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SubGhz: fix sample durations when using external CC1101 #4205

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Merged
hedger merged 2 commits into from
Sep 25, 2025
+6 −4
Merged

SubGhz: fix sample durations when using external CC1101 #4205

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99219a4
SubGhz: fix TIM17 config not applied immediately
Aerosnail Apr 26, 2025
588277c
Merge branch 'dev' into fix/cc1101-ext-tim17-config
hedger Sep 25, 2025
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10 changes: 6 additions & 4 deletions applications/drivers/subghz/cc1101_ext/cc1101_ext.c
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Original file line number Diff line number Diff line change
Expand Up @@ -553,11 +553,13 @@ void subghz_device_cc1101_ext_start_async_rx(
furi_hal_bus_enable(FuriHalBusTIM17);

// Configure TIM
LL_TIM_InitTypeDef TIM_InitStruct = {0};
//Set the timer resolution to 2 us
LL_TIM_SetPrescaler(TIM17, (64 << 1) - 1);
LL_TIM_SetCounterMode(TIM17, LL_TIM_COUNTERMODE_UP);
LL_TIM_SetAutoReload(TIM17, 0xFFFF);
LL_TIM_SetClockDivision(TIM17, LL_TIM_CLOCKDIVISION_DIV1);
TIM_InitStruct.Prescaler = (64 << 1) - 1;
TIM_InitStruct.CounterMode = LL_TIM_COUNTERMODE_UP;
TIM_InitStruct.Autoreload = 0xFFFF;
TIM_InitStruct.ClockDivision = LL_TIM_CLOCKDIVISION_DIV1;
LL_TIM_Init(TIM17, &TIM_InitStruct);

// Timer: advanced
LL_TIM_SetClockSource(TIM17, LL_TIM_CLOCKSOURCE_INTERNAL);
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