56 lines
1.5 KiB
C
56 lines
1.5 KiB
C
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#include "./dac/bsp_dac.h"
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DAC_HandleTypeDef DAC_Handler;
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DAC_ChannelConfTypeDef Dac_Config;
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void DAC1_Init(void)
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{
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DAC_Handler.Instance=DAC1;
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HAL_DAC_Init(&DAC_Handler);
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Dac_Config.DAC_Trigger=DAC_TRIGGER_NONE;
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Dac_Config.DAC_OutputBuffer=DAC_OUTPUTBUFFER_DISABLE;
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HAL_DAC_ConfigChannel(&DAC_Handler,&Dac_Config,DAC_CHANNEL_1);
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HAL_DAC_Start(&DAC_Handler,DAC_CHANNEL_1);
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}
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void HAL_DAC_MspInit(DAC_HandleTypeDef* hdac)
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{
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GPIO_InitTypeDef GPIO_Initure;
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Dac_RCC_Clk();
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Dac_GPIO_Clk();
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GPIO_Initure.Pin = Dac_Pin;
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GPIO_Initure.Mode=GPIO_MODE_ANALOG;
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GPIO_Initure.Pull=GPIO_NOPULL;
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HAL_GPIO_Init(Dac_Port,&GPIO_Initure);
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}
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const uint16_t Sine12bit[32] = {
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2048 , 2460 , 2856 , 3218 , 3532 , 3786 , 3969 , 4072 ,
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4093 , 4031 , 3887 , 3668 , 3382 , 3042 , 2661 , 2255 ,
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1841 , 1435 , 1054 , 714 , 428 , 209 , 65 , 3 ,
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24 , 127 , 310 , 564 , 878 , 1240 , 1636 , 2048
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};
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uint32_t DualSine12bit[32];
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void Dac_Is_XuanBo()
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{
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uint32_t Idx = 0;
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float temp = 0.0;
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uint16_t data;
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for (Idx = 0; Idx < 32; Idx++)
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{
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DualSine12bit[Idx] = (Sine12bit[Idx] << 16) + (Sine12bit[Idx]);
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HAL_DAC_SetValue(&DAC_Handler,DAC_CHANNEL_1,DAC_ALIGN_12B_R, DualSine12bit[Idx]);
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data = HAL_DAC_GetValue(&DAC_Handler,DAC_CHANNEL_1); //<2F><>ȡͨ<C8A1><CDA8>1<EFBFBD><31><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ
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temp=(float)data * (3.3/4096);
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printf("\r\n DAC output voltage = %f V \r\n", temp);
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}
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}
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