3 Replies Latest reply on Jun 15, 2015 11:17 AM by feng@ibiquity.com

    External Seial Flash

    feng@ibiquity.com

      Hi,

       

       

      Existing external Seial Flash size on BCM943362WCD4 EVB is only 8 Mbit. We need minmium 20 Mbit. What serial flash component/part do you recommend so that the new Seial Flash can be compatible with WICED SDK 3.1.2 Build system including serial flash driver....

       

       

      Thanks

        • 1. Re: External Seial Flash
          dmiya

          You can use larger serial flash.

          Please add necessary code to following two files.

          <WICED-SDK>/libraries/drivers/spi_flash/spi_flash.c

          <WICED-SDK>/libraries/drivers/spi_flash/spi_flash_internal.h

          • 2. Re: External Seial Flash
            feng@ibiquity.com

            Hi,

             

            I changed the serial flash to MX25L1606E(Mbyte) from SST25VF080B(1 Mbyte). I can use make target "snip.tftp-ISM43362_M3G_L44 download download_apps run" to download app0 to the serial flash without adding any code in following two files

            <WICED-SDK>/libraries/drivers/spi_flash/spi_flash.c

            <WICED-SDK>/libraries/drivers/spi_flash/spi_flash_internal.h.

             

            Now WICED SDK 3.1.2 only supports following serial flash and max size is 2Mbytes.

            #define SFLASH_ID_MX25L8006E           ( (uint32_t) 0xC22014 )

            #define SFLASH_ID_MX25L1606E           ( (uint32_t) 0xC22015 )

            #define SFLASH_ID_SST25VF080B          ( (uint32_t) 0xBF258E )

            #define SFLASH_ID_EN25QH16

             

            We need minimum 2.5 Mbyte serial flash.  What serial flash component/part do you recommend so that the new Seial Flash can be compatible with WICED SDK 3.1.2 Build system including serial flash driver? Do we need to add new flash code to the spi_flash libary? any documents for this?

             

            Thanks

            • 3. Re: External Seial Flash
              feng@ibiquity.com

              Hi,

               

              Our project and customers are stuck in the external flash size issue. We need 3 Mbyte serial flash.  What serial flash component/part do you recommend so that the new Seial Flash can be compatible with WICED SDK 3.1.2 Build system including serial flash driver? Do we need to add/intergrate the new serial flash code to the spi_serial flash libary? any documents for this?

               

              Thanks