vol = value * REFER_VOLTAGE / CONVERT_BITS;rt_kprintf("the dac voltage is :%d.%02d \\n", vol /100, vol %100);rt_thread_mdelay(100); value =rt_adc_read(dev_adc, DEV_ADC_CHANNEL); vol = value * REFER_VOLTAGE / CONVERT_BITS;rt_kprintf("the adc voltage is :%d.%02d \\n", ...
代表0~3.3V * @retval 无 */ void dac_set_voltage(uint8_t outx, uint16_t vol) { double temp = vol; temp /= 1000; temp = temp * 4096 / 3.3; if (temp >= 4096)temp = 4095; /* 如果值大于等于4096, 则取4095 */ if (outx == 1) /* 通道1 */ { /* 12...
atomic_t use_count;structirq_chip subirq_chip;intsubirq_base;structiio_subirq subirqs[CONFIG_IIO_CONSUMERS_PER_TRIGGER]; unsignedlongpool[BITS_TO_LONGS(CONFIG_IIO_CONSUMERS_PER_TRIGGER)];structmutex pool_lock;boolattached_own_device; }; struct iio_trigger_ops是一个触发器的操作函数集,包括: ...
In addition to the SAR and DACr the MAX195 includes a serial interface, a sampling comparator used by the SAR ten cHihation DACs, and control logic for calibration and conversion.The DAC consists of an array of 16 capjcitos with binary weighted value 24、s plus one ,'dummy LSB" ...
ASC0208是一颗USB音频DAC解码芯片,输出立体声左右声道音频(Stereo Audio)。 采用免晶振设计,无需外部晶振。 内部具有双声道高解析DAC,音频采样率24bit/48kHz。 内建麦克风ADC及麦克风前置放大器(MIC Booster)。 二、特点 1、集成度高,极少的外围元器件。
5. HAL_DAC_GetValue函数 DAC读取通道输出值函数,其声明如下: AI检测代码解析 uint32_t HAL_DAC_GetValue(DAC_HandleTypeDef *hdac, uint32_t Channel); 1. 函数描述:获取所选DAC通道的最后一个数据输出值。 函数形参:形参1是DAC_HandleTypeDef结构体类型指针变量。 ...
Reference (V)— Reference voltage 1 (default) | real scalar Bias (V)— Bias voltage added to output 0 (default) | real scalar Settling time (s)— Time required for output to settle 0.25/1e-6 (default) | nonnegative real scalar Settling time tolerance (LSB)— Tolerance for calculating ...
使用KEY1/KEY_UP两个按键,控制STM32内部DAC的通道1输出电压大小,然后通过ADC1的通道19采集DAC输出的电压,在LCD模块上面显示ADC采集到的电压值以及DAC的设定输出电压值等信息。也可以通过usmart调用dac_set_voltage函数,来直接设置DAC输出电压。LED0闪烁,提示程序运行。 ...
digital-to-analog converter (DAC) • Low Power Operation that can operate from a single +2.7V to 5.5V supply • Rail-to-Rail Voltage Output and consumes just 175 μA of current at 3.6 Volts. The on-chip output amplifier allows rail-to-rail output • Power-on Reset to Zero Volts...
value(); //读取ADC采样值 voltage = (2.5*adc_value/4096; /将采样值转换为(单位V) printf("ADC采样值: %d\r\n",adc_value); //串口打印上传的采集的原始值 printf("采样值对应的电压:%.2fV\r\n",voltage);//串口打印ADC采样 delayms(200); //延时200ms,方便观察数据 led_toggle...