Extremely basic ODROID-GO firmware file for setting DS3231M RTC.
- Put the .fw file on your microSD card under odroid/firmware.
- Connect the ODROID-GO to your PC via USB.
- Open the Arduino Serial Monitor (or any other one capable of sending data) at 192600 baudrate.
- Boot the .fw from the bootloader menu, accessible by holding down the B button while switching the system on. You should now see messages printed in the serial terminal.
- Send the command "SETDATE yyyy-mm-dd hh:mm:ss", where:
- yyyy = year
- mm = month
- dd = day
- hh = hour (24-hour format)
- mm = minute
- ss = second
So, for example, you could send the command "2021-01-21 18:08:15" to set the time to January 21, 2021 at 6:08:15 PM.
After sending the command, the monitor should send back messages counting up from the time you set.