📄 halcc2420.h
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/*******************************************************************************************************
CC2420 硬件抽象库
*******************************************************************************************************/
#ifndef HALCC2420_H
#define HALCC2420_H
// CC2420 寄存器常量
#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
// 存储器大小
#define CC2420_RAM_SIZE 368
#define CC2420_FIFO_SIZE 128
//CC2420 RAM 地址空间
#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
// 状态字节
#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
//安全控制寄存器0SECCTRL0
#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
/*******************************************************************************************************
ATmega128<-------->CC2420 SPI接口
*******************************************************************************************************/
// 初始化
// 使能SPI，选择“master”模式，时钟速率FCK/2，SPI模式0
//? SPSR = BV(SPI2X);
#define SPI_INIT() \
do { \
SPCR = BV(SPE) | BV(MSTR) | BV(SPR0); \
SPSR = BV(SPI2X); \
} while (0)
// FAST SPI: 低级别函数
// x = value (BYTE or WORD)
// p = pointer to the byte array to operate on
// c = the byte count
// SPI_ENABLE() 和 SPI_DISABLE() 在有关节点的定义文件中定义
#define FASTSPI_WAIT() \
do { \
while (!(SPSR & BV(SPIF))); \
} while (0)
#define FASTSPI_TX(x) \
do { \
SPDR = x; \
FASTSPI_WAIT(); \
} while (0)
#define FASTSPI_RX(x) \
do { \
SPDR = 0; \
FASTSPI_WAIT(); \
x = SPDR; \
} while (0)
#define FASTSPI_RX_GARBAGE() \
do { \
SPDR = 0; \
FASTSPI_WAIT(); \
} while (0)
//先低后高
#define FASTSPI_RX_WORD_LE(x) \
do { \
SPDR = 0; \
FASTSPI_WAIT(); \
x = SPDR; \
SPDR = 0; \
FASTSPI_WAIT(); \
x |= SPDR << 8; \
} while (0)
#define FASTSPI_RX_WORD(x) \
do { \
SPDR = 0; \
FASTSPI_WAIT(); \
x = SPDR << 8; \
SPDR = 0; \
FASTSPI_WAIT(); \
x |= SPDR; \
} while (0)
#define FASTSPI_RX_MANY(p,c) \
do { \
UINT8 spiCnt; \
for (spiCnt = 0; spiCnt < (c); spiCnt++) { \
FASTSPI_RX((p)[spiCnt]); \
} \
} while (0)
// 传输寄存器地址：
#define FASTSPI_TX_ADDR(a) \
do { \
SPDR = a; \
FASTSPI_WAIT(); \
} while (0)
// 接收寄存器地址
#define FASTSPI_RX_ADDR(a) \
do { \
SPDR = (a) | 0x40; \
FASTSPI_WAIT(); \
} while (0)
/***********************************************************************************************
FAST SPI:寄存器访问
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); \
FASTSPI_RX_WORD(v); \
SPI_DISABLE(); \
} while (0)
// 更新SPI状态字节
#define FASTSPI_UPD_STATUS(s) \
do { \
SPI_ENABLE(); \
FASTSPI_TX_ADDR(CC2420_SNOP); \
s = SPDR; \
SPI_DISABLE(); \
} while (0)
/***********************************************************************************************
// FAST SPI: FIFO 访问
// p = 指向要读取/写入的字节数组的指针
// c = 要读取/写入的字节数目
// b = 单个数据字节
***********************************************************************************************/
#define FASTSPI_WRITE_FIFO(p,c) \
do { \
UINT8 spiCnt; \
SPI_ENABLE(); \
FASTSPI_TX_ADDR(CC2420_TXFIFO); \
for (spiCnt = 0; spiCnt < (c); spiCnt++) { \
FASTSPI_TX(((BYTE*)(p))[spiCnt]); \
} \
SPI_DISABLE(); \
} while (0)
#define FASTSPI_READ_FIFO(p,c) \
do { \
UINT8 spiCnt; \
SPI_ENABLE(); \
FASTSPI_RX_ADDR(CC2420_RXFIFO); \
for (spiCnt = 0; spiCnt < (c); spiCnt++) { \
while (!FIFO_IS_1); \
FASTSPI_RX(((BYTE*)(p))[spiCnt]); \
} \
SPI_DISABLE(); \
} while (0)
#define FASTSPI_READ_FIFO_BYTE(b) \
do { \
SPI_ENABLE(); \
FASTSPI_RX_ADDR(CC2420_RXFIFO); \
FASTSPI_RX(b); \
SPI_DISABLE(); \
} while (0)
#define FASTSPI_READ_FIFO_NO_WAIT(p,c) \
do { \
UINT8 spiCnt; \
SPI_ENABLE(); \
FASTSPI_RX_ADDR(CC2420_RXFIFO); \
for (spiCnt = 0; spiCnt < (c); spiCnt++) { \
FASTSPI_RX(((BYTE*)(p))[spiCnt]); \
} \
SPI_DISABLE(); \
} while (0)
#define FASTSPI_READ_FIFO_GARBAGE(c) \
do { \
UINT8 spiCnt; \
SPI_ENABLE(); \
FASTSPI_RX_ADDR(CC2420_RXFIFO); \
for (spiCnt = 0; ((spiCnt < (c)) && (FIFO_IS_1)); spiCnt++) { \
FASTSPI_RX_GARBAGE(); \
} \
SPI_DISABLE(); \
} while (0)
/***********************************************************************************************
FAST SPI: CC2420 RAM 访问 (大端或小端字节序)
p = 指向将要被写入的变量
a = CC2420 RAM 地址
c = 要写入的字节数
n = 计数变量，用在for/while循环
使用的例子：
UINT8 n;
UINT16 shortAddress = 0xBEEF;
FASTSPI_WRITE_RAM_LE(&shortAddress, CC2420RAM_SHORTADDR, 2, n);
***********************************************************************************************/
#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)
#define FASTSPI_READ_RAM_LE(p,a,c,n) \
do { \
SPI_ENABLE(); \
FASTSPI_TX(0x80 | (a & 0x7F)); \
FASTSPI_TX(((a >> 1) & 0xC0) | 0x20); \
for (n = 0; n < (c); n++) { \
FASTSPI_RX(((BYTE*)(p))[n]); \
} \
SPI_DISABLE(); \
} while (0)
#define FASTSPI_WRITE_RAM(p,a,c,n) \
do { \
SPI_ENABLE(); \
FASTSPI_TX(0x80 | (a & 0x7F)); \
FASTSPI_TX((a >> 1) & 0xC0); \
n = c; \
do { \
FASTSPI_TX(((BYTE*)(p))[--n]); \
} while (n); \
SPI_DISABLE(); \
} while (0)
#define FASTSPI_READ_RAM(p,a,c,n) \
do { \
SPI_ENABLE(); \
FASTSPI_TX(0x80 | (a & 0x7F)); \
FASTSPI_TX(((a >> 1) & 0xC0) | 0x20); \
n = c; \
do { \
FASTSPI_RX(((BYTE*)(p))[--n]); \
} while (n); \
SPI_DISABLE(); \
} while (0)
// 其他有用的SPI宏
#define FASTSPI_RESET_CC2420() \
do { \
FASTSPI_SETREG(CC2420_MAIN, 0x0000); \
FASTSPI_SETREG(CC2420_MAIN, 0xF800); \
} while (0)
// Sets the PWM duty cycle
//#define PWM0_SET_DUTY_CYCLE(dutyCycle) do { OCR0 = (dutyCycle); } while (0)
#endif
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