priyambada2014

此为DDS的单片机程序，已经得以实现，请放心。(This is the single-chip DDS procedures, has been able to realize, please rest assured.)

rs232实验 可以看看是综合实验 需要的人 是51的板子 用keil编译(the rs232 experiment to see people in need of comprehensive experimental 51 board keil compiler)

Keil C uVision4 集成开发环境详细中文教程，对于新使用Keil C uVision4 很好的资料。(Keil C uVision4 detailed Chinese tutorial integrated development environment, for a new use Keil C uVision4 good information.)

Profibus-DP从站原理图， VPC3芯片配合STM32F103RBT6的系统，AD6原理图格式。(Profibus-DP slave schematics, VPC3 chip with STM32F103RBT6 system, AD6 schematic format.)

说明：  51单片机双机通信程序，keil环境。。。。。(51 keil communication between two machine)

ATSHA204 主要特性： 1，SHA-256 Hash算法 2，有保证的唯一的72-bit序列号； DS28CN01　６４－ｂｉｔ 不仅有软件加密，内部还有高质量硬件加密。 3，16个槽口的4kbits EEPROM： 4Kbits / 8 = 512Bytes 每个槽口32bytes 4，I2C接口, 单线接口 5, 和Atmel AT88SA102S，AT88SA10HS 6, i2c 地址默认为0xc8； 还可以configuration zone改变地址。(CryptoAuthentication Device Family Atmel offers the industry s widest selection of hardware authentication and encryption devices. The portfolio is currently comprised of three parts with several others under development. Our CryptoAuthentication devices provide confirmation that hardware and software products are real, which is what authentication is all about. The devices are extremely cost-effective and come in exceptionally small packages.)

code for stm32l152 gpio blink led

$regfile = M8DEF.dat internal crystal 8000000 Config Lcdpin = Pin , Db4 = Portc.1 , Db5 = Portc.2 , Db6 = Portc.3 , Db7 = _ Portc.4 , E = Portd.2 , Rs = Portd.3 Config Lcd = 16 * 2 Config Timer1 = Counter , Edge = Rising Ddrb.1 = 0 : Portb.1 = 1 PULL UP RESISTOR ACTIVATED Config Timer0 = Timer , Prescale = 1024 Enable Counter1 Enable Interrupts Enable Timer0 Enable Timer1 On Ovf1 Pulsecount On Ovf0 Ovf0occures Dim A As Long , I As Long , B As Byte B = 0 Cls Start Timer0 Do Loop End end program Ovf0occures: Incr I If I > 30 Then Stop Timer0 Cls : Home A = B * 65536 A = A + Counter1 Lcd FREQ IS : A HZ B = 0 I = 0 : Counter1 = 0 Start Timer0 End If Return Pulsecount: Incr B Counter1 = 0 Return

用stm32单片机进行pwm输出和ADC设置(USE STM32 MCU OUT PUT PWM WAVE AND ADC)

通过IAR编程实现传感器节点对于振动电流信号的采集(Vibration sensor nodes to achieve a current programming signal acquisition by IAR)