Are some STM32 MCU development board libraries incomplete purposefully?

[JNiin.1]

Hello, this is my first time asking something in here.

I'm trying to create a USB PD consumer application on STM32G071B Discovery board.

I've created a USB PD project in STM32 Cube MX.

Many critical functions relating to USB PD have no content.

Downloadable library for mentioned board:

STM32Cube_FW_G0_V1.3.0

More specifically the USBPD_Analyzer demonstration project. 

Many critical functions relating to USB PD have no content.

Also I've tried crossreferencing some functions with a similar library meant for a Nucleo board:

STM32CubeExpansion_USBPD_F0

It has many functions named the same way, but with contents.

Am I supposed to write those critical functions myself?

And if that's the case, then I don't even know where to begin.

I can't help but feel like I'm missing something here.

Any kind of help is much appreciated!

Edit:

Also I'm following stm32 UM2552.

[KnarfB]

Can you pls. give an example what you are missing?

[JNiin.1]

Thank you for your reply!

USBPD_DPM_UserInit() and USBPD_DPM_SetupNewPower - both located in usbpd_dpm_user.c

Every function located in usbpd_pwr_if.c

For example USBPD_PWR_IF_Init()

So these functions for example don't have any contents. Just a fixed "return USBPD_ERROR;".

[KnarfB]

Hmm. Don't have your board, so I cannot run the code.

But in the STM32CubeIDE project

STM32Cube_FW_G0_V1.3.0\Projects\STM32G071B-DISCO\Demonstrations\USBPD_Analyzer\SW4STM32\STM32G071B-DISCO_USBPD_Analyzer

file

/STM32G071B-DISCO_USBPD_Analyzer/Application/User/usbpd_dpm_user.c

implements USBPD_DPM_UserInit() in line 153-187

and

/STM32G071B-DISCO_USBPD_Analyzer/Application/User/usbpd_pwr_if.c

implements USBPD_PWR_IF_Init in lines 216-241.

[JNiin.1]

Thank you for the reply!

I had imported this project in a way that it did not have anything in /user.

I reimported and it's all good.

Thank you so much!

I have a follow-up question.

I noticed that the said STM32 CubeMX generated project has a function called "USBPD_PWR_IF_SetProfile" - it's empty.

The analyzer demonstration project does not have an equivalent function.

Any ideas where to look?

[Tesla DeLorean]

I think many of the projects are just frameworks, allowing them to be customized for the specific application, with the appropriate level of function and error checking/recover, and provide project engineers with job security.

[chaaalyy]

Statement of the year: "...and provide project engineers with job security" :D

But replace "...allowing them to be customized..." with "...needing them to be reinvented by customers for getting implemented by ST after the customers have done ST´s job..." ;)