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器件型号：CC1125 尊敬的 TI 团队：
我使用的模式是同步串行模式，9600bps 的无线波特率可以正常传输和接收，但19200bps 的无线波特率只能接收，TX 不正确。 我使用示波器测量 TX_ RX_ CLK 波形、发现速率波形不正确、TX_数据波形也错误我的配置 IOCFG3=0x08、IOCFG2=0x09、IOCFG1=0XB0、IOCFG0=0X30.9600bps 和19200bps 开关是符号、速率1/2/3与频率偏移不同。 其他所有内容都是相同的。 谢谢你。
下面是我的 SCH 和波形、CLK 为330KHz、无数据 波形。
static const registerSetting_t registerSettings[]=
{
{CC112X_IOCFG3, 0x08},
{CC112X_IOCFG2, 0x09},
{CC112X_IOCFG1, 0xB0},
{CC112X_IOCFG0, 0x30},
{CC112X_SYNC3, 0xCC},
{CC112X_SYNC2, 0xCC},
{CC112X_SYNC1, 0xCC},
{CC112X_SYNC0, 0xCC},
{CC112X_SYNC_CFG1, 0x0B},
{CC112X_SYNC_CFG0, 0x17},
{CC112X_DEVIATION_M, 0x70}, // Frequency Deviation
{CC112X_MODCFG_DEV_E, 0x0A},
{CC112X_DCFILT_CFG, 0x56},
{CC112X_PREAMBLE_CFG1, 0x00},
{CC112X_PREAMBLE_CFG0, 0x35},
{CC112X_FREQ_IF_CFG, 0x31},
{CC112X_IQIC, 0xCE},
{CC112X_CHAN_BW, 0x0D},// RX Filter BW
{CC112X_MDMCFG1, 0x06},
//{CC112X_MDMCFG0, 0x0A}, //RX
{CC112X_MDMCFG0, 0x05}, //TX
{CC112X_SYMBOL_RATE2, 0x7F},
{CC112X_SYMBOL_RATE1, 0x75},
{CC112X_SYMBOL_RATE0, 0x10},
// {CC112X_AGC_REF, 0x20},
{CC112X_AGC_CS_THR, 0xEA},
//{CC112X_AGC_CFG1, 0x0A}, //RX
{CC112X_AGC_CFG1, 0x2D}, //TX
{CC112X_AGC_CFG0, 0x5F},
{CC112X_FIFO_CFG, 0x00},
{CC112X_FS_CFG, 0x14},
{CC112X_PKT_CFG2, 0x05},
{CC112X_PKT_CFG1, 0x00},
{CC112X_PKT_CFG0, 0x20},
{CC112X_PA_CFG2, 0x5D},
{CC112X_PA_CFG0, 0x7E},//PA = 0dBm
{CC112X_IF_MIX_CFG, 0x00},
{CC112X_FREQOFF_CFG, 0x22}, //rx
//{CC112X_FREQOFF_CFG, 0x24}, //Tx
{CC112X_FREQ2, 0x5A},
{CC112X_FREQ1, 0x5F},
{CC112X_FREQ0, 0x5C},
{CC112X_IF_ADC0, 0x05},
{CC112X_FS_DIG1, 0x00},
{CC112X_FS_DIG0, 0x5F},
{CC112X_FS_CAL0, 0x0E},
{CC112X_FS_DIVTWO, 0x03},
{CC112X_FS_DSM0, 0x33},
{CC112X_FS_DVC0, 0x17},
{CC112X_FS_PFD, 0x50},
{CC112X_FS_PRE, 0x6E},
{CC112X_FS_REG_DIV_CML, 0x14},
{CC112X_FS_SPARE, 0xAC},
{CC112X_XOSC5, 0x0E},
{CC112X_XOSC3, 0xC7},
{CC112X_XOSC1, 0x07},
{CC112X_SERIAL_STATUS, 0x08},
};
void Init_CC112x_TX()
{
uint8_t writeByte;
//Set serial mode specific registers
writeByte = 0x08;
cc112xSpiWriteReg(CC112X_IOCFG3, &writeByte, 1);
writeByte = 0xb0;
cc112xSpiWriteReg(CC112X_IOCFG2, &writeByte, 1);
writeByte = 0x30;
cc112xSpiWriteReg(CC112X_IOCFG0, &writeByte, 1);
writeByte = 0x08;
cc112xSpiWriteReg(CC112X_SYNC_CFG1, &writeByte, 1);
writeByte = 0x00;
cc112xSpiWriteReg(CC112X_PREAMBLE_CFG1, &writeByte, 1);
writeByte = 0x06;
cc112xSpiWriteReg(CC112X_MDMCFG1, &writeByte, 1);
writeByte = 0x05;
cc112xSpiWriteReg(CC112X_MDMCFG0, &writeByte, 1);
writeByte = 0x2D;
cc112xSpiWriteReg(CC112X_AGC_CFG1, &writeByte, 1);
writeByte = 0x05;
cc112xSpiWriteReg(CC112X_PKT_CFG2, &writeByte, 1);
writeByte = 0x00;
cc112xSpiWriteReg(CC112X_PKT_CFG1, &writeByte, 1);
writeByte = 0x08;
cc112xSpiWriteReg(CC112X_SERIAL_STATUS, &writeByte, 1);
}
void Init_CC112x_RX()
{
uint8_t writeByte;
//Set serial mode specific registers
writeByte = 0x08;
cc112xSpiWriteReg(CC112X_IOCFG3, &writeByte, 1);
writeByte = 0x09;
cc112xSpiWriteReg(CC112X_IOCFG2, &writeByte, 1);
writeByte = 0xb0;
cc112xSpiWriteReg(CC112X_IOCFG0, &writeByte, 1);
writeByte = 0x1F;
cc112xSpiWriteReg(CC112X_SYNC_CFG1, &writeByte, 1);
writeByte = 0x00;
cc112xSpiWriteReg(CC112X_PREAMBLE_CFG1, &writeByte, 1);
writeByte = 0x06;
cc112xSpiWriteReg(CC112X_MDMCFG1, &writeByte, 1);
writeByte = 0x0A;
cc112xSpiWriteReg(CC112X_MDMCFG0, &writeByte, 1);
writeByte = 0x0A;
cc112xSpiWriteReg(CC112X_AGC_CFG1, &writeByte, 1);
writeByte = 0x05;
cc112xSpiWriteReg(CC112X_PKT_CFG2, &writeByte, 1);
writeByte = 0x00;
cc112xSpiWriteReg(CC112X_PKT_CFG1, &writeByte, 1);
writeByte = 0x08;
cc112xSpiWriteReg(CC112X_SERIAL_STATUS, &writeByte, 1);
}
void CC112x_19200()
{
uint8_t writeByte;
writeByte = 0xA3; //4K
cc112xSpiWriteReg(CC112X_DEVIATION_M, &writeByte, 1);
writeByte = 0x0A;
cc112xSpiWriteReg(CC112X_MODCFG_DEV_E, &writeByte, 1);
writeByte = 0x4E; //IQ image compensation disabled
cc112xSpiWriteReg(CC112X_IQIC, &writeByte, 1);
writeByte = 0x06; //CHAN_BW 41.7 20
cc112xSpiWriteReg(CC112X_CHAN_BW, &writeByte, 1);
writeByte = 0x7F; //19.2KHz
cc112xSpiWriteReg(CC112X_SYMBOL_RATE2, &writeByte, 1);
writeByte = 0x75;
cc112xSpiWriteReg(CC112X_SYMBOL_RATE1, &writeByte, 1);
writeByte = 0x10;
cc112xSpiWriteReg(CC112X_SYMBOL_RATE0, &writeByte, 1);
}
void CC112x_9600()
{
uint8_t writeByte;
writeByte = 0xF7; //2.4k
cc112xSpiWriteReg(CC112X_DEVIATION_M, &writeByte, 1);
writeByte = 0x09;
cc112xSpiWriteReg(CC112X_MODCFG_DEV_E, &writeByte, 1);
writeByte = 0xCE; //IQ image compensation disabled
cc112xSpiWriteReg(CC112X_IQIC, &writeByte, 1);
writeByte = 0x0D; //CHAN_BW 19.2 20
cc112xSpiWriteReg(CC112X_CHAN_BW, &writeByte, 1);
writeByte = 0x6F; //9.6KBPS
cc112xSpiWriteReg(CC112X_SYMBOL_RATE2, &writeByte, 1);
writeByte = 0x75;
cc112xSpiWriteReg(CC112X_SYMBOL_RATE1, &writeByte, 1);
writeByte = 0x10;
cc112xSpiWriteReg(CC112X_SYMBOL_RATE0, &writeByte, 1);
}
void Air_Rate_Init() //
{
Radio_Para.Wireless_Link_Rate = Memory_Content[2];
switch(Radio_Para.Wireless_Link_Rate)
{
case '4':
CC112x_19200();
break;
case '2':
CC112x_9600();
break;
default:
Radio_Para.Wireless_Link_Rate = '2';
CC112x_9600();;
break;
}
}
void Exti_Init()
{
/* TRX_SCK*/
GPIO_MODER(RADIO_TRX_CLK_PORT,RADIO_TRX_CLK_PIN,0);//PA8
GPIO_Speed(RADIO_TRX_CLK_PORT,RADIO_TRX_CLK_PIN,3);//50MHz
GPIO_Pull_Up_Down(RADIO_TRX_CLK_PORT,RADIO_TRX_CLK_PIN,0);
SYSCFG_EXTILineConfig(0,8);
if(Radio_Para.Operating_Mode == '2') //RX
{
Ex_NVIC_Config(0,8,1);//PA8 FALLING
}
else if(Radio_Para.Operating_Mode == '0') //TX
{
Ex_NVIC_Config(0,8,2);//PA8 RISE
}
NVIC_Init(0,2,EXTI9_5_IRQn,2);
}
void InitCC112x()
{
uint8_t writeByte;
trxSpiCmdStrobe(CC112X_SRES); // Reset radio
for(uint16_t i = 0; i < (sizeof(registerSettings)/sizeof(registerSetting_t)); i++)
{
writeByte =registerSettings[i].data;
cc112xSpiWriteReg( registerSettings[i].addr, &writeByte, 1);
}
cc112xSpiReadReg(CC112X_IOCFG3, &writeByte, 1);
if(writeByte !=registerSettings[0].data)while(1);
trxSpiCmdStrobe(CC112X_SCAL);
//cc112xSpiReadReg(CC112X_PARTNUMBER, &writeByte, 1);
//if(writeByte!=0x58)while(1);
}
void Init_Radio()//TX
{
Init_Sys();
InitCC112x();
ManualCalibration();
Air_Rate_Init();
Init_CC112x_TX();
Exti_Init();
}
