The LPC4350/30/20/10 are ARM Cortex-M4 based microcontrollers for embeddedapplications. The ARM Cortex-M4 is a next generation core that offers systemenhancements such as low power consumption, enhanced debug features, and a highlevel of support block integration.The LPC4350/30/20/10 operate at CPU frequencies of up to 150 MHz. The ARMCortex-M4 CPU incorporates a 3-stage pipeline, uses a Harvard architecture withseparate local instruction and data buses as well as a third bus for peripherals, andincludes an internal prefetch unit that supports speculative branching. The ARMCortex-M4 supports single-cycle digital signal processing and SIMD instructions. Ahardware floating-point processor is integrated in the core.The LPC4350/30/20/10 include an ARM Cortex-M0 coprocessor, up to 264 kB of datamemory, advanced configurable peripherals such as the State Configurable Timer (SCT)and the Serial General Purpose I/O (SGPIO) interface, two High-speed USB controllers,Ethernet, LCD, an external memory controller, and multiple digital and analog peripherals
上傳時間： 2013-10-28
上傳用戶：15501536189
The NXP LPC315x combine an 180 MHz ARM926EJ-S CPU core, High-speed USB 2.0OTG, 192 KB SRAM, NAND flash controller, flexible external bus interface, an integratedaudio codec, Li-ion charger, Real-Time Clock (RTC), and a myriad of serial and parallelinterfaces in a single chip targeted at consumer, industrial, medical, and communicationmarkets. To optimize system power consumption, the LPC315x have multiple powerdomains and a very flexible Clock Generation Unit (CGU) that provides dynamic clockgating and scaling.The LPC315x is implemented as multi-chip module with two side-by-side dies, one fordigital fuctions and one for analog functions, which include a Power Supply Unit (PSU),audio codec, RTC, and Li-ion battery charger.
上傳時間： 2014-01-17
上傳用戶：Altman
This book evolved over the past ten years from a set of lecture notes developed while teaching the undergraduate Algorithms course at Berkeley and U.C. San Diego. Our way of teaching this course evolved tremendously over these years in a number of directions, partly to address our students' background (undeveloped formal skills outside of programming), and partly to reect the maturing of the eld in general, as we have come to see it. The notes increasingly crystallized into a narrative, and we progressively structured the course to emphasize the ?story line? implicit in the progression of the material. As a result, the topics were carefully selected and clustered. No attempt was made to be encyclopedic, and this freed us to include topics traditionally de-emphasized or omitted from most Algorithms books.
標(biāo)簽： Algorithms 算法
上傳時間： 2013-11-11
上傳用戶：JamesB
簡單電子琴的51單片機程序 #include<reg51.h> //包含51單片機寄存器定義的頭文件 sbit P14=P1^4; //將P14位定義為P1.4引腳 sbit P15=P1^5; //將P15位定義為P1.5引腳 sbit P16=P1^6; //將P16位定義為P1.6引腳 sbit P17=P1^7; //將P17位定義為P1.7引腳 unsigned char keyval; //定義變量儲存按鍵值 sbit sound=P2^0; //將sound定義為P2.0 unsigned int C; //全局變量，儲存定時器的定時常數(shù) unsigned int f; //全局變量，儲存音階的頻率 //以下是C調(diào)低音的音頻宏定義 #define l_dao 262 //將“l_dao”宏定義為低音“1”的頻率262Hz #define l_re 294 //將“l_re” 宏定義為低音“2”的頻率294Hz #define l_mi 330 //將“l_mi” 宏定義為低音“3”的頻率330Hz #define l_fa 349 //將“l_fa” 宏定義為低音“4”的頻率349Hz #define l_sao 392 //將“l_sao”宏定義為低音“5”的頻率392Hz #define l_la 440 //將“l_la” 宏定義為低音“6”的頻率440Hz #define l_xi 494 //將“l_xi” 宏定義為低音“7”的頻率494Hz //以下是C調(diào)中音的音頻宏定義 #define dao 523 //將“dao”宏定義為低音“1”的頻率Hz #define re 587 //將“re” 宏定義為低音“2”的頻率Hz #define mi 659 //將“mi” 宏定義為低音“3”的頻率Hz #define fa 698 //將“fa” 宏定義為低音“4”的頻率Hz #define sao 784 //將“sao”宏定義為低音“5”的頻率Hz #define la 880 //將“la” 宏定義為低音“6”的頻率Hz #define xi 988 //將“xi” 宏定義為低音“7”的頻率Hz
上傳時間： 2013-11-09
上傳用戶：tian126vip
解壓包包含了C語言入門經(jīng)典教程和Visuak c++軟件 【基本簡介】 Visual C++是一個功能強大的可視化軟件開發(fā)工具。自1993年Microsoft公司推出Visual C++1.0后，隨著其新版本的不斷問世，Visual C++已成為專業(yè)程序員進行軟件開發(fā)的首選工具。 雖然微軟公司推出了Visual C++.NET(Visual C++7.0)，但它的應(yīng)用的很大的局限性，只適用于Windows 2000,Windows XP和Windows NT4.0。所以實際中，更多的是以Visual C++6.0為平臺。 Visual C++6.0不僅是一個C++編譯器，而且是一個基于Windows操作系統(tǒng)的可視化集成開發(fā)環(huán)境（integrated development environment,IDE）。Visual C++6.0由許多組件組成，包括編輯器、調(diào)試器以及程序向?qū)ppWizard、類向?qū)lass Wizard等開發(fā)工具。 這些組件通過一個名為Developer Studio的組件集成為和諧的開發(fā)環(huán)境。 在Visual C++ 6.0 企業(yè)版的基礎(chǔ)上集成官方的SP6升級補丁制作而成！免序列號，安裝完即可使用，無需再打補?。? 【使用方法】 有些朋友反應(yīng)在安裝后出現(xiàn) "Error spawning error" 可以看看下面綠色軟件找到的一些解決方案： 點擊VC“TOOLS（工具）”—>“Option（選擇）”—>“Directories（目錄）”重新設(shè)置“Excutable Fils、include Files、Library Files、Source Files”的路徑。很多情況可能就一個盤符的不同（例如你的VC裝在C，但是這些路徑全部在D），改過來就OK了。
上傳時間： 2013-10-09
上傳用戶：hui626493
C語言函數(shù)大全，已包含絕大部分的函數(shù)。每個函數(shù)包含函數(shù)名，功能，用法，舉例，內(nèi)容詳盡。希望對大家有所幫助~~ 函數(shù)名: abort 功 能: 異常終止一個進程 用 法: void abort(void); 程序例: #include #include int main(void) { printf("Calling abort()\n"); abort(); return 0; /* This is never reached */ } 函數(shù)名: abs 功 能: 求整數(shù)的絕對值 用 法: int abs(int i); 程序例: #include #include int main(void) { int number = -1234; printf("number: %d absolute value: %d\n", number, abs(number)); return 0; }
上傳時間： 2013-12-06
上傳用戶：feifei0302
#include<reg51.h> unsigned char miao=0,fen=0,shi=0; unsigned char miao1=0,miao2=0; unsigned char fen1=0,fen2=0; unsigned char shi1=0,shi2=0;
上傳時間： 2013-11-04
上傳用戶：ruan2570406
飛思卡爾智能車的舵機測試程序 #include <hidef.h> /* common defines and macros */#include <MC9S12XS128.h> /* derivative information */#pragma LINK_INFO DERIVATIVE "mc9s12xs128" void SetBusCLK_16M(void) { CLKSEL=0X00; PLLCTL_PLLON=1; //鎖相環(huán)電路允許位 SYNR=0x00 | 0x01; //SYNR=1 REFDV=0x80 | 0x01; POSTDIV=0x00; _asm(nop); _asm(nop); while(!(CRGFLG_LOCK==1)); CLKSEL_PLLSEL =1; } void PWM_01(void) { //舵機初始化 PWMCTL_CON01=1; //0和1聯(lián)合成16位PWM； PWMCAE_CAE1=0; //選擇輸出模式為左對齊輸出模式 PWMCNT01 = 0; //計數(shù)器清零； PWMPOL_PPOL1=1; //先輸出高電平，計數(shù)到DTY時，反轉(zhuǎn)電平 PWMPRCLK = 0X40; //clockA 不分頻,clockA=busclock=16MHz;CLK B 16分頻:1Mhz PWMSCLA = 0x08; //對clock SA 16分頻,pwm clock=clockA/16=1MHz; PWMCLK_PCLK1 = 1; //選擇clock SA做時鐘源 PWMPER01 = 20000; //周期20ms； 50Hz; PWMDTY01 = 1500; //高電平時間為1.5ms; PWME_PWME1 = 1;
上傳時間： 2013-11-04
上傳用戶：狗日的日子
#include <reg51.h>#include <main.h>#include <interrupt.h> cs5460a應(yīng)用電路(含源程序)bit code table_odd_even_bit[16]={0,1,1,0,1,0,0,1,1,0,0,1,0,1,1,0}; extern uchar rs485_timeout,pointer_buf485;extern uchar rs485_buf[MAX_485_LEN];extern uchar idata spi_buf[MAX_SPI_LEN];extern uchar pointer_send,send_len; extern uchar count_1s;//extern uint count_2min;extern uint count_10s;extern uchar oper_len,send_offset,chk_sum,send_i;extern bit flag_send_data,flag_level,flag_drdy,flag_data_ok;
上傳時間： 2014-01-24
上傳用戶：heart_2007
//------------------------------------------------------------------------------------//此程序為ADC轉(zhuǎn)換程序，可以選擇向ADC0BUSY寫1或用定時器0,1,2,3作為ADC的啟動信號。////------------------------------------------------------------------------------------//頭文件定義//------------------------------------------------------------------------------------//#include <c8051f330.h> #include <stdio.h> //-----------------------------------------------------------------------------// 定義16位特殊功能寄存器//----------------------------------------------------------------------------- sfr16 ADC0 = 0xbd; sfr16 TMR0RL = 0xca; sfr16 TMR1RL = 0xca; sfr16 TMR2RL =0xca; sfr16 TMR3RL =0xca; sfr16 TMR0 = 0xCC; sfr16 TMR1 = 0xCC; sfr16 TMR2 = 0xcc; sfr16 TMR3 = 0xcc; //-----------------------------------------------------------------------------// 全局變量定義//-----------------------------------------------------------------------------char i;int result; //-----------------------------------------------------------------------------//定義常量//-----------------------------------------------------------------------------#define SYSCLK 49000000 #define SAMPLE_RATE 50000 //------------------------------------------------------------------------------------// 定義函數(shù)//------------------------------------------------------------------------------------void SYSCLK_Init (void);void PORT_Init (void);void Timer0_Init (int counts);void Timer1_Init (int counts);void Timer2_Init (int counts);void Timer3_Init (int counts);void ADC0_Init(void);void ADC0_ISR (void);void ADC0_CNVS_ADC0h(void);//------------------------------------------------------------------------------------// 主程序//------------------------------------------------------------------------------------ void main (void) { int ADCRESULT[50] ; int k; PCA0MD &= ~0x40; // 禁止看門狗 SYSCLK_Init (); PORT_Init (); Timer0_Init (SYSCLK/SAMPLE_RATE); //Timer1_Init (SYSCLK/SAMPLE_RATE); //選擇相應(yīng)的啟動方式 //Timer2_Init (SYSCLK/SAMPLE_RATE); //Timer3_Init (SYSCLK/SAMPLE_RATE); ADC0_Init(); EA=1; while(1) { //ADC0_CNVS_ADC0h(); k=ADC0; ADCRESULT[i]=result; //此處設(shè)斷點，觀察ADCRESULT的結(jié)果 } }
上傳時間： 2013-10-13
上傳用戶：SimonQQ
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