Can not change Baudrate in config file.

[vietnq-silabs]

When I change the Baudrate in the /etc/uic/uic.cfg file, it doesn't work.

I have to change the Baudrate in zwapi_open_serial_port() function in zwapi_serial.c and rebuild.

[rzr]

Thanks for reporting, what about if the value is passed as argument of zpc CLI ?

[vietnq-silabs]

Could you tell me how to do it, so I will test and report?

[rzr]

I meant as a run arg:

build/applications/zpc/zpc --zpc.serial=(...) zpc.baudrate=$value

Is it a regression?

Because the only place i see trace of zpc.baudrate is in:

https://github.com/search?q=repo%3ASiliconLabs%2FUnifySDK+zpc.baudrate&type=code

Should it be (re)introduced in:

z-wave-protocol-controller/applications/zpc/components/zpc_config/src/zpc_config.c

It should be trivial to add, if needed a debconf file can add handle user input too

[FrancescoRestelli]

hi, @rzr & @vietnq-silabs

i am facing this issue, (support ticket 00326533)
i tried the suggested "run arg" zpc --zpc.serial=/dev/ttyACM1 zpc.baudrate=460800 however stty shows the baudrate did not change.

the only way to have it working is patching zwapi_serial.c, however i am also having the issue that the bootloader on our units on the field is configured with 115200. so i would need a way to configure a different baudrate for bootloader vs serialapi.

i have no issues with testing a patch or developing one myself if i get some hints what the smartest approach would be.

thank you br francesco

[rzr]

Well apparently that part is covered in test_config_file by:

$ gdb build/_deps/unifysdk-build/components/uic_config/test/uic_config_test

You will see it run that test

184 TEST_ASSERT_EQUAL(115200, result_int);

I will look at related functions and run zpc and break on them

Do you know when the regression has been introduced ?

[FrancescoRestelli]

i would say this never worked
unifySDK tag 1.5.0
https://github.com/SiliconLabs/UnifySDK/blob/3b43b68085407d42f566e797bf7bc292079fd36f/applications/zpc/components/zwave_api/platform/posix/zwapi_serial.c#L117

UnifySDK tag v1.0.0
https://github.com/SiliconLabs/UnifySDK/blob/9f241f49cb91c8a042117cf6340460f69ea605bb/applications/zpc/components/zwave_api/platform/posix/zwapi_serial.c#L117

[lmolina]

184 TEST_ASSERT_EQUAL(115200, result_int);

The test is reading the configuration file, not the value that it's actually in use.

https://github.com/SiliconLabs/UnifySDK/blob/fb360ad38cdc677ba1859abd04fe3e4e12d53a65/components/uic_config/test/config_test.cpp#L182-L184

Do you know when the regression has been introduced ?

It looks like this parameter was hardcoded