Can we also use IDEs like MCUxpresso,Keil or IAR for Colibri iMX6 board if we want to use the board for ethercat?
You can use any tools which supports iMX6 SOC, though we don’t have a board support package for any IDE listed above. Colibri iMX6 module datasheet has enough information for bare metal programming. You can also refer to U_boot and Linux source code. Module has a JTAG connector so you can do a debugging if selected IDE supports it. We are glad to provide any other info about module’s details. Please ask tools vendors about anything related to IDE usage.