CC1350: Send temperature data from Sensor Controller over Sub-1GHz

Marsstar

Part Number: CC1350

I am using CC1350 Launchpad.

I have used Sensor Control Studio (SCS) to create a program to read two temperature data bytes from a temperature sensor.

Using the "Task Testing" inside SCS I could verify that my program is working.

I am now trying to send that two bytes of data over Tx (Sub-1GHz) using the simple "rfPacketTx" example program.

I went through the Simplelink Academy programs "Sensor Controller Studio" -> "Projects from Scratch" -> "Bonus Task 2 Integrate with Proprietary RF" found here:

http://dev.ti.com/tirex/#/?link=Software%2FSimpleLink CC13x0 SDK%2FSimpleLink Academy%2FSensor Controller Studio%2FProject from Scratch

I have the following already:

// Fetch 'output.tempMSB' & 'output.tempLSB' variable from SC
      uint8_t tempMSB = scifTaskData.i2c.state.tempMSB;
      uint8_t tempLSB = scifTaskData.i2c.state.tempLSB;

This will probably set the sequence number:

// Populate packet, and set pktlen
      packet[0] = (uint8_t)(seqNumber >> 8);
      packet[1] = (uint8_t)(seqNumber++);

I then need to set the packet length using "RF_cmdPropTx.pktLen".

How do I do this? How do I send the 2 bytes?

over 7 years ago

0 Siri over 7 years ago

TI__Guru* 86731 points

Do you want to send the two bytes in addition to the sequence number or only send the two temp bytes?

If you want to send the sequence number and the temp byte you need to set the length to 4:

RF_cmdPropTx.pktLen = 4;

packet[0] = (uint8_t)(seqNumber >> 8);
packet[1] = (uint8_t)(seqNumber++);
packet[2] = tempMSB;
packet[3] = tempLSB;

If you only want to send the temperature, you set the length to 2:

RF_cmdPropTx.pktLen = 2;

packet[0] = tempMSB;
packet[1] = tempLSB;

Siri

0 Sanchitha Dias over 7 years ago in reply to Siri

Intellectual 795 points

Hi Marsstar,

Wouldn't it be easy for you to use EasyLink?.

Regards,
Sanchitha

0 Marsstar over 7 years ago in reply to Sanchitha Dias

Prodigy 115 points

Now that you say, hmm... Yeah, it would be easier.

Sub-1 GHz

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CC1350: Send temperature data from Sensor Controller over Sub-1GHz