Manual

Fast Internal RC Oscillator Trim Register offset 0x310.

Fast Internal RC Oscillator Trim Register offset 0x310Contains the actual trim values for FIRC frequency adjustment. May be factory-programmed or software-adjustable depending on trim lock configuration.

快速內部RC振盪器微調值暫存器

警告

Trim Value Modification:

• Requires trim lock to be unlocked before modification
• Incorrect trim values can cause system instability
• Factory trim values should be preserved when possible

• Always verify system operation after trim changes

  Trim Adjustment:

  // Carefully adjust FIRC frequency (requires unlock)
  uint32_t current_trim = scg->firctrim;
  scg->firctrim = current_trim + small_adjustment;
  verify_clock_frequency_acceptable();