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Implement silence detection in BIOS patching

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Replaced fixed delay with silence detection mechanism to improve responsiveness.
This commit is contained in:
kalymos
2026-03-05 20:46:27 +01:00
committed by GitHub
parent 062e6023c0
commit 371db21eae
1 changed files with 27 additions and 2 deletions
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29
PSNee/BIOS_patching.h
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@@ -258,7 +258,32 @@ void Bios_Patching(void) {
}
// --- PHASE 2: Reaching the Target Memory Window ---
_delay_ms(BOOT_OFFSET_MS);
// _delay_ms(BOOT_OFFSET_MS);
// --- PHASE 2: Reaching the Target Memory Window (Silence Detection) ---
// Replaces the fixed _delay_ms(BOOT_OFFSET_MS)
uint8_t current_confirms = 0;
while (current_confirms < CONFIRM_COUNTER_TARGET) {
// SILENCE_THRESHOLD 5000 is approx 2.5ms @ 16MHz
uint16_t count = SILENCE_THRESHOLD;
while (count > 0) {
if (PIN_AX_READ != 0) {
// Activity detected: Reset both counters immediately
count = SILENCE_THRESHOLD;
current_confirms = 0;
} else {
// No activity: Countdown towards zero
count--;
}
}
// One block of silence successfully validated
current_confirms++;
}
PIN_LED_ON;
// --- Prepare pulse counter and patch status flag ---
pulse_counter = PULSE_COUNT;
@@ -286,4 +311,4 @@ PIN_LED_ON;
#endif
}
#endif
#endif