通讯

protel LIB 原理图库文件，包含常用元件及stc单片机元件图。(protel LIB)

说明：  单片机的串口通讯，可以实现单片机与单片机间，单片机与PC机间的串口通讯(Serial communication between single-chip computer and single-chip computer and between single-chip computer and PC can be realized by serial communication between single-chip computer and single-chip computer.)

说明：  spi模拟i2s，实现音频播放，网上的参考，不易找到，供大家分享(spi simulation i2s, for audio playback, online reference, easy to find for people to share)

在下的毕业设计，　　　本题要求设计一个直流电机控制系统。在设计中，采用国产单片机中目前比较新式的STC12C5A60S2作为整个控制系统的控制电路的核心，因为STC12C5A60S2内部有PCA模块，可以产生PWM波形；采用带中断的独立式键盘作为命令的输入，每当按键时蜂鸣器响；配以LCD12864显示实现对带光码盘的直流电动机转速参数的测量、显示和控制。LMD18200驱动模块内部是H型驱动电路，驱动能力较强，完成电机正反转以及速度的控制。为优化直流电机的响应，采用PID反馈，实现闭环控制。(Graduation in the next, and that the requirements to design a DC motor control system. In the design, the use of the relatively new domestic microcontroller as a control circuit of STC12C5A60S2 entire control system core, because STC12C5A60S2 internal PCA module can generate PWM waveforms using a separate keyboard with interrupt input as a command, whenever the button When the buzzer sounds accompanied LCD12864 display realize the measurement of the optical encoder with DC motor speed parameters, display and control. LMD18200 internal drive module is H-drive circuit, driving ability, and the speed of completion of the motor reversing control. In order to optimize the response of DC motor, using PID feedback, closed loop control.)

ADC source codes for stm32F2

Test case 241395768 : 1357 3, This is performed three times And for each iteration 9 is performed thrice.

485总线通信，中断发送接收，可以发送字符串(485 communication)

MICRO 830 AND 4M DRIVE MODBUS COMMUNICATION

这是MP085传感器的资料，资料齐全，有需要的可以下载哦(This is the data of MP085 sensor. The data is complete. You can download it if you need it.)

the file includes several examples of the code composer studio source for verification