AM263PX-RESTRICTED-SECURITY: OTP-KEYWRITER

Part Number: AM263PX-RESTRICTED-SECURITY


Hi Team , 

     as mentioned in otp_keywriter_am263px_SR_10_10_01_00_00  I have followed below steps:
Step1 : started generating keys , keys generation successfully completed . 
Step2 : Certificate generated.

WhatsApp Image 2025-12-10 at 17.21.52.jpeg
Step3 : Inorder to bulid application we run clean command as mentioned and then run make command inorder to generate .tiimage . 

            First time it shown some error , again without cleaning we tried running the same commnad now .tiimage is generated . 
  
            Query : Why there is need of entering command 2 times . 


WhatsApp Image 2025-12-10 at 18.56.13 (1).jpeg
WhatsApp Image 2025-12-10 at 18.56.13.jpeg
Step4: UART MODE : 
           We tried running generated .tiimage in UART mode , we entered command as per the document . After cleaning and running it is now priniting nothing like hash values etc., 
           In general as per the document it will print some commands in dry run mode . 

           Query : What is the issue for not printing anything in dry run mode.

WhatsApp Image 2025-12-10 at 18.52.25.jpeg
           UART MODE with TERA TERM : 

            we have used tera term application inorder to send file as mentioned in the document , video of this attached below . 
 
             Query : After transfering file by selecting XMODEM it is not showing any transfer indication. 


Step 5 : Dev BOOT MODE : Since UART MODE NOT SUCCEDED we tried of running in Dev BOOT MODE.

             we created .ccxml file and then launch configurations done , and then we made changes in the load_sbl.js file as mentioned in the document , now we entered command in scripting console . After running it . it is automatically running the sbl_keywriter firmware . and also it not printing SUCCESS in the console . 

            Query : In console only starting bootloader is printed , and also code started running automatically after doing above steps . when clicked on pause , it is routing to HSM Clients reated .c file.

tidrive.ext.ti.com/.../


  • Hi Team,

    We obtained the output in the Terminal window as per given in the otp_keywriter_am263px_SR_10_10_01_00_00.

    But It is not same as given the otp_keywriter document. Here we are attaching the images comparing both of them.

    Is it okay to obtain like this? 

    Thanks and Regards

    Sravya K

  • Hi Sravya,

    It looks okay, seems like dry run mode is executing fine.

    The faliure are expected in dry run mode, as there is no actual programming that happens,

    On another note, please use latest version of OTP Keywriter