Drawable_ConstantStateTest

本包是汤竞南版的51单片机c语言开发与实例，其中包括pdf版的书，和对应书中源码例子，对学习c51开发的初学者很有用。(This package is a version of the 51 Southern Tang King SCM c language and examples, including the pdf version of the book, the book and the corresponding source code examples for beginners learning c51 develop useful.)

使用一个MEGA8开发USB伺服控制器！~ 内容完善，很有借鉴意义(Developed using a USB servo controller MEGA8! ~ Content perfect, great reference)

内容：1、本程序用于测试4相步进电机常规驱动 2、需要用跳帽或者杜邦线把信号输出端和对应的步进电机信号输入端连接起来 3、速度不可以调节的过快，不然就没有力矩转动了 4、按s4（设置成独立按键模式）可以控制正反转 (Content: This program is used to test the four-phase stepper motor conventional drive 2, you need to jump the caps or the DuPont line signal output and the corresponding stepper motor signal input to connect, the speed can not be adjusted too fast. otherwise there is no torque rotation, set individual keys by s4 () can control the reversing)

SDL2_image-2.0.0开发包，方便大家使用(SDL2_image-2.0.0 Development Kit to facilitate the use)

asm_best_practices，学习asm很好的资料，经典实践学习，可下载学习参考(asm_best_practices, very good information to learn asm, classical experiential learning, downloadable learning information)

说明：  MSP430相关工具内含 MSP430BSL下载器，430波特率计算器，C430编译器的诊断信息等等(MSP430 related tools include MSP430BSL downloader, 430 baud rate calculator, diagnostic information of C430 compiler and so on.)

NRF82532看门狗程序，能很好的保证单片机系统正常工作，性能十分可靠。(The NRF82532 watchdog program can ensure the normal operation of the single chip microcomputer system and its performance is very reliable.)

说明：  1.44寸显示屏显示资料，可显示汉字，图片，彩色图片，带取模软件(1.44-inch display screen display data, can display Chinese characters, pictures, color pictures, with the module software)

说明：  自主学习PIC芯片，此书主要讲PIC16F877(Self-learning PIC chip, this book mainly talks about PIC16F877)

RS485和232的转换电路 带隔离的转换电路 RS485和232的转换电路 带隔离的转换电路(RS485 and 232 exchange cercuit with isolated RS485 and 232 exchange cercuit with isolated)