pdm_resources.h whyy

Classes
struct	pdm_rx_resources_t
	Collection of resources IDs required for PDM capture. More...

Macros
#define	PDM_RX_RESOURCES_SDR(P_MCLK, P_PDM_CLK, P_PDM_MICS, CLOCK_A)
	Construct a pdm_rx_resources_t for an SDR configuration. More...
#define	PDM_RX_RESOURCES_DDR(P_MCLK, P_PDM_CLK, P_PDM_MICS, CLOCK_A, CLOCK_B)
	Construct a pdm_rx_resources_t for a DDR configuration. More...

Detailed Description

Macro Definition Documentation

PDM_RX_RESOURCES_DDR

#define PDM_RX_RESOURCES_DDR	(		P_MCLK,
			P_PDM_CLK,
			P_PDM_MICS,
			CLOCK_A,
			CLOCK_B
	)

Value:

    { (port_t) (P_MCLK), (port_t) (P_PDM_CLK), (port_t) (P_PDM_MICS),         \
      (clock_t) (CLOCK_A), (clock_t) (CLOCK_B) }

Construct a pdm_rx_resources_t for a DDR configuration.

Parameters

P_MCLK	Master audio clock port resource ID.
P_PDM_CLK	PDM sample clock port resource ID.
P_PDM_MICS	PDM microphone data port resource ID.
CLOCK_A	PDM clock clock block resource ID.
CLOCK_B	PDM capture clock block resource ID.

PDM_RX_RESOURCES_SDR

#define PDM_RX_RESOURCES_SDR	(		P_MCLK,
			P_PDM_CLK,
			P_PDM_MICS,
			CLOCK_A
	)

Value:

    { (port_t) (P_MCLK), (port_t) (P_PDM_CLK), (port_t) (P_PDM_MICS),   \
      (clock_t) (CLOCK_A) }

Construct a pdm_rx_resources_t for an SDR configuration.

pdm_rx_resources_t.clock_b is initialized to 0, indicating an SDR configuration.

Parameters

P_MCLK	Master audio clock port resource ID.
P_PDM_CLK	PDM sample clock port resource ID.
P_PDM_MICS	PDM microphone data port resource ID.
CLOCK_A	PDM clock and capture clock block resource ID.