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LPC18xx/43xx OTP Controller driver /* * @brief LPC18xx/43xx OTP Controller driver * * @note * Copyright(C) NXP Semiconductors, 2012 * All rights reserved. * * @par * Software that is described herein is for illustrative purposes only * which provides…

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JTAG was the traditional mechanism for debug connections for ARM7/9 parts, but with the Cortex-M family, ARM introduced the Serial Wire Debug (SWD) Interface. SWD is designed to reduce the pin count required for debug from the 5 used by JTAG (includi…

Implementation of Serial Wire JTAG flash programming in ARM Cortex M3 Processors The goal of the project was to use the Serial Wire JTAG protocol implemented in the ARM cortex processors for programming the flash memory of it. JTAG was actually imple…

https://github.com/MarkDing/swd_programing_sram // // Copyright (c) 2013 SILICON LABORATORIES, INC. // // FILE NAME : 32bit_prog_defs.h // DESCRIPTION : ARM Serial Wire debug interface header file // #ifndef _32BIT_PROG_DEFS_ #define _32BIT_PROG_DEFS…

http://infocenter.arm.com/help/index.jsp?topic=/com.arm.doc.dui0499b/BEHEIHCE.html he ARM JTAG 20 connector is a 20-way 2.54mm pitch connector. It can be used in either standard JTAG (IEEE 1149.1) mode or Serial Wire Debug (SWD) mode. The following f…

Test access port (TAP) JTAG defines a TAP (Test access port). The TAP is a general-purpose port that can provide access to many test support functions built into a component. It is composed as a minimum of the three input connections (TDI, TCK, TMS)…

Serial Wire Debug interface The Serial Wire Debug protocol operates with a synchronous serial interface. This uses a single bidirectional data signal, and a clock signal. This section gives an overview of the physical Serial Wire Debug interface. Lin…

For most embedded CPU architecture implementations, the JTAG port is used by the debugger to interface the chip for debugging one or more cores. The normal user will probably not need to know details of the JTAG implementation unless there is a need…

Introducing swddude I love the ARM Cortex-M series of microcontrollers.   The sheer computational power they pack into a teensy, low-power package is almost embarrassing. But, many Cortex-M parts are small — 4x4 millimeters small — and don’t have the…

目录--点击可快速直达 目录 写在前面 1  SWD协议简介 2  SWD物理层协议解析 2.1  SWD通信时序分析 2.2  SWD 寄存器简介 2.2.1  DP寄存器 2.2.2  AP寄存器 2.3  SWD通信流程 2.3.1  SWD复位 2.3.2  SWD读IDCODE 2.3.3  SWD清除错误标志位,并且使能AP调试 2.3.4  SWD读取AP IDR(也就是AP寄存器的ID CODE) 2.3.5  SWD读写MCU任意寄存器 写在前面 最近由于公司需要,所以就做了个…

Debug and trace functions are integrated into the ARM Cortex-M4. Serial wire debug and trace functions are supported in addition to a standard JTAG debug and parallel trace functions. The ARM Cortex-M4 is configured to support up to eight breakpoints…

JTAG接口解读 通常所说的JTAG大致分两类,一类用于测试芯片的电气特性,检测芯片是否有问题:一类用于Debug:一般支持JTAG的CPU内都包含了这两个模块. 一个含有JTAG Debug接口模块的CPU,只要时钟正常,就可以通过JTAG接口访问CPU的内部寄存器和挂在CPU总线上的设备,如FLASH,RAM,SOC(比如4510B,44Box,AT91M系列)内置模块的寄存器,像UART,Timers,GPIO等等的寄存器. 上面说的只是JTAG接口所具备的能力,要使用这些功能,还需要软件…

SPI  SPI接口的全称是"Serial Peripheral Interface",意为串行外围接口,是Motorola首先在其MC68HCXX系列处理器上定义的. SPI接口主要应用在EEPROM,FLASH,实时时钟,AD转换器,还有数字信号处理器和数字信号解码器之间.  SPI接口是以主从方式工作的,这种模式通常有一个主器件和一个或多个从器件,其接口包括以下四种信号: (1)MOSI – 主器件数据输出,从器件数据输入 (2)MISO – 主器件数据输入,从器件数据输出 (3…

SPI 全称及由来:SPI接口的全称是"Serial Peripheral Interface",意为串行外围接口,是Motorola首先在其MC68HCXX系列处理器上定义的. 使用方法:SPI接口主要应用在EEPROM,FLASH,实时时钟,AD转换器,还有数字信号处理器和数字信号解码器之间. 工作模式:SPI接口是以主从方式工作的,这种模式通常有一个主器件和一个或多个从器件,其接口包括以下四种信号: (1)MOSI – 主器件数据输出,从器件数据输入 (2)MISO – 主器件数…

What does this tool do? The LPC18xx/43xx DFUSec utility is a Windows PC tool that provides support functions for LPC18xx/43xx microcontroller via USB. The tool is composed of 3 components: the Image Programmer, the LPC-Link 2 Configuration Tool, and…

Booting dircetly into Redlink FW from flash Hello, the usual way to use the Redlink FW is a two-step approach: First the MCU of the probe enumerates as a DFU device. Then the Redlink Server downloads the current Redlink FW into SRAM and the probe re-…

MCU的启动方式有很多种:UART接口,扩展的静态存储单元(NOR Flash), SPI Flash,quad SPI Flash,高速USB0和USB1.另外可以通过对OTP存储单元的编程. 首先看下内存映射: 在MCU复位之后,ARM处理器将会从ROM区域执行代码. LPC43XX包含一个隐藏指针允许内存区域映射到地址0x00000000. 隐藏指针的默认值为0x1040 0000,保证了启动ROM中的代码在复位的时候被执行. 如果启动方式从flash区域开始,那么系统默认会从内部flas…

LPC-Link 2 is an extensible, stand-alone debug adapter that can be configured to support various development tools and IDEs by downloadable firmwares. Available firmware images include: LPCXpresso IDE debugger by NXP CMSIS-DAP by ARM J-Link by Segger…

http://en.wikipedia.org/wiki/ARM_architecture ARM architecture     ARM architectures The ARM logo Designer ARM Holdings Bits 32-bit or 64-bit Introduced 1985 Design RISC Type Register-Register Branching Condition code Open Proprietary 64/32-bit archi…

ARM片上调试和跟踪解决方案(包括CoreSight体系结构,嵌入式跟踪宏单元(ETM),程序流程跟踪(PTM),ARM调试接口(ADI), 跟踪缓冲器(ETB),嵌入式交叉触发器(CTM)) CoreSight片上调试和跟踪包括: 1)CoreSight体系结构的体系结构规范,程序流程跟踪宏单元(PTM),嵌入式跟踪宏单元(ETM),高速串行跟踪接口(LVDS/MIPI) ARM的调试接口(SWD/JTAG) 2)CoreSight组件包括调试访问接口(DAP),嵌入式交叉触发器(ECT),A…

LPC-Link2 CMSIS-DAP firmware source Hi, I'm using the CMSIS-DAP firmware with the LPC-Link2. I'd like to add some features (like a virtual COM port). I understand there is a reference implementation with available source code, which not directly rela…

80MHz 12 bit ADC processor LPC4370.LPCxpresso do a LPC LINK2 and LABTOOLS open source oscilloscope demo set. (£84 from Mouser, seems quite well liked.) The LPC LINK2 is £14 + VAT from Mouser, it has the ADC on board. The Lab tools board has signal co…

One of the basic needs of the embedded software development through the terminal to output debugging information, generally two ways to achieve: one is the COM port on the UART and PC using a serial cable connecting plate through the PC HyperTerminal…

IBDAP-CMSIS-DAP Armstart's CMSIS-DAP firmware implementation in gcc and makefile. http://www.armstart.com IBDAP is a fully CMSIS-DAP compatible debug adapter. It provides vendor independent debug interface between your PC over USB and target ARM devi…

The mbed HDK and mbed-enabled hardware support the CMSIS-DAP debug interface, which consists of an abstraction of the Cortex Debug Access Port (DAP) command set over a driver-less USB HID connection. This provides a USB connection to the DAP that maj…

Serial Wire Debug (SWD) provides a debug port for severely pin limited packages, often the case for small package microcontrollers but also complex ASICs where limiting pin-count is critical and can be the controlling factor in device costs. SWD repl…

The STM32F401 line is the entry level to the STM32 F4 series. It is designed for medical, industrial and consumer applications requiring balanced performance and power efficiency with a high level of integration of embedded memories and peripherals i…

A novel massively parallel supercomputer of hundreds of teraOPS-scale includes node architectures based upon System-On-a-Chip technology, i.e., each processing node comprises a single Application Specific Integrated Circuit (ASIC). Within each ASIC n…