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LAUNCHXL-CC2640R2: Powering up using BOOSTXL-BATPAKMKII?

Markel Robregado
Guru 86225 points
Part Number: LAUNCHXL-CC2640R2
Other Parts Discussed in Thread: BOOSTXL-BATPAKMKII, CC2640R2F, , CC3220SF

Hi,

    What is the jumper settings to power up CC2640R2F Launchpad using BOOSTXL-BATPAKMKII? I program my CC2640R2F Launchpad with pwm led example program. I remove 5v and 3.3v jumper and then connect the BOOSTXL-BATPAKMKII to CC2640R2F Launchpad. The CC2640R2F Launchpad does not power up.

-kel

  • 0
    TI__Prodigy 200 points
    Hi Markel,

    Apart from removing the 5V and 3V3 jumpers from the main jumper block on the LAUNCHXL-CC2640R2, you also need to move the VSENSE jumper from XDS110 power (factory default) to Extern Pwr.

    Let me know if you're still having issues.

    Best regards,
    Ryan
  • 0 in reply to Ryan Voogjarv
    Guru 86225 points
    Hi Ryan,

    Removing the 5V , 3V3 Jumpers and move the VSENSE Jumper to Extern Pwr did not work. I tried with 2 CC2640R2F Launchpad. I measure 5V and 3.3V at CC2640R2F Launchpad, so the BOOSTXL-BATPAKMKII is providing power to it. But, the program does not run.

    I have used my BOOSTXL-BATPAKMKII to power up MSP432P401R LP and CC3220SF LP. At both LP I remove the 5V and 3V3 Jumpers.

    -kel
  • 0 in reply to Markel Robregado
    Guru 86225 points

    Hello TI,

         I remember I powered my CC2640R2F Launchpad before using 2AA battery and adjustable power supply. But, with all jumpers removed. So, I connect the BOOSTXL-BATPAKMKII to CC2640R2F LP (w/ led jumpers only) using connecting wires, see below. The pin interrupt and simple peripheral work in this setup.

    • If I connect the CC2640R2F LP (w/o jumpers) to BOOSTXL-BATPAKMKII, the simple peripheral does not work.
    • Setting the CC2640R2F LP jumpers 5V, 3.3V removed, VSENSE set to External Power, does not work either. 

    I reviewed the BOOSTXL-BATPAKMKII pinouts and it will not in any way cause the CC2640R2F LP to not work. So, it seems CC2640R2F LP circuitry is not compatible with BOOSTXL-BATPAKMKII. However from my use the BOOSTXL-BATPAKMKII is compatible with TM4C Connected LP, MSP432P401R LP, and CC3220SF LP. 

    I was doing a simple project using CC2640R2F LP and BOOSTXL-BATPAKMKII and now it seems I have to scrap it. It would not look good if I make it work using connecting wires.

    -kel

  • 0 in reply to Markel Robregado
    TI__Prodigy 200 points

    Hi Markel,

    My apologies, as per the BoosterPack Checker the LAUNCHXL-CC2640R2 LaunchPad is incompatible with the Fuel Tank MKII Battery BoosterPack, as pin 34 on the LaunchPad is unavailable.

    Best regards,

    Ryan Voogjarv

  • 0 in reply to Ryan Voogjarv
    Guru 86225 points

    Hi Ryan,

    CE Pin of BOOSTXL-BATPAKMKII is connected to TMS Pin of CC2640R2F LP See, below. But, I removed TMS Jumper and still did not work. Anyway, I will try to isolate the root cause of the problem. Please, communicate this issue with the TI Launchpad Team. I also suspect that new CC26X2R is not compatible with BOOSTXL-BATPAKMKII.

  • 0 in reply to Markel Robregado
    TI__Prodigy 200 points

    Hi Markel,

    Upon further inspection, I believe that the issue at hand is a conflict on pin 35 of the LAUNCHXL-CC2640R2. On the LaunchPad, this pin (labelled BPRST) is an active low reset, that is pulled up to 3.3V by a 100k resistor.

    On the BOOSTXL-BATPAKMKII, this pin corresponds to EN1 (used to set the battery charge rate), and is pulled down to ground by a 10k resistor. This 10k pulldown resistor is constantly activating the RESET_N on your CC2640R2F, which is why your application is not running. 

    You should be able to resolve the issue by desoldering the zero-ohm link labelled "BP" on your LaunchPad. This effectively disconnects the LaunchPad's BPRST header pin from the CC2640R2F device's RESET_N pin.

    Finally, I do not believe that the pin 34 conflict will cause you any issues, as this header pin on the LaunchPad (labelled TMS) is completely disconnected by default (see the unpopulated solder pads directly to the left of the TMS header pin).

    Best regards,

    Ryan Voogjarv

  • 0 in reply to Ryan Voogjarv
    Guru 86225 points
    Awesome, it worked. Many thanks. Now I can proceed with my project.

    The TI CC2640RF Launchpad don't have a User's Guide. At TM4C Connected Launchpad and MPS432P401R LP there is a user guide and mentions procedure how to power from Booster Pack Connector.

    For other readers of this post. The BOOSTXL-BATPAKMKII Rev 1.0 needs a 10K Ohm resistor at R9 to work properly.

    -kel