pid-discreto

用VC进行单片机的串口通讯，并进行数据采集，进行处理以后在PC端显示(VC MCU for serial communication, and data collection, processing beyond the PC to display)

混沌电路设计思路课件！！！！！！！！！！！！！！！(Chaotic circuit design software! ! ! ! ! ! ! ! ! ! ! ! ! ! !)

STC15W4K56S4 4串口均已初始化，可正常使用。(STC15W4K56S4 four uarts.)

循环冗余校验16位的，c语言编程环境，能够正常运行，程序详细注释(16 bit cyclic redundancy check, C language programming environment, normal operation, procedures detailed notes)

灯光协议的DMX12 的源代码，单片机编写(mifare)

PT2314，音频通道4选1输出，有重低音、mute功能。(PT2314, audio channel 4 to 1 output, heavy bass, mute function.)

利用28335自带的ADC采集两路模拟正弦信号，用DMA方式将采样值写入内存，用epwm控制采样周期。利用FFT求得两路正弦信号的相位差。(Sampling two analog sinusoidal signals, write them to the memory by DMA controller. The sampling period is controlled by the EPWM module. Calculate the phase difference by FFT method.)

Microchip公司的MCP4728是一个带有非易失性存储器(EEPROM)的四路、12位电压输出的数模转换器(DAC)，STC15系列单片机实现12位多路DAC数模转换程序。(Quad-channel, 12-bit, non-volatile, voltage ouput DAC with EEPROM, internal Vref and I2C interface. AEC-Q100 qualified.)

说明：  实现串口1接受发送功能,接受和发送的波特率均为115200.使用多种接受发送模式，有自定义函数接受发送，有映射到C语言的printf发送数据，和scanf函数的映射接受字符串的功能。(make the usart1 work in stm32f103zet6,the program can make the urat receive the data at the boudrate 115200 ,send the data use the "printf" in C lib.)

实验方法: 1写flash 烧flash的时候采用默认的配置 2然后在JTAG方式下面调试 按key1 key 2 3 4 发光管亮灭(Experimental methods: 1 write flash burn flash when using the default configuration of 2 and then in the JTAG debug mode by following key1 key 2 3 4 LED light out)