LibXR::STM32DAC Class Reference

STM32 DAC 驱动实现 / STM32 DAC driver implementation. More...

#include <stm32_dac.hpp>

Inheritance diagram for LibXR::STM32DAC:

Collaboration diagram for LibXR::STM32DAC:

Public Member Functions
	STM32DAC (DAC_HandleTypeDef *hdac, uint32_t channel, float init_voltage=0.0f, float vref=3.3f)
	构造 DAC 对象 / Construct DAC object
ErrorCode	Write (float voltage) override
	输出电压 / Output analog voltage
Public Member Functions inherited from LibXR::DAC
	DAC ()=default
	默认构造函数 / Default constructor

Detailed Description

STM32 DAC 驱动实现 / STM32 DAC driver implementation.

Definition at line 17 of file stm32_dac.hpp.

Constructor & Destructor Documentation

STM32DAC()

STM32DAC::STM32DAC	(	DAC_HandleTypeDef *	hdac,
		uint32_t	channel,
		float	init_voltage = 0.0f,
		float	vref = 3.3f )

构造 DAC 对象 / Construct DAC object

Definition at line 7 of file stm32_dac.cpp.

    : hdac_(hadc), channel_(channel), vref_(vref)
{
// NOLINTBEGIN
#if defined(DAC_ALIGN_12B_R)
  align_ = DAC_ALIGN_12B_R;
  resolution_ = 4095;
#elif defined(DAC_ALIGN_8B_R)
  align_ = DAC_ALIGN_8B_R;
  resolution_ = 255;
#else
#error "No supported DAC_ALIGN_xxx defined"
#endif
  // NOLINTEND
 
  Write(init_voltage);
  HAL_DAC_Start(hdac_, channel_);
}

Member Function Documentation

Write()

ErrorCode STM32DAC::Write ( float voltage )

overridevirtual

输出电压 / Output analog voltage

Parameters

voltage

模拟电压值 / Analog voltage value

Returns

ErrorCode 错误码 / Error code

Implements LibXR::DAC.

Definition at line 27 of file stm32_dac.cpp.

{
  voltage = std::clamp(voltage, 0.0f, vref_);
  return HAL_DAC_SetValue(
             hdac_, channel_, align_,
             static_cast<uint16_t>(voltage / vref_ * static_cast<float>(resolution_))) ==
                 HAL_OK
             ? ErrorCode::OK
             : ErrorCode::FAILED;
}

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The documentation for this class was generated from the following files:

• driver/st/stm32_dac.hpp
• driver/st/stm32_dac.cpp