Phoenix Serial Uploader (psu)#

psu is a tool designed to load firmware onto Phoenix-RTOS devices using the SDP (Script Download Protocol) protocol. This tool allows users to execute various commands on Phoenix-RTOS devices by executing scripts containing specific instructions. This tool can be used to upload firmware to NXP devices, specifically targeting devices like imxrt106x, imxrt117x, and imx6ull.


To use psu, follow the syntax:

psu [OPTIONS] script_path


  • -t: Set timeout for wait command (default is 10 seconds),

  • -h: Display help

Example Usage#

psu -t 15 script.sdp

SDP Script Syntax#

For information about supported command visit host-utils/psu

See also#

  1. Phoenix-RTOS disk tool

  2. Phoenix-RTOS daemon

  3. Phoenix-RTOS Host Utilities

  4. Table of Contents