pn532_t Struct Reference

Opaque-like runtime state for a single PN532 instance. More...

#include <pn532.h>

Public Attributes
pn532_transport_t	transport
spi_device_handle_t	spi
int	pin_cs
i2c_master_bus_handle_t	i2c_bus
i2c_master_dev_handle_t	i2c_dev
int	pin_irq
int	pin_rst

Detailed Description

Opaque-like runtime state for a single PN532 instance.

Populated by pn532_init; must remain valid for the lifetime of all subsequent driver calls. Do not read or write fields directly — treat this as an opaque handle.

Examples

BasicUsage/main/main.cpp, Connect/main/main.cpp, Sign/main/main.cpp, UsdcSigning/main/main.cpp, and VerifyPin/main/main.cpp.

Definition at line 141 of file pn532.h.

Member Data Documentation

i2c_bus

i2c_master_bus_handle_t pn532_t::i2c_bus

I²C bus handle returned by i2c_new_master_bus().

Definition at line 149 of file pn532.h.

Referenced by pn532_init_i2c().

i2c_dev

i2c_master_dev_handle_t pn532_t::i2c_dev

I²C device handle returned by i2c_master_bus_add_device().

Definition at line 150 of file pn532.h.

Referenced by i2c_read_ready(), pn532_init_i2c(), read_data(), read_data_apdu_frame(), and write_command().

pin_cs

int pn532_t::pin_cs

Chip-select GPIO (cached from config for fast toggling).

Definition at line 146 of file pn532.h.

Referenced by pn532_init_spi(), read_data(), read_data_apdu_frame(), read_ready(), and write_command().

pin_irq

int pn532_t::pin_irq

IRQ GPIO (-1 when unused).

Definition at line 151 of file pn532.h.

Referenced by pn532_init_i2c().

pin_rst

int pn532_t::pin_rst

Reset GPIO (-1 when unused).

Definition at line 152 of file pn532.h.

Referenced by pn532_init_i2c().

spi

spi_device_handle_t pn532_t::spi

SPI device handle returned by spi_bus_add_device().

Definition at line 145 of file pn532.h.

Referenced by pn532_init_spi(), spi_read_byte(), and spi_write_byte().

transport

pn532_transport_t pn532_t::transport

Active transport (copied from pn532_config_t).

Definition at line 142 of file pn532.h.

Referenced by pn532_init(), read_data(), read_data_apdu_frame(), read_ready(), and write_command().

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The documentation for this struct was generated from the following file:

• components/pn532/include/pn532.h