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Code Issues Activity

[FL-3880] Fix cumulative error in infrared signals (#3823)

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* Correct for pulse duration cumulative discrepancy
* Add infrared test application
* Build infrared_test_app for f7 only

Co-authored-by: あく <alleteam@gmail.com>
This commit is contained in:
Georgii Surkov
2024-08-07 04:05:53 +01:00
committed by GitHub
parent 41fcead710
commit 0b19fd29e6
3 changed files with 78 additions and 3 deletions
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12
targets/f7/furi_hal/furi_hal_infrared.c
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@@ -54,6 +54,7 @@ typedef struct {
typedef struct {
float cycle_duration;
float cycle_remainder;
FuriHalInfraredTxGetDataISRCallback data_callback;
FuriHalInfraredTxSignalSentISRCallback signal_sent_callback;
void* data_context;
@@ -512,7 +513,11 @@ static void furi_hal_infrared_tx_fill_buffer(uint8_t buf_num, uint8_t polarity_s
status = infrared_tim_tx.data_callback(infrared_tim_tx.data_context, &duration, &level);
uint32_t num_of_impulses = roundf(duration / infrared_tim_tx.cycle_duration);
const float num_of_impulses_f =
duration / infrared_tim_tx.cycle_duration + infrared_tim_tx.cycle_remainder;
const uint32_t num_of_impulses = roundf(num_of_impulses_f);
// Save the remainder (in carrier periods) for later use
infrared_tim_tx.cycle_remainder = num_of_impulses_f - num_of_impulses;
if(num_of_impulses == 0) {
if((*size == 0) && (status == FuriHalInfraredTxGetDataStateDone)) {
@@ -521,7 +526,7 @@ static void furi_hal_infrared_tx_fill_buffer(uint8_t buf_num, uint8_t polarity_s
*/
status = FuriHalInfraredTxGetDataStateOk;
}
} else if((num_of_impulses - 1) > 0xFFFF) {
} else if((num_of_impulses - 1) > UINT16_MAX) {
infrared_tim_tx.tx_timing_rest_duration = num_of_impulses - 1;
infrared_tim_tx.tx_timing_rest_status = status;
infrared_tim_tx.tx_timing_rest_level = level;
@@ -632,6 +637,7 @@ void furi_hal_infrared_async_tx_start(uint32_t freq, float duty_cycle) {
infrared_tim_tx.stop_semaphore = furi_semaphore_alloc(1, 0);
infrared_tim_tx.cycle_duration = 1000000.0 / freq;
infrared_tim_tx.tx_timing_rest_duration = 0;
infrared_tim_tx.cycle_remainder = 0;
furi_hal_infrared_tx_fill_buffer(0, INFRARED_POLARITY_SHIFT);
@@ -655,7 +661,7 @@ void furi_hal_infrared_async_tx_start(uint32_t freq, float duty_cycle) {
const GpioPin* tx_gpio = infrared_tx_pins[infrared_tx_output];
LL_GPIO_ResetOutputPin(tx_gpio->port, tx_gpio->pin); /* when disable it prevents false pulse */
furi_hal_gpio_init_ex(
tx_gpio, GpioModeAltFunctionPushPull, GpioPullUp, GpioSpeedHigh, GpioAltFn1TIM1);
tx_gpio, GpioModeAltFunctionPushPull, GpioPullNo, GpioSpeedHigh, GpioAltFn1TIM1);
FURI_CRITICAL_ENTER();
LL_TIM_GenerateEvent_UPDATE(INFRARED_DMA_TIMER); /* TIMx_RCR -> Repetition counter */