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Fix boot loop: restore LFSR to 100 kHz, 500 kHz still causes WDT interrupts on S3

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drjones
2026-04-03 12:29:51 -07:00
parent 92689ce4c7
commit adf2b51d70
1 changed files with 4 additions and 5 deletions
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include/config.h
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@@ -36,11 +36,10 @@
#define JAM_FREQ_DEV_KHZ 380.0f // default passed to begin(); per-radio deviation applied after init #define JAM_FREQ_DEV_KHZ 380.0f // default passed to begin(); per-radio deviation applied after init
#define JAM_RX_BW_KHZ 812.0f // wide RX BW for begin() #define JAM_RX_BW_KHZ 812.0f // wide RX BW for begin()
// GDO0 toggle rate during jam. // GDO0 toggle rate during jam.
// 500 kHz (2 µs period = 480 ESP32-S3 cycles) leaves ~60% headroom over ISR overhead (~200 cycles), // Restored to 100 kHz (10 µs period). Faster rates (500 kHz, 1 MHz) caused WDT boot-loops
// preventing the interrupt storm / WDT boot-loop that 1 MHz caused (240 cycles < ISR overhead). // because ESP32-S3's gpio_set_level() calls take ~80 cycles each, overflowing the ISR budget.
// OOK on R1: ±500 kHz main lobe around 315 MHz + strong sidebands covering 314–316 MHz. // 100 kHz gives plenty of LFSR noise (AM sidebands at ±100, ±300, ±500 kHz) without crashing.
// 2-FSK 380 kHz dev on R2: tone pair 433.54/434.30 MHz + 250 kHz sideband spread, covering 433–433.92 MHz band. #define JAM_LFSR_KEY_HZ 100000
#define JAM_LFSR_KEY_HZ 500000
// Fixed dual-carrier jamming: each radio holds one frequency at full TX power (TI CC1101 freq + deviation). // Fixed dual-carrier jamming: each radio holds one frequency at full TX power (TI CC1101 freq + deviation).
// Many NA ~315 MHz RKE remotes are ASK/OOK (see TI CC1101 datasheet MDMCFG2.MOD_FORMAT). Jam path uses OOK on // Many NA ~315 MHz RKE remotes are ASK/OOK (see TI CC1101 datasheet MDMCFG2.MOD_FORMAT). Jam path uses OOK on