Ad-Hoc emulation mode

Functions
UFR_STATUS DL_API	AdHocEmulationStart (void)
UFR_STATUS DL_API	AdHocEmulationStop (void)
UFR_STATUS DL_API	GetAdHocEmulationParams (VAR uint8_t *ThresholdMinLevel, VAR uint8_t *ThresholdCollLevel, VAR uint8_t *RFLevelAmp, VAR uint8_t *RxGain, VAR uint8_t *RFLevel)
UFR_STATUS DL_API	SetAdHocEmulationParams (uint8_t ThresholdMinLevel, uint8_t ThresholdCollLevel, uint8_t RFLevelAmp, uint8_t RxGain, uint8_t RFLevel)
UFR_STATUS DL_API	GetExternalFieldState (VAR uint8_t *is_field_present)

Detailed Description

Function Documentation

AdHocEmulationStart()

UFR_STATUS DL_API AdHocEmulationStart

(

void

)

Put uFR in emulation mode with ad-hoc emulation parameters (see. SetAdHocEmulationParams() and GetAdHocEmulationParams() functions). uFR stays in ad-hoc emulation mode until AdHocEmulationStop() is called or reader reset.

Returns

Operation status

AdHocEmulationStop()

UFR_STATUS DL_API AdHocEmulationStop

(

void

)

Terminate uFR ad-hoc emulation mode.

Returns

Operation status

GetAdHocEmulationParams()

UFR_STATUS DL_API GetAdHocEmulationParams	(	VAR uint8_t *	ThresholdMinLevel,
		VAR uint8_t *	ThresholdCollLevel,
		VAR uint8_t *	RFLevelAmp,
		VAR uint8_t *	RxGain,
		VAR uint8_t *	RFLevel )

This function returns current ad-hoc emulation parameters. On uFR power on or reset ad-hoc emulation parameters are set back to their default values.

Parameters

ThresholdMinLevel	default value is 15. Could be in range from 0 to 15.
ThresholdCollLevel	default value is 7. Could be in range from 0 to 7
RFLevelAmp	default value is 0. On uFR device should be 0 all the time. (1 for on, 0 for off).
RxGain	Could be in range from 0 to 7.
RFLevel	Could be in range from 0 to 15.

Returns

Operation status

SetAdHocEmulationParams()

UFR_STATUS DL_API SetAdHocEmulationParams	(	uint8_t	ThresholdMinLevel,
		uint8_t	ThresholdCollLevel,
		uint8_t	RFLevelAmp,
		uint8_t	RxGain,
		uint8_t	RFLevel )

This command set ad-hoc emulation parameters. On uFR power on or reset ad-hoc emulation parameters are set back to their default values.

Parameters

ThresholdMinLevel	default value is 15. Could be in range from 0 to 15
ThresholdCollLevel	default value is 7. Could be in range from 0 to 7
RFLevelAmp	default value is 0. On uFR device should be 0 all the time. (1 for on, 0 for off).
RxGain	Could be in range from 0 to 7.
RFLevel	Could be in range from 0 to 15 CombinedModeEmulationStart Function description Puts the uFR reader into a permanently periodical switching from “NDEF tag emulation mode” to “tag reader mode”. Only way for a reader to exit from this mode is to receive the TAG_EMULATION_STOP command (issued by calling the TagEmulationStop() function). Much better control of the NFC device in a uFR proximity range can be achieved using Ad-Hoc emulation mode, described before. Function declaration (C language) UFR_STATUS CombinedModeEmulationStart(void); Function takes no parameters. ________________ Support for ISO14443-4 protocol

Returns

Operation status

GetExternalFieldState()

UFR_STATUS DL_API GetExternalFieldState

(

VAR uint8_t *

is_field_present

)

Returns external field state when uFR is in ad-hoc emulation mode.

Parameters

is_field_present

Returns

Operation status