"RLMXXX Parameter"

Class members used to GET/SET usual used parameter. More...

Functions
quint8	RLMXXXCRC::GetPower (quint8 &Power)
	Function determinate the current power level of the amplifier. More...
quint8	RLMXXXCRC::SetPower (const quint8 Power)
	Function set the power level of the amplifier. More...
quint8	RLMXXXCRC::GetFrequency (quint8 &FreMode, quint8 &FreBase, QByteArray &BaseFre, quint8 &ChannNum, quint8 &ChannSpc, quint8 &FreHop)
	Function determinate the current frequency setting of the module. More...
quint8	RLMXXXCRC::SetFrequency (const quint8 FreMode, const quint8 FreBase, const QByteArray &BaseFre, const quint8 ChannNum, const quint8 ChannSpc, const quint8 FreHop)
	Function set frequency parameter of the module. More...
quint8	RLMXXXCRC::GetCommand (quint8 &Cmd)
	Function determinate the current command processed from the module. More...
quint8	RLMXXXCRC::GetStatus (quint8 &Status)
	Function determinate current work status of module. More...

Detailed Description

Class members used to GET/SET usual used parameter.

This functions used to determinate: Operation status of the module, Frequency, PA power level, command in process and to manipulate: Frequency and PA power.

Function Documentation

GetCommand()

quint8 RLMXXXCRC::GetCommand

(

quint8 &

Cmd

)

Function determinate the current command processed from the module.

Its called by application to check program status.

Parameters

[out]

Cmd

Command identifier returned from the module.

Returns

1 on success, 0 if failed

GetFrequency()

quint8 RLMXXXCRC::GetFrequency	(	quint8 &	FreMode,
		quint8 &	FreBase,
		QByteArray &	BaseFre,
		quint8 &	ChannNum,
		quint8 &	ChannSpc,
		quint8 &	FreHop
	)

Function determinate the current frequency setting of the module.

Its called by application and returns:

Frequency Mode ( 1 byte )
0: Simple mode – register effective: R_FREBASE, R_BF_H, R_BF_L, R_BF_D, R_CN
1: Advanced mode – register effective: R_FREBASE, R_BF_H, R_BF_L, R_BF_D, R_CN, R_SPC, R_FREHOP

Frequency Base ( 1 byte ) 0: 50kHz 1: 125kHz

Base Frequency ( 2 byte ) 860-960

Channel Number ( 1 byte ) 1-255

Channel Space ( 1 byte ) 1-255

Frequency hopping ( 1 byte )
0: random frequency hopping.
1: ascending order of frequency hopping.
2: descending order of frequency hopping.
Other: random frequency hopping.

Parameters

[out]	FreMode	[0-1]
[out]	FreBase	[0-1]
[out]	BaseFre	860~960
[out]	ChannNum	[1-255]
[out]	ChannSpc	[1-255]
[out]	FreHop	[0-2]

Returns

1 on success, 0 if failed

GetPower()

quint8 RLMXXXCRC::GetPower

(

quint8 &

Power

)

Function determinate the current power level of the amplifier.

Its called by application.

Parameters

[out]

Power

current amplifier power setting.

Returns

1 on success, 0 if failed

GetStatus()

quint8 RLMXXXCRC::GetStatus

(

quint8 &

Status

)

Function determinate current work status of module.

Its called by application to check status of a circular command e.g. Inventory.

Parameters

[out]

Status

Command byte returned from the module within the response.

Returns

1 on success, 0 if failed

SetFrequency()

quint8 RLMXXXCRC::SetFrequency	(	const quint8	FreMode,
		const quint8	FreBase,
		const QByteArray &	BaseFre,
		const quint8	ChannNum,
		const quint8	ChannSpc,
		const quint8	FreHop
	)

Function set frequency parameter of the module.

Its called by application.

FreMode ( 1 byte )\n

• 0: China Standard (920-925MHz)
• 1: China Standard (840-845MHz)
• 2: ETSI Standard
• 3: fixed-frequency mode (915MHz)
• 4: User-defined
• Other: Standard (920-925MHz)

FreBase ( 1 byte )

• 0: 50kHz
• 1: 125kHz

BaseFre ( 2 byte ) :

• Bit15 reserved
• Bit14-Bit5 Frequency[Mhz]
• Bit4-Bit0 KhzFreBaseFactor

ChannNum ( 1 byte )

• 1-254

ChannSpc ( 1 byte )

• 1-254

Frequency hopping ( 1 byte )

• 0: random frequency hopping
• 1: ascending order of frequency hopping
• 2: descending order of frequency hopping Other: random frequency hopping.

Calculate the Base Frequency:
BaseFre = (((Frequency[Mhz] << 5) | KhzFreBaseFactor ) & 0x7fff)
BaseFre = (( 922 << 5 ) | 5 ) & 0x7fff)
FreBase = 1 -> 125Khz
BF = 922Mhz + 5(KhzFreBaseFactor) x 125Khz(FreBase) = 922.625Mhz
ChannelSeparation = ( ChanSpc * FreBase ) - FreBase with ChanSpc = 2, FreBase = 1 -> 125khz ChannelSeparation = (2 * 125Khz) - 125kHz = 125Khz

Parameters

[in]	FreMode	[0-4]
[in]	FreBase	[0-1]
[in]	BaseFre	840~960 encnoded
[in]	ChannNum	[1-254]
[in]	ChannSpc	[1-254]
[in]	FreHop	[0-2]

Returns

1 on success, 0 if failed

Implementation example

SetPower()

quint8 RLMXXXCRC::SetPower

(

const quint8

Power

)

Function set the power level of the amplifier.

Its called by application to adjust the RFID read/write range.

Parameters

[in]

Power

Amplifier power level [10-30]

Returns

1 on success, 0 if failed