STM32L4x2 DAC1 Digital-to-analog converter DAC 0x40007400 0x0 0x400 registers CR CR control register 0x0 0x20 read-write 0x00000000 EN1 DAC channel1 enable 0 1 DAC2 Digital-to-analog converter DAC 0x40007400 0x0 0x400 registers CR CR control register 0x0 0x20 read-write 0x00000000 EN1 DAC channel1 enable 0 1 DAC3 Digital-to-analog converter DAC 0x40007400 0x0 0x400 registers CR CR control register 0x0 0x20 read-write 0x00000000 EN1 DAC channel1 enable 0 1