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markjohnson9
markjohnson9
Associate III
March 28, 2017
Question

SPWF01SA.21 WiFi Module

  • March 28, 2017
  • 2 replies
  • 634 views
Posted on March 28, 2017 at 17:17

Is it possible to connect an external eeprom to the SPWF01SA.21 module? The stored eeprom data will be very small >1K and only serve to remember GPIO high or low settings of the modules STM32F103 core that an end user will periodically set if the module loses power. Which interface? I2C, SPI, GPIO, Serial?

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    2 replies

    Andrei Chichak
    Andrei Chichak
    Lead
    March 29, 2017
    Posted on March 29, 2017 at 16:06

    <Jedi>This is not the forum you are looking for...</Jedi>

    You'll get better information if you try the Interface and Connectivity ICs forum.

    Andrei

    Gerardo GALLUCCI
    Gerardo GALLUCCI
    ST Employee
    March 31, 2017
    Posted on March 31, 2017 at 10:16

    Hi Mark,

    cannot use an external storage on SPWF01Sx module family. I expect, since external host is mandatory, that storage is directly managed by SPI/I2C from external host.

    There is a new product family, called SPWF04Sx, that allows module to be used without external host, and allows also to use and external SPI Flash or an SDCard (there are 3 more pins than SPWF01Sx product family)

    jerry

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