/*!
* Sets the chip up for specified protocol.
*
* @param PROTOCOL 0 = Packet format is generic, no dynamic reprogramming of packet handler properties.
1 = Packet format is IEEE802.15.4g compliant. The following properties are overriden:
PKT_CRC_CONFIG, CRC_ENDIAN/BIT_ORDER in PKT_CONFG1 for TX and RX, PKT_FIELD_1_CRC_CONFIG for RX.
Other applicable properties in the packet handler group still need to be programmed. Field 1 should
have the length of 16 bits to contain the PHR with PKT_LEN_FIELD_SOURCE set to 1 for RX. PSDU field
shall use Field 2 with variable length. Field 2 length should be set to the maximum allowed including
the anticipated FCS length. It is anticipated that the FCS will be calculated by the host and transmitted
over the air. Si4440 will receive PHR and put FCS in the FIFO for the host to retrieve and check.
Therefore, CRC shouldn't be enabled on Si4440.
*/
void si446x_protocol_cfg(U8 PROTOCOL)
{
Pro2Cmd[0] = SI446X_CMD_ID_PROTOCOL_CFG;
Pro2Cmd[1] = PROTOCOL;
radio_comm_SendCmd( SI446X_CMD_ARG_COUNT_PROTOCOL_CFG, Pro2Cmd );
}
void si4455_change_state(U8 NEXT_STATE1)
{
radioCmd[0] = SI4455_CMD_ID_CHANGE_STATE;
radioCmd[1] = NEXT_STATE1;
radio_comm_SendCmd( SI4455_CMD_ARG_COUNT_CHANGE_STATE, radioCmd );
}
/*!
* This command is used to allow override of the AGC.
*
* @param AGC_OVERRIDE AGC override parameters.
*/
void si446x_agc_override(U8 AGC_OVERRIDE)
{
Pro2Cmd[0] = SI446X_CMD_ID_AGC_OVERRIDE;
Pro2Cmd[1] = AGC_OVERRIDE;
radio_comm_SendCmd( SI446X_CMD_ARG_COUNT_AGC_OVERRIDE, Pro2Cmd );
}
/*!
* Issue a change state command to the radio.
*
* @param NEXT_STATE1 Next state.
*/
void si446x_change_state(U8 NEXT_STATE1)
{
Pro2Cmd[0] = SI446X_CMD_ID_CHANGE_STATE;
Pro2Cmd[1] = NEXT_STATE1;
radio_comm_SendCmd( SI446X_CMD_ARG_COUNT_CHANGE_STATE, Pro2Cmd );
}
void si4455_start_tx(U8 CHANNEL, U8 CONDITION, U16 TX_LEN)
{
radioCmd[0] = SI4455_CMD_ID_START_TX;
radioCmd[1] = CHANNEL;
radioCmd[2] = CONDITION;
radioCmd[3] = (U8)(TX_LEN >> 8);
radioCmd[4] = (U8)(TX_LEN);
radio_comm_SendCmd( SI4455_CMD_ARG_COUNT_START_TX, radioCmd );
}
/*! Sends START_TX command to the radio.
*
* @param CHANNEL Channel number.
* @param CONDITION Start TX condition.
* @param TX_LEN Payload length (exclude the PH generated CRC).
*/
void si446x_start_tx(U8 CHANNEL, U8 CONDITION, U16 TX_LEN)
{
Pro2Cmd[0] = SI446X_CMD_ID_START_TX;
Pro2Cmd[1] = CHANNEL;
Pro2Cmd[2] = CONDITION;
Pro2Cmd[3] = (U8)(TX_LEN >> 8);
Pro2Cmd[4] = (U8)(TX_LEN);
radio_comm_SendCmd( SI446X_CMD_ARG_COUNT_START_TX, Pro2Cmd );
}
void si4455_power_up(U8 BOOT_OPTIONS, U8 XTAL_OPTIONS, U32 XO_FREQ)
{
radioCmd[0] = SI4455_CMD_ID_POWER_UP;
radioCmd[1] = BOOT_OPTIONS;
radioCmd[2] = XTAL_OPTIONS;
radioCmd[3] = (U8)(XO_FREQ >> 24);
radioCmd[4] = (U8)(XO_FREQ >> 16);
radioCmd[5] = (U8)(XO_FREQ >> 8);
radioCmd[6] = (U8)(XO_FREQ);
radio_comm_SendCmd( SI4455_CMD_ARG_COUNT_POWER_UP, radioCmd );
}
/*!
* While in RX state this will hop to the frequency specified by the parameters and start searching for a preamble.
*
* @param INTE New INTE register value.
* @param FRAC2 New FRAC2 register value.
* @param FRAC1 New FRAC1 register value.
* @param FRAC0 New FRAC0 register value.
* @param VCO_CNT1 New VCO_CNT1 register value.
* @param VCO_CNT0 New VCO_CNT0 register value.
*/
void si446x_rx_hop(U8 INTE, U8 FRAC2, U8 FRAC1, U8 FRAC0, U8 VCO_CNT1, U8 VCO_CNT0)
{
Pro2Cmd[0] = SI446X_CMD_ID_RX_HOP;
Pro2Cmd[1] = INTE;
Pro2Cmd[2] = FRAC2;
Pro2Cmd[3] = FRAC1;
Pro2Cmd[4] = FRAC0;
Pro2Cmd[5] = VCO_CNT1;
Pro2Cmd[6] = VCO_CNT0;
radio_comm_SendCmd( SI446X_CMD_ARG_COUNT_RX_HOP, Pro2Cmd );
}
void si4455_start_rx(U8 CHANNEL, U8 CONDITION, U16 RX_LEN, U8 NEXT_STATE1, U8 NEXT_STATE2, U8 NEXT_STATE3)
{
radioCmd[0] = SI4455_CMD_ID_START_RX;
radioCmd[1] = CHANNEL;
radioCmd[2] = CONDITION;
radioCmd[3] = (U8)(RX_LEN >> 8);
radioCmd[4] = (U8)(RX_LEN);
radioCmd[5] = NEXT_STATE1;
radioCmd[6] = NEXT_STATE2;
radioCmd[7] = NEXT_STATE3;
radio_comm_SendCmd( SI4455_CMD_ARG_COUNT_START_RX, radioCmd );
}
void si4455_set_property( U8 GROUP, U8 NUM_PROPS, U8 START_PROP, ... )
{
va_list argList;
U8 cmdIndex;
radioCmd[0] = SI4455_CMD_ID_SET_PROPERTY;
radioCmd[1] = GROUP;
radioCmd[2] = NUM_PROPS;
radioCmd[3] = START_PROP;
va_start (argList, START_PROP);
cmdIndex = 4;
while(NUM_PROPS--)
{
radioCmd[cmdIndex] = va_arg (argList, U8);
cmdIndex++;
}
va_end(argList);
radio_comm_SendCmd( cmdIndex, radioCmd );
}
/*!
* Sends a command to the radio chip and gets a response
*
* @param cmdByteCount Number of bytes in the command to send to the radio device
* @param pCmdData Pointer to the command data
* @param respByteCount Number of bytes in the response to fetch
* @param pRespData Pointer to where to put the response data
*
* @return CTS value
*/
U8 radio_comm_SendCmdGetResp(U8 cmdByteCount, U8* pCmdData, U8 respByteCount, U8* pRespData)
{
radio_comm_SendCmd(cmdByteCount, pCmdData);
return radio_comm_GetResp(respByteCount, pRespData);
}
void si4455_nop(void)
{
radioCmd[0] = SI4455_CMD_ID_NOP;
radio_comm_SendCmd( SI4455_CMD_ARG_COUNT_NOP, radioCmd );
}
/*!
* Sends NOP command to the radio. Can be used to maintain SPI communication.
*/
void si446x_nop(void)
{
Pro2Cmd[0] = SI446X_CMD_ID_NOP;
radio_comm_SendCmd( SI446X_CMD_ARG_COUNT_NOP, Pro2Cmd );
}
void Clear_int_status(void)
{
U8 send_cmd;
send_cmd=SI446X_CMD_ID_GET_INT_STATUS;
radio_comm_SendCmd(0x01,&send_cmd);
}