How do I get the external editor to jump to the specific code line of my compilation warning or error?
Give the correct command line arguments for the external editor you are using.
In the Build Messages window you have:
Error[Pe020]: identifier "P_1OUT" is undefined C:\Users\PerDA\Documents\IAR Embedded Workbench\430\FET_examples\FET_examples\msp430x1xx\C-source\msp430x1xx_fet_1.c 31
In IAR Embedded Workbench, open the settings dialog: Tools > Options... > Editor > External Editor
For other editors you have to look in the documentation of that editor to see what the specific arguments for your editor should be.
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