Extending the range of cc2541 using cc2590

Darshan Belanke

Prodigy 140 points

Other Parts Discussed in Thread: CC2590

Hi,

I am trying to extend the range of Bluetooth CC2541, using CC2590.

I followed the document http://www.ti.com/lit/an/swra422/swra422.pdf

With reference to above document, I am trying to call the function HCI_EXT_ExtendRFRangeCmd();

But its showing following error :

Undefined external "HCI_EXT_ExtendRFRangeCmd::? relay" referred in xyz(//pathofproject)

I can see HCI_EXT_ExtendRFRangeCmd() in hci.h file. Nut not able to see it in .c file.

How to resolve this issue.

over 9 years ago

0 Fredrik K over 9 years ago

TI__Guru** 106705 points

Hi Darshan,

Which BLE project are you using?

Cheers,
Fredrik

0 Tim C over 9 years ago in reply to Fredrik K

TI__Mastermind 34660 points

Hello Darshan. You shouldn't be capitalizing the "f". This is the command:

HCI_EXT_ExtendRfRangeCmd();

0 Darshan Belanke over 9 years ago in reply to Tim C

Prodigy 140 points

Thanks for reply Fredrik & Tim. It worked. I am able to build the project now.

But there is no change in range.

I am using multitool app to test the range.

I followed the instruction from the datasheet http://www.ti.com/lit/an/swra422/swra422.pdf

Following is the code :

VOID osal_snv_read( GET_VAL, sizeof( uint8 ), &Regcode );

if(Regcode == 0xFF)
  {
     Regcode = 0x00;
    VOID osal_snv_write( GET_VAL,  sizeof( uint8 ), &Regcode );
  }
  else
  {
      RFC_OBS_CTRL0 = 0x68;
      RFC_OBS_CTRL1 = 0x6A;

      OBSSEL1 = 0xFB;
      OBSSEL3 = 0xFC;
      P1DIR = 0x02;
      
      HCI_EXT_ExtendRfRangeCmd();
      Regcode = 0xFF;
      VOID osal_snv_write( GET_VAL,  sizeof( uint8 ), &Regcode );
      HAL_SYSTEM_RESET();
  }

am I missing something?

Please guide me for this.

Thank you.

0 Fredrik K over 9 years ago in reply to Darshan Belanke

TI__Guru** 106705 points

Hi Darshan,

Have you measured the conducted output power from CC2590 to verify that it is working properly?

Cheers,
Fredrik

0 Darshan Belanke over 9 years ago in reply to Fredrik K

Prodigy 140 points

HI Fredrik,

We have not measured the output power from CC2590.

Is this important? Can't we test without measuring output power?

0 Fredrik K over 9 years ago in reply to Darshan Belanke

TI__Guru** 106705 points

It is not straight forward to design with the CC2590 and it is thus very important to perform proper measurements to verify the performance.

0 CHS over 9 years ago in reply to Fredrik K

TI__Mastermind 18780 points

If you a design with and without CC2590, you could also compare the RSSI values to get a vague relative indication of performance. Does the current consumption for the radio match the numbers from our guideline? As Fredrik says, it is very hard to make a new radio design without any measurement equipement, so if you can get your hands on at least a spectrum analyzer, this is recommended.

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Extending the range of cc2541 using cc2590