I hope you are doing well
The Serial Downloader provides a means to download a Program Image to the chip over USB serial connection.
To use the serial download mode, one needs to set boot mode pins accordingly. Please refer to
Table 5-1. Boot MODE Pin Settings from the Reference Manual
IMX8DQXPRM.
To know more about serial download boot, please refer to section 5.10 Serial Downloader Boot from the Reference Manual IMX8DQXPRM.
Thanks & Regards
Sanket Parekh