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LEDC Driver Update

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- Add double precision to LEDC frequency
- Add method for writing frequencies (Tones)
- Add method for writing notes (8 channels polyphony anyone?)
This commit is contained in:
me-no-dev
2017-01-09 18:05:30 +02:00
parent 8e948096d4
commit a4305284d0
2 changed files with 107 additions and 43 deletions
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10
cores/esp32/esp32-hal-ledc.h
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@ -22,13 +22,21 @@ extern "C" {
#include <stdint.h>
#include <stdbool.h>
typedef enum {
NOTE_C, NOTE_Cs, NOTE_D, NOTE_Eb, NOTE_E, NOTE_F, NOTE_Fs, NOTE_G, NOTE_Gs, NOTE_A, NOTE_Bb, NOTE_B, NOTE_MAX
} note_t;
//channel 0-15 resolution 1-16bits freq limits depend on resolution
uint32_t ledcSetup(uint8_t channel, uint32_t freq, uint8_t resolution_bits);
double ledcSetup(uint8_t channel, double freq, uint8_t resolution_bits);
void ledcWrite(uint8_t channel, uint32_t duty);
double ledcWriteTone(uint8_t channel, double freq);
double ledcWriteNote(uint8_t channel, note_t note, uint8_t octave);
uint32_t ledcRead(uint8_t channel);
double ledcReadFreq(uint8_t channel);
void ledcAttachPin(uint8_t pin, uint8_t channel);
void ledcDetachPin(uint8_t pin);
#ifdef __cplusplus
}
#endif