Modern embedded systems are becoming increasingly compact, power efficient, and feature rich. As SoCs integrate more functionality, developers need reliable debug access without increasing pin count ...

JTAG（Joint Test Action Group，联合测试行动小组）是一种国际标准测试协议（IEEE 1149.1兼容），主要用于芯片内部测试。现在多数的高级器件都支持JTAG协议，如ARM、DSP、FPGA器件等。标准的JTAG接口是4线：TMS、 TCK、TDI、TDO，分别为模式选择、时钟、数据输入和数据输出线 ...

Say you’re tinkering with a smart device powered by a CPU that uses Serial Wire Debug (SWD), but doesn’t mark the testpoints. Finding SWD on a board — how hard could it be? With [Aaron Christophel]’s ...

Adafruit has announced the arrival of a new piece of kit to their online store in the form of the IBDAP – CMSIS-DAP JTAG/SWD Debug Adapter Kit, which is now available to purchase priced at $19.95. The ...

A software developer describes tips and tricks for using the built-in debugging options on the ARM Cortex M microcontroller. (Paper from ARM TechCon 2010.) This article is from class ATC-133 at ARM ...

We mentioned the Raspberry Pi Debug Probe when it was launched, a little RP2040-based board that provides both a USB-to-UART and an ARM SWD debug interface. [Jeff Geerling] was lucky enough to snag ...

Since the introduction of the Raspberry Pi Pico, developers like to use it to debug programs running on another Raspberry Pi. Inspired by the trend, Rasbperry Pi is launching its own Debug Probe for ...

Hopefully you know perfectly well what the software in your microcontroller is supposed to do. However, if you have been asking yourself why it doesn’t work as expected and wondered what it is ...