Detailed Description

Author: Alexandre Abadie alexa.nosp@m.ndre.nosp@m..abad.nosp@m.ie@i.nosp@m.nria..nosp@m.fr; Ben Wehrberger ben.w.nosp@m.ehrb.nosp@m.erger.nosp@m.@haw.nosp@m.-hamb.nosp@m.urg..nosp@m.de

Definition in file pdm.h.

#include <stdint.h>
#include "periph_cpu.h"

Include dependency graph for pdm.h:

Data Structures
struct	pdm_isr_ctx_t
	Interrupt context for a PDM device. More...

Macros
#define	PDM_GAIN_MIN (-20)
	Minimum PDM gain (in dB)

#define	PDM_GAIN_MAX (20)
	Maximum PDM gain (in dB)

#define	PDM_BUF_SIZE (64U)
	Default PDM sample buffer size.

Typedefs
typedef void(*	pdm_data_cb_t) (void arg, int16_t buf)
	Signature for data received interrupt callback.

Functions
int32_t	pdm_init (pdm_mode_t mode, uint32_t rate, int8_t gain, pdm_data_cb_t cb, void *arg)
	Initialize and enable the PDM peripheral.

void	pdm_start (void)
	Start the PDM peripheral.

void	pdm_stop (void)
	Stop the PDM peripheral.

void	pdm_deinit (void)
	Disable the PDM peripheral.

enum	pdm_mode_t { PDM_MODE_MONO = 0 , PDM_MODE_STEREO }
	PDM operation modes. More...

Data Structures