apps/examples: Add path option to SPI Slave test

[eren-terzioglu]

Summary

• apps/examples: Add path option to SPI Slave test

Add path option to spislv_test example

Impact

Impact on user: Yes. Users can test different SPI slave interface just changing command
Impact on build: No.
Impact on hardware: No.
Impact on documentation: No.
Impact on security: No.
Impact on compatibility: No.

Testing

esp32c6-devkitc:spislv config used.

Building

Command to build:

make -j distclean && ./tools/configure.sh esp32c6-devkitc:spislv && make -j && make download ESPTOOL_PORT=/dev/ttyUSB0

Running

spislv -p /dev/spislv0 -x 2 abba and spislv -p /dev/spislv2 -x 2 abba commands used to test

Output

Here is the output

nsh> spislv -p /dev/spislv0 -x 2 abba
Error: Failed to open /dev/spislv0: No such file or directory
nsh> spislv -p /dev/spislv2 -x 2 abba
Slave: Queuing 2 bytes for sending to master: AB BA 

[cederom]

Thank you @eren-terzioglu :-)

[acassis]

@eren-terzioglu normally other applications on NuttX let the user define the device file in the menuconfig. Please change this application to do it, then the users can change it easily

[eren-terzioglu]

@eren-terzioglu normally other applications on NuttX let the user define the device file in the menuconfig. Please change this application to do it, then the users can change it easily

We can add it but do we need to add for already parameterized example?

[acassis]

@eren-terzioglu normally other applications on NuttX let the user define the device file in the menuconfig. Please change this application to do it, then the users can change it easily

We can add it but do we need to add for already parameterized example?

I think we can use slv0 and add the default CONFIG_ to slv2 for ESP32xx board.
Probably @FelipeMdeO created this test only with ESP32 in mind, but all apps on NuttX should be generic and should work in any MCU :-)

[FelipeMdeO]

@eren-terzioglu normally other applications on NuttX let the user define the device file in the menuconfig. Please change this application to do it, then the users can change it easily

We can add it but do we need to add for already parameterized example?

I think we can use slv0 and add the default CONFIG_ to slv2 for ESP32xx board. Probably @FelipeMdeO created this test only with ESP32 in mind, but all apps on NuttX should be generic and should work in any MCU :-)

Yes, I did this implementation and tested it only in esp32 env. Maybe I did a mistake using slv2.

[eren-terzioglu]

Added, please check @acassis