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7620
飞思卡尔的风单片机源程序,希望有帮助哦,记得好好刊登在用看(Freescale wind microcontroller source code, hope helpful Oh, I remember the good published in see)
- 2013-01-23 01:39:23下载
- 积分:1
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C-language-control-method
这是一份控制方法的C语言实现文档,写的非常好,分享给大家,特别是PID算法,说的还蛮好的(This is a method of controlling the C language document, written in a very good, for everyone to share, particularly in the PID algorithm, that s quite good)
- 2016-01-03 19:13:20下载
- 积分:1
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ZYCainiao_sch_pcb
自己画的四轴飞行器,原理图,pcb。。。。。。。。。。。。。。。。。。。。。。。为了20个子,我真的不容易(Own painting Four aircraft, schematics, pcb)
- 2013-09-22 16:23:55下载
- 积分:1
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cheng
滤波器广泛应用于数字信号处理、通信、自动控制领域,但设计可变宽频带有源滤波器则比较困难。利用单片机控制参数可编程的双二阶通用开关电容有源滤波器,精确设置有源滤波器的中心频率f,品质因数Q及有源滤波器的工作方式。本系统主要分为两个部分:即程控滤波器和程控放大器。程控放大器电压增益为40dB,通过单片机控制DA进行分压,可精确实现要求的10dB步进,误差小于0.5 ,通带为100Hz-500KHz,输入电压峰-峰值范围为10mV,在输入范围内无明显失真。由MAX264为核心的滤波器,可设置为高通、低通滤波器。通过单片机直接给出控制频率,使-3dB截止频率在1KHz-20KHz内可调,步进1KHz,误差小于1 。整个系统以52单片机为控制核心,电路简单,性能稳定,且具有较高精度,滤波参数调节通过单片机控制,较为方便。(Filters are widely used in digital signal processing, communications, automatic control area, but the design variable wideband active filter is more difficult. Control parameters using single-chip programmable universal switched-capacitor biquad active filter, active filter accurately set the center frequency f, quality factor Q and the active filter works. The system is mainly divided into two parts: the program-controlled filters and programmable amplifiers. Programmable amplifier voltage gain of 40dB, the DA through the partial pressure of single-chip control, can accurately achieve the required 10dB step, the error is less than 0.5 , passband to 100Hz-500KHz, input voltage peak- the range of 10mV, the input range no significant distortion. By the MAX264 as the core of filter can be set to high pass, low pass filter. Given directly by the microcontroller controls the frequency, the-3dB cutoff frequency at 1KHz-20KHz adjustable, step 1KHz, error is less than 1 . The entire system for)
- 2011-07-17 16:23:27下载
- 积分:1
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FontGen2
点阵字体产生工具以及相关显示函数。
在开发嵌入式系统时,需要显示不同大小或类型字体的汉字。显然,对于嵌入式系统,不太可能使用矢量字体,而点阵字体,不同大小的字体不能简单的缩放。 另外,对一个小系统,也不需要完整的字体,往往只要几十个,甚至几个就够了。
一般,我们采用的方法是,自己准备点阵字体的数据,在显示汉字时,把这些数据写入显存就行了。 这时又存在另外一个问题,由于是不完整的字库,不能简单的用汉字的内码去找到对应的字体数据,如果逐个比较,又费时间。比较好的方法就是把字体数据排序,用二分法查找,这样可以大大提高查找效率。
这里为以上问题提供了一个完整的解决方案:
产生字体数据:指定字体类型、大小,自动产生字体数据。
字体数据排序:可以按Unicode,也可以按Ansi排序。
集成显示函数:提供相关显示函数。为了节省空间,我们把文字分成thin和wide两种,前者用于显示传统的ASCII字符集,后者用于显示汉字等多(双)字节字符
()
- 2020-06-30 09:20:02下载
- 积分:1
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wlanapi
Use wlanapi control wireless LAN, wifi network via a callback method to achieve the hollow port scanning and data analysis, including the ssid bssid
- 2014-10-23 05:44:40下载
- 积分:1
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firework_program
此程序例子是以C语言编写的一种实现烟花音乐效果的程序(The fire_work program example is written in C language to achieve a fireworks music program)
- 2017-03-14 14:30:07下载
- 积分:1
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1602-clock
利用单片机进行时钟的设计,并且用1602液晶显示(
The use of MCU clock design, and liquid crystal display with 1602)
- 2016-03-21 17:34:19下载
- 积分:1
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zhe-ren-yi-biao
车辆CAN总线的实时监测的电池容量,剩余容量,电压,电流和警报的其他参数(Vehicles can bus for real-time monitoring of battery capacity, remaining capacity, voltage, current and other parameters of the alarm)
- 2014-10-09 21:46:56下载
- 积分:1
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STC-MCU-10-11-12C5A-GUIDE
能够非常完美的在LED上显示漂亮的汉字和英文字母,很好啊(Can be perfectly nice in the LED display of Chinese characters and English letters, ah well)
- 2011-06-09 14:35:58下载
- 积分:1