7 Replies Latest reply on Jun 5, 2018 10:56 PM by rroy

    CYW43907 QSPI Flash

    harrison_2758731

      Hello

       

      We are debugging our application board which is almost same as CYW43907EVAL1F but

      we use Adesto AT25SF641 instead of MX25L6433FZNI.

      We are facing strange problem when bring up the board.

       

      The debug port show the message ;

      !!! Sflash will work in generic 1-bit mode ( unknown sflash id :0x17321f ) !!!

      I think id :0x17321f is AT25SF641.

       

      Is there any thing for us to change QSPI flash in software ?

       

      Regards

        • 1. Re: CYW43907 QSPI Flash
          rroy

          You can find the list of supported sflash CYW43907 with External SFLASH in WICED in this help article.

          • 2. Re: CYW43907 QSPI Flash
            harrison_2758731

            Thank you for the answer.

            We will replace flash to the supported one.

             

            When we try to connect JATG, we get some errors.

            Is this for unsupported flash ?

             

            Info : Consider using the 'ftdi' interface driver, with configuration files in interface/ftdi/...

            Info : max TCK change to: 30000 kHz

            Info : clock speed 100 kHz

            Info : JTAG tap: BCM43909.cpu tap/device found: 0x5ba00477 (mfg: 0x23b, part: 0xba00, ver: 0x5)

            Info : BCM43909.cpu: hardware has 4 breakpoints, 4 watchpoints

            Warn : Timeout (1000ms) waiting for ACK=OK/FAULT in JTAG-DP transaction - aborting

            Error: JTAG-DP OVERRUN - check clock, memaccess, or reduce jtag speed

            Error: JTAG-DP STICKY ERROR

            Error: JTAG-DP STICKY ERROR

            Error: JTAG-DP STICKY ERROR

            Error: JTAG-DP STICKY ERROR

            Error: JTAG-DP STICKY ERROR

            Error: JTAG-DP STICKY ERROR

            Error: JTAG-DP STICKY ERROR

            Error: JTAG-DP STICKY ERROR

            Error: JTAG-DP STICKY ERROR

            Polling target BCM43909.cpu failed, trying to reexamine

            Error: JTAG-DP STICKY ERROR

            Error: Could not initialize the APB-AP

            Examination failed, GDB will be halted. Polling again in 100ms

            Error: JTAG-DP STICKY ERROR

            Polling target BCM43909.cpu failed, trying to reexamine

            Error: JTAG-DP STICKY ERROR

            Error: Could not initialize the APB-AP

            Examination failed, GDB will be halted. Polling again in 300ms

            • 3. Re: CYW43907 QSPI Flash
              rroy

              Most likely, you are receiving the error because the flash protection is active which should not be the case if you use MX25L6433FZNI or any other supported flash .

              • 4. Re: CYW43907 QSPI Flash
                axel.lin_1746341

                Is it hard to add new flash to wiced sdk?

                Tell people how to add new flash support to wiced sdk is better than force people to replace the flash.

                • 5. Re: CYW43907 QSPI Flash
                  rroy

                  The 6,7 points of the blog post provide a basic outline of adding a new flash support to WICED SDK.

                  1 of 1 people found this helpful
                  • 6. Re: CYW43907 QSPI Flash
                    harrison_2758731

                    Hi rroy,

                     

                    We are still struggling to bring up the board.

                    Our board doesn't have 32.768kHz crystal to HIB_XTAL_IN/OUT.

                    HIB_LPO_SEL is tied to 3.3V.

                    I think we can use internal RC oscillator in this case.

                    Is this understanding correct ?

                    • 7. Re: CYW43907 QSPI Flash
                      rroy

                      In order to achieve good power consumption numbers, it is strongly recommended to use an external 32.768 kHz crystal.

                      1 of 1 people found this helpful