#define Macro syntax got Error message with nRF52840 SDK v15.2.0

RE: #define Macro syntax got Error message with nRF52840 SDK v15.2.0

awneil — Tue, 22 Jan 2019 13:04:18 GMT

[quote userid="76676" url="~/f/nordic-q-a/42836/define-macro-syntax-got-error-message-with-nrf52840-sdk-v15-2-0"]I wonder is my syntax of #define written wrongly [/quote]

remember that the preprocessor just does text substitution - so wherever it sees a macro name, it just replaces that with the text you specified.

The compiler only sees the result of the text substitution - so its error messages will refer to the substituted text.

That's why looking at the preprocessor output will help you to see what is wrong.

RE: #define Macro syntax got Error message with nRF52840 SDK v15.2.0

Jørgen Holmefjord — Tue, 22 Jan 2019 12:47:09 GMT

You will have to assign the macro initialization to a variable of the correct type, then you can pass a pointer to the struct to the function:

ble_gap_adv_params_t adv_params = ADV_1M_LEGACY_CONNECTABLE;
advertising_init_common(&m_adv_data, &adv_params);

RE: #define Macro syntax got Error message with nRF52840 SDK v15.2.0

awneil — Tue, 22 Jan 2019 11:00:46 GMT

In particular, think about how this line is going to expand:

m_adv_handle = advertising_init_common(&m_adv_data, ADV_1M_LEGACY_CONNECTABLE );

Is that going to result in valid 'C' syntax ... ?

RE: #define Macro syntax got Error message with nRF52840 SDK v15.2.0

awneil — Tue, 22 Jan 2019 10:58:19 GMT

The way to debug preprocessor problems is to look at the preprocessor output.

You haven't mentioned what toolchain you're using, but for GCC the option you require is --save-temps

https://gcc.gnu.org/onlinedocs/gcc/Developer-Options.html

This is standard 'C' stuff - not specific to Nordic: