Getting Started with BPI-R4

Development

Basic Development

Prepare to develop

 * Prepare 8G/above TF card, USB-Serial interface, Ubuntu System
 * Using your USB-Serial Connect debug console on BPI-R3

 * R3 bootstrap and device select Jumper Setting
 

  Note: SW1-A and SW1-B is for boot strap selecting;
        SW1-C is that SPI-Nand or SPI-Nor Device is connected to CPU's SPI bus;
        SW1-D is that SD Card or EMMC device is connected tp CPU's EMMC bus.

  * Examples:
    All Jumper is High.
    

    All Jumper is Low.