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MCUAD
- 本音频信号分析仪由32位MCU为主控制器,通过AD转换,对音频信号进行采样,把连续信号离散化,然后通过FFT快速傅氏变换运算,在时域和频域对音频信号各个频率分量以及功率等指标进行分析和处理,然后通过高分辨率的LCD对信号的频谱进行显示。该系统能够精确测量的音频信号频率范围为20Hz-10KHz,其幅度范围为5mVpp-5Vpp,分辨力分为20Hz和100Hz两档。测量功率精确度高达1 ,并且能够准确的测量周期信号的周期,是理想的音频信号分析仪的解决方案。-The audio signal ana
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- 利用MSP430 2618 实现ADC12 模拟信号采样 转换成数字信号 单通道单次采样-Using MSP430 2618 to achieve ADC12 analog signal into digital signal sampling a single channel sampling
HRMeter
- :热电阻在工业生产中常用于中低温区测温,是温度测量中应用较为普遍的测温元件.通过对其测 温原理的研究,设计了基于MSP430FI69单片机的热电阻测温仪.本设计采用恒流源驱动三线制热电 阻,配合信号平移、放大电路,利用片内A/D转换器,通过分时采样将热电阻对应的电压信号采集进来. 经过一阶插值拟合运算程序处理后显示温度值并由D/A转换器输出电压信号,再经过V-1变换实现 4—20 mA变送输出功能.-: Thermal resistance often used in indus
demoATD
- 是基于飞思卡尔的MC9S12XS128的嵌入式系统的模拟信号采样的实用小程序。-It is based on the practical small the Freescale embedded systems MC9S12XS128 analog signal sampling procedures.
main
- 单片机msp430,AD采样和DA输出级联,实现在输出端实时输出采样信号-Microcontroller msp430, AD sampling and DA output cascade to achieve the real-time output sampling signal at the output
main
- 单片机msp430,TImerA技术模式中断控制DA输出正弦信号,通过改变采样点数,可任意控制采样输出信号频率,采样间隔等-Microcontroller wireless network and I MSP430-TImerA mode interrupt control DA output sinusoidal signal, sampling the output signal frequency by changing the number of samples can be arbit
BMS
- 基于mega16 开发的 电池管理系统,12864 显示菜单,八路四组AD采样,电池内阻频率发生器,读取反馈信号测试电池内阻,IGBT控制充电。-Mega16 development based on a battery management system, 12864 display menu, eight four AD sampling, the battery internal resistance frequency generator, read the feedback signa
relay_pic16f874
- PIC16F874典型应用,多路数字量输入/输出,2路PWM输出用于直流电机调速,模拟量A/D采样,所有信号的控制通过RS232与上位机通讯-PIC16F874 Typical applications, multi-channel digital input/output, 2-way PWM output for DC motor speed, analog A/D sampling, all signal control through RS232 and host computer co