Parser for NFC NDEF messages. More...

Modules
	NFC NDEF message parser module configuration
	NDEF message parser (internal)
	Internal part of the parser for NFC NDEF messages.

Macros
#define	NFC_NDEF_PARSER_REQIRED_MEMO_SIZE_CALC (max_count_of_records)
	Macro for calculating the memory size required for holding the description of a message that consists of a certain number of NDEF records. More...

Functions
ret_code_t	ndef_msg_parser (uint8_t *const p_result_buf, uint32_t *const p_result_buf_len, uint8_t *const p_nfc_data, uint32_t *const p_nfc_data_len)
	Function for parsing NFC NDEF messages. More...
void	ndef_msg_printout ( nfc_ndef_msg_desc_t *const p_msg_desc)
	Function for printing the parsed contents of an NDEF message. More...

Detailed Description

Parser for NFC NDEF messages.

Macro Definition Documentation

#define NFC_NDEF_PARSER_REQIRED_MEMO_SIZE_CALC

(

max_count_of_records

)

Value:

         ((uint32_t)(max_count_of_records) <= 1) ?                          \
        

         (
         
          sizeof
         
         (
         
          parsed_ndef_msg_1_t
         
         ) * (uint32_t)(max_count_of_records)) : \
        

         (
         
          sizeof
         
         (
         
          parsed_ndef_msg_1_t
         
         ) + ((
         
          NFC_PARSER_M_DELTA
         
         ) *((uint32_t)(max_count_of_records) - 1)))
        

Macro for calculating the memory size required for holding the description of a message that consists of a certain number of NDEF records.

Parameters

[in]

max_count_of_records

Maximum number of records to hold.

Function Documentation

ret_code_t ndef_msg_parser	(	uint8_t *const	p_result_buf ,
		uint32_t *const	p_result_buf_len ,
		uint8_t *const	p_nfc_data ,
		uint32_t *const	p_nfc_data_len
	)

Function for parsing NFC NDEF messages.

This function parses NDEF messages using NDEF binary record descriptors.

Parameters

[out]	p_result_buf	Pointer to the buffer that will be used to hold the NDEF message descriptor. After parsing is completed successfully, the first address in the buffer is filled by the NDEF message descriptor ( nfc_ndef_msg_desc_t ), which provides a full description of the parsed NDEF message.
[in,out]	p_result_buf_len	As input: size of the buffer specified by p_result_buf . As output: size of the reserved (used) part of the buffer specified by p_result_buf .
[in]	p_nfc_data	Pointer to the data to be parsed.
[in,out]	p_nfc_data_len	As input: size of the NFC data in the p_nfc_data buffer. As output: size of the parsed message.

Return values

NRF_SUCCESS	If the function completed successfully.
NRF_ERROR_NO_MEM	If the provided buffer is too small to hold a one-record message or the buffer is too small to hold the actual result of the parsing.
NRF_ERROR_INVALID_LENGTH	If the expected message length is bigger than the amount of the provided input data.
NRF_ERROR_INVALID_DATA	If the message is not a valid NDEF message.

void ndef_msg_printout

(

nfc_ndef_msg_desc_t *const

p_msg_desc

)

Function for printing the parsed contents of an NDEF message.

Parameters

[in]

p_msg_desc

Pointer to the descriptor of the message that should be printed.