c6c3d4a045
remove unused coprocessor driver from all CBM projects
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No project uses floating-point, so coprocessor_enable() was dead code.
Removes rp2350_coprocessor.c/.h and all references from reset handlers
and Makefiles across all 15 CBM drivers (0x01-0x0f).
2026-04-05 21:36:42 -04:00
e6d8ab4850
refactor: enforce 8-line Reset_Handler limit across CBM drivers
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Extract _late_init() wrappers in 0x04, 0x05, 0x0b, 0x0d, 0x0e, 0x0f
to keep Reset_Handler within the max 8 code-line standard.
2026-04-05 21:29:31 -04:00
6bb722ddee
fix: correct 14.5 MHz to 12 MHz across all CBM projects
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- Update all docstrings from 14.5 MHz to 12 MHz XOSC (29 files)
- Fix 0x05_servo_cbm divider: INT=14/FRAC=8 (14.5) -> INT=12/FRAC=0 (12)
- Verified against RP2350 datasheet, Pico 2 board schematic, and SDK
2026-04-05 18:19:43 -04:00
7a42b2e088
Add 0x04_pwm_cbm: bare-metal RP2350 PWM driver
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- PWM slice 4, channel B on GPIO25 (onboard LED)
- Duty cycle sweep 0-100% in 5% steps for breathing effect
- Wrap 9999 with no clock division (~650 Hz from ROSC)
- UART reports each duty step
- 1390B FLASH, 11 source files, zero warnings
2026-04-05 16:21:47 -04:00
Kevin Thomas