Getting Started with BPI-R4

Development

Basic Development

Prepare to develop

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

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 * BPI-R4 bootstrap and device select Jumper Setting

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  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.