I configured the following settings to generate vref 2.5V for ADC on stm32l496zg nucleo board . but i check voltage pin on Vref+ it is 3.3v only.Kindly Reply.
HAL_SYSCFG_EnableVREFBUF(); HAL_SYSCFG_VREFBUF_HighImpedanceConfig(SYSCFG_VREFBUF_HIGH_IMPEDANCE_DISABLE); HAL_SYSCFG_VREFBUF_VoltageScalingConfig( SYSCFG_VREFBUF_VOLTAGE_SCALE1);