SDAA260 April   2026 CC1310 , CC1311P3 , CC1312PSIP , CC1312R , CC1312R7 , CC1314R10 , CC1350 , CC1352P , CC1352P7 , CC1352R , CC1354P10 , CC1354R10

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2PHY Settings Exported with the Standard Commands
    1. 2.1 Standard Packet Format (1 Length Byte)
      1. 2.1.1 TX using CMD_PROP_TX and Standard Packet Format (1 Length Byte)
      2. 2.1.2 RX using CMD_PROP_RX and Standard Packet Format (1 Length Byte)
      3. 2.1.3 TX using CMD_PROP_TX_ADV and Standard Packet Format (1 Length Byte)
      4. 2.1.4 RX using CMD_PROP_RX_ADV and Standard Packet Format (1 Length Byte)
    2. 2.2 Standard Packet Format (2 Length Bytes)
      1. 2.2.1 TX using CMD_PROP_TX_ADV and Standard Packet Format (2 Length Bytes)
      2. 2.2.2 RX Using CMD_PROP_RX_ADV and Standard Packet Format (2 Length Bytes)
  6. 3TX and RX Settings Exported with the Advanced Commands
    1. 3.1 Advanced Packet Format
      1. 3.1.1 TX using CMD_PROP_TX_ADV and Advanced Packet Format
      2. 3.1.2 RX using CMD_PROP_RX_ADV and Advanced Packet Format
    2. 3.2 Standard Packet Format (1 Length Byte)
      1. 3.2.1 TX using CMD_PROP_TX_ADV and Standard Packet Format (1 Length Byte)
      2. 3.2.2 RX using CMD_PROP_RX_ADV and Standard Packet Format (1 Length Byte)
    3. 3.3 Standard Packet Format (2 Length Bytes)
      1. 3.3.1 TX using CMD_PROP_TX_ADV and Standard Packet Format (2 Length Bytes)
      2. 3.3.2 RX using CMD_PROP_RX_ADV and Standard Packet Format (2 Length Bytes)
  7. 4References

2.1.1 TX using CMD_PROP_TX and Standard Packet Format (1 Length Byte)

The rfPacketTx example is written to support this format, and no changes are needed to the code examples, other than to the payload length and content. However, in the following code snippet, some modifications have been implemented to improve readability. The following code shows how rfPacketTx.c can be modified to send the wanted payload once every 0.5 s.

1:  //---------------------------------------------------------------------------------------------
2:  // Transmit Standard Packet Format with CMD_PROP_TX (1 Length Byte)
3:  //---------------------------------------------------------------------------------------------
4:
5:  // Defines
6:  #define PAYLOAD_LENGTH  3 // Max 255 bytes
7:
8:  uint8_t packet[PAYLOAD_LENGTH];
9:
10: static RF_Object rfObject;
11: static RF_Handle rfHandle;
12:
13: void *mainThread(void *arg0)
14: {
15:     RF_Params rfParams;
16:     RF_Params_init(&rfParams);
17:
18:     RF_cmdPropTx.pktLen = PAYLOAD_LENGTH; // Application specific settings
19:     RF_cmdPropTx.pPkt   = packet;
20:
21:     rfHandle = RF_open(&rfObject, &RF_prop,
22:                       (RF_RadioSetup*)&RF_cmdPropRadioDivSetup, &rfParams);
23:     RF_postCmd(rfHandle, (RF_Op*)&RF_cmdFs, RF_PriorityNormal, NULL, 0);
24:
25:     while(1)
26:     {
27:         //-------------------------------------------------------------------------------------
28:         // Could be placed outside the while(1) since the packet does not change
29:         for (uint8_t i = 0; i < PAYLOAD_LENGTH; i++)
30:         {
31:             packet[i] = i + 1;
32:         }
33:         //-------------------------------------------------------------------------------------
34:         RF_runCmd(rfHandle, (RF_Op*)&RF_cmdPropTx, RF_PriorityNormal, NULL, 0);
35:         RF_yield(rfHandle);
36:         usleep(500000);
37:     }
38: }

When using the standard TX command, the maximum payload length is 255, and the length byte (PAYLOAD_LENGTH) must be written to the .pktLen field of the command.