LL library STM32 OUTPUT compare preload pwm setting enable is unsuccessful，May I ask what is the reason?

[Bence]

When I set Output compare preload to enable in the configuration interface, the generated code shows disable

[waclawek.jan]

Look 2 lines higher than is the highlight - there's the preload enable.

JW

[Bence]

Thank you for your answer. When I set Out put compare preload to disable in Device Configuration Tool, the highlight is still enable. I do n’t know how to configure to change these parameters. Could you tell me if you know?

[waclawek.jan]

I don't know.

@Nesrine.JLASSI​ , can you please have a look at this?

Thanks,

JW

[Bence]

Thank you all the same, JW

[Nesrine.JLASSI]

Hello @Bence​ 

Could you please share your ioc file to check the issue.

Best regards,

Nesrine

[Bence]

Hi, Nesrine . If you need any documents, please tell me。

[Nesrine.JLASSI]

Hello @Bence​ 

The LL are a translation of the intropack HAL drive. So, if in the function of the driver that you call there is a forcing of this parameter, then it appears in the LL code generation. 

In the reference function you would call (if you are in HAL):

HAL_StatusTypeDef HAL_TIM_PWM_ConfigChannel(TIM_HandleTypeDef *htim,

                      TIM_OC_InitTypeDef *sConfig,

                      uint32_t Channel)

There's a call for channel preload.

This is the code you find in LL.

Best regards,

Nesrine

[Bence]

Ok, I know, thank you. My solution is to enable it again during initialization.

[waclawek.jan]

Hi @Nesrine.JLASSI​

Why is then an option in the GUI to enable the preload, if it is ignored?

JW