BLUEBERRYF405: add missing PWM beeper timer entry for PB9

[sensei-hacker]

Summary

• Adds the missing DEF_TIM(TIM11, CH1, PB9, TIM_USE_BEEPER, 0, 0) entry to BLUEBERRYF405/target.c
• Without this entry, timerGetByTag() returns NULL for the beeper pin and beeperPwmInit() silently leaves beeperPwm = NULL, so beeper_pwm_mode = ON produces no sound
• TIM11/CH1 is the correct assignment for PB9 on STM32F405 (confirmed against SKYSTARSF405WING reference target)

Fixes part of #11492 (beeper_pwm_mode regression in 9.x maintenance builds).

Note: A second root cause also exists for boards where the beeper timer entry is present but timer_output_mode is set to reassign that peripheral (e.g. MATEKH743 with timer_output_mode 1 SERVOS). That issue is in timerHardwareOverride() in pwm_mapping.c and is being handled separately.

Test plan

• Build BLUEBERRYF405 target cleanly
• Verify beeper_pwm_mode = ON produces tone on PB9 hardware
• Confirm GPIO (non-PWM) beeper mode unaffected

[qodo-code-review]

Review Summary by Qodo

BLUEBERRYF405: Add missing PWM beeper timer entry

🐞 Bug fix

Walkthroughs

Description

• Adds missing PWM beeper timer entry for PB9
• Fixes beeper_pwm_mode regression on BLUEBERRYF405 target
• Enables timerGetByTag() to locate beeper timer correctly
• Aligns with BLUEBERRYH743 fix (commit a66b346c)

Diagram

flowchart LR
  A["Missing DEF_TIM entry"] -->|"timerGetByTag returns NULL"| B["beeperPwmInit fails silently"]
  B -->|"beeperPwm stays NULL"| C["beeper_pwm_mode produces no sound"]
  D["Add TIM11 CH1 PB9 entry"] -->|"timerGetByTag finds timer"| E["beeperPwmInit succeeds"]
  E -->|"beeperPwm initialized"| F["beeper_pwm_mode works correctly"]

Loading

File Changes

1. src/main/target/BLUEBERRYF405/target.c 🐞 Bug fix +1/-0

Add TIM11 beeper timer mapping for PB9

• Adds DEF_TIM(TIM11, CH1, PB9, TIM_USE_BEEPER, 0, 0) entry to timerHardware array
• Configures TIM11 channel 1 on pin PB9 for beeper PWM functionality
• Includes comment identifying the entry as beeper PWM configuration

src/main/target/BLUEBERRYF405/target.c

---

[qodo-code-review]

Code Review by Qodo

🐞 Bugs (0) 📘 Rule violations (0) 📎 Requirement gaps (0)

Great, no issues found!

Qodo reviewed your code and found no material issues that require review

[github-actions]

Test firmware build ready — commit 73d9e07

Download firmware for PR #11531

1 targets built. Find your board's .hex file by name on that page (e.g. MATEKF405SE.hex). Files are individually downloadable — no GitHub login required.

Development build for testing only. Use Full Chip Erase when flashing.