CalvinBackup/Embedded-Hacking
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Author SHA1 Message Date
Kevin Thomas d05687b79b Updated WEEK03 2026-05-03 18:00:53 -04:00
Kevin Thomas afdc1fa594 Add 0x03_button_cbm: bare-metal RP2350 button driver 
- GPIO15 active-low button input with internal pull-up
- 20ms software debounce via busy-wait confirmation
- LED mirrors button state, UART reports edge transitions
- New gpio_config_input_pullup() in GPIO driver
- 1555B FLASH, 13 source files, zero warnings
 2026-04-05 16:06:46 -04:00