1 STMicroelectronics STM32 DAC
3 The STM32 DAC is a 12-bit voltage output digital-to-analog converter. The DAC
4 may be configured in 8 or 12-bit mode. It has two output channels, each with
6 It has built-in noise and triangle waveform generator and supports external
7 triggers for conversions. The DAC's output buffer allows a high drive output
10 Contents of a stm32 dac root node:
11 -----------------------------------
13 - compatible: Should be one of:
16 - reg: Offset and length of the device's register set.
17 - clocks: Must contain an entry for pclk (which feeds the peripheral bus
19 - clock-names: Must be "pclk".
20 - vref-supply: Phandle to the vref+ input analog reference supply.
21 - #address-cells = <1>;
25 - resets: Must contain the phandle to the reset controller.
26 - A pinctrl state named "default" for each DAC channel may be defined to set
27 DAC_OUTx pin in mode of operation for analog output on external pin.
29 Contents of a stm32 dac child node:
30 -----------------------------------
31 DAC core node should contain at least one subnode, representing a
32 DAC instance/channel available on the machine.
35 - compatible: Must be "st,stm32-dac".
36 - reg: Must be either 1 or 2, to define (single) channel in use
37 - #io-channel-cells = <1>: See the IIO bindings section "IIO consumers" in
38 Documentation/devicetree/bindings/iio/iio-bindings.txt
42 compatible = "st,stm32h7-dac-core";
43 reg = <0x40007400 0x400>;
46 vref-supply = <®_vref>;
47 pinctrl-names = "default";
48 pinctrl-0 = <&dac_out1 &dac_out2>;
53 compatible = "st,stm32-dac";
54 #io-channels-cells = <1>;
59 compatible = "st,stm32-dac";
60 #io-channels-cells = <1>;