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i setup the STM32L4A6RGTx ioc, and try to configure LSE, but can't becinfugred in Clock configuration page.it was set to grey.whether anybody knows the reason?CUBEIDE 1.13.2MX 6.9.2-RC4  
Hi,i Pin PC8 is configured as GPIO,  but unfortuately, after execute following codesHAL_GPIO_WritePin(GPIOC, GPIO_PIN_8, GPIO_PIN_SET) andHAL_GPIO_WritePin(GPIOC, GPIO_PIN_8, GPIO_PIN_RESET) , the pin status didn't change, always keeps in High status...