m_pdu.h

[詳解]

#ifndef M_PDU_H_
#define M_PDU_H_
 
 
#include <stddef.h>
#include <stdint.h>
 
 
#define M_PDU_HEADER_SIZE (2u)
#define M_PDU_DATA_SIZE (432u)
#define M_PDU_LEN (M_PDU_HEADER_SIZE + M_PDU_DATA_SIZE)
 
typedef struct
{
  uint8_t header[M_PDU_HEADER_SIZE];
  uint8_t data[M_PDU_DATA_SIZE];
} M_PDU;
 
typedef enum
{
  M_PDU_PTR_NO_HDR = 0x07ff, // 11111111111b
  M_PDU_PTR_IDLE = 0x7fe // 11111111110b
} M_PDU_PTR;
 
void M_PDU_generate_byte_stream(const M_PDU* m_pdu,
                                uint8_t byte_stream[M_PDU_LEN]);
 
void M_PDU_setup_idle_m_pdu(M_PDU* m_pdu);
 
uint16_t M_PDU_get_1st_hdr_ptr(const M_PDU* m_pdu);
 
void M_PDU_set_1st_hdr_ptr(M_PDU* m_pdu,
                           uint16_t ptr);
 
const uint8_t* M_PDU_get_data_head(const M_PDU* m_pdu);
 
void M_PDU_set_data(M_PDU* m_pdu,
                    const uint8_t* data,
                    size_t offset,
                    size_t len);
 
#endif // M_PDU_H_