imx6usbd is a USB serial image downloader specifically made for NXP I.MX6ULL chip. Written in C++, it aims to provide an efficient and easily understood SDP protocol USB image downloader implementation for I.MX6ULL compared to other alternatives, e.g. imx_usb_loader.

• This tool is for Linux only, at least porting it to Windows is beyond my capability...
• A C++ compiler that supports C++17 standard, e.g. clang-14
• cmake
• libudev, which should be already there with reasonably recent distros
• Linux hidraw driver, which should definitely be there and working already so long as you are not using things like WSL

building the tool:

mkdir build
cmake -B build [-G your_preferred_generator ] [-DCMAKE_BUILD_TYPE Release|RelWithDebInfo|Debug]
cmake --build build

using the tool:

./build/imx6usbd

path: 1 argument(s) expected. 0 provided.
Usage: I.MX6ULL USB image downloader [--help] [--version] [--dcdla ADDR] PATH

Positional arguments:
  PATH                  path to imx image to download 

Optional arguments:
  -h, --help            shows help message and exits 
  -v, --version         prints version information and exits 
  -d, --dcdla ADDR      dcd load address, provide with prefix 0x! [default = 0x00907000] 

Example usage: imx6usbd --dcdla 0x00910000 /path/to/img.imx

NOTE: the image MUST be a valid .imx image file, check i.MX 6ULL Application Processor Reference Manual, Ch. 8.7, Program image if you are not sure.

With current version of this software 0.1.1, when built directly from the source and used as a commandline tool, imx6usbd could only be used for loading a valid .imx image to an I.MX6ULL device.

However above, the codes in this repository gives you an convenient way to communicate with an I.MX6ULL device using SDP protocol, for example, reading and writing values to I.MX6ULL device memory via USB connection. So it should be easy to extend the code for other uses. Just take a little time to read it if you are planning to do so and the comments inside would be useful.

Support for json action script is planned for version 0.2.0