{"id":6129,"date":"2020-06-16T08:24:29","date_gmt":"2020-06-16T15:24:29","guid":{"rendered":"https:\/\/visualgdb.com\/w\/?p=6129"},"modified":"2020-06-16T08:24:29","modified_gmt":"2020-06-16T15:24:29","slug":"debugging-multi-core-nxp-devices-with-lpc-link-and-visualgdb","status":"publish","type":"post","link":"https:\/\/visualgdb.com\/tutorials\/arm\/nxp\/multicore\/","title":{"rendered":"Debugging Multi-Core NXP Devices with LPC-Link and VisualGDB"},"content":{"rendered":"

This tutorial shows how to debug multi-core NXP devices, such as LPC55S69, using VisualGDB and the LPC-Link debug tools. Before you begin, make sure you can successfully build and debug a basic single-core project for the same device by following our MCUXpresso tutorial<\/a>.<\/p>\n

    \n
  1. In this tutorial, we will create a separate project for each core and will use 2 instances of Visual Studio to debug it. Start the first instance of Visual Studio and launch the VisualGDB Embedded Project Wizard. Pick the name and location for the first project:\"\"<\/a><\/li>\n
  2. Proceed with the default settings on the first page of the Embedded Project Wizard:\"\"<\/a><\/li>\n
  3. Locate your device on the Device Selection<\/strong> page. Each core will be represented by a separate device entry. Select the CORE0<\/strong> entry and click “Next”:\"\"<\/a><\/li>\n
  4. On the next page, locate one of the multi-core examples. In this example, we will use the hello_world_cm33_core0<\/strong> example:\"\"<\/a><\/li>\n
  5. Make sure the Debug Method<\/strong> page has the core #0<\/strong> selected, then press “Finish” to generate a project: \"\"<\/a><\/li>\n
  6. Initially you won’t be able to build the project, as the firmware for core #0 includes a pre-built binary for the core #1:\"\"<\/a><\/li>\n
  7. Start another instance of Visual Studio and create another project. This time, select CORE1<\/strong>:\"\"<\/a><\/li>\n
  8. Make sure you select the core1<\/strong> counterpart on the Sample Selection page:\"\"<\/a><\/li>\n
  9. Also ensure that you have the core #1 selected on the Debug Method page: \"\"<\/a><\/li>\n
  10. In order to observe what the firmware is doing without stopping it, we will add a static variable (s_Core1Iteration<\/strong>) to the main loop in main()<\/strong>. Build the project and ensure it succeeds:\"\"<\/a><\/li>\n
  11. Update the project for the core #0 to include the correct binary for core #1: \"\"<\/a><\/li>\n
  12. Add another static variable to monitor the state of core #0: \"\"<\/a><\/li>\n
  13. Now you can start debugging core #0. Note that the main loop won’t start running until you attach a debugger to core #1: \"\"<\/a><\/li>\n
  14. If you stop the core #0 now, you will see that it is waiting for core #1 to start in the MCMGR_StartCore()<\/strong> function:\"\"<\/a><\/li>\n
  15. Go to the second Visual Studio instance that has the project for core #1 and begin debugging. The s_Core1Iteration<\/strong> variable will start counting up: \"\"<\/a><\/li>\n
  16. The first instance of Visual Studio will show that the main loop of core #0 has started as well: \"\"<\/a>You can use the 2 instances of Visual Studio to debug each of the cores independently. Stopping one of the cores will not affect the state of the other core.<\/li>\n<\/ol>\n

    You can find the source code for the project shown in this tutorial in our GitHub repository<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"

    This tutorial shows how to debug multi-core NXP devices, such as LPC55S69, using VisualGDB and the LPC-Link debug tools. Before<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[89],"tags":[208,192,207],"_links":{"self":[{"href":"https:\/\/visualgdb.com\/w\/wp-json\/wp\/v2\/posts\/6129"}],"collection":[{"href":"https:\/\/visualgdb.com\/w\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/visualgdb.com\/w\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/visualgdb.com\/w\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/visualgdb.com\/w\/wp-json\/wp\/v2\/comments?post=6129"}],"version-history":[{"count":1,"href":"https:\/\/visualgdb.com\/w\/wp-json\/wp\/v2\/posts\/6129\/revisions"}],"predecessor-version":[{"id":6145,"href":"https:\/\/visualgdb.com\/w\/wp-json\/wp\/v2\/posts\/6129\/revisions\/6145"}],"wp:attachment":[{"href":"https:\/\/visualgdb.com\/w\/wp-json\/wp\/v2\/media?parent=6129"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/visualgdb.com\/w\/wp-json\/wp\/v2\/categories?post=6129"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/visualgdb.com\/w\/wp-json\/wp\/v2\/tags?post=6129"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}