📄 main.c
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#include "io430x14x.h"
#include "In430.h"
#define uchar unsigned char
#define uint unsigned int
#define CLK 32768
void InitTimerA(uint time_ms) //unit is ms
{
float Count;
TACTL &= ~((1<<4)|(1<<5)); //Stop Timer_A*/
//TACTL = (1<<9)|(1<<6)|(1<<7)|(1<<2); // MSCLK/8, clear TAR
TACTL = (1<<8)|(1<<2); //ACLK=32768, clear TAR
CCTL0 |= CCIE; // CCR0 interrupt disable
Count = CLK*time_ms;
CCR0 = (uint)(Count/1000);
TACTL |= (1<<4); // Start Timer_A in UP mode
//while(!(TACTL & TAIFG))
//{;}
}
void CpuInit(void)
{
uchar i;
WDTCTL = WDTPW + WDTHOLD; /* Stop WDT */
BCSCTL1 &= ~(XTS+XT2OFF); /* ACLK = LFXT1 = HF XTAL */
do
{
IFG1 &= ~OFIFG; /* Clear OSCFault flag */
for (i = 0xFF; i > 0; i--); /* Time for flag to set */
}
while ((IFG1 & OFIFG) == OFIFG); /* OSCFault flag still set? */
BCSCTL2 |= SELM1; /* MCLK = LFXT2 (safe) */
//////////////// IO_init ///////////////////
P1DIR |= (BIT3 + BIT4);//LED1,LED2 is output
P3DIR |= BIT0; //SPI_STE is output
P3DIR |=(BIT1 + BIT3);//SIMO,UCLK
P3DIR &= ~BIT2; //SOMI
P4DIR |= (BIT3 + BIT4 + BIT5);//RF_TX_EN, RF_PWR_UP , RF_TRX_EN is output
P4DIR &= ~(BIT0 + BIT1 + BIT2); // RF_DR , RF_AM , RF_CD is input
}
///////////////////////////////////////////////
void DelayUs(uint us);
void DelayMs(uint ms)
{
uint m;
for(m=0;m<ms;m++)
{
DelayUs(160);
}
}
/***********************************************************
** 函數名： DelayNop() **
** 形參： x **
** 返回值： － DelayNop(5) is 13us **
***********************************************************/
void DelayUs(uint us)
{
uchar m;
while(us--)
{
for(m=0;m<2;m++);
}
}
#define RXSIZE 32
#define TXSIZE 32
uchar TxBuf[TXSIZE],RxBuf[RXSIZE];
/*-------------------------------------------------------------------------------------------
nrf905配置寄存器宏定义 author:HotPower
nrf905配置寄存器(10Byte)
工作频率f=(422.4+CH_NO/10)*(1+HFREQ_PLL)MHz
-------------------------------------------------------------------------------------------*/
#define RX_ADDRESS 0x12345678 //接收有效地址(本方)
#define TX_ADDRESS 0x12345678 //发送有效地址(对方)
#define CH_NO_FREQ_422_4MHz 0x000 //工作频率422.4MHz(433MHz频段最低频率)
#define CH_NO_FREQ_422_5MHz 0x001 //工作频率422.5MHz
#define CH_NO_FREQ_425_0MHz 0x01a //工作频率425.0MHz
#define CH_NO_FREQ_427_5MHz 0x033 //工作频率427.5MHz
#define CH_NO_FREQ_430_0MHz 0x04c //工作频率430.0MHz
#define CH_NO_FREQ_433_0MHz 0x06a //工作频率433.0MHz(433MHz频段基准频率)
#define CH_NO_FREQ_433_1MHz 0x06b //工作频率433.1MHz
#define CH_NO_FREQ_433_2MHz 0x06c //工作频率433.2MHz
#define CH_NO_FREQ_434_7MHz 0x07b //工作频率434.7MHz
#define CH_NO_FREQ_473_5MHz 0x1ff //工作频率473.5MHz(433MHz频段最高频率)
#define CH_NO_FREQ_844_8MHz 0x000 //工作频率844.8MHz(868MHz频段最低频率)
#define CH_NO_FREQ_862_0MHz 0x056 //工作频率862.0MHz
#define CH_NO_FREQ_868_0MHz 0x074 //工作频率868.0MHz(868MHz频段基准频率)
#define CH_NO_FREQ_868_2MHz 0x075 //工作频率868.2MHz
#define CH_NO_FREQ_868_4MHz 0x076 //工作频率868.4MHz
#define CH_NO_FREQ_869_8MHz 0x07d //工作频率869.8MHz
#define CH_NO_FREQ_895_8MHz 0x0ff //工作频率895.8MHz
#define CH_NO_FREQ_896_0MHz 0x100 //工作频率896.0MHz
#define CH_NO_FREQ_900_0MHz 0x114 //工作频率900.0MHz
#define CH_NO_FREQ_902_2MHz 0x11f //工作频率902.2MHz
#define CH_NO_FREQ_902_4MHz 0x120 //工作频率902.4MHz
#define CH_NO_FREQ_915_0MHz 0x15f //工作频率915.0MHz(915MHz频段基准频率)
#define CH_NO_FREQ_927_8MHz 0x19f //工作频率927.8MHz
#define CH_NO_FREQ_947_0MHz 0x1ff //工作频率947.0MHz(915MHz频段最高频率)
#define CH_NO_FREQ CH_NO_FREQ_430_0MHz //工作频率433.0MHz
#define CH_NO_BYTE CH_NO_FREQ & 0xff //工作频率低8位 Byte0 01101100
#define AUTO_RETRAN 0x20 //重发数据包 Byte1.5 0
#define RX_RED_PWR 0x10 //接收低功耗模式 Byte1.4 0
#define PA_PWR__10dBm 0x00 //输出功率-10dBm Byte1.3~2 00
#define PA_PWR_2dBm 0x04 //输出功率+2dBm Byte1.3~2
#define PA_PWR_6dBm 0x08 //输出功率+6dBm Byte1.3~2
#define PA_PWR_10dBm 0x0c //输出功率+10dBm Byte1.3~2
#define HFREQ_PLL_433MHz 0x00 //工作在433MHz频段 Byte1.1 0
#define HFREQ_PLL_868MHz 0x02 //工作在868MHz频段 Byte1.1
#define HFREQ_PLL_915MHz 0x02 //工作在915MHz频段 Byte1.1
#define CH_NO_BIT8 CH_NO_FREQ >> 8 //工作频率第9位 Byte1.0 0
#define TX_AFW_1BYTE 1 * 16 //发送地址宽度1字节 Byte2.7~4
#define TX_AFW_2BYTE 2 * 16 //发送地址宽度2字节 Byte2.7~4
#define TX_AFW_3BYTE 3 * 16 //发送地址宽度3字节 Byte2.7~4
#define TX_AFW_4BYTE 4 * 16 //发送地址宽度4字节 Byte2.7~4 100
#define RX_AFW_1BYTE 1 //接收地址宽度1字节 Byte2.3~0
#define RX_AFW_2BYTE 2 //接收地址宽度2字节 Byte2.3~0
#define RX_AFW_3BYTE 3 //接收地址宽度3字节 Byte2.3~0
#define RX_AFW_4BYTE 4 //接收地址宽度4字节 Byte2.3~0 100
#define RX_PW_1BYTE 1 //接收数据宽度1字节 Byte3.5~0
#define RX_PW_4BYTE 4
#define RX_PW_32BYTE 32 //接收数据宽度32字节 Byte3.5~0 00100000
#define TX_PW_1BYTE 1 //发送数据宽度1字节 Byte4.5~0
#define TX_PW_4BYTE 4
#define TX_PW_32BYTE 32 //发送数据宽度32字节 Byte4.5~0 00100000
#define RX_ADDRESS_0 RX_ADDRESS >> 24 //接收有效地址第1字节 Byte5 11100111
#define RX_ADDRESS_1 (RX_ADDRESS >> 16) & 0xff //接收有效地址第2字节 Byte6 11100111
#define RX_ADDRESS_2 (RX_ADDRESS >> 8) & 0xff //接收有效地址第3字节 Byte7 11100111
#define RX_ADDRESS_3 RX_ADDRESS & 0xff //接收有效地址第4字节 Byte8 11100111
#define CRC_MODE_16BIT 0x80 //CRC16模式 Byte9.7 1
#define CRC_MODE_8BIT 0x00 //CRC8模式 Byte9.7
#define CRC_EN 0x40 //CRC使能 Byte9.6 1
#define CRC16_EN 0xc0 //CRC16模式使能 Byte9.7~6 11
#define CRC8_EN 0x40 //CRC8模式使能 Byte9.7~6
#define XOF_20MHz 0x20 //晶体振荡器频率20MHz Byte9.5~3
#define XOF_16MHz 0x18 //晶体振荡器频率16MHz Byte9.5~3 100
#define XOF_12MHz 0x10 //晶体振荡器频率12MHz Byte9.5~3
#define XOF_8MHz 0x08 //晶体振荡器频率8MHz Byte9.5~3
#define XOF_4MHz 0x00 //晶体振荡器频率4MHz Byte9.5~3
#define UP_CLK_EN 0x40 //输出时钟使能 Byte9.2 1
#define UP_CLK_FREQ_500kHz 0x03 //输出时钟频率500kHz Byte9.1~0 11
#define UP_CLK_FREQ_1MHz 0x02 //输出时钟频率1MHz Byte9.1~0
#define UP_CLK_FREQ_2MHz 0x01 //输出时钟频率2MHz Byte9.1~0
#define UP_CLK_FREQ_4MHz 0x00 //输出时钟频率4MHz Byte9.1~0
#define UP_CLK_EN_500kHz 0x43 //输出时钟频率500kHz Byte9.2~0 111
#define UP_CLK_EN_1MHz 0x42 //输出时钟频率1MHz Byte9.2~0
#define UP_CLK_EN_2MHz 0x41 //输出时钟频率2MHz Byte9.2~0
#define UP_CLK_EN_4MHz 0x40 //输出时钟频率4MHz Byte9.2~0
#define TX_ADDRESS_0 TX_ADDRESS >> 24 //发送有效地址第1字节
#define TX_ADDRESS_1 (TX_ADDRESS >> 16) & 0xff //发送有效地址第2字节
#define TX_ADDRESS_2 (TX_ADDRESS >> 8) & 0xff //发送有效地址第3字节
#define TX_ADDRESS_3 TX_ADDRESS & 0xff //发送有效地址第4字节
/*-----------------------------------------------
nrf905命令控制字 author:HotPower
------------------------------------------------*/
#define WC 0x00 // Write configuration register command
#define RC 0x10 // Read configuration register command
#define WTP 0x20 // Write TX Payload command
#define RTP 0x21 // Read TX Payload command
#define WTA 0x22 // Write TX Address command
#define RTA 0x23 // Read TX Address command
#define RRP 0x24 // Read RX Payload command
#define TX_EN_set P4OUT |= BIT3
#define TX_EN_clr P4OUT &= ~BIT3
#define PWR_UP_set P4OUT |= BIT4
#define PWR_UP_clr P4OUT & ~BIT4
#define TRX_CE_set P4OUT |= BIT5
#define TRX_CE_clr P4OUT &= ~BIT5
#define DR P4IN & BIT0
#define AM P4IN & BIT1
#define CD P4IN & BIT2
#define LED1_set P1OUT &= ~BIT3
#define LED1_clr P1OUT |= BIT3
#define LED2_set P1OUT &= ~BIT4
#define LED2_clr P1OUT |= BIT4
#define SPI_CSN_set P3OUT |= BIT0
#define SPI_CSN_clr P3OUT &= ~BIT0
#define SPI_SIMO_set P3OUT |= BIT1
#define SPI_SIMO_clr P3OUT &= ~BIT1
#define SPI_UCLK_set P3OUT |= BIT3
#define SPI_UCLK_clr P3OUT &= ~BIT3
#define SPI_SOMI P3IN & BIT2
#define PowerDown 1
#define Standby 2
#define RXMode 3
#define TXMode 4
#define TXData 5
//配置nRF905
uchar nrf905_SpiRW(uchar val);
void nrf905_Config(void)
{
//CLR(PORTB,CSN); // Spi 片选开
SPI_CSN_clr; //Spi 使能
nrf905_SpiRW(WC); // Write config command
nrf905_SpiRW(CH_NO_BYTE); //中心频率低8位
nrf905_SpiRW(PA_PWR_10dBm | HFREQ_PLL_433MHz); //发射+10dBm,发射频率433MHz,中心频率第9位=0
nrf905_SpiRW(TX_AFW_4BYTE | RX_AFW_4BYTE); //接收地址宽度4字节,发送地址宽度4字节
nrf905_SpiRW(RX_PW_4BYTE); //接收数据宽度4字节
nrf905_SpiRW(TX_PW_32BYTE); //发送数据宽度32字节
nrf905_SpiRW(RX_ADDRESS_0); //接收有效地址第1字节
nrf905_SpiRW(RX_ADDRESS_1); //接收有效地址第2字节
nrf905_SpiRW(RX_ADDRESS_2); //接收有效地址第3字节
nrf905_SpiRW(RX_ADDRESS_3); //接收有效地址第4字节
nrf905_SpiRW(CRC16_EN | XOF_16MHz); //CRC16模式使能,晶体振荡器频率16MHz
//SET(PORTB,CSN); // Disable Spi
SPI_CSN_set;
}
//PwrDown->StandBy
void nrf905_StandBy()
{
//SET(PORTB,PWR);
PWR_UP_set;
//CLR(PORTB,TRXCE);
TRX_CE_clr;
//CLR(PORTB,TX_EN);
TX_EN_clr;
}
//->PwrDown
void nrf905_Off()
{
//CLR(PORTB,PWR);
PWR_UP_clr;
}
//->ShockBurst Send
void nrf905_TxOn()
{
//SET(PORTB,PWR);
PWR_UP_set;
//SET(PORTB,TX_EN);
TX_EN_set;
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