最后进入 while 循环,调用 KEY_Scan 函数,不断检测 K_UP 和 K_DOWN 按键是否按下,如果 K_UP 按键按下,调用 DAC_SetChannel1Data 函数增加 DAC1的输入值;如果 K_DOWN 按键按下,调用 DAC_SetChannel1Data 函数减小 DAC1的输入值。间隔 500ms 调用 DAC_GetDataOutputValue 函数读取 DAC1 最后一次的输入值,...
static void dac_value_set(uint16_t vol) { uint16_t dac_reg_value; dac_reg_value = vol*4096.0/3300; #if defined (GD32F10X_HD)||(GD32F20X_CL)||(GD32F30X_HD)||(GD32F4XX)||(GD32E10X) dac_data_set(DAC0,DAC_ALIGN_12B_R,dac_reg_value); #elif defined (GD32F350) dac_d...
{for(mydac_value =4095; mydac_value >0; mydac_value--) {HAL_DAC_SetValue(&hdac,DAC_CHANNEL_2,DAC_ALIGN_12B_R,mydac_value);HAL_Delay(1); }for(mydac_value =0; mydac_value <4095; mydac_value++) {HAL_DAC_SetValue(&hdac,DAC_CHANNEL_2,DAC_ALIGN_12B_R,mydac_value);HAL_Dela...
uint8_t dacvalue = 0;uint8_t wavetype = 0;uint16_t wavestep = 0;uint8_t sinvalues[91] = {0,4,9,13,18,22,27,31,35,40,44,49,53,57,62,66,70,75,79,83,87,91,96,100,104,108,112,116,120,124,127,131,135,139,143,146,150,153,157,160,164,167,171,174,177,180,183,...
DMA_InitStructure.DMA_MemoryBaseAddr = (u32)&FIR_OutPutValueTab; DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralDST; DMA_InitStructure.DMA_BufferSize = 200; DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable; DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable; ...
TENx:DAC通道x触发使能,用来使能/关闭DAC通道x的触发。 0:关闭DAC通道x触发,写入DAC_DHRx寄存器的数据在1个APB1时钟周期后传入 DAC_DORx寄存器;1:使能DAC通道x触发,写入DAC_DHRx寄存器的数据在3个APB1时钟周期后传入 DAC_DORx寄存器。注意:如果选择软件触发,写入寄存器DAC_DHRx的数据只需要1个APB1时钟周期就可...
HAL_DAC_SetValue(&hdac,DAC_CHANNEL_2,DAC_ALIGN_12B_R,mydac_value); HAL_Delay(1); } /* USER CODE END WHILE */ /* USER CODE BEGIN 3 */ } 直接上一下波形图: 上面的图形,有个小小的疑问,按理来说,从 0 ~ 3.3V 需要的时间 4095 ms ,4s 多,但是实际上花的时间比这多得多(5s 一个格...
printf("---now DacValue is: %d---\r\n", DacValue); DacValue +=500; if(DacValue>4095) DacValue=4095; HAL_DAC_SetValue(&hdac,DAC_CHANNEL_1,DAC_ALIGN_12B_R,DacValue); while(!HAL_GPIO_ReadPin(KEY2_GPIO_Port,KEY2_Pin)); ...
divided into four categories: monitoring, control, optimization and automation. Each type of feature has its own meaning and lays the foundation for the next stage of functionality. For example, monitoring functions are the basis for control, optimization, and automation. To achieve customer value ...
赋予PC和PS4高保真游戏音频 搭载发烧级的ESS Sabre DAC,为音质提供保障 为游戏而生,经Hi-Res认证,可支持96 kHz / 24-bit音频 priceUS$149.99 Unfortunately, we do not currently ship to China. Pleaseselect another country or region. 是时候为你的耳机带来提升了 ...