随笔分类 - JTAG
摘要：
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摘要：JTAG FinderFiguring out the JTAG Pinouts on a Device is usually the most time-consuming and frustrating processand Finding the pinouts for these ports...
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摘要：CMSIS-DAPV1V2
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摘要：jtagger Versatile multiprogrammer for FPGAs, MCUs, etc.Well, it's not really just a jtagger, but I've been calling it that.It's also been christened t...
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摘要：The TAP controller is a synchronous finite state machine that respondsto changes at the TMS and TCK signals of the TAP and controls the sequence of op...
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摘要：ARM JTAG 调试原理JTAG的接口是一种特殊的4/5个接脚接口连到芯片上 ，所以在电路版上的很多芯片可以将他们的JTAG接脚通过Daisy Chain的方式连在一起，并且Probe只需连接到一个“JTAG端口”就可以访问一块印刷电路板上的所有IC。这些连接引脚是：TDI（测试数据输入）TDO（...
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摘要：Bus Blaster v4 design overviewBus Blaster v4 is an experimental, high-speed JTAG debugger for ARM processors, FPGAs, CPLDs, flash, and more. Thanks to...
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摘要：https://en.wikipedia.org/wiki/Joint_Test_Action_GroupIn JTAG, devices expose one or moretest access ports(TAPs).The picture above shows three TAPs, wh...
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摘要：用户在调试内嵌可综合内核的 CPU 如 ARM7TDMI-S 时，需要通过打开仿真器的自适应时钟功能。此时，ARM仿真器根据 RTCK 时钟信号的频率，产生可用于 CPU 内核当前时钟主频的最快的 TCK 时钟。即ARM 内核的时钟主频变化，引起 RTCK 变化，仿真器根据 RTCK 的变化，产生合...
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摘要：New version released ! V2.45(Check version list for details)This construction is based on HappyJTAG Idea, to implement JTAG interface into target avr ...
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摘要：用SWD调试接口测量代码运行时间关于时间测量的种种问题在嵌入式中，我们经常需要测量某段代码的执行时间或测量事件触发的时间，常规的思路是：1：在测量起始点，反转电平2：在测量结束点，再次反转电平然后通过示波器或者逻辑分析仪来测量反转间隔，也就是代码时间这种方法，在测量两个或多个时间信号同步的时候，非常...
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摘要：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) In...
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摘要：https://www.computex.co.jp/eg/products/pdf/technical_pdf/arm_if01_gijutsu_eng.pdf
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摘要：One of the basic needs of the embedded software development through the terminal to output debugging information, generally two ways to achieve:one is...
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摘要：Being able to display values for counters, sensors and other debugging information is an important part of software development for microcontrollers. ...
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摘要：ARM Cortex-M processor-based devices use the ARM CoreSight technologywhich introduces powerful newdebug and tracecapabilities.Debug features:Run Contr...
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摘要：The JTAGkey is based on the FTDIChip FT2232L, is a USB 2.0 device and is used for:On-Chip DebuggingIn-System ProgrammingBoundary-Scan Testinghttp://ww...
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摘要：PSoC 5 supports programming through the serial wire debug (SWD) interface.There are two signals in SWD interface: data signal (SWDIO) and a clock for ...
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摘要：Open JTAG Project is an open source hardware and software for a high speed USB JTAG tool.In this site, you can find and download all necesary files to...
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