

| ^

MW_gpio.c: In function ‘int EXT_GPIO_init(unsigned int, uint8_T)’:

MW_gpio.c:34:20: error: ‘gpiod_chip_open_by_name’ was not declared in this scope; did you mean ‘gpiod_chip_info_get_name’?

34 | gpioChip = gpiod_chip_open_by_name(GPIO_CHIP_NAME);

| ^~~~~~~~~~~~~~~~~~~~~~~

| gpiod_chip_info_get_name

MW_gpio.c:45:13: error: ‘gpiod_line_release’ was not declared in this scope; did you mean ‘gpiod_line_request’?

45 | gpiod_line_release(existingGpioInfo->line);

| ^~~~~~~~~~~~~~~~~~

| gpiod_line_request

MW_gpio.c:50:31: error: ‘gpiod_chip_get_line’ was not declared in this scope; did you mean ‘gpiod_chip_get_info’?

50 | struct gpiod_line *line = gpiod_chip_get_line(gpioChip, gpio);

| ^~~~~~~~~~~~~~~~~~~

| gpiod_chip_get_info

MW_gpio.c:56:15: error: ‘gpiod_line_request_output’ was not declared in this scope; did you mean

‘gpiod_line_request_get_fd’?

56 | gpiod_line_request_output(line, "gpio_app", 0) :

| ^~~~~~~~~~~~~~~~~~~~~~~~~

| gpiod_line_request_get_fd

MW_gpio.c:57:15: error: ‘gpiod_line_request_input’ was not declared in this scope; did you mean ‘gpiod_line_request_get_fd’?

57 | gpiod_line_request_input(line, "gpio_app");

| ^~~~~~~~~~~~~~~~~~~~~~~~

| gpiod_line_request_get_fd

MW_gpio.c: In function ‘int EXT_GPIO_terminate(unsigned int)’:

MW_gpio.c:81:13: error: ‘gpiod_line_release’ was not declared in this scope; did you mean ‘gpiod_line_request’?

81 | gpiod_line_release(gpioInfos[i].line);

| ^~~~~~~~~~~~~~~~~~

| gpiod_line_request

MW_gpio.c: In function ‘int EXT_GPIO_read(unsigned int, boolean_T*)’:

MW_gpio.c:122:15: error: ‘gpiod_line_get_value’ was not declared in this scope; did you mean ‘gpiod_line_value’?

122 | int val = gpiod_line_get_value(gpioInfo->line);

| ^~~~~~~~~~~~~~~~~~~~

| gpiod_line_value

MW_gpio.c: In function ‘int EXT_GPIO_write(unsigned int, boolean_T)’:

MW_gpio.c:135:15: error: ‘gpiod_line_set_value’ was not declared in this scope; did you mean ‘gpiod_line_value’?

135 | int ret = gpiod_line_set_value(gpioInfo->line, value);

| ^~~~~~~~~~~~~~~~~~~~

| gpiod_line_value

make: *** [Makefile_raspiPeriphs:228: MW_gpio.c.o] Error 1

STDOUT: make: Entering directory '/opt/MATLAB/mw_server_v25.1.0'

g++ -c -MMD -MP -MF"MW_availableWebcam.c.dep" -MT"MW_availableWebcam.c.o" -O2 -fPIC -D_MATLABIO_ -DIO_CUSTOM_ENABLE=1

-D_MW_DEBUG_=0 -I/opt/MATLAB/mw_server_v25.1.0 -o "MW_availableWebcam.c.o" "MW_availableWebcam.c"

g++ -c -MMD -MP -MF"MW_SocketCAN.c.dep" -MT"MW_SocketCAN.c.o" -O2 -fPIC -D_MATLABIO_ -DIO_CUSTOM_ENABLE=1 -D_MW_DEBUG_=0

-I/opt/MATLAB/mw_server_v25.1.0 -o "MW_SocketCAN.c.o" "MW_SocketCAN.c"

g++ -c -MMD -MP -MF"MW_v4l2_cam.c.dep" -MT"MW_v4l2_cam.c.o" -O2 -fPIC -D_MATLABIO_ -DIO_CUSTOM_ENABLE=1 -D_MW_DEBUG_=0

-I/opt/MATLAB/mw_server_v25.1.0 -o "MW_v4l2_cam.c.o" "MW_v4l2_cam.c"

g++ -c -MMD -MP -MF"MW_gpio.c.dep" -MT"MW_gpio.c.o" -O2 -fPIC -D_MATLABIO_ -DIO_CUSTOM_ENABLE=1 -D_MW_DEBUG_=0

-I/opt/MATLAB/mw_server_v25.1.0 -o "MW_gpio.c.o" "MW_gpio.c"

make: Leaving directory '/opt/MATLAB/mw_server_v25.1.0'

Answer 1

[Teodoro Ibarra]

Thank you, Walter Roberson. The resolution of this issue depends on the operating system installed on the Raspberry Pi.

https://la.mathworks.com/matlabcentral/answers/2181689-failure-to-connect-with-raspberry-pi-4-with-raspi#comment_3346282

Answer 2

[Prasanth Sunkara]

As of R2025b, Trixie OS is not supported. Please use Raspberry Pi Imager app and flash Bookworm OS.

The support for Trixie may get added in the next MATLAB releases