4 Replies Latest reply on Aug 29, 2018 11:23 PM by BiHu_1749111

    CYW20706 support Flash GD25WD80C or not

    BiHu_1749111

      WICED 6.2.1, the customer changed the flash to GD25WD80C(attached the datasheet),but download failed.

      How to support serial flash GD25WD80C,thanks

      .

        • 1. Re: CYW20706 support Flash GD25WD80C or not
          AnjanaM_61

          Hi,

           

          The software driver supports SPI Flashes with the following parameters:

          1. Address Width - 24 bit addressing

          2. Data Rate is specific to the IoT chip:

                 CYW2070x supports SPI data rate upto 12MHz

          3. Supports JEDEC's CFI (Common Flash Interface) compatible SPI Flash chips from Cypress Semiconductors, SST, STMicroelectronics, Atmel, MXIC, Adesto, Winbond.

           

          Could you please clarify at what stage the download failed? Did you probe the SFLASH lines and confirmed whether the flash writes are failing?

           

          - Can you put the device in recovery mode and try downloading?

           

          Thanks & Regards,
          Anjana

          1 of 1 people found this helpful
          • 2. Re: CYW20706 support Flash GD25WD80C or not
            BiHu_1749111

            Hi,Anjana,

             

            thanks for your support.

            1.for Flash GD25WD80C,the download failed log:

            Converting CGS to HEX...

            Conversion complete

             

             

            Creating OTA images...

            Conversion complete

            OTA image footprint in NV is 66639 bytes

             

             

            Detecting device...

            Device found

             

            Downloading application...

            ********* Download Failure *************

            +------------------------------------------------------------------------------------------+

            | Power cycle the CYW920706WCDEVAL board and retry.                                        |

            | If this problem persists, the serial flash on the board may be corrupted.                |

            | Please see Appendix D in the Kit Guide for recovery instructions.                        |

            +------------------------------------------------------------------------------------------+

            Download failed. This WICED platform of the SDK only supports download to 20706A2 device

             

            we put the device in recovery mode and reset,it still download failed. when changeed to MXIC Flash MX25R4035FZUIL0,the board download succesfully.

             

            2. we'll let end customer to test SST,ST,Atmel,  Adesto, Winbond flash samples with CYW20706, did need to modify what configuration in WICED  SDK for supporting these flashs ?thanks.

            • 3. Re: CYW20706 support Flash GD25WD80C or not
              AnjanaM_61

              Hi,

               

              We have only qualified 4Mbit flashes for CYW20706. The ones we have qualified are:

              Adesto AT25XE041B

              Gigadevice GD25WD40C

              Macronix MX25R4035F

               

              Thanks & Regards,

              Anjana

              1 of 1 people found this helpful
              • 4. Re: CYW20706 support Flash GD25WD80C or not
                BiHu_1749111

                got it,thanks for your support.