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Description: 设计一个正弦信号发生器，使用凌阳公司的16位单片机SPCE061A作为中央控制器，结合DDS芯片AD9850，产生0～15MHz频率可调的正弦信号,正弦信号频率设定值可断电保存；使用宽频放大技术，在50Ω负载电阻上使1K～10MHz范围内的正弦信号输出电压幅度VP-P=6V±1V；产生载波频率可设定的FM和AM信号；调制信号为1KHz的正弦波，调制信号的产生采用DDS技术，由CPLD和Flash ROM加上DAC进行直接数字合成；二进制基带序列码由CPLD产生，在100KHz固定载波频率下进行数字键控，产生ASK，PSK信号。-Design of a sinusoidal signal generator, the use of Sunplus 16-bit MCU SPCE061A as the central controller, combined with DDS chip AD9850, have adjustable frequencies 0 ~ 15MHz sinusoidal signal, sinusoidal signal frequency settings can be stored power using broadband amplification, in a 50Ω load resistor to 1K ~ 10MHz sinusoidal signal within the output voltage amplitude VP-P = 6V ± 1V generating the carrier frequency of the FM and AM can be set signal 1KHz sine wave modulation signal, modulated signal generation using DDS technology, coupled by the CPLD and Flash ROM DAC for direct digital synthesis binary baseband sequence code generated by the CPLD in a fixed carrier frequency 100KHz digital keying, resulting in ASK, PSK signals.
Platform: |
Size: 29696 |
Author: 王金 |
Hits:
Description:
=== === === === === === === === === === === === === === === =
Button_Test实验
=== === === === === === === === === === === === === === === =
本实验实现通过扩展IO来接收KEY1和KEY2的中断，并显示在超级终端上。本例程有两种运行方式。
Button_Test IN RAM 将程序下载到SDRAM中调试。
Button_Test IN Flash 将程序烧写到Nor Flash中。上电自动运行。
===========================================================================================
程序运行成功之后，
超级终端上将显示：
*******************************************************************
** 英蓓特EduKit系列嵌入式教学系统平台 **
** Embest EduKit Series Embedded Teaching Platform **
*******************************************************************
External Interrupt Test Example
此时用户可以按实验箱上的KEY1按钮和KEY2按钮来触发中断。如：
Eint0 interrupt occurred.
EINT1 interrupt occurred.-================================================== =========================================
Button_Test experiment
================================================== =========================================
Realize this experiment, by extension IO to receive KEY1 and KEY2 interrupt and displayed in HyperTerminal. There are two ways to run this routine.
Button_Test IN RAM will be downloaded to the SDRAM debugging.
Button_Test IN Flash program to be in Nor Flash. Power on automatically.
================================================== =========================================
After a successful run,
HyperTerminal displays:
*******************************************************************
Embest EduKit Series** embedded teaching system platform**
** Embest EduKit Series Embedded Teaching Platform**
*******************************************************************
External Interrupt Test Example
At this point the user can p
Platform: |
Size: 205824 |
Author: 张丹 |
Hits:
Description: List p=16f84
include "p16f84.inc"
Status equ 0x03
TrisA equ 0x85
TrisB equ 0x86
Porta equ 0x05
PortB equ 0x06
Start ORG 0x00
BSF 03,5 Go to page1 for setting-up the ports
MOVLW 00h Put 00 into W
MOVWF 05h Make all RA lines output
MOVWF 06h Make all RB lines output
BCF 03,5 Go to Page0 for programming
Flash MOVLW 0FFh Put 02 into W to
MOVWF 06h Reset the 4017
CALL DelA
MOVLW 00h
MOVWF 06h
CALL DelA
GOTO Flash
DelA DECFSZ 1Ah,1
GOTO DelA
DECFSZ 1Bh,1
GOTO DelA
RETURN
END-List p=16f84
include "p16f84.inc"
Status equ 0x03
TrisA equ 0x85
TrisB equ 0x86
Porta equ 0x05
PortB equ 0x06
Start ORG 0x00
BSF 03,5 Go to page1 for setting-up the ports
MOVLW 00h Put 00 into W
MOVWF 05h Make all RA lines output
MOVWF 06h Make all RB lines output
BCF 03,5 Go to Page0 for programming
Flash MOVLW 0FFh Put 02 into W to
MOVWF 06h Reset the 4017
CALL DelA
MOVLW 00h
MOVWF 06h
CALL DelA
GOTO Flash
DelA DECFSZ 1Ah,1
GOTO DelA
DECFSZ 1Bh,1
GOTO DelA
RETURN
END
Platform: |
Size: 1024 |
Author: Peke |
Hits:
Description: Miracl库包含100余个例程，涉及多倍精度运算（multiprecision arithmetic）的各个方面。定义了两种新的数据类型——表示大整数的big类型和表示有理数的flash（short for floating-slash）类型。大整数例程基于Knuth算法（在他的著作“The Art of Computer Programming”第四章中提出）。floating-slash（不固定斜杠？）算法基于圆整小数，最初由D.Matula和P.Kornerup提出。所有例程都针对速度和效率进行了全面的优化，同时也是标准的，可移植的C程序。另外，对于某些时间要求非常严格的算法，Miracl也针对流行的Intel 80x86系列处理器提供了汇编语言实现。Miracl还提供了C++接口。
Miracl的所有源代码都包含于此。-Miracl library contains more than 100 routines, involving multiple precision arithmetic (multiprecision arithmetic) in all its aspects. Defines two new data types- represents large integers big type and represent rational numbers flash (short for floating-slash) type. Knuth algorithm based on large integer routines (his book " The Art of Computer Programming" presented in chapter IV). floating-slash (not fixed slash?) algorithm based on rounding decimals, originally proposed by D.Matula and P.Kornerup. All routines are carried out for the speed and efficiency of a comprehensive optimization, but also standard, portable C program. In addition, for some time very demanding algorithms, Miracl also for the popular Intel 80x86 family of processors provides the assembler language. Miracl also provides C++ interface. Miracl all the source code are included here.
Platform: |
Size: 1534976 |
Author: 沈宇 |
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Description: 飞思卡尔 12xep100 P/D FLASH 操作范例-Freescale 12xep100 P/D FLASH operation example
Platform: |
Size: 2048 |
Author: 晚武 |
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Description: LA.MV9.P Driver board LED TV Flash fiel
Platform: |
Size: 11774976 |
Author: echo |
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Description: SH68F093, an 8-bit micro-controller, is designed for the high-performance and low-power RF mouse application. The micro- controller contains on-chip flash-type program 16K bytes ROM, internal 512 bytes RAM, two 8-bit base timers, a wake-up timer, a watch-dog timer, a DC-DC converter, a 1.8V regulator for μP core, built-in 8MHz RC resonator, POR/LVR reset, resume reset, programmable voltage comparator, and master/slave SPI interface.
Platform: |
Size: 549464 |
Author: simoon |
Hits: