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Code Issues Activity

added DigitalSequence and PulseReader (#2070)

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* added DigitalSequence to chain multiple DigitalSignals
added PulseReader for hardware assisted digital signal sampling
* added send_time option to start a signal at a specific DWT->CYCCNT value
* fixed linter errors and undone function renaming
* fixed renaming
* flagged functions in api_symbols.csv
* allow gpio field to stay uninitialized in digital_signal_prepare_arr()
* fix test cases to match (expected) implementation
* pulse_reader: build as static library
Signed-off-by: g3gg0.de <git@g3gg0.de>
* fix starting level detection in pulse_reader
* added unit test for pulse_reader
* change pulse reader test timings to 1, 10 and 100 ms
* fine tuned timings for pulse_reader test
* pulse_reader_stop now deinits GPIO as recommended by @gornekich
* ran format_py
* pulse_reader: remove from API, allow to link with faps
Signed-off-by: g3gg0.de <git@g3gg0.de>
* remove unit test for pulse_reader again
* pulse_reader: add call to set GPIO pull direction
* make structures private, add C implementation of digital_signal_update_dma()
* digital_signal/pulse_reader: allow parameters for free to be NULL
* digital_signal: show unoptimized and optimized code for digital_signal_update_dma() next to each other
* pulse_reader: further optimize assembly code
* digital_signal: reduce code complexity of digital_signal_update_dma() by only reconfiguring DMA2
* digital_signal: remove assembly code, limiting the performance but increasing portability
* added recovery if the timer already expired
* digital_signal: fix memory leak
* digital_signal: keep lock until all DMA transfers have finished
* DigitalSequence: fix issues with concatenation of same levels and spurious bit flips
* DigitalSignal: use cyclic DMA buffer for sequences
* update api_symbols.csv
* Update api_symbols.csv for f18 target
* Patches from @gornekich to fix linter warnings.
* Remove some redundant if checks
* Remove some magic numbers and reformat.
* Remove forced terminating edge.

Signed-off-by: g3gg0.de <git@g3gg0.de>
Co-authored-by: gornekich <n.gorbadey@gmail.com>
Co-authored-by: Tiernan Messmer <tiernan.messmer@gmail.com>
Co-authored-by: Aleksandr Kutuzov <alleteam@gmail.com>
This commit is contained in:
g3gg0.de
2023-05-09 02:55:17 +02:00
committed by GitHub
parent f57f0efc48
commit e1c6e78b2e
11 changed files with 1024 additions and 88 deletions
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40
lib/digital_signal/digital_signal.h
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@@ -10,18 +10,35 @@
extern "C" {
#endif
typedef struct {
/* 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)
/* using an anonymous type for the internals */
typedef struct DigitalSignalInternals DigitalSignalInternals;
/* and a public one for accessing user-side fields */
typedef struct DigitalSignal {
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_buff; /* internal, but used by unit tests */
DigitalSignalInternals* internals;
} DigitalSignal;
typedef struct DigitalSequence 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);
@@ -34,6 +51,25 @@ 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_set_sendtime(DigitalSequence* sequence, uint32_t send_time);
void digital_sequence_add(DigitalSequence* sequence, uint8_t signal_index);
bool digital_sequence_send(DigitalSequence* sequence);
void digital_sequence_clear(DigitalSequence* sequence);
void digital_sequence_timebase_correction(DigitalSequence* sequence, float factor);
#ifdef __cplusplus
}
#endif