Since the outbreak reasons do not have to develop information and tools sake, home office can only work early to do some review and summary facilitate the development of the latter project.
1. Second Edition by the controller chip to cv22AX76 cv22AQ36, two chips are some differences in the frequency cpu, AQ36 relatively lower frequency, some cheap, here relates to a board configured to modify the configuration AQ36 config file.
2. Power-on module is not the same way, the power module to the first edition of the IO port cv22 control, the second edition to be controlled by the MCU, the power module has theoretically timing requirements, first mcu power, then the power max9286, - "reset rESET, -" on max96705 power. We currently on the electrical connection between the module and the second edition of mcu does not reflect the timing requirements, the latter part of the hardware to cooperate with the local investigation is carried out.
3.
Later work:
The system starts by the way linuxrc instead systemd way to start (make cv22_xx_cleanboot_ubifs_config)
