From f27885ce6bb267fd498000ec5e979e28e84d54f9 Mon Sep 17 00:00:00 2001 From: anheng <12857953+aahh123456@user.noreply.gitee.com> Date: Mon, 13 May 2024 12:04:29 +0800 Subject: [PATCH] DIO --- RK3568_Android_SDK开发文档/images/d3348419dd510670f7c897be5dec417e_.jpg | 0 RK3568_Android_SDK开发文档/images/d4220b70053963e8c9846de84e68b129_.jpg | 0 RK3568_Android_SDK开发文档/images/57c8bc8656696e1eff33f79e808344e2_.jpg | 0 RK3568_Android_SDK开发文档/images/f96ddb352acf28b8a7088acf58e72ab6_.jpg | 0 RK3568_Android_SDK开发文档/images/8d0dcd185714d7a482bc6e537d904837_.jpg | 0 RK3568_Android_SDK开发文档/images/ea23d8f7b3f22251da9646a52106a24.jpg | 0 RK3568_Android_SDK开发文档/images/image-20240513112435295.png | 0 RK3568_Android_SDK开发文档/RK3568_Android_SDK开发文档.md | 50 ++++++++++++++++++++++++++++++++++++++++++++++++++ RK3568_Android_SDK开发文档/images/image-20240513115053582.png | 0 RK3568_Android_SDK开发文档/images/image-20240513112427985.png | 0 10 files changed, 50 insertions(+), 0 deletions(-) diff --git "a/RK3568_Android_SDK\345\274\200\345\217\221\346\226\207\346\241\243/RK3568_Android_SDK\345\274\200\345\217\221\346\226\207\346\241\243.md" "b/RK3568_Android_SDK\345\274\200\345\217\221\346\226\207\346\241\243/RK3568_Android_SDK\345\274\200\345\217\221\346\226\207\346\241\243.md" index 74070cc..a95c5ca 100644 --- "a/RK3568_Android_SDK\345\274\200\345\217\221\346\226\207\346\241\243/RK3568_Android_SDK\345\274\200\345\217\221\346\226\207\346\241\243.md" +++ "b/RK3568_Android_SDK\345\274\200\345\217\221\346\226\207\346\241\243/RK3568_Android_SDK\345\274\200\345\217\221\346\226\207\346\241\243.md" @@ -641,6 +641,56 @@ **当我们将EM05配置成ECM模式后，在Linux下就可以直接获取ip地址，直接上网了，但是在Android系统下不会有这些服务，解决方法见 5. Android 出现4G模块无法上网问题** +## 3.8 DIO测试 + +### 3.8.1 硬件原理图说明 + + + + + + + + + +### 3.8.2 Din测试 + + + +按照上图的说明方法，将Din-0短接GND,此时Din-0输出低电平，测量R6114两侧的电压值，红表笔接一侧，黑笔接地。此时可以发现万用表显示电压为0.17v左右。其他的三个Din均是相同的方法。 + +**注意：为什么不是0V而是0.17v的微弱电压？** + +**因为从下图可以看出光耦内置三极管的CE结，饱合导通时会存在一定的压降，这个0.17v即为压降。** + + + +### 3.8.3 Dout测试 + + + +如上图所示连接好电路，以Dout-0为例说明，其他的Dout的测试方法均相同 + +输入`gpioset 0 4=0`，使gpio输出为低电平，用万用表测试R6211两端的电压正常情况均为0v。 + +输入`gpioset 0 4=1`，使gpio输出为高电平，用万用表测试R6211两端的电压正常情况均为3.3v。 + + + +**注意：在RK3568上如果某个gpio没有被复用，默认情况下该引脚的模式是gpio模式，但是此处的GPIO0_PA4例外，所以需要在设备树中特殊配置一下该引脚使用gpio模式。** + + + +### 3.8.4 Dout/ Din 联合测试 + + + +如上图所示将Din与Dout连接好，通过改变Dout的输出电平，检测Din是否收到对应的电平，以Din-0和Dout-0为例说明 + +输入`gpioset 0 4=0` `gpioget 3 3`,显示Din-0的电平应为0 + +输入`gpioset 0 4=1` `gpioget 3 3`,显示Din-0的电平应为1 + # 4. ADB调试工具 diff --git "a/RK3568_Android_SDK\345\274\200\345\217\221\346\226\207\346\241\243/images/57c8bc8656696e1eff33f79e808344e2_.jpg" "b/RK3568_Android_SDK\345\274\200\345\217\221\346\226\207\346\241\243/images/57c8bc8656696e1eff33f79e808344e2_.jpg" new file mode 100644 index 0000000..36ee259 --- /dev/null +++ "b/RK3568_Android_SDK\345\274\200\345\217\221\346\226\207\346\241\243/images/57c8bc8656696e1eff33f79e808344e2_.jpg" Binary files differ diff --git "a/RK3568_Android_SDK\345\274\200\345\217\221\346\226\207\346\241\243/images/8d0dcd185714d7a482bc6e537d904837_.jpg" "b/RK3568_Android_SDK\345\274\200\345\217\221\346\226\207\346\241\243/images/8d0dcd185714d7a482bc6e537d904837_.jpg" new file mode 100644 index 0000000..cd9017a --- /dev/null +++ "b/RK3568_Android_SDK\345\274\200\345\217\221\346\226\207\346\241\243/images/8d0dcd185714d7a482bc6e537d904837_.jpg" Binary files differ diff --git "a/RK3568_Android_SDK\345\274\200\345\217\221\346\226\207\346\241\243/images/d3348419dd510670f7c897be5dec417e_.jpg" "b/RK3568_Android_SDK\345\274\200\345\217\221\346\226\207\346\241\243/images/d3348419dd510670f7c897be5dec417e_.jpg" new file mode 100644 index 0000000..9ded358 --- /dev/null +++ "b/RK3568_Android_SDK\345\274\200\345\217\221\346\226\207\346\241\243/images/d3348419dd510670f7c897be5dec417e_.jpg" Binary files differ diff --git "a/RK3568_Android_SDK\345\274\200\345\217\221\346\226\207\346\241\243/images/d4220b70053963e8c9846de84e68b129_.jpg" "b/RK3568_Android_SDK\345\274\200\345\217\221\346\226\207\346\241\243/images/d4220b70053963e8c9846de84e68b129_.jpg" new file mode 100644 index 0000000..9ccfcbf --- /dev/null +++ "b/RK3568_Android_SDK\345\274\200\345\217\221\346\226\207\346\241\243/images/d4220b70053963e8c9846de84e68b129_.jpg" Binary files differ diff --git "a/RK3568_Android_SDK\345\274\200\345\217\221\346\226\207\346\241\243/images/ea23d8f7b3f22251da9646a52106a24.jpg" "b/RK3568_Android_SDK\345\274\200\345\217\221\346\226\207\346\241\243/images/ea23d8f7b3f22251da9646a52106a24.jpg" new file mode 100644 index 0000000..bb4180a --- /dev/null +++ "b/RK3568_Android_SDK\345\274\200\345\217\221\346\226\207\346\241\243/images/ea23d8f7b3f22251da9646a52106a24.jpg" Binary files differ diff --git "a/RK3568_Android_SDK\345\274\200\345\217\221\346\226\207\346\241\243/images/f96ddb352acf28b8a7088acf58e72ab6_.jpg" "b/RK3568_Android_SDK\345\274\200\345\217\221\346\226\207\346\241\243/images/f96ddb352acf28b8a7088acf58e72ab6_.jpg" new file mode 100644 index 0000000..cc9ec44 --- /dev/null +++ "b/RK3568_Android_SDK\345\274\200\345\217\221\346\226\207\346\241\243/images/f96ddb352acf28b8a7088acf58e72ab6_.jpg" Binary files differ diff --git "a/RK3568_Android_SDK\345\274\200\345\217\221\346\226\207\346\241\243/images/image-20240513112427985.png" "b/RK3568_Android_SDK\345\274\200\345\217\221\346\226\207\346\241\243/images/image-20240513112427985.png" new file mode 100644 index 0000000..d3352f7 --- /dev/null +++ "b/RK3568_Android_SDK\345\274\200\345\217\221\346\226\207\346\241\243/images/image-20240513112427985.png" Binary files differ diff --git "a/RK3568_Android_SDK\345\274\200\345\217\221\346\226\207\346\241\243/images/image-20240513112435295.png" "b/RK3568_Android_SDK\345\274\200\345\217\221\346\226\207\346\241\243/images/image-20240513112435295.png" new file mode 100644 index 0000000..d229715 --- /dev/null +++ "b/RK3568_Android_SDK\345\274\200\345\217\221\346\226\207\346\241\243/images/image-20240513112435295.png" Binary files differ diff --git "a/RK3568_Android_SDK\345\274\200\345\217\221\346\226\207\346\241\243/images/image-20240513115053582.png" "b/RK3568_Android_SDK\345\274\200\345\217\221\346\226\207\346\241\243/images/image-20240513115053582.png" new file mode 100644 index 0000000..c5154ed --- /dev/null +++ "b/RK3568_Android_SDK\345\274\200\345\217\221\346\226\207\346\241\243/images/image-20240513115053582.png" Binary files differ -- Gitblit v1.9.1