Huaqing vision arm A8 uboot Process

1. A power supply, B USB, c
Serial Port

Connect power supply, USB, serial port to computer

2. Dial 4 of the dial switch to the other end.

3. Install the USB driver (in the compressed package)

4.open dnw_v0.60c.exe and click Configuration-> options. The result is as follows. Adjust the baud rate to 115200, usually com
Set port to com 1 and change download address to 0x27e00000

 

In this example, right-click the COM port query method and choose my computer> Device Manager> port: communication port.

5. Connection

The connection status is like this [COM1, 115200bps] [USB: OK] [ADDR: 0x27e00000]. If X is displayed, the connection is unsuccessful.

6. USB port-> transmit open USB installer_ddr2.bin (compressed package) complete no response continue previous open u-boot-drw.bin (compressed package) (after this step, there will be a countdown of several seconds, press enter before the countdown ends)

7. Input: dnw 2008000

The following result is displayed:

Repeat Step 1 to open the u-boot.bin (in the package)

The following result is returned: