2 ******************************************************************************
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3 * @file stm32l1xx_dac.h
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4 * @author MCD Application Team
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6 * @date 31-December-2010
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7 * @brief This file contains all the functions prototypes for the DAC firmware
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9 ******************************************************************************
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12 * THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
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13 * WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
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14 * TIME. AS A RESULT, STMICROELECTRONICS SHALL NOT BE HELD LIABLE FOR ANY
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15 * DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
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16 * FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
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17 * CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
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19 * <h2><center>© COPYRIGHT 2010 STMicroelectronics</center></h2>
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20 ******************************************************************************
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23 /* Define to prevent recursive inclusion -------------------------------------*/
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24 #ifndef __STM32L1xx_DAC_H
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25 #define __STM32L1xx_DAC_H
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31 /* Includes ------------------------------------------------------------------*/
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32 #include "stm32l1xx.h"
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34 /** @addtogroup STM32L1xx_StdPeriph_Driver
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42 /* Exported types ------------------------------------------------------------*/
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45 * @brief DAC Init structure definition
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50 uint32_t DAC_Trigger; /*!< Specifies the external trigger for the selected DAC channel.
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51 This parameter can be a value of @ref DAC_trigger_selection */
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53 uint32_t DAC_WaveGeneration; /*!< Specifies whether DAC channel noise waves or triangle waves
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54 are generated, or whether no wave is generated.
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55 This parameter can be a value of @ref DAC_wave_generation */
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57 uint32_t DAC_LFSRUnmask_TriangleAmplitude; /*!< Specifies the LFSR mask for noise wave generation or
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58 the maximum amplitude triangle generation for the DAC channel.
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59 This parameter can be a value of @ref DAC_lfsrunmask_triangleamplitude */
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61 uint32_t DAC_OutputBuffer; /*!< Specifies whether the DAC channel output buffer is enabled or disabled.
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62 This parameter can be a value of @ref DAC_output_buffer */
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65 /* Exported constants --------------------------------------------------------*/
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67 /** @defgroup DAC_Exported_Constants
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71 /** @defgroup DAC_trigger_selection
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75 #define DAC_Trigger_None ((uint32_t)0x00000000) /*!< Conversion is automatic once the DAC1_DHRxxxx register
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76 has been loaded, and not by external trigger */
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77 #define DAC_Trigger_T6_TRGO ((uint32_t)0x00000004) /*!< TIM6 TRGO selected as external conversion trigger for DAC channel */
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78 #define DAC_Trigger_T7_TRGO ((uint32_t)0x00000014) /*!< TIM7 TRGO selected as external conversion trigger for DAC channel */
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79 #define DAC_Trigger_T9_TRGO ((uint32_t)0x0000001C) /*!< TIM9 TRGO selected as external conversion trigger for DAC channel */
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80 #define DAC_Trigger_T2_TRGO ((uint32_t)0x00000024) /*!< TIM2 TRGO selected as external conversion trigger for DAC channel */
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81 #define DAC_Trigger_T4_TRGO ((uint32_t)0x0000002C) /*!< TIM4 TRGO selected as external conversion trigger for DAC channel */
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82 #define DAC_Trigger_Ext_IT9 ((uint32_t)0x00000034) /*!< EXTI Line9 event selected as external conversion trigger for DAC channel */
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83 #define DAC_Trigger_Software ((uint32_t)0x0000003C) /*!< Conversion started by software trigger for DAC channel */
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85 #define IS_DAC_TRIGGER(TRIGGER) (((TRIGGER) == DAC_Trigger_None) || \
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86 ((TRIGGER) == DAC_Trigger_T6_TRGO) || \
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87 ((TRIGGER) == DAC_Trigger_T7_TRGO) || \
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88 ((TRIGGER) == DAC_Trigger_T9_TRGO) || \
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89 ((TRIGGER) == DAC_Trigger_T2_TRGO) || \
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90 ((TRIGGER) == DAC_Trigger_T4_TRGO) || \
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91 ((TRIGGER) == DAC_Trigger_Ext_IT9) || \
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92 ((TRIGGER) == DAC_Trigger_Software))
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98 /** @defgroup DAC_wave_generation
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102 #define DAC_WaveGeneration_None ((uint32_t)0x00000000)
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103 #define DAC_WaveGeneration_Noise ((uint32_t)0x00000040)
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104 #define DAC_WaveGeneration_Triangle ((uint32_t)0x00000080)
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105 #define IS_DAC_GENERATE_WAVE(WAVE) (((WAVE) == DAC_WaveGeneration_None) || \
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106 ((WAVE) == DAC_WaveGeneration_Noise) || \
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107 ((WAVE) == DAC_WaveGeneration_Triangle))
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112 /** @defgroup DAC_lfsrunmask_triangleamplitude
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116 #define DAC_LFSRUnmask_Bit0 ((uint32_t)0x00000000) /*!< Unmask DAC channel LFSR bit0 for noise wave generation */
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117 #define DAC_LFSRUnmask_Bits1_0 ((uint32_t)0x00000100) /*!< Unmask DAC channel LFSR bit[1:0] for noise wave generation */
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118 #define DAC_LFSRUnmask_Bits2_0 ((uint32_t)0x00000200) /*!< Unmask DAC channel LFSR bit[2:0] for noise wave generation */
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119 #define DAC_LFSRUnmask_Bits3_0 ((uint32_t)0x00000300) /*!< Unmask DAC channel LFSR bit[3:0] for noise wave generation */
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120 #define DAC_LFSRUnmask_Bits4_0 ((uint32_t)0x00000400) /*!< Unmask DAC channel LFSR bit[4:0] for noise wave generation */
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121 #define DAC_LFSRUnmask_Bits5_0 ((uint32_t)0x00000500) /*!< Unmask DAC channel LFSR bit[5:0] for noise wave generation */
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122 #define DAC_LFSRUnmask_Bits6_0 ((uint32_t)0x00000600) /*!< Unmask DAC channel LFSR bit[6:0] for noise wave generation */
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123 #define DAC_LFSRUnmask_Bits7_0 ((uint32_t)0x00000700) /*!< Unmask DAC channel LFSR bit[7:0] for noise wave generation */
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124 #define DAC_LFSRUnmask_Bits8_0 ((uint32_t)0x00000800) /*!< Unmask DAC channel LFSR bit[8:0] for noise wave generation */
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125 #define DAC_LFSRUnmask_Bits9_0 ((uint32_t)0x00000900) /*!< Unmask DAC channel LFSR bit[9:0] for noise wave generation */
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126 #define DAC_LFSRUnmask_Bits10_0 ((uint32_t)0x00000A00) /*!< Unmask DAC channel LFSR bit[10:0] for noise wave generation */
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127 #define DAC_LFSRUnmask_Bits11_0 ((uint32_t)0x00000B00) /*!< Unmask DAC channel LFSR bit[11:0] for noise wave generation */
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128 #define DAC_TriangleAmplitude_1 ((uint32_t)0x00000000) /*!< Select max triangle amplitude of 1 */
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129 #define DAC_TriangleAmplitude_3 ((uint32_t)0x00000100) /*!< Select max triangle amplitude of 3 */
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130 #define DAC_TriangleAmplitude_7 ((uint32_t)0x00000200) /*!< Select max triangle amplitude of 7 */
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131 #define DAC_TriangleAmplitude_15 ((uint32_t)0x00000300) /*!< Select max triangle amplitude of 15 */
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132 #define DAC_TriangleAmplitude_31 ((uint32_t)0x00000400) /*!< Select max triangle amplitude of 31 */
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133 #define DAC_TriangleAmplitude_63 ((uint32_t)0x00000500) /*!< Select max triangle amplitude of 63 */
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134 #define DAC_TriangleAmplitude_127 ((uint32_t)0x00000600) /*!< Select max triangle amplitude of 127 */
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135 #define DAC_TriangleAmplitude_255 ((uint32_t)0x00000700) /*!< Select max triangle amplitude of 255 */
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136 #define DAC_TriangleAmplitude_511 ((uint32_t)0x00000800) /*!< Select max triangle amplitude of 511 */
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137 #define DAC_TriangleAmplitude_1023 ((uint32_t)0x00000900) /*!< Select max triangle amplitude of 1023 */
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138 #define DAC_TriangleAmplitude_2047 ((uint32_t)0x00000A00) /*!< Select max triangle amplitude of 2047 */
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139 #define DAC_TriangleAmplitude_4095 ((uint32_t)0x00000B00) /*!< Select max triangle amplitude of 4095 */
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141 #define IS_DAC_LFSR_UNMASK_TRIANGLE_AMPLITUDE(VALUE) (((VALUE) == DAC_LFSRUnmask_Bit0) || \
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142 ((VALUE) == DAC_LFSRUnmask_Bits1_0) || \
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143 ((VALUE) == DAC_LFSRUnmask_Bits2_0) || \
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144 ((VALUE) == DAC_LFSRUnmask_Bits3_0) || \
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145 ((VALUE) == DAC_LFSRUnmask_Bits4_0) || \
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146 ((VALUE) == DAC_LFSRUnmask_Bits5_0) || \
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147 ((VALUE) == DAC_LFSRUnmask_Bits6_0) || \
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148 ((VALUE) == DAC_LFSRUnmask_Bits7_0) || \
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149 ((VALUE) == DAC_LFSRUnmask_Bits8_0) || \
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150 ((VALUE) == DAC_LFSRUnmask_Bits9_0) || \
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151 ((VALUE) == DAC_LFSRUnmask_Bits10_0) || \
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152 ((VALUE) == DAC_LFSRUnmask_Bits11_0) || \
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153 ((VALUE) == DAC_TriangleAmplitude_1) || \
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154 ((VALUE) == DAC_TriangleAmplitude_3) || \
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155 ((VALUE) == DAC_TriangleAmplitude_7) || \
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156 ((VALUE) == DAC_TriangleAmplitude_15) || \
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157 ((VALUE) == DAC_TriangleAmplitude_31) || \
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158 ((VALUE) == DAC_TriangleAmplitude_63) || \
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159 ((VALUE) == DAC_TriangleAmplitude_127) || \
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160 ((VALUE) == DAC_TriangleAmplitude_255) || \
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161 ((VALUE) == DAC_TriangleAmplitude_511) || \
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162 ((VALUE) == DAC_TriangleAmplitude_1023) || \
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163 ((VALUE) == DAC_TriangleAmplitude_2047) || \
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164 ((VALUE) == DAC_TriangleAmplitude_4095))
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169 /** @defgroup DAC_output_buffer
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173 #define DAC_OutputBuffer_Enable ((uint32_t)0x00000000)
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174 #define DAC_OutputBuffer_Disable ((uint32_t)0x00000002)
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175 #define IS_DAC_OUTPUT_BUFFER_STATE(STATE) (((STATE) == DAC_OutputBuffer_Enable) || \
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176 ((STATE) == DAC_OutputBuffer_Disable))
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181 /** @defgroup DAC_Channel_selection
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185 #define DAC_Channel_1 ((uint32_t)0x00000000)
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186 #define DAC_Channel_2 ((uint32_t)0x00000010)
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187 #define IS_DAC_CHANNEL(CHANNEL) (((CHANNEL) == DAC_Channel_1) || \
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188 ((CHANNEL) == DAC_Channel_2))
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193 /** @defgroup DAC_data_alignment
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197 #define DAC_Align_12b_R ((uint32_t)0x00000000)
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198 #define DAC_Align_12b_L ((uint32_t)0x00000004)
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199 #define DAC_Align_8b_R ((uint32_t)0x00000008)
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200 #define IS_DAC_ALIGN(ALIGN) (((ALIGN) == DAC_Align_12b_R) || \
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201 ((ALIGN) == DAC_Align_12b_L) || \
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202 ((ALIGN) == DAC_Align_8b_R))
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207 /** @defgroup DAC_wave_generation
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211 #define DAC_Wave_Noise ((uint32_t)0x00000040)
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212 #define DAC_Wave_Triangle ((uint32_t)0x00000080)
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213 #define IS_DAC_WAVE(WAVE) (((WAVE) == DAC_Wave_Noise) || \
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214 ((WAVE) == DAC_Wave_Triangle))
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219 /** @defgroup DAC_data
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223 #define IS_DAC_DATA(DATA) ((DATA) <= 0xFFF0)
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229 /** @defgroup DAC_interrupts_definition
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233 #define DAC_IT_DMAUDR ((uint32_t)0x00002000)
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234 #define IS_DAC_IT(IT) (((IT) == DAC_IT_DMAUDR))
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241 /** @defgroup DAC_flags_definition
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245 #define DAC_FLAG_DMAUDR ((uint32_t)0x00002000)
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247 #define IS_DAC_FLAG(FLAG) (((FLAG) == DAC_FLAG_DMAUDR))
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257 /* Exported macro ------------------------------------------------------------*/
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258 /* Exported functions ------------------------------------------------------- */
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260 /* Function used to set the DAC configuration to the default reset state *****/
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261 void DAC_DeInit(void);
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263 /* DAC channels configuration: trigger, output buffer, data format functions */
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264 void DAC_Init(uint32_t DAC_Channel, DAC_InitTypeDef* DAC_InitStruct);
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265 void DAC_StructInit(DAC_InitTypeDef* DAC_InitStruct);
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266 void DAC_Cmd(uint32_t DAC_Channel, FunctionalState NewState);
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267 void DAC_SoftwareTriggerCmd(uint32_t DAC_Channel, FunctionalState NewState);
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268 void DAC_DualSoftwareTriggerCmd(FunctionalState NewState);
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269 void DAC_WaveGenerationCmd(uint32_t DAC_Channel, uint32_t DAC_Wave, FunctionalState NewState);
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270 void DAC_SetChannel1Data(uint32_t DAC_Align, uint16_t Data);
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271 void DAC_SetChannel2Data(uint32_t DAC_Align, uint16_t Data);
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272 void DAC_SetDualChannelData(uint32_t DAC_Align, uint16_t Data2, uint16_t Data1);
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273 uint16_t DAC_GetDataOutputValue(uint32_t DAC_Channel);
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275 /* DMA management functions ***************************************************/
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276 void DAC_DMACmd(uint32_t DAC_Channel, FunctionalState NewState);
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278 /* Interrupts and flags management functions **********************************/
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279 void DAC_ITConfig(uint32_t DAC_Channel, uint32_t DAC_IT, FunctionalState NewState);
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280 FlagStatus DAC_GetFlagStatus(uint32_t DAC_Channel, uint32_t DAC_FLAG);
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281 void DAC_ClearFlag(uint32_t DAC_Channel, uint32_t DAC_FLAG);
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282 ITStatus DAC_GetITStatus(uint32_t DAC_Channel, uint32_t DAC_IT);
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283 void DAC_ClearITPendingBit(uint32_t DAC_Channel, uint32_t DAC_IT);
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289 #endif /*__STM32L1xx_DAC_H */
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299 /******************* (C) COPYRIGHT 2010 STMicroelectronics *****END OF FILE****/
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