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added DigitalSequence to chain multiple DigitalSignals

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added PulseReader for hardware assisted digital signal sampling
This commit is contained in:
g3gg0
2022-12-01 01:37:50 +01:00
parent 2a6a3a1bf7
commit 38eef0703b
5 changed files with 761 additions and 76 deletions
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43
lib/digital_signal/digital_signal.h
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@@ -5,26 +5,57 @@
#include <stdbool.h>
#include <furi_hal_gpio.h>
#include <stm32wbxx_ll_dma.h>
#include <stm32wbxx_ll_tim.h>
#ifdef __cplusplus
extern "C" {
#endif
/* helper for easier signal generation */
#define DIGITAL_SIGNAL_MS(x) (x*100000000UL)
#define DIGITAL_SIGNAL_US(x) (x*100000UL)
#define DIGITAL_SIGNAL_NS(x) (x*100UL)
#define DIGITAL_SIGNAL_PS(x) (x/10UL)
typedef struct {
bool start_level;
uint32_t edge_cnt;
uint32_t edges_max_cnt;
uint32_t* edge_timings;
uint32_t* reload_reg_buff;
uint32_t reload_reg_entries;
uint32_t reload_reg_remainder;
uint32_t gpio_buff[2];
const GpioPin* gpio;
LL_DMA_InitTypeDef dma_config_gpio;
LL_DMA_InitTypeDef dma_config_timer;
} DigitalSignal;
typedef struct {
uint8_t signals_size;
bool bake;
uint32_t sequence_used;
uint32_t sequence_size;
DigitalSignal** signals;
bool* signals_prolonged;
uint8_t* sequence;
const GpioPin* gpio;
} DigitalSequence;
DigitalSignal* digital_signal_alloc(uint32_t max_edges_cnt);
void digital_signal_free(DigitalSignal* signal);
void digital_signal_add(DigitalSignal* signal, uint32_t ticks);
void digital_signal_add_pulse(DigitalSignal* signal, uint32_t ticks, bool level);
bool digital_signal_append(DigitalSignal* signal_a, DigitalSignal* signal_b);
void digital_signal_prepare_arr(DigitalSignal* signal);
void digital_signal_prepare(DigitalSignal* signal);
bool digital_signal_get_start_level(DigitalSignal* signal);
@@ -34,6 +65,16 @@ uint32_t digital_signal_get_edge(DigitalSignal* signal, uint32_t edge_num);
void digital_signal_send(DigitalSignal* signal, const GpioPin* gpio);
DigitalSequence* digital_sequence_alloc(uint32_t size, const GpioPin* gpio);
void digital_sequence_free(DigitalSequence* sequence);
void digital_sequence_set_signal(DigitalSequence* sequence, uint8_t signal_index, DigitalSignal* signal);
void digital_sequence_add(DigitalSequence* sequence, uint8_t signal_index);
bool digital_sequence_send(DigitalSequence* sequence);
void digital_sequence_clear(DigitalSequence* sequence);
#ifdef __cplusplus
}
#endif