dual bootloader

[zhangeh10594]

Hello, recently when I am modifying the verision of image referring to AN12327SW and the AN12327.After I excute this steps " Close the serial terminal. Open bash window or command window and execute flash_program.bat. This script calls blhost.exe and downloads dsbl_app_crc.bin in the Receive Region. Running flash_program.bat need two parameters. First is UART COM index, second is the full name of the app image." It causes an unexpected error shows like this:

So,I have three quetions:

1:How to solve this problem.

2.If I want to modify the version of the image , which step should I do?

3,Is there any other methods to download the new apps to update the images?

This questions pullze me long time ,I hope you can help me.Thanks!

[Alice_Yang]

Hello ,

- From your picture, it seems the UART haven't communicate well, please check Device Manage to confirm

it COM7, and fist just try command  

  blhost.exe -p COM7 get-property 1

- If you just want to update apps, you can directly use blhost to download when your chip entered ISP mode.

Hope it helps,

BR

Alice