📄 include.h
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for (spiCnt = 0; spiCnt < (c); spiCnt++) {\
FASTSPI_TX(((BYTE*)(p))[spiCnt]);\
}\
} while(0)
#define FASTSPI_RX_WORD(x)\
do {\
SSPBUF = 0;\
SPI_WAITFOREORx();\
x = U1RXBUF << 8;\
SSPBUF = 0;\
SPI_WAITFOREORx();\
x |= SSPBUF;\
} while (0)
#define FASTSPI_TX_ADDR(a)\
do {\
SSPBUF = a;\
SPI_WAITFOREOTx();\
} while (0)
#define FASTSPI_RX_ADDR(a)\
do {\
SSPBUF = (a) | 0x40;\
SPI_WAITFOREOTx();\
} while (0)
/***********************************************************
FAST SPI: Register access
***********************************************************/
// s = command strobe
// a = register address
// v = register value
#define FASTSPI_STROBE(s) \
do {\
SPI_ENABLE();\
FASTSPI_TX_ADDR(s);\
SPI_DISABLE();\
} while (0)
#define FASTSPI_SETREG(a,v)\
do {\
SPI_ENABLE();\
FASTSPI_TX_ADDR(a);\
FASTSPI_TX((BYTE) ((v) >> 8));\
FASTSPI_TX((BYTE) (v));\
SPI_DISABLE();\
} while (0)
#define FASTSPI_GETREG(a,v)\
do {\
SPI_ENABLE();\
FASTSPI_RX_ADDR(a);\
v= (BYTE)U1RXBUF;\
FASTSPI_RX_WORD(v);\
halWait(1);\
SPI_DISABLE();\
} while (0)
// Updates the SPI status byte
#define FASTSPI_UPD_STATUS(s)\
do {\
SPI_ENABLE();\
SSPBUF = CC2420_SNOP;\
SPI_WAITFOREOTx();\
s = SSPBUF;\
SPI_DISABLE();\
} while (0)
/***********************************************************
FAST SPI: FIFO Access
***********************************************************/
// p = pointer to the byte array to be read/written
// c = the number of bytes to read/write
// b = single data byte
#define FASTSPI_WRITE_FIFO(p,c)\
do {\
UINT8 i;\
SPI_ENABLE();\
FASTSPI_TX_ADDR(CC2420_TXFIFO);\
for (i = 0; i < (c); i++) {\
FASTSPI_TX(((BYTE*)(p))[i]);\
}\
SPI_DISABLE();\
} while (0)
#define FASTSPI_WRITE_FIFO_NOCE(p,c)\
do {\
UINT8 spiCnt;\
FASTSPI_TX_ADDR(CC2420_TXFIFO);\
for (spiCnt = 0; spiCnt < (c); spiCnt++) {\
FASTSPI_TX(((BYTE*)(p))[spiCnt]);\
}\
} while (0)
#define FASTSPI_READ_FIFO_BYTE(b)\
do {\
SPI_ENABLE();\
FASTSPI_RX_ADDR(CC2420_RXFIFO);\
SSPBUF;\
FASTSPI_RX(b);\
halWait(1);\
SPI_DISABLE();\
} while (0)
#define FASTSPI_READ_FIFO_NO_WAIT(p,c)\
do {\
UINT8 spiCnt;\
SPI_ENABLE();\
FASTSPI_RX_ADDR(CC2420_RXFIFO);\
SSPBUF;\
for (spiCnt = 0; spiCnt < (c); spiCnt++) {\
FASTSPI_RX(((BYTE*)(p))[spiCnt]);\
}\
halWait(1);\
SPI_DISABLE();\
} while (0)
#define FASTSPI_READ_FIFO_GARBAGE(c)\
do {\
UINT8 spiCnt;\
SPI_ENABLE();\
FASTSPI_RX_ADDR(CC2420_RXFIFO);\
SSPBUF;\
for (spiCnt = 0; spiCnt < (c); spiCnt++) {\
FASTSPI_RX_GARBAGE();\
}\
halWait(1);\
SPI_DISABLE();\
} while (0)
/***********************************************************
FAST SPI: CC2420 RAM access (big or little-endian order)
***********************************************************/
// FAST SPI: CC2420 RAM access (big or little-endian order)
// p = pointer to the variable to be written
// a = the CC2420 RAM address
// c = the number of bytes to write
// n = counter variable which is used in for/while loops (UINT8)
//
// Example of usage:
// UINT8 n;
// UINT16 shortAddress = 0xBEEF;
// FASTSPI_WRITE_RAM_LE(&shortAddress, CC2420RAM_SHORTADDR, 2);
#define FASTSPI_WRITE_RAM_LE(p,a,c,n)\
do {\
SPI_ENABLE();\
FASTSPI_TX(0x80 | (a & 0x7F));\
FASTSPI_TX((a >> 1) & 0xC0);\
for (n = 0; n < (c); n++) {\
FASTSPI_TX(((BYTE*)(p))[n]);\
}\
SPI_DISABLE();\
} while (0)
////////////////////////////////////////////////////////////////////
// Common include files
//-------------------------------------------------------------------------------------------------------
// CC2420 register constants
#define CC2420_SNOP 0x00
#define CC2420_SXOSCON 0x01
#define CC2420_STXCAL 0x02
#define CC2420_SRXON 0x03
#define CC2420_STXON 0x04
#define CC2420_STXONCCA 0x05
#define CC2420_SRFOFF 0x06
#define CC2420_SXOSCOFF 0x07
#define CC2420_SFLUSHRX 0x08
#define CC2420_SFLUSHTX 0x09
#define CC2420_SACK 0x0A
#define CC2420_SACKPEND 0x0B
#define CC2420_SRXDEC 0x0C
#define CC2420_STXENC 0x0D
#define CC2420_SAES 0x0E
#define CC2420_MAIN 0x10
#define CC2420_MDMCTRL0 0x11
#define CC2420_MDMCTRL1 0x12
#define CC2420_RSSI 0x13
#define CC2420_SYNCWORD 0x14
#define CC2420_TXCTRL 0x15
#define CC2420_RXCTRL0 0x16
#define CC2420_RXCTRL1 0x17
#define CC2420_FSCTRL 0x18
#define CC2420_SECCTRL0 0x19
#define CC2420_SECCTRL1 0x1A
#define CC2420_BATTMON 0x1B
#define CC2420_IOCFG0 0x1C
#define CC2420_IOCFG1 0x1D
#define CC2420_MANFIDL 0x1E
#define CC2420_MANFIDH 0x1F
#define CC2420_FSMTC 0x20
#define CC2420_MANAND 0x21
#define CC2420_MANOR 0x22
#define CC2420_AGCCTRL 0x23
#define CC2420_AGCTST0 0x24
#define CC2420_AGCTST1 0x25
#define CC2420_AGCTST2 0x26
#define CC2420_FSTST0 0x27
#define CC2420_FSTST1 0x28
#define CC2420_FSTST2 0x29
#define CC2420_FSTST3 0x2A
#define CC2420_RXBPFTST 0x2B
#define CC2420_FSMSTATE 0x2C
#define CC2420_ADCTST 0x2D
#define CC2420_DACTST 0x2E
#define CC2420_TOPTST 0x2F
#define CC2420_RESERVED 0x30
#define CC2420_TXFIFO 0x3E
#define CC2420_RXFIFO 0x3F
//-------------------------------------------------------------------------------------------------------
//-------------------------------------------------------------------------------------------------------
// Memory
// Sizes
#define CC2420_RAM_SIZE 368
#define CC2420_FIFO_SIZE 128
// Addresses
#define CC2420RAM_TXFIFO 0x000
#define CC2420RAM_RXFIFO 0x080
#define CC2420RAM_KEY0 0x100
#define CC2420RAM_RXNONCE 0x110
#define CC2420RAM_SABUF 0x120
#define CC2420RAM_KEY1 0x130
#define CC2420RAM_TXNONCE 0x140
#define CC2420RAM_CBCSTATE 0x150
#define CC2420RAM_IEEEADDR 0x160
#define CC2420RAM_PANID 0x168
#define CC2420RAM_SHORTADDR 0x16A
//-------------------------------------------------------------------------------------------------------
//-------------------------------------------------------------------------------------------------------
// Status byte
#define CC2420_XOSC16M_STABLE 6
#define CC2420_TX_UNDERFLOW 5
#define CC2420_ENC_BUSY 4
#define CC2420_TX_ACTIVE 3
#define CC2420_LOCK 2
#define CC2420_RSSI_VALID 1
//-------------------------------------------------------------------------------------------------------
//-------------------------------------------------------------------------------------------------------
// SECCTRL0
#define CC2420_SECCTRL0_NO_SECURITY 0x0000
#define CC2420_SECCTRL0_CBC_MAC 0x0001
#define CC2420_SECCTRL0_CTR 0x0002
#define CC2420_SECCTRL0_CCM 0x0003
#define CC2420_SECCTRL0_SEC_M_IDX 2
#define CC2420_SECCTRL0_RXKEYSEL0 0x0000
#define CC2420_SECCTRL0_RXKEYSEL1 0x0020
#define CC2420_SECCTRL0_TXKEYSEL0 0x0000
#define CC2420_SECCTRL0_TXKEYSEL1 0x0040
#define CC2420_SECCTRL0_SEC_CBC_HEAD 0x0100
#define CC2420_SECCTRL0_RXFIFO_PROTECTION 0x0200
//-------------------------------------------------------------------------------------------------------
// RSSI to Energy Detection conversion
// RSSI_OFFSET defines the RSSI level where the PLME.ED generates a zero-value
#define RSSI_OFFSET -38
#define RSSI_2_ED(rssi) ((rssi) < RSSI_OFFSET ? 0 : ((rssi) - (RSSI_OFFSET)))
#define ED_2_LQI(ed) (((ed) > 63 ? 255 : ((ed) << 2)))
//-------------------------------------------------------------------------------------------------------
//-------------------------------------------------------------------------------------------------------
// Constants concerned with the Basic RF packet format
// Packet overhead ((frame control field, sequence number, PAN ID, destination and source) + (footer))
// Note that the length byte itself is not included included in the packet length
#define BASIC_RF_PACKET_OVERHEAD_SIZE ((2 + 1 + 2 + 2 + 2) + (2))
#define BASIC_RF_MAX_PAYLOAD_SIZE (127 - BASIC_RF_PACKET_OVERHEAD_SIZE)
#define BASIC_RF_ACK_PACKET_SIZE 5
// The time it takes for the acknowledgment packet to be received after the data packet has been
// transmitted
#define BASIC_RF_ACK_DURATION (0.5 * 32 * 2 * ((4 + 1) + (1) + (2 + 1) + (2)))
#define BASIC_RF_SYMBOL_DURATION (32 * 0.5)
// The length byte
#define BASIC_RF_LENGTH_MASK 0x7F
// Frame control field
#define BASIC_RF_FCF_NOACK 0x8841
#define BASIC_RF_FCF_ACK 0x8861
#define BASIC_RF_FCF_ACK_BM 0x0020
#define BASIC_RF_FCF_BM (~BASIC_RF_FCF_ACK_BM)
#define BASIC_RF_ACK_FCF 0x0002
// Footer
#define BASIC_RF_CRC_OK_BM 0x80
//-------------------------------------------------------------------------------------------------------
/*******************************************************************************************************
*******************************************************************************************************
************************** Packet transmission **************************
*******************************************************************************************************
*******************************************************************************************************/
//-------------------------------------------------------------------------------------------------------
// The data structure which is used to transmit packets
typedef struct {
WORD destPanId;
WORD destAddr;
INT8 length;
BYTE *pPayload;
BOOL ackRequest;
} BASIC_RF_TX_INFO;
//-------------------------------------------------------------------------------------------------------
/*******************************************************************************************************
*******************************************************************************************************
************************** Packet reception **************************
*******************************************************************************************************
*******************************************************************************************************/
//-------------------------------------------------------------------------------------------------------
// The receive struct:
typedef struct {
BYTE seqNumber;
WORD srcAddr;
WORD srcPanId;
INT8 length;
BYTE *pPayload;
BOOL ackRequest;
INT8 rssi;
} BASIC_RF_RX_INFO;
//-------------------------------------------------------------------------------------------------------
/*******************************************************************************************************
*******************************************************************************************************
************************** Initialization **************************
*******************************************************************************************************
*******************************************************************************************************/
//-------------------------------------------------------------------------------------------------------
// The RF settings structure:
typedef struct {
BASIC_RF_RX_INFO *pRxInfo;
UINT8 txSeqNumber;
volatile BOOL ackReceived;
WORD panId;
WORD myAddr;
BOOL receiveOn;
} BASIC_RF_SETTINGS;
//-------------------------------------------------------------------------------------------------------
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