QT连接MySql的数据库查询

touchsceen_test ├─ main.c C语言主源文件 ├─ AscII6x8.c Ascii字符6x8点阵显示格式数据 ├─ lcd.c LCD显示函数源文件 ├─ lcd.h LCD定义头文件 ├─ Call_int.s 中断处理文件 ├─ tp.c 触摸屏控制函数源文件 └─ tp.h 触摸屏控制定义头文件-touchsceen_test East main.c C-language source East Main-AscII6x8.c Ascii character dot matrix display delivers data format and technology-lcd.c LCD display function source East-definition LCD lcd.h headers East-Call_int.s interrupt handling documents and technology-tp.c Touchscreen control function-source supply tp.h Touchscreen Control definition files

函数发生器是一种在科研和生产中经常用到的基本波形产生器，集成函数 波形发生器一般都采用ICL8038或5G8038，而它们只能产生300kHz以下的中低频正弦波、矩形波和三角波，且频率与占空比不能单独调节，从而给使用带来很大不便。本文介绍由LM324和稳压管组成的低频函数波形发生器，该电路能够产生正弦波、方波和三角波信号，频率能以10Hz的间隔在20Hz～20KHz范围内调整。-Function Generator is a scientific research and production often use the basic waveform generator, integrated function waveform generator usually used ICL8038 or 5G8038, and they only have a 300kHz following the low-frequency sine wave, square wave and triangular wave, and frequency and duty cycle alone is not regulated, so as to enable using bring a lot of inconvenience. This paper introduces the LM324 voltage regulator tubes, and the low-frequency waveform generator function, the circuit can produce sine, square and triangular wave signal frequencies of 10Hz to 20Hz at intervals within ~ 20KHz adjustment.

keil c开发使用的启动代码说明。--Manual for the startup code developed by keil c.

压缩包中含有DS10B20,JM12864液晶模块的资料,以及DS18B201有LCD显示温度的2个KEIL C程序.和电路原理图.-Compressed packet contains DS10B20, JM12864 LCD modules, as well as information DS18B201 has LCD temperature display 2 KEIL C procedures. And circuit schematics.

uClinux下的CAN总线控制器驱动程序源代码-uClinux under the CAN bus controller driver source code

arm7开发板音频测试,开发板芯片为s3c44b0x，音频芯片为cs4334-audio test in arm7（s3c44b0x）

这是关于嵌入式编程的一本关于应该注意什么样的问题的小册子，此时前辈的经验精华，好好消化：）-on embedded programming on the one should pay attention to what kind of the booklet, now experience the essence of the older generation, properly digest :)

STM32F103定时器TIM2测试及仿真，Keil工程文件。可在调试模式下观察到定时中断产生1ms的方波。

FANUC_B-63983EN-02_30i_31i_32i_PMC用户手册，FANUC Series 30*/300*/300*s-MODEL A，FANUC Series 31*/310*/310*s-MODEL A5，FANUC Series 31*/310*/310*s-MODEL A，FANUC Series 32*/320*/320*s-MODEL A PROGRAMMING MANUAL

一个printf的实现源代码，包括对浮点数等到字符串的格式化，与平台无关，可以方便在嵌入式中使用。-Printf realization of a source code, including the float until the string format, with platform-independent, it will be convenient to use in the embedded.