rx.h

TI公司的低功耗设计

/***********************************************************************************
    Filename: rx.h
***********************************************************************************/

#ifndef RX_H
#define RX_H


//----------------------------------------------------------------------------------
//  Constants 
//----------------------------------------------------------------------------------

// In this example, the threshold value is set such that an interrupt is generated
// when the FIFO is half full. It would be possible to set the threshold value
// differently - and thus get an interrupt earlier or later 
// (meaning that the FIFO is almost full).

#define RX_FIFO_THRESHOLD         0x07
#define RX_FIFO_START_THRESHOLD   0x00
#define RX_FIFO_SIZE              64
#define RX_OCCUPIED_FIFO          32    // Occupied space
#define RX_AVAILABLE_FIFO         32    // Free space


#define FIXED_PACKET_LENGTH       0x00
#define INFINITE_PACKET_LENGTH    0x02
#define INFINITE                  0
#define FIXED                     1
#define MAX_FIXED_LENGTH          256

#define RX_STATE_ERROR            3



//----------------------------------------------------------------------------------
//  Structs
//----------------------------------------------------------------------------------

// Struct. used to hold information used for RX
typedef struct RXinfoDescr {
    uint8  lengthField;         // The L-field in the WMBUS packet
    uint16 length;              // Total number of bytes to to be read from the RX FIFO
    uint16 bytesLeft;           // Bytes left to to be read from the RX FIFO
    uint8 *pByteIndex;          // Pointer to current position in the byte array
    uint8 format;               // Infinite or fixed packet mode
    uint8 start;                // Start of Packet
    uint8 complete;             // Packet received complete
    uint8 mode;                 // S-mode or T-mode
} RXinfoDescr;



//----------------------------------------------------------------------------------
// Function declarations
//----------------------------------------------------------------------------------
void rxInitMode(uint8 mode, const HAL_RF_CONFIG *myRfConfig, const uint8 myPaTable[], const uint8 myPaTableLen); 
uint16 rxRecvPacket(uint8* packet, uint8* bytes, uint8 mode);


#endif


/***********************************************************************************
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