Recently,I get a SABRE Board for Smart Devices Based on the i.MX 6 Series. Are there any documents related to how to use the SABRE Board for Smart Devices Based on the i.MX 6? Also,I want to boot from the SD3. Which configurations should I set and select? What else should I set to enable boot from SD3?
Additionally, I want to use the uart to output the messages from boot and kernel. However,I do not see the uart connector. Will I pull out the uart? Could I use the usb to output and control the device? How can I set to use the USB ADB functions?