led_on_c

测量频率的低电平保持时间，用来测量汽车喷油嘴喷油的时间，单位ms(The low level holding time of measuring frequency is used to measure the injection time of automobile nozzle, unit Ms.)

说明窗函数为无限宽时，STFT无时域的定位功能；(Note when the window function for the infinitely wide, STFT positioning without time-domain function )

keil C51 环境下 C语言编程 中直接输入二进制的头文件(Direct Input of Binary Header File in C Language Programming under Keil C51 Environment)

J1939 protocol description

can kao shouce (can kao shou ce )

飞思卡尔智能车竞赛11年完整版程序，速度可上2.7m/s(freescale )

STM32的FSMC驱动的LCD代码，LCD驱动IC为ILI9341，实现的功能包括了画点、画线、画圆、画矩形、显示图片、显示字符和显示汉字等。(The STM32 FSMC driven LCD code, LCD driver IC is ILI9341, functions implemented include painting, drawing a line, circle, draw a rectangle, display pictures, display characters and display Chinese characters.)

说明：  单片机处理信号的自动聚焦系统，利用单片机控制光学镜头，实现自动聚焦功能(Single-chip signal processing of the auto-focus system, the use of single-chip microcomputer controlled optical lens, to achieve auto-focus function)

MPU6050传感器的六轴姿态解算算法代码(Six-Axis Attitude Solution Algorithmic Code for MPU6050 Sensor)

说明：  利用STM32F106RET6的串口1发送字节或数据(STM32F106 com comunication)