ADC_MSP 初始化:包括初始化 ADC 的时钟、GPIO 引脚、 DMA 和 NVIC 相关的设置;(STM32BubeMX 自动生成代码HAL_ADC_MspInit()) 校准!使用前务必校准!; (大部分型号需要我们在程序中自己调用代码,某些型号不需要校准,后面会说明HAL_ADCEx_Calibration_Start()) 启动ADC 转换; (我们在程序中
ADC range = 4096nA, SPO2 sample rate (100 Hz), LED pulseWidth (400uS) max30102_Bus_Write(REG_LED1_PA,0x24); //Choose value for ~ 7mA for LED1 max30102_Bus_Write(REG_LED2_PA,0x24); // Choose value for ~ 7mA for LED2 max30102_Bus_Write(REG_PILOT_PA,0x7f); // Choose ...
AN2834 Application note How to optimize the ADC accuracy in the STM32 MCUs Introduction STM32 MCUs embed advanced 12-bit to 16-bit ADCs depending on the device. A self- calibration feature is provided to enhance ADC accuracy versus environmental condition changes. In applications involving...
1. Calibration prerequisite: ADC must be disabled (execute this function before HAL_ADC_Start() ...
ADC CAlibration LL_ADC_StartCalibration(ADC1, LL_ADC_DIFFERENTIAL_ENDED); // Wait ADC Calibration while ( LL_ADC_IsCalibrationOnGoing(ADC1) ); Wait_Time = 50; while( Wait_Time ); // Enable ADC LL_ADC_Enable(ADC1); // Wait to Start ADC while ( LL_ADC_IsActiveFlag_ADRDY(ADC1) ...
12-bit ADC 1 Msps up to 40 channels 12-bit DAC 2 ch with output buffers 2x ultra-low-power comparators(window mode and wake up capability) DMA controller 12x channels 11x peripheral communication interfaces 1x USB 2.0 (internal 48 MHz PLL) ...
calibration – Internal 16 MHz RC with PLL option (±1 %) – Internal 32 kHz RC oscillator (±5 %) • Up to 44 fast I/Os – All mappable on external interrupt vectors – Multiple 5 V-tolerant I/Os • 5-channel DMA controller with flexible mapping • 12-bit, 0.4 µs ADC ...
例如,温度传感器可把温度量转化成电压信号量输出,且温度值与电压值成比例关系,我们只要使用ADC测量出电压值,并根据转换关系即可求得实际温度值。而前文提到的陀螺仪、加速度及磁场传感器也是类似的,它们检测的角速度、加速度及磁场强度与电压值有确定的转换关系。
厂商: STMICROELECTRONICS(意法半导体) 封装: UFQFPN-48_7X7MM-EP 描述: Arm®Cortex®-M4 32位MCU+FPU、105 DMIP、256KB闪存/64KB RAM、11个TIM、1个ADC和11个通信接口 数据手册:下载STM32F401CCU6.pdf立即购买 数据手册 价格&库存 STM32F401CCU6 数据手册 STM32F401xB STM32F401xC Arm® Cortex®...
12-bit ADC 1.14 Msps up to 16 channels (down to 1.65 V) 2x ultra-low-power comparators (window mode and wake up capability, down to 1.65 V) 7-channel DMA controller, supporting ADC, SPI, I2C, USART, Timers, AES Up to 10x peripheral communication interfaces ...