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Programming CC2431. How?

Luis Filipe Rossi
Expert 1035 points
Other Parts Discussed in Thread: CC2431, CC2500, CC2530, CC2430

Hi, i am developing a board for my own with the CC2431, but reading the documentation i was not able to figure out how to program the 8051 inside the chip. How can i do that? Which JTAG, ISP or toll should i use?

If i designe the RF front end should i use a SMA antena or can i use a Chip antena and follow the RF2500 designe?

Thank you! 

EZ430-RF2500
  • 0
    TI__Expert 6995 points

    Hi Louis,

    The CC2431 uses an SPI-like proprietary debug bus. This bus is used to program the flash for the CPU. You can use the SmartRF04EB boards that come with the CC2431 kit or a CCDebugger tool to do the programming.

    The choice of antenna is highly application dependent, however, not all solutions that fit the CC2500 are good for the CC2431. I would recommend looking at the CC2431EM reference design that has an SMA connector. That will allow you to try out some different antennas.

    Peder

  • 0 in reply to Peder
    Expert 1035 points

    CCDebugger  is what i am looking for. I wam going to get one right now. The CC2431 kit is far too expensive (999 USD)  for me right now. As i am trying to build a very compact system (just for home automation), i am trying to avoid SMA connectors an big antenas. I was considering to jus use chip antenas, but i dont know what range i can get with this kind of aproach. Is there any good Reference Designe i could follow to designe the antena for the CC2431. I am goind to build some versions using the CC2500 too. I know the designe at the kit is not the best possible, but i will use it as a start-point.

     

    Thank you! 

  • 0 in reply to Luis Filipe Rossi
    Expert 1035 points

    And just onemore question. Which compiler should i use for the 8051 inside the CC2431 or CC2530? Can i program in C?

     

    Thank you!

  • 0 in reply to Luis Filipe Rossi
    TI__Expert 6995 points

    Hi Louis,

    If you are not very space constrained, I would consider a PCB antenna rather than chip antenna. Here's an example with the CC2430 that can be used for the CC2431:

    http://focus.ti.com/docs/toolsw/folders/print/cc2430db_refdes.html

    The 8051 in CC2431 can be programmed using IAR.

    Peder

  • 0 in reply to Peder
    Expert 1035 points

    Peder said:

    If you are not very space constrained, I would consider a PCB antenna rather than chip antenna. Here's an example with the CC2430 that can be used for the CC2431:

    Why do you say that? Am i going to have a better perfomance with a PCB antenna?

    Another question about another problem. I was looking some way to make a compact 433Mhz antenna, and looking at the chronus designe the antenna used for the USB dongle is a 868Mhz Chip one. Why?

     

     

    Thank you for the help!