Android 9 Source Code

davemf · July 14, 2019, 7:19am

@mo123
Thank you. It’s work.

@Terry
Please, update your gapps. You can download they here.

goenjoy · July 15, 2019, 1:15am

We all downloaded and compiled all OK, now only you have a problem, maybe not downloaded completely.

davemf · July 20, 2019, 5:29pm

@Terry
Does Khadas EDGE (android 9) has sleep mode with low power mode like VIM1/2?

Terry · July 22, 2019, 5:49am

You are right. The EDGE has sleep mode with low power.

davemf · July 22, 2019, 5:35pm

@Terry
I don’t understand how to enter on low power mode?

davemf · July 23, 2019, 7:00pm

@Terry
How to activate UART1 ?

goenjoy · July 24, 2019, 1:08am

Activated, connected to the serial port can be used.

davemf · July 24, 2019, 4:16pm

@goenjoy
No, it is not activate.
Need to activate &uart2 in rk3399-khadas-edge.dtsi

Name is ttyS2

@Terry
Why EDGE does not start if uart1 is connected?
How to fix it?

goenjoy · July 25, 2019, 1:30am

This UART2 has two functions: serial port printing debugging function and common serial port.

The two config are as follows:

FIQ debugging function config of UART2:

&uart2 {
	status = "disabled";
};

Common serial port config of UART2:

&uart2 {
	status = "okay";
};

&fiq_debugger {
	rockchip,serial-id = <0xffffffff>;
	status = "okay";
};

davemf · July 27, 2019, 9:08am

@goenjoy
It does not work.

EDGE does not start if uart1 is connected.
How to fix it?

goenjoy · July 27, 2019, 10:00am

Please describe in more detail the phenomena and steps of the problem, and what is the serial device you are connected to?

davemf · July 27, 2019, 1:11pm

@goenjoy
I connected Gps receiver.
Vim1 and vim2 work perfect. EDGE does not boot…

goenjoy · July 29, 2019, 2:44am

First confirm the voltage matching, 3.3V level is needed.

goenjoy · July 29, 2019, 2:52am

In addition, read and write permission for this serial port is required：

chmod 777 /dev/ttyS2

uart tool test download

goenjoy · July 29, 2019, 4:40am

To sum up, UART2 should be used as a common serial port. The following modifications are required:

Firstly, confirm whether the voltage of serial device matches or not.
uart2 config:

&uart2 {
	status = "okay";
};

&fiq_debugger {
	rockchip,serial-id = <0xffffffff>;
	status = "okay";
};

read and write permission for this serial port is required

--- a/init.rk30board.rc
+++ b/init.rk30board.rc
@@ -229,7 +229,9 @@ on boot
     chmod 0666 /sys/class/wol/rst_mcu
        #add for buzzer
        chmod 0666 /sys/class/w25q128fw/buzzer
-
+       
+       #add for ttyS2
+       chmod 777 /dev/ttyS2
        #add for mac_addr

davemf · July 29, 2019, 6:16am

@goenjoy
No no, voltage and other is correct, I use 3.3V on EDGE header.
I mean that:

If EDGE was start firstly and then I connect GPS on uart1, GPS works good, I can see all data on uart1.
If I connect GPS on uart1 firstly, and then push power button on EDGE, EDGE does not boot. It shows rockchip logo only.

goenjoy · July 29, 2019, 7:35am

Please describe the problem clearly later. Add the following modifications:
u-boot/

--- a/common/autoboot.c
+++ b/common/autoboot.c
@@ -212,6 +212,8 @@ static int __abortboot(int bootdelay)
 {
        int abort = 0;
        unsigned long ts;
+       
+       return abort;

davemf · July 29, 2019, 7:20pm

It fixes my issue.
Thank you!

One question.: how to repack img form out folder?

goenjoy · July 30, 2019, 1:07am

https://docs.khadas.com/edge/BuildAndroid.html

$ cd PATH_YOUR_PROJECT
$ source build/envsetup.sh
$ lunch rk3399-userdebug
$ ./mkimage.sh
$ ./pack_image.sh

davemf · July 30, 2019, 4:43am

Yes, I try it, but is works strange. If I add new files in out folder or modif some files, then repack img with commands “. /mkimage.sh” and “. /pack_image.sh”. Sometime ROM don’t contain new files, sometime contain.
I don’t understand why it happens…
May be need something more?