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LAUNCHXL-CC3235SF: How much ram size left after SDK occupied.

Aichi Chen
Expert 1580 points
Part Number: LAUNCHXL-CC3235SF

Hi,

I have 2 questions:

The first question,may I know how much memory that SDK occupied after system started?

For example the total ram is 256KB ram and SDK use 120 KB???

The second question is: I would like to use CC3235 get 24 KB sensor data from another MCU via SPI then send these data out via Wi-Fi both these 2 operation at the same time.

Will this scenario is workable?

I have check these document, in chapter 8, SPI. The FIFO is seen as a 64-byte buffer if configured for one data direction and DMA is supported. Hopefully this testing will work...

  • 0
    Guru 79985 points

    Hi,

    RAM occupation depends on required features of your code. But generally SDK (SimpleLink) driver requires much less RAM space then 120kB. For example my project have occupied 165kB RAM and 275kB flash with following features:

    • webserver (http/https) at application processor for up to three connected clients at one moment
    • ModbusTCP server for up to two clients clients at one moment
    • sending emails via SMTP with support TLS
    • http/https POST client to Cloud server connection
    • TLS server for own communication protocl
    • Own Zero-conf UDP based protocol
    • Measurement from internal sensors and evaluation alarms
    • Integrated RF testing mode, etc.

    I think generally CC3220/CC3235 should be good choice for your project depending on how fast you want to read data from your sensors. If you need some basic network communication, I think 200kB of RAM can left for your data buffers.

    Jan