Editor's Pick Debugging Embedded Systems with Minimal Resources By Stuart Ball
Debugging an embedded system can be difficult when you're dealing with either a simple system with few pins or a complex system with nearly every pin in use. Stuart Ball provides some tips to make debugging such systems a little easier. He writes:
Debugging a microcontroller system can be difficult. Things don't work right and it often isn't even clear why. Was something initialized wrong? Is it a timing issue? Is there conflicting use of shared resources?
Debugging is more complicated when there are limited resources. If all the processor pins are used, what do you connect to? How do you get debug information out of the firmware so you can see what is going on?
This article isn't about debugging when you have Ethernet, USB, and Bluetooth interfaces available, or when you have a full-speed emulator. This is about debugging when there aren't many resources available-simple systems with few pins, or more complex systems with nearly every pin already used for something. Read the Complete Article
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Current Issue - See Inside
Circuit Cellar #312 July 2016
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Q&A: Hardware Security Solutions | Debugging Embedded Systems | MCU ModulesDevelopment | Stepper Motor Emulator | Working with MATLAB | Resistance Temperature Detectors | DIY Streaming Audio Player | Moving On Up to HTML5 | The Future of Software-Programmable FPGAs | And More
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