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单片机编程  DTMF Decoding with a PIC16xxx

This application note describes how to decode standard DTMF tones using the minimum number of external discrete components and a PIC. The two examples use a PIC which has an 8 bit timer and either a comparator or an ADC, although it can be modified for use on a PIC which has only digital I/O. The Ap ...

https://www.eeworm.com/dl/502/30878.html

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单片机编程  开放式汇编器系统的设计

汇编器在微处理器的验证和应用中举足轻重，如何设计通用的汇编器一直是研究的热点之一。本文提出了一种开放式的汇编器系统设计思想，在汇编语言与机器语言间插入中间代码CMDL（code mapping description language）语言，打破汇编语言与机器语言的直接映射关系，由此建立起一套描述汇编语言与机器语言的开放式映射体系。基 ...

https://www.eeworm.com/dl/502/30892.html

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单片机编程  基于8086 CPU 的单芯片计算机系统的设计

本文依据集成电路设计方法学，探讨了一种基于标准Intel 8086 微处理器的单芯片计算机平台的架构。研究了其与SDRAM，8255 并行接口等外围IP 的集成，并在对AMBA协议和8086 CPU分析的基础上，采用遵从AMBA传输协议的系统总线代替传统的8086 CPU三总线结构，搭建了基于8086 IP 软核的单芯片计算机系统，并实现了FPGA 功能演示 ...

https://www.eeworm.com/dl/502/31145.html

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单片机编程  Designing Boards with Atmel AT

Designing Boards with Atmel AT89C51, AT89C52, AT89C1051, and AT89C2051 for Writing Flash at In-Circuit Test:Recent improvements in chips andtesters have made it possible for thetester to begin taking over the role traditionallyassigned to the PROM programmer.Instead of having a PROM programmerwrite ...

https://www.eeworm.com/dl/502/31192.html

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单片机编程  Emulating a synchronous serial

The C500 microcontroller family usually provides only one on-chip synchronous serialchannel (SSC). If a second SSC is required, an emulation of the missing interface mayhelp to avoid an external hardware solution with additional electronic components.The solution presented in this paper and in the a ...

https://www.eeworm.com/dl/502/31365.html

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单片机编程  MPC106 PCI Bridge/Memory Contr

In this document, the term &Ocirc;60x&Otilde; is used to denote a 32-bit microprocessor from the PowerPC architecture family that conforms to the bus interface of the PowerPC 601&ordf;, PowerPC 603&ordf;, or PowerPC 604 microprocessors. Note that this does not include the PowerPC 602&ordf; microproc ...

https://www.eeworm.com/dl/502/31368.html

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单片机编程  USB Demonstration for DK3200 w

The μPSD32xx family, from ST, consists of Flash programmable system devices with a 8032 MicrocontrollerCore. Of these, the μPSD3234A and μPSD3254A are notable for having a complete implementationof the USB hardware directly on the chip, complying with the Universal Serial Bus Specification, Revis ...

https://www.eeworm.com/dl/502/31371.html

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单片机编程  对带有uPSD3234A的DK3200的USB演示

The μPSD32xx family, from ST, consists of Flash programmable system devices with a 8032 Microcontroller Core. Of these, the μPSD3234A and μPSD3254A are notable for having a complete implementation of the USB hardware directly on the chip, complying with the Universal Serial Bus Specification, Rev ...

https://www.eeworm.com/dl/502/31372.html

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单片机编程  An easy way to work with Exter

Internal Interrupts are used to respond to asynchronous requests from a certain part of themicrocontroller that needs to be serviced. Each peripheral in the TriCore as well as theBus Control Unit, the Debug Unit, the Peripheral Control Processor (PCP) and the CPUitself can generate an Interrupt Requ ...

https://www.eeworm.com/dl/502/31373.html

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单片机编程  用外部设备设置32位微控制器TriCore的中断的指令及方法

The Infineon TriCore provides an Interrupt System with a high safety standard. Thisdocument contains some instructions on how to initiate an Interrupt from an externaldevice. First it will show you how to trigger an Interrupt Service Request by an impulseon Port 0 or Port 1. Then in the second part ...

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