Greetings, I have a custom designed board with 3 MCUs: 2x EFM32TG11B120F128 (Tiny geckos/Cortex-M0) and 1x EFM32GG11B420F2048 (Giant gecko/Cortex-M4). I have a single Keil project with three targets, so I can share code files, build and deploy each version from a single project. I'm downloading the firmware and debugging on a Segger JLink. When I started working on this board, I began with programming the two tiny geckos. There were no issues with either of these mcus, I could compile, download …