1. Using AndroidTool.
Step1 请先准备一条mirco USB 线材和Debug Cable
Mirco USB
Debug Cable
Step2 Double click DriverInstal
Step3 Enter into MASKROM mode .
There are two ways to enter MASKROM
1. Hardware way to enter MASKROM
Step1将Mirco USB的OTG端插在板卡的USB0_OTG1端口上,USB端插在PC上,如下图
Step 2 将底板ROM-DB5901的SW1(BOOT SEELECT)拨码如下
Step 3 使用12V 3A的电源上电,并打开瑞芯微开发工具V2.71,如下图
Step 4当板卡进入MASKROM模式后,将底板ROM-DB5901 SW1的4、5拨回OFF(1-6均为OFF),再点击“执行”开始进行烧录。
2. Software way to enter MASKROM
When the device boot up to android or debian, you can use ADB or Debug console, send command "reboot loader" .
Or Press "ctrl + c" key when booting into uboot, until get the following information on debug console :
Android 10:
Hit any key to stop autoboot:0
rkboot # <INTERUPT>
rkoot # =>rbrom
I2C2 speed: 100000Hz
Debian 9.x':
Hit any key to stop autoboot:0
rkboot # <INTERUPT>
rkoot # =>rbrom
点击“高级功能”,进行选择,点击“进入Maskrom”,如下图所示: