📄 cc1100.c
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/*C**************************************************************************
* NAME: cc1100.c
*----------------------------------------------------------------------------
* Copyright (c) 2007 endylu
*----------------------------------------------------------------------------
* RELEASE: M8-cc1100
* REVISION: 1.0
*----------------------------------------------------------------------------
* PURPOSE:
* This file include cc1100 receive and send function
*****************************************************************************/
/*_____ I N C L U D E S ____________________________________________________*/
#include <iom8v.h>
#include <macros.h>
#include "main.h"
/*_____ M A C R O S ________________________________________________________*/
/*_____ D E F I N I T I O N ________________________________________________*/
//------------------------------------------------------------------------------------------------------
// Chipcon
// Product = CC1100
// Chip version = E
// Crystal accuracy = 40 ppm
// X-tal frequency = 26 MHz
// RF output power = 0 dBm
// RX filterbandwidth = 540.000000 kHz
// Deviation = 0.000000
// Datarate = 250.000000 kbps
// Modulation = (7) MSK
// Manchester enable = (0) Manchester disabled
// RF Frequency = 433.000000 MHz
// Channel spacing = 199.951172 kHz
// Channel number = 0
// Optimization = Sensitivity
// Sync mode = (3) 30/32 sync word bits detected
// Format of RX/TX data = (0) Normal mode, use FIFOs for RX and TX
// CRC operation = (1) CRC calculation in TX and CRC check in RX enabled
// Forward Error Correction = (0) FEC disabled
// Length configuration = (1) Variable length packets, packet length configured by the first received byte after sync word.
// Packetlength = 255
// Preamble count = (2) 4 bytes
// Append status = 1
// Address check = (0) No address check
// FIFO autoflush = 0
// Device address = 0
// GDO0 signal selection = ( 6) Asserts when sync word has been sent / received, and de-asserts at the end of the packet
// GDO2 signal selection = (11) Serial Clock
const RF_SETTINGS rfSettings = {
0x00,
0x02, // FSCTRL1 Frequency synthesizer control.
0x00, // FSCTRL0 Frequency synthesizer control.
0x10, // FREQ2 Frequency control word, high byte.
0x33, // FREQ1 Frequency control word, middle byte.
0x62, // FREQ0 Frequency control word, low byte.
0x2D, // MDMCFG4 Modem configuration.
0x3B, // MDMCFG3 Modem configuration.
0x73, // MDMCFG2 Modem configuration.
0xa2, // MDMCFG1 Modem configuration.
0xF8, // MDMCFG0 Modem configuration.
0x00, // CHANNR Channel number.
0x00, // DEVIATN Modem deviation setting (when FSK modulation is enabled).
0xB6, // FREND1 Front end RX configuration.
0x10, // FREND0 Front end RX configuration.
0x18, // MCSM0 Main Radio Control State Machine configuration.
0x1D, // FOCCFG Frequency Offset Compensation Configuration.
0x1C, // BSCFG Bit synchronization Configuration.
0xC7, // AGCCTRL2 AGC control.
0x00, // AGCCTRL1 AGC control.
0xB2, // AGCCTRL0 AGC control.
0xEA, // FSCAL3 Frequency synthesizer calibration.
0x0A, // FSCAL2 Frequency synthesizer calibration.
0x00, // FSCAL1 Frequency synthesizer calibration.
0x11, // FSCAL0 Frequency synthesizer calibration.
0x59, // FSTEST Frequency synthesizer calibration.
0x88, // TEST2 Various test settings.
0x31, // TEST1 Various test settings.
0x0B, // TEST0 Various test settings.
0x03, //IOCFG2 GDO2 output pin configuration.
0x07, // IOCFG0 GDO0 output pin configuration. Refer to SmartRF?Studio User Manual for detailed pseudo register explanation.
0x05, // PKTCTRL1 Packet automation control.
0x45, // PKTCTRL0 Packet automation control.
ID_Oneself, // ADDR Device address.
0xf0, // PKTLEN Packet length.
};
/*_____ D E C L A R A T I O N ______________________________________________*/
//*****************************************************************************************
//函数名：delay(unsigned int s)
//输入：时间
//输出：无
//功能描述：普通廷时
//*****************************************************************************************
void delay(unsigned int s)
{
unsigned int i;
for(i=0; i<s; i++);
for(i=0; i<s; i++);
}
void halWait(INT16U timeout) {
do {
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
} while (--timeout);
}
/*****************************************************************************************
//函数名:UartInit()
//输入：无
//输出：无
//功能描述：串口初始化程序
/*****************************************************************************************/
void UartInit(void) //用232串口发数据到PC，收集数据
{
UCSRB=(1<<RXEN)|(1<<TXEN);//允许发送和接收
UBRRL= (F_osc/9600/16-1)%256;
UBRRH= (F_osc/9600/16-1)/256;
UCSRC=(1<<URSEL)|(1<<UCSZ1)|(1<<UCSZ0);//8位数据+1位STOP位
}
void SpiInit(void)
{
DDRB|=(1<<SPI_DO);
DDRB|=(1<<SPI_Clock);
DDRB|=(1<<Chip_Select);
PORTB|=(1<<SPI_DI);
CSN_0;
SCK_0;
CSN_1;
}
/*****************************************************************************************
//函数名：CpuInit()
//输入：无
//输出：无
//功能描述：SPI初始化程序
/*****************************************************************************************/
void CpuInit(void)
{
UartInit();
SpiInit();
delay(5000);
}
//*****************************************************************************************
//函数名：SpisendByte(INT8U dat)
//输入：发送的数据
//输出：无
//功能描述：SPI发送一个字节
//*****************************************************************************************
INT8U SpiTxRxByte(INT8U dat)
{
INT8U i,temp;
temp = 0;
SCK_0;
for(i=0; i<8; i++)
{
if(dat & 0x80)
{
MOSI_1;
}
else MOSI_0;
dat <<= 1;
SCK_1;
_nop_();
_nop_();
temp <<= 1;
if(MISO)temp++;
SCK_0;
_nop_();
_nop_();
}
return temp;
}
//*****************************************************************************************
//函数名：void RESET_CC1100(void)
//输入：无
//输出：无
//功能描述：复位CC1100
//*****************************************************************************************
void RESET_CC1100(void)
{
CSN_0;
while (GDO0);
SpiTxRxByte(CCxxx0_SRES); //写入复位命令
while (GDO0);
CSN_1;
}
//*****************************************************************************************
//函数名：void POWER_UP_RESET_CC1100(void)
//输入：无
//输出：无
//功能描述：上电复位CC1100
//*****************************************************************************************
void POWER_UP_RESET_CC1100(void)
{
CSN_1;
halWait(1);
CSN_0;
halWait(1);
CSN_1;
halWait(41);
RESET_CC1100(); //复位CC1100
}
//*****************************************************************************************
//函数名：void halSpiWriteReg(INT8U addr, INT8U value)
//输入：地址和配置字
//输出：无
//功能描述：SPI写寄存器
//*****************************************************************************************
void halSpiWriteReg(INT8U addr, INT8U value)
{
CSN_0;
while (GDO0);
SpiTxRxByte(addr); //写地址
SpiTxRxByte(value); //写入配置
CSN_1;
}
//*****************************************************************************************
//函数名：void halSpiWriteBurstReg(INT8U addr, INT8U *buffer, INT8U count)
//输入：地址，写入缓冲区，写入个数
//输出：无
//功能描述：SPI连续写配置寄存器
//*****************************************************************************************
void halSpiWriteBurstReg(INT8U addr, INT8U *buffer, INT8U count)
{
INT8U i, temp;
temp = addr | WRITE_BURST;
CSN_0;
while (GDO0);
SpiTxRxByte(temp);
for (i = 0; i < count; i++)
{
SpiTxRxByte(buffer[i]);
}
CSN_1;
}
//*****************************************************************************************
//函数名：void halSpiStrobe(INT8U strobe)
//输入：命令
//输出：无
//功能描述：SPI写命令
//*****************************************************************************************
void halSpiStrobe(INT8U strobe)
{
CSN_0;
while (GDO0);
SpiTxRxByte(strobe); //写入命令
CSN_1;
}
//*****************************************************************************************
//函数名：INT8U halSpiReadReg(INT8U addr)
//输入：地址
//输出：该寄存器的配置字
//功能描述：SPI读寄存器
//*****************************************************************************************
INT8U halSpiReadReg(INT8U addr)
{
INT8U temp, value;
temp = addr|READ_SINGLE;//读寄存器命令
CSN_0;
while (GDO0);
SpiTxRxByte(temp);
value = SpiTxRxByte(0);
CSN_1;
return value;
}
//*****************************************************************************************
//函数名：void halSpiReadBurstReg(INT8U addr, INT8U *buffer, INT8U count)
//输入：地址，读出数据后暂存的缓冲区，读出配置个数
//输出：无
//功能描述：SPI连续写配置寄存器
//*****************************************************************************************
void halSpiReadBurstReg(INT8U addr, INT8U *buffer, INT8U count)
{
INT8U i,temp;
temp = addr | READ_BURST; //写入要读的配置寄存器地址和读命令
CSN_0;
while (GDO0);
SpiTxRxByte(temp);
for (i = 0; i < count; i++)
{
buffer[i] = SpiTxRxByte(0);
}
CSN_1;
}
//*****************************************************************************************
//函数名：INT8U halSpiReadReg(INT8U addr)
//输入：地址
//输出：该状态寄存器当前值
//功能描述：SPI读状态寄存器
//*****************************************************************************************
INT8U halSpiReadStatus(INT8U addr)
{
INT8U value,temp;
temp = addr | READ_BURST; //写入要读的状态寄存器的地址同时写入读命令
CSN_0;
while (GDO0);
SpiTxRxByte(temp);
value = SpiTxRxByte(0);
CSN_1;
return value;
}
//*****************************************************************************************
//函数名：void halRfWriteRfSettings(RF_SETTINGS *pRfSettings)
//输入：无
//输出：无
//功能描述：配置CC1100的寄存器
//*****************************************************************************************
void halRfWriteRfSettings(void)
{
//halSpiWriteReg(CCxxx0_FIFOTHR,0x09);
//halSpiWriteReg(CCxxx0_MCSM1,0x00); //CCA,没有作通
halSpiWriteReg(CCxxx0_FSCTRL0, rfSettings.FSCTRL2);//自已加的
// Write register settings
halSpiWriteReg(CCxxx0_FSCTRL1, rfSettings.FSCTRL1);
halSpiWriteReg(CCxxx0_FSCTRL0, rfSettings.FSCTRL0);
halSpiWriteReg(CCxxx0_FREQ2, rfSettings.FREQ2);
halSpiWriteReg(CCxxx0_FREQ1, rfSettings.FREQ1);
halSpiWriteReg(CCxxx0_FREQ0, rfSettings.FREQ0);
halSpiWriteReg(CCxxx0_MDMCFG4, rfSettings.MDMCFG4);
halSpiWriteReg(CCxxx0_MDMCFG3, rfSettings.MDMCFG3);
halSpiWriteReg(CCxxx0_MDMCFG2, rfSettings.MDMCFG2);
halSpiWriteReg(CCxxx0_MDMCFG1, rfSettings.MDMCFG1);
halSpiWriteReg(CCxxx0_MDMCFG0, rfSettings.MDMCFG0);
halSpiWriteReg(CCxxx0_CHANNR, rfSettings.CHANNR);
halSpiWriteReg(CCxxx0_FSCAL0, rfSettings.FSCAL0);
halSpiWriteReg(CCxxx0_FSTEST, rfSettings.FSTEST);
halSpiWriteReg(CCxxx0_TEST2, rfSettings.TEST2);
halSpiWriteReg(CCxxx0_TEST1, rfSettings.TEST1);
halSpiWriteReg(CCxxx0_TEST0, rfSettings.TEST0);
halSpiWriteReg(CCxxx0_IOCFG2, rfSettings.IOCFG2);
halSpiWriteReg(CCxxx0_IOCFG0, rfSettings.IOCFG0);
halSpiWriteReg(CCxxx0_PKTCTRL1, rfSettings.PKTCTRL1);
halSpiWriteReg(CCxxx0_PKTCTRL0, rfSettings.PKTCTRL0);
halSpiWriteReg(CCxxx0_ADDR, rfSettings.ADDR);
halSpiWriteReg(CCxxx0_PKTLEN, rfSettings.PKTLEN);
}
//*****************************************************************************************
//函数名：
//输入：
//输出：
//功能描述：CC1100发送主叫数据
//*****************************************************************************************
void halRfSendPacket(INT8U *txBuffer, INT8U size)
{
halSpiWriteReg(CCxxx0_TXFIFO, size+2);
halSpiWriteReg(CCxxx0_TXFIFO, ID_Opponent);
halSpiWriteReg(CCxxx0_TXFIFO, ID_Oneself);
halSpiWriteBurstReg(CCxxx0_TXFIFO, txBuffer, size); //写入要发送的数据
halSpiStrobe(CCxxx0_STX); //进入发送模式发送数据
// Wait for GDO0 to be set - > sync transmitted
while (!GDO0);
// Wait for GDO0 to be set - > sync transmitted
while (GDO0);
halSpiStrobe(CCxxx0_SFTX); //清洗发送缓冲区
}
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