如何修改RK3288 调试串口UART2为普通串口

发光的大白菜 · 发表于 2018-1-24 21:01:45

本帖最后由发光的大白菜于 2018-1-24 21:01 编辑

我们使用的是RK3288 android5.1系统

uart1和uart3都可以正常使用，但是uart2却只能用于调试，目前想要把uart1，uart2,和uart3都作为普通串口使用

论坛跟百度搜了好多方法修改都不成功

不知道有没有人成功把UART2修改为普通串口呢？望指点！

发光的大白菜 · 发表于 2018-1-24 21:03:58

参考过3399的修改
http://dev.t-firefly.com/forum.php?mod=viewthread&tid=12152&highlight=%B5%F7%CA%D4%B4%AE%BF%DA
但是在3288上面修改后，还是uart2为调试口

发光的大白菜 · 发表于 2018-1-29 08:59:27

别沉啊

vinsionLeo · 发表于 2018-2-24 09:41:10

make menuconfig-->
System Type --->
(2) Debug UART
可以把2改为3后，调试串口变成uart3
但是还有一个问题，就是u-boot打印的调试信息还是从uart2出来，怎么样才能关闭或者修改Uboot打印呢
ps: 修改过parameter文件，没有效果

jpchen · 发表于 2018-2-26 09:08:37

1.修改
--- a/device/rockchip/common/ueventd.rockchip.rc
+++ b/device/rockchip/common/ueventd.rockchip.rc
@@ -49,7 +49,7 @@
# for BT
/dev/vflash             0660 bluetooth  net_bt_stack
#/dev/ttyS0             0660 bluetooth  net_bt_stack
-/dev/ttyS2             0660 bluetooth  net_bt_stack
+/dev/ttyS2             0666 bluetooth  net_bt_stac
/dev/rtk_btusb          0660 bluetooth  net_bt_stack
# for radio
2.替换rk3288box-3.10-uboot.parameter.txt 文件

rk3288box-3.10-uboot.parameter.zip (660 Bytes, 下载次数: 58)

发光的大白菜 · 发表于 2018-2-26 10:16:22

jpchen 发表于 2018-2-26 09:08
1.修改
--- a/device/rockchip/common/ueventd.rockchip.rc
+++ b/device/rockchip/common/ueventd.rockc ...

替换了rk3288box-3.10-uboot.parameter.txt文件后，系统起不来，一直卡在starting kernel... 的位置

DDR Version 1.00 20160530
In
Channel a: DDR3 200MHz
Bus Width=32 Col=10 Bank=8 Row=15 CS=1 Die Bus-Width=16 Size=1024MB
Channel b: DDR3 200MHz
Bus Width=32 Col=10 Bank=8 Row=15 CS=1 Die Bus-Width=16 Size=1024MB
Memory OK
Memory OK
OUT
U-Boot 2014.10-RK3288-10 (Jan 14 2018 - 17:16:07)
CPU: rk3288
cpu version = 0
CPU's clock information:
arm pll = 600000000HZ
periph pll = 297000000HZ
ddr pll = 200000000HZ
codec pll = 384000000HZ
Board: Rockchip platform Board
DRAM: Found dram banks: 1
Adding bank:0000000000000000(0000000080000000)
128 MiB
GIC CPU mask = 0x00000001
SdmmcInit = 0 400
SdmmcInit = 2 0
storage init OK!
Using default environment
GetParam
Load FDT from resource image.
power key: bank-0 pin-5
pmic:act8846
can't find dts node for pwm1
DCDC vdd_logic has been used, pwm regulator not init it.
Can't find dts node for fuel guage cw201x
SecureBootEn = 0, SecureBootLock = 0
#Boot ver: 2018-01-14#2.30
empty serial no.
checkKey
vbus = 1
no fuel gauge found
no fuel gauge found
read logo on state from dts [0]
no fuel gauge found
got recovery cmd from misc.
load fdt from resouce.
Secure Boot state: 0
kernel @ 0x02000000 (0x006a70c0)
ramdisk @ 0x05bf0000 (0x002ad210)
bootrk: do_bootm_linux...
Loading Device Tree to 05600000, end 0561c4a7 ... OK
Add bank:0000000000000000, 0000000080000000
Starting kernel ...

复制代码

Creek · 发表于 2018-12-24 19:44:18

后面解决了吗？