fix(lvgl_tick): correct lvgl timer configuration.

[sunzhen222]

Summary by CodeRabbit

• Refactor
  • Updated timer configuration to trigger every 2 ms instead of 1 ms, improving timing consistency.
  • Timer tick increment now matches the new timer period for more accurate time tracking.

[coderabbitai]

Walkthrough

The timer setup in timer.c was updated to use a prescaler of 1000 and a configurable period defined by LVGL_TIMER_PERIOD_MS, now set to 2 ms. The interrupt now fires every 2 ms, and the tick increment matches this period. The callback checks for TIM4 before incrementing the tick.

Changes

File(s)	Change Summary
core/embed/trezorhal/timer.c	Updated timer prescaler and period logic, and adjusted tick increment

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[coderabbitai]

Actionable comments posted: 0

🔭 Outside diff range comments (1)

core/embed/trezorhal/timer.c (1)

22-23: ⚠️ Potential issue

Empty if block.

Missing error handling.

🧹 Nitpick comments (2)

core/embed/trezorhal/timer.c (2)

5-6: Missing comment.

No explanation for 2ms choice.

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15-17: Formula is complex.

Magic number 2 * 1000 needs clarification.

📜 Review details

Configuration used: CodeRabbit UI
Review profile: CHILL
Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between b37a61c and 123d372.

📒 Files selected for processing (1)

• core/embed/trezorhal/timer.c (2 hunks)

⏰ Context from checks skipped due to timeout of 90000ms (3)

• GitHub Check: Gen check
• GitHub Check: Style check
• GitHub Check: Defs check

🔇 Additional comments (1)

core/embed/trezorhal/timer.c (1)

37-42: Good check added.

TIM4 instance verification improves robustness.