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succeed in plusing F28335 and ARM9 in one board!

dsp999
Expert 1495 points

Other Parts Discussed in Thread: OMAP-L137, OMAP3530

it can easyly have wince/linux for GUI on ARM side while have good speed of data processing on DSP side. The data analysis result will be perfect shown on the touch screen LCD.
data exchange between F28335 and ARM has three way:
1, RS232
2, SPI
3, Dural RAM (I have add 64KB dural ram for fast data exchange)

what do you think of this architecture?

  • 0
    Intellectual 295 points

    Do You really need three way?

    Also You have to remember that SPI is synchronous interface and in some conditions it is not so comfortable as async UART.

    First calculate what real throughput you need and advantage/disadvantage of sync/async interface. It depends on many factors and only You know them by  now :)

  • 0
    Prodigy 250 points

    have you considered using OMAP-L137/138 ? It has a ARM9 and a C674x in a single die. Could make your data exchange easier.

    I have a similar architecture to implement next year, and I heard more details about OMAP during yesterday's MCU Day and got interested to do more research about these little guys.

  • 0 in reply to Vasily15156
    Expert 1495 points

    Yes, we first use RS232 and find its rate limited, than we use dural RAM and satisfied, SPI is only backup for RS232.

    Vasily wrote the following post at 10-07-2009 3:56 PM:

    Do You really need three way?

    Also You have to remember that SPI is synchronous interface and in some conditions it is not so comfortable as async UART.

    First calculate what real throughput you need and advantage/disadvantage of sync/async interface. It depends on many factors and only You know them by  now :)

  • 0 in reply to energy_freek
    Expert 1495 points

    OMAP is very attractive and we are evaluating OMAP3530.

    energy_freek wrote the following post at 10-07-2009 11:46 PM:

    have you considered using OMAP-L137/138 ? It has a ARM9 and a C674x in a single die. Could make your data exchange easier.

    I have a similar architecture to implement next year, and I heard more details about OMAP during yesterday's MCU Day and got interested to do more research about these little guys.