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CC2541EMK and Experimenter boards

Oliver Maye
Prodigy 80 points
Other Parts Discussed in Thread: CC2541EMK, CC2541, CC-DEBUGGER

Hi,

does anyone know if the CC2541EMK evaluation module kit is compatible with MSP430 experimenter boards, especially the MSP-EXP430F5529 or MSP-EXP430F5438 ? On the experimenter boards, there are these 2x10 SMD pin headers RF1 and RF2 to accommodate an RF evaluation module (EVM). So physically, it could match.... However, the CC2541EMK board and the experimenter board are not listed in each other's compatibility list. So, does anybody know?

Best

Oliver.

  • 0
    TI__Guru** 106705 points

    Hi Oliver,

    I do not know the details of the MSP430 boards, but my guess is that they will work together. You should check the CC2541 user's guide, CC2541EM schematic, and the MSP-EXP schematic to make sure the SPI interface, power pins etc. are correctly alligned.

    Cheers,
    Fredrik

  • 0 in reply to Fredrik K
    Prodigy 80 points

    Hi Fredrik,

    thanks for your advice. I just checked the schematics to see, that both, the experimenter board and the evaluation module, match more or less. Power supply is ok and most of the signals are connected. Some of the CC2541's GPIOs are left unconnected, some are shorted (P0.2 and P1.0 of the CC2541 both connect to P4.0 of the MSP430). But the SPI pins of the CC2541 (P1.4-1.7) correctly connect to the MSP's UCB0 plus P2.6 for chip select.So, that should be fine.

    Unfortunatelly, the primary I2C pins (SCL, SDA) are not connected on the experimenter board. And also CC2541's P2.2 and P2.1, which may be of importance as a secondary I2C debugging interface, just connect to GPIO pins P2.3 and P2.4 of the MSP which are not related to USCI stuff. So this means, no I2C!

    With this setup, it seems as if I need the CC-Debugger and a tailored adapter board to get firmware onto the CC2541. Do you know of a CC-Debugger -- to -- CC2541EMK Adapter? Or is there another way of flashing the firmware?

    Best

    Oliver.

  • 0 in reply to Oliver Maye
    TI__Guru** 106705 points

    Hi Oliver,

    You can probably solder straps from the I2C signals on the socket connectors to other available GPIOs on the MSP-board.

    Do you have access to the CC2541 reset signal on the MSP-board? If so you can simply connect jumper wires from the MSP-board (GPIO 2.3, 2.4 and CC_reset) to the debugger. You must also connect ground and VDD. For more details on the debug interface read the user's guide.

    Alternatively you can buy this board: https://estore.ti.com/SOC-BB-Battery-Board-for-System-on-Chips-P1136.aspx

    Cheers,
    Fredrik