AN3375 datasheet(11/73 Pages) STMICROELECTRONICS

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AN3375

CR95HF low level layer

Doc ID 018637 Rev 1

11/73

CR95HF low level layer

This library is composed of:

●

The lib_CR95HF.c source file

●

The lib_CR95HF.h include file

2.1

Types

The CR95HF library functions use the following ANSI C compliant types:

typedef

unsigned char

uint8_t;

typedef

signed char

int8_t;

typedef

const uint8_t

uc8;

typedef

signed short int

int16_t;

2.2

Low layer overview

The layer supports all the commands defined in the CR95HF datasheet. Each CR95HF

command corresponds to a specific function. As an example the function calling the ECHO

command is int8_t CR95HF_Echo (uint8_t *pResponse).

Additional functions are described in Table 2: CR95HF library additional function.

Application developers can use the functions described in Table 1: CR95HF library functions

based on CR95HF commands to create their own higher level functions.

Refer to the CR95HF datasheet for more details on the commands.

2.3

CR95HF layer functions

Table 1.

CR95HF library functions based on CR95HF commands

Function name

Brief description

CR95HF_IDN

Send Idn command

CR95HF_Echo

Send EchoCode command

CR95HF_ProtocolSelect

Send Protocol Select command

CR95HF_SendRecv

Send SendRecv command

CR95HF_Idle

Send Idle command

CR95HF_RdReg

Send RdReg command

CR95HF_BaudRate

Send BaudRate command

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