How to debug Arduino code with C33 and Segger Jlink

Portenta Hat Carrier

Arduino IDE

Segger J-Link Probe

Portenta C33

Ozone

<html><body>An embedded debugger for Arduino code serves as an invaluable tool in the world of microcontroller programming, offering developers a streamlined and efficient means to troubleshoot, analyze, and optimize their code. One of the primary benefits of using an embedded debugger with Arduino is the ability to step through code line by line, allowing developers to identify and rectify issues with precision. This granular control enhances the debugging process, facilitating the isolation of errors and the understanding of program flow. Furthermore, an embedded debugger enables the monitoring of variables and registers in real time, empowering developers to observe the changing states of their code during execution. This visibility proves instrumental in identifying runtime errors, memory issues, or unexpected behavior, ultimately speeding up the debugging cycle. This article covers the basics of the usage of the Segger J-link debugger used in conjunction with C33. Download and <a href="https://www.segger.com/products/development-tools/ozone-j-link-debugger/">install Ozone debugger.</a> If you are on Windows, make sure to also download the <a href="https://www.segger.com/products/debug-probes/j-link/tools/j-link-gdb-server/about-j-link-gdb-server/">J-Link Software and Documentation Pack for Windows.</a>Debugger connection Connect the cable with the red cable on the left. <figure><img src="https://projects.arduinocontent.cc/612bace5-0fb2-41e3-a299-d6540db86be7.jpg"/><figcaption>connect the Debugger to JTAG</figcaption></figure> <ol><li>Target configuration. </li></ol>You can download the SVD (it helps with decoding MCU peripherals and devices) from here: https://github.com/tinygo-org/renesas-svd/blob/main/R7FA6M5BH.svd <figure><img src="https://projects.arduinocontent.cc/dced5a22-ea4b-41b5-9185-0c151607f1f0.png"/><figcaption></figcaption></figure><ol><li>Connection settings </li></ol> <figure><img src="https://projects.arduinocontent.cc/71566641-98e4-4971-90b7-fc3e429b5f0d.png"/><figcaption>Connection settings</figcaption></figure> <ol><li>Program file. </li></ol>Generate it from the Sketch menu of the Arduino IDE, using the "Export Compiled Binary" command. <blockquote>The important thing to not forget is to compile the sketch with the “Optimize for Debugging” feature enabled in the “Tools" menu of the Arduino IDE (or using the corresponding --optimize-for-debug switch of the arduino-cli compile command). You can generate the binary version of the sketch for any debugging setup you prefer via the “Export Compile Binary” item of the “Sketch” menu (or with the -e switch of the arduino-cli compile command)." </blockquote> <figure><img src="https://projects.arduinocontent.cc/91bec671-4734-42e1-b2b9-c853fcad4169.png"/><figcaption></figcaption></figure> <figure><img src="https://projects.arduinocontent.cc/6f727f30-71af-4afd-b106-9552bfa0af05.png"/><figcaption></figcaption></figure> After compiling the sketch, you'll find it in the sketch folder under the build sub-folder. Select the .elf file , it contains extended support for debugging and embeds all the (sketch) source code. <figure><img src="https://projects.arduinocontent.cc/4d077057-e865-460c-b62f-548bfcf9c7cf.png"/><figcaption></figcaption></figure> Leave "Optional Settings" as it is. <figure><img src="https://projects.arduinocontent.cc/433072e1-4f65-457d-ba84-3c0bcd944143.png"/><figcaption></figcaption></figure> In the "Functions” panel, search for “setup()” and double-click it. It will open a new source window with your sketch. <figure><img src="https://projects.arduinocontent.cc/a85ac3cb-a211-417e-b531-64a847dc5845.png"/><figcaption></figcaption></figure>Set the breakpoint and start the debugging session. Other resources: <a href="https://docs.arduino.cc/learn/microcontrollers/debugging/">https://docs.arduino.cc/learn/microcontrollers/debugging/ </a><a href="https://docs.arduino.cc/software/ide-v2/tutorials/ide-v2-debugger/#using-the-debugger">https://docs.arduino.cc/software/ide-v2/tutorials/ide-v2-debugger/#using-the-debugger </a> </body></html>

How to debug Arduino code with C33 and Segger Jlink

Debug your C33 with few steps