6 Replies Latest reply on Feb 4, 2020 11:37 PM by HIUR_3769846

    DCT crash on CYW43907

    HIUR_3769846

      Hi,

      I met the DCT crash, but I could not save the action log. Therefore, now I try to reproduce the crash. I would like to get the advice which area I need to check firstly.

      DCT crash means some of DCT area show all 1 bit. For example, mac address, WIFI setting and so on show 0xFF.

       

      Our environment,

      SDK: 6.4

      Device: CYW43907

      OTA: OTA2

      Build: -CYW943907AEVAL1F-ThreadX-NetX ota2_manuf_download JTAG=Olimex_ARM-USB-TINY-H

       

      BR, Hiroyuki

        • 1. Re: DCT crash on CYW43907
          ZhengbaoZ_96

          hello:

           

            need your help to do a compare test, using our 43907 evb board, try the same steps to see if DCT area has the same value "1" ,  I think the difference should be using a different JTAG:

          JTAG=Olimex_ARM-USB-TINY-H

          and maybe you are using a different FLASH also for the OTA2.

          1 of 1 people found this helpful
          • 2. Re: DCT crash on CYW43907
            HIUR_3769846

            Hi,

            Thank you for your quick response. Maybe I misled you. I add the more information about our environments.
            Firstly, I successfully write the application and DCT value to our board by above environments. After a few date, a lot of DCT value shows all 1. Now, I have any log about why value in DCT is changed. Therefore, I would like to get where data or function should be check.


            BRs,Hiroyuki

            • 3. Re: DCT crash on CYW43907
              ZhengbaoZ_96

              I think you can use apps\snip\dct_read_write to check and print out the value of DCT area,  and find which element of the structure has been changed .  In my opinion we should not change any DCT area if you didn't have user data to write into it .

              we have the document in the release,  WICED-DCT.pdf

              you can take it as a reference.

              • 4. Re: DCT crash on CYW43907
                HIUR_3769846

                Hi,

                I cannot easily program dct_read_write application because our device is packed very very hard.

                Therefore, I attached the dct command log as long as I can get by our application(regarding the SSID and Key, I already changed, so be careful).

                 

                Can I out and change the all dct value with command? Especially, I think some DCT value such as MAC address should be fixed before using.

                 

                BRs,

                Hiroyuki

                • 5. Re: DCT crash on CYW43907
                  ZhengbaoZ_96

                  Hello:

                   

                  I checked the log, it is very strange that the changed value skipped some volumes in the log.

                  Would you please add log to the place where SSID is operated ? I think it should be caused by code calling , not by overwriting or others.

                  1 of 1 people found this helpful
                  • 6. Re: DCT crash on CYW43907
                    HIUR_3769846
                    Hi,
                    Sorry for confusing you.

                     

                    As mentioned above, I changed some of parameters (SSID/wpa2) for another test by using dct command. Plase don't be care about these parameter.

                     

                    BRs,

                    Hiroyuki