How can enable the SYSCFG in STM32WB55RGV6

[MOB1]

Hi,

I want to enable the SYSCGF in STM32WB55RGV6 , but when ı look the reference manuel; it says that SYSCFG is on the APB2 bus however when look the APB2ENR register there is nothing about SYSCFG . What should ı do to enable SYSCFG?

[Morgane.F · Accepted solution]

Hello @MOB​ ,

First, let me welcome you to the STM32 Community 😀  

According to the Reference Manual in section 18.3.3, there is no clock enable control bit provided in the RCC controller (RCC_APB2ENR), because the clock for SYSCFG is shared with the comparator modules. So SYSCFG cannot be enabled or disabled.

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Morgane

[MOB1]

Thank you so much 😊