The I/O side ARM MCU firmware for Granite Devices ARGON servo motor drive.

Granite Devices or any of it's personnel doesn't take any responsibility of damages or losses caused by customized or user compiled firmware files! It is well possible to compile a firmware a way that breaks the hardware or causes danger or damage to users or their property. If unsure about what you're doing, leave it to others.

NOTE This guide is partially work in progress. More information and actual FW modification examples shall follow later.

a) GCC compiler for ARM

A GCC compiler toolchain for ARM is needed to compile the source code. Get GCC ARM toolchain from https://launchpad.net/gcc-arm-embedded

b) GNU Make

Source code of firmware and makefirmware utily is easily compiled by make command. For that, the GNU make must be installed in system. For Windows system, an easy way to obtain make is to install msys-make package from MinGW Installation Manager. MinGW site: http://www.mingw.org/ Download the installation manager at: http://sourceforge.net/projects/mingw/files/Installer/

1. Make sure that system path is set so that make and arm-none-eabi-gcc are found "globally" in the system. I.e. when you enter in command make or arm-none-eabi-gcc in a command prompt, you don't get any kind of "command not found" message.

2. If you're compiling firmware on Linux, you may need to build makefirmware utily before firmware compilation. You can do it by entering in subdirectory utils/makefirmware and running make command (assuming that native gcc toolchain in addition to ARM toolchain is installed). You can check installation of gcc by entering command gcc alone on command prompt and verify the response like you did in the step 1.

• Open command prompt and go to project directory where Makefile lies.

• Run make by entering command: make (Compiler outputs lots of stuff)

• When comipation is succeed, something like following text should become as last output lines:

    Create file 'argon_bootload_rom.gdf'
    Input size=39684 bytes, output=39684 bytes
    arm-none-eabi-size argon_bootload_rom.elf
    text    data     bss     dec     hex filename
    37516    2164    2468   42148    a4a4 argon_bootload_rom.elf
    text+data = FLASH usage, text = code, data = init vars, bss = RAM usage (incl stack), dec & hex = total
  

If so, then just generated argon_bootload_rom.gdf is the binary file going to Argon STM32 MCU.

Before uploading the newly compiled FW, make sure that you already have the latest available official Argon FW release installed in the drive because the custom I/O side firmware will not affect or upgrade GraniteCore version in the drive. Once latest official FW is present in the drive, continue uploading your newly built argon.gdf by following the FW upgrade instructions.

Be informed that Granite Devices doesn't take any responsibility of damages or losses caused by customzed or user compiled firmware files! It is possible to compile firmware a way that breaks the hardware or causes danger or damage to users or their property.

Avoid the usage of following C/C++ functionality due to embedded system restrictions (memory footprint, performance reasons etc):

• new and delete operators - make only static instances of classes
• virtual methods
• free() function (however malloc() is ok for static buffer allocation)
• math functions (sin, cos, sqrt) due to slow execution, however basic single precision floating point arithmetics is pretty fast (+,-,/,*)

The source is released "as is" without a promise to provide support on any topic related to it. To inquire development support service or customization jobs, send a message through http://granitedevices.com/support. Granite Devices offers I/O side, as well GraniteCore, firmware customization work on hourly rated fee.