AN3955 datasheet(14/68 Pages) STMICROELECTRONICS

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CR95HF low level layer

AN3955

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Doc ID 022017 Rev 1

4.3

CR95HF layer functions

The tables below introduce the functions available in the CR95HF layer.

Table 2.

CR95HF layer functions based on CR95HF commands

Function name

Brief description

CR95HF_IDN

Sends an IDN command to CR95HF device. It returns its version

number. For more details about CR95HF_IDN function, refer to

Section 4.4: IDN function.

CR95HF_Echo

Sends an Echo command to CR95HF device which returns an Echo

response. The Echo function checks if communications can be

started between the MCU and the CR95HF. For more details about

CR95HF_Echo

function, refer to Section 4.5: ECHO function.

CR95HF_ProtocolSelect

Sends a ProtocolSelect command to CR95HF device. It selects the

RF communication protocol, configures RF parameters and switches

the RF field on. For more details about CR95HF_ProtocolSelect

function, refer to Section 4.6: ProtocolSelect function.

CR95HF_SendRecv

Sends a SendRecv command. The parameter sent to the command

is the frame which is coded according to the protocol previously

selected by issuing a ProtocolSelect command. For more details

about CR95HF_SendRecv function, refer to Section 4.7: SendRecv

function.

CR95HF_Idle

Sends an Idle command to the CR95HF device to switch it into low

consumption mode. For more details about CR95HF_Idle function,

refer to Section 4.8: Idle function.

CR95HF_RdReg

Sends a ReadRegister command to the CR95HF device to read the

CR95HF internal register. For more details about CR95HF_RdReg

function, refer to Section 4.9: RdReg function.

CR95HF_BaudRate

Sends a Baudrate command to the CR95HF device. It changes the

CR95HF UART baudrate. For more details about

CR95HF_BaudRate

function, refer to Section 4.10: BaudRate

function.

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