Revision as of 07:58, 20 October 2023

Development

 * Prepare 8G/above TF card, USB-Serial cable, Ubuntu System
 * Using your USB-Serial cable Connect to debug console on BPI-R4

 * BPI-R4 bootstrap and device select Jumper Setting

  * Examples:

 1. All Jumper is "1", BPI-R4 will boot from SD card

 2. SW3-A is "0" and SW3-B is "1" , BPI-R4 will boot from SPI NAND

 3. SW3-A is "1" and SW3-B is "0" , BPI-R4 will boot from eMMC

The SFP serdes of BPI-R4 requesting link mode inband/10gbase-kr, so only SFP that support this protocol can be used！

Note:

The temperature of this module is very high when used for a long time, and can reach 90°C. Be careful to prevent burns.

Do not pull out this module once it is inserted, otherwise it will cause BPI-R4 to reboot.This phenomenon does not exist with other modules.

@@ Line 39: / Line 39: @@
 Note:
-The temperature of this module is very high when used for a long time, and can reach 90°C. Be careful to prevent burns.
+'''''The temperature of this module is very high when used for a long time, and can reach 90°C. Be careful to prevent burns.
+'''''
 Do not pull out '''this module''' once it is inserted, otherwise it will cause BPI-R4 to reboot.This phenomenon does not exist with other modules.