st25r3911b_non_response_timer_set()

int st25r3911b_non_response_timer_set	(	uint16_t	fc,
		bool	long_range,
		bool	emv
	)

#include <lib/st25r3911b/st25r3911b_common.h>

Set NFC Reader No-Response timer.

This timer is set to verify whether a tag response is received within the configured time. Time measurement is started at the end of the ST25R3911B transmission. According to NFC Forum Digital 2.0 6.10.1.

Parameters

[in]	fc	Wait time defined in 64/fc or 4096/fc unit.
[in]	long_range	Long range mode. If this parameter is set, one FDT time is fc * 4096, otherwise fc * 64.
[in]	emv	Emv mode. If set, the timer unconditionally produces an IRQ when it expires and is not stopped by a direct command Clear. This means that IRQ is independent of whether a tag reply was detected. If a tag reply is being processed at the moment of time-out, no other action is taken. If no tag response is being processed, the signal rx_on is forced to low to stop the receive process. If emv mode is not set, the IRQ is produced if the No-Response timer expires before a start of a tag reply is detected, and rx_on is forced to low to stop the receiver process. If the start of a tag reply is detected before time-out, the timer is stopped, and no IRQ is produced.

Return values

0	If the operation was successful. Otherwise, a (negative) error code is returned.