uint8_t cc1101_rcv_packet(uint8_t *rxBuffer, uint8_t *length)
{
#if 0
uint8_t marc=read_cc1101(CCxxx0_MARCSTATE,RT_NULL,0,TYPE_REG)&0x1f;
DEBUG("marc %x\r\n",marc);
if(marc==0x11)
{
write_cc1101(CCxxx0_SIDLE,RT_NULL,0,TYPE_STROBE_STATUS); // Enter IDLE state
write_cc1101(CCxxx0_SFRX,RT_NULL,0,TYPE_STROBE_STATUS); // Flush Tx FIFO
}
else{
marc=read_cc1101(CCxxx0_RXBYTES,RT_NULL,0,TYPE_REG)&0x7f;
DEBUG("rxbytes %x\r\n",marc);
if(marc!=0)
{
DEBUG("read %d bytes\r\n",read_cc1101(CCxxx0_RXBYTES,RT_NULL,0,TYPE_REG)&0x7f);
*length=read_cc1101(CCxxx0_RXFIFO,RT_NULL,0,TYPE_STROBE_STATUS);
read_cc1101(CCxxx0_RXFIFO, rxBuffer, *length,TYPE_BURST);
}
}
return *length;
#endif
uint8_t i,status[2];
write_cc1101(CCxxx0_SRX,RT_NULL,0,TYPE_STROBE_STATUS);
wait_int(RT_TRUE);
wait_int(RT_FALSE);
uint8_t marc=read_cc1101(CCxxx0_RXBYTES,RT_NULL,0,TYPE_REG)&0x7f;
//DEBUG("rxbytes %x\r\n",marc);
if(marc!=0)
{
uint8_t len=read_cc1101(CCxxx0_RXFIFO,RT_NULL,0,TYPE_STROBE_STATUS);
DEBUG("len is %d\r\n",len);
if(len<=*length)
{
read_cc1101(CCxxx0_RXFIFO, rxBuffer, len,TYPE_BURST);
for(i=0;i<len;i++)
DEBUG("%x ",rxBuffer[i]);
DEBUG("cc1101 receive ok\r\n");
*length=len;
read_cc1101(CCxxx0_RXFIFO,status,2,TYPE_BURST);
return status[1]&CRC_OK;
}
else
{
*length=len;
write_cc1101(CCxxx0_SIDLE,RT_NULL,0,TYPE_STROBE_STATUS); // Enter IDLE state
write_cc1101(CCxxx0_SFRX,RT_NULL,0,TYPE_STROBE_STATUS);
}
}
return 0;
}
uint8_t cc1101_rcv_packet(uint8_t *rxBuffer, uint8_t *length)
{
uint8_t status[2];
uint8_t packetLength;
uint8_t i=(*length)*4; // 具体多少要根据datarate和length来决定
write_cc1101(CCxxx0_SRX,RT_NULL,0,TYPE_STROBE_STATUS); //进入接收状态
wait_int(RT_FALSE);
if ((read_cc1101(CCxxx0_RXBYTES,RT_NULL,0,TYPE_STROBE_STATUS) & BYTES_IN_RXFIFO)) //如果接的字节数不为0
{
packetLength = read_cc1101(CCxxx0_RXFIFO,RT_NULL,0,TYPE_STROBE_STATUS);//读出第一个字节，此字节为该帧数据长度
if (packetLength <= *length) //如果所要的有效数据长度小于等于接收到的数据包的长度
{
read_cc1101(CCxxx0_RXFIFO, rxBuffer, packetLength,TYPE_BURST); //读出所有接收到的数据
*length = packetLength; //把接收数据长度的修改为当前数据的长度
// Read the 2 appended status bytes (status[0] = RSSI, status[1] = LQI)
read_cc1101(CCxxx0_RXFIFO, status, 2,TYPE_BURST); //读出CRC校验位
write_cc1101(CCxxx0_SFRX,RT_NULL,0,TYPE_STROBE_STATUS); //清洗接收缓冲区
DEBUG("cc1101 read \r\n");
for(i=0;i<*length;i++)
DEBUG("%x ",rxBuffer[i]);
write_cc1101(CCxxx0_STX,RT_NULL,0,TYPE_STROBE_STATUS);
return (status[1] & CRC_OK); //如果校验成功返回接收成功
}
else
{
*length = packetLength;
write_cc1101(CCxxx0_SFRX,RT_NULL,0,TYPE_STROBE_STATUS); //清洗接收缓冲区
DEBUG("rx buffer is not enough ,need %d bytes\r\n",packetLength);
write_cc1101(CCxxx0_STX,RT_NULL,0,TYPE_STROBE_STATUS);
return 0;
}
}
else
{
write_cc1101(CCxxx0_STX,RT_NULL,0,TYPE_STROBE_STATUS);
return 0;
}
}
void cc1101_send_packet(uint8_t *txBuffer, uint8_t size)
{
int i;
DEBUG("cc1101 write \r\n");
for(i=0;i<size;i++)
DEBUG("%x ",txBuffer[i]);
write_cc1101(CCxxx0_TXFIFO, &size,1,TYPE_REG);
write_cc1101(CCxxx0_TXFIFO, txBuffer, size,TYPE_BURST);
write_cc1101(CCxxx0_STX,RT_NULL,0,TYPE_STROBE_STATUS);
wait_int(RT_TRUE);
wait_int(RT_FALSE);
//rt_thread_delay(1);
write_cc1101(CCxxx0_SRX,RT_NULL,0,TYPE_STROBE_STATUS);
if((read_cc1101(CCxxx0_TXBYTES,RT_NULL,0,TYPE_REG)&0x7f)==0)
{
rt_kprintf("cc1101 send ok\r\n");
return ;
}
rt_kprintf("cc1101 send failed 2\r\n");
}
void cc1101_read_reg(uint8_t reg)
{
uint8_t val=read_cc1101(reg, RT_NULL, 0,2);
DEBUG("reg %x , val is %x\r\n",reg,val);
}
