Claude/explain codebase mlk9o584mfw0iezv mh0 nt#7
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Adds a new consumer class where a group of GPIO outputs are mutually exclusive: receiving an event for any output in the group turns that output on and turns off all others. Useful for signal masts, route indicators, or any application where only one output should be active at a time. Includes CDI configuration support (ExclusiveConsumerConfig) with one event per output (rather than an on/off pair), and unit tests covering exclusive switching, identify consumer, and global identify behavior. https://claude.ai/code/session_01178EKqcoikwTtUC9ybWow1
Modifies the nucleo_io application's STM32F303RE Nucleo target to use ConfiguredExclusiveConsumer for Port D and Port E output lines 1-6: - Port D lines 1,2,3: exclusive group 1 (one active at a time) - Port D lines 4,5,6: exclusive group 2 (one active at a time) - Port E lines 1,2,3: exclusive group 1 (one active at a time) - Port E lines 4,5,6: exclusive group 2 (one active at a time) - Port D/E lines 7,8: remain as standard on/off consumers Breaks the main.cxx symlink to the F091RC target to create a target-specific main.cxx. Updates config.hxx CDI layout with ExclusiveGroup3 entries and bumps CANONICAL_VERSION to force EEPROM reset on existing boards. https://claude.ai/code/session_01178EKqcoikwTtUC9ybWow1
Increases exclusive consumer group size from 3 to 4 outputs, which aligns with the shift register divisibility and supports signal mast use cases with a marker light (4 aspects). All 8 lines per port are now covered by two exclusive groups with no remainder: - Port D group 1: lines 1,2,3,4 (mutually exclusive) - Port D group 2: lines 5,6,7,8 (mutually exclusive) - Port E group 1: lines 1,2,3,4 (mutually exclusive) - Port E group 2: lines 5,6,7,8 (mutually exclusive) The ConfiguredExclusiveConsumer class itself already supports any group size (2, 3, 4, etc.) since it is templated on N. https://claude.ai/code/session_01178EKqcoikwTtUC9ybWow1
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Adding exclusive to master to be able to reference it in the work on Cue with Claude. This code has been tested on F303 hardware via the DevKit successfully.