i.MX BSP定制指南：Linux移植与配置详解

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本指南详细阐述了如何基于i.MX基础软件平台(BSP, i.MX BSPPorting Guide)构建定制的i.MX解决方案。该文档主要关注Linux内核定制、U-Boot移植以及针对特定硬件配置的相关步骤，适用于在独立开发环境和Yocto Project中进行开发。 第1章“介绍”概述了文档的目的和背景，包括基本概念和参考文献，帮助读者理解整个过程的上下文。它可能涵盖了i.MX SoC的特点和为何选择定制BSP的重要性。 第二部分是“Porting Kernel”，分为两个小节： 1. **Kernel overview**：这部分介绍了如何在独立环境中构建和加载定制的Linux内核，包括必要的编译步骤和加载机制。对于有经验的开发者来说，这将指导他们如何适应新的硬件特性并确保内核与i.MX SoC兼容。 2. **Yocto Project支持**：接着，章节详细说明了如何在Yocto Project平台上集成和配置内核，这是一个流行的开源项目管理工具，用于构建嵌入式Linux系统。 第三章“Porting U-Boot”涵盖了U-Boot的移植流程： 1. **U-Boot overview**：简要介绍了U-Boot的作用，它是低级启动加载器，用于引导Linux内核。开发者需要了解如何构建和加载U-Boot以支持定制硬件。 2. **Building U-Boot in standalone environment**：提供了在独立环境中构建U-Boot的方法，包括对内存初始化表(DCD table)的自定义，以便适配i.MX DDR内存。 3. **Customizing the i.MX board code**：这部分深入讲解如何修改U-Boot代码，添加新的驱动初始化代码，并在系统启动时进一步定制。 4. **Debugging**：为了确保开发过程中的问题解决，文档还介绍了使用JTAG工具和printf进行调试的方法。 第四章“Configuring IOMUX Controller”专用于i.MX的输入/输出接口管理器(IOMUX)： 1. **IOMUX overview**：介绍IOMUX控制器的基本原理和功能，以及设置其寄存器的必要信息。 2. **Setting IOMUX controller registers**：提供实际操作步骤，帮助开发者配置IOMUX以支持特定的硬件连接和信号传输。 通过这个i.MX BSPPorting Guide，开发人员可以遵循清晰的指导，从基础配置到高级定制，有效地为他们的定制硬件平台创建一个完整的Linux支持系统。无论是在独立开发还是利用Yocto Project这样的工具链，都能从中获益良多。

imx8qxp bsp rm

2019-08-06 上传
i.mx8qxp linux bsp rm, which explain some detailed driver, include the menuconfig, source codes, and basic information

Application_Note_RTL819X.pdf

2019-07-26 上传
RTL819X系列的芯片方案，SDK开发指导手册。 1. Introduction .................................................................................................................................7 1.1. Feature Lists .................................................................................................................7 1.2. Channel Plan ................................................................................................................8 1.2.1. 2.4G Channel Plan ................................................................................................8 1.2.2. 5G Channel Plan ...................................................................................................8 2. Configuration..............................................................................................................................10 2.1. Configuration Files .....................................................................................................10 2.2. MIB .............................................................................................................................11 2.3. iwconfig/iwlist............................................................................................................29 2.3.1. iwconfig ..............................................................................................................29 2.3.2. iwlist ...................................................................................................................30 3. Basic Driver Operation and Setting ............................................................................................32 3.1. Basic Driver Operation ...............................................................................................32 3.1.1. Bring up Interface...............................................................................................32 3.1.2. Set MAC Address ................................................................................................32 3.1.3. Down Interface...................................................................................................32 3.2. Basic Driver Setting ....................................................................................................32 3.2.1. 802.11 b/g/n mode ............................................................................................32 3.2.2. Channel ..............................................................................................................33 3.2.3. SSID ....................................................................................................................34 3.2.4. TX Rate ...............................................................................................................34 3.2.5. Hidden AP...........................................................................................................34 3.2.6. No Encryption.....................................................................................................35 4. Dual-band Configuration............................................................................................................36 4.1. Related MIB................................................................................................................36 4.2. Examples ....................................................................................................................37 4.2.1. Setting as 5G Single MAC/PHY selective mode..................................................37 4.2.2. Setting as 2G Single MAC/PHY selective mode..................................................38 4.2.3. Setting as the Dual MAC/PHY concurrent mode................................................38 5. Security Policy ............................................................................................................................40 5.1. WEP ............................................................................................................................40 5.1.1. Related MIB........................................................................................................40 5.1.2. WEP 64 example ................................................................................................40 5.1.3. WEP 128 example ..............................................................................................40 5.2. WPA/WPA2 PSK..........................................................................................................41 5.2.1. Related MIB........................................................................................................41 5.2.2. WPA AES example ..............................................................................................41 5.2.3. WPA TKIP example .............................................................................................41 5.2.4. WPA2 AES example ............................................................................................42 5.2.5. WPA2 TKIP example ...........................................................................................42 5.2.6. WPA/WPA2 AES mixed mode example ..............................................................42 5.2.7. WPA/WPA2 TKIP mixed mode example .............................................................42 5.2.8. WPA/WPA2 auto mixed mode example.............................................................43 5.3. Mix Security Setting for Client Mode .........................................................................43 5.3.1. Related MIB........................................................................................................44 6. Dynamic Frequency Selection (DFS) ..........................................................................................45 7. Multiple BSSID............................................................................................................................45 7.1. Related MIB................................................................................................................45 7.2. Example of Setup .......................................................................................................46 7.2.1. Enable MBSSID feature and Open two VAP interfaces ......................................46 7.2.2. Stop one VAP interface.......................................................................................47 7.2.3. Disable MBSSID feature and stop two VAP interfaces .......................................47 7.2.4. Set VAP SSID .......................................................................................................47 7.3. Important Notes.........................................................................................................47 8. WMM .........................................................................................................................................49 8.1. Feature Description....................................................................................................49 8.2. Related MIB................................................................................................................49 9. WDS............................................................................................................................................50 9.1. Feature Description....................................................................................................50 9.2. Related MIB................................................................................................................50 9.3. WDS Example .............................................................................................................51 9.3.1. WDS with No Encryption Example .....................................................................51 9.3.2. WDS with WEP 64 bit Encryption Example........................................................51 9.3.3. WDS with AES Encryption Example....................................................................52 9.4. Important Notes.........................................................................................................53 10. 802.1X ................................................................................................................................54 10.1. System Architecture ...................................................................................................54 10.2. 802.1X Related Daemons Introduction ......................................................................54 10.2.1. iwcontrol Daemon Introduction.........................................................................54 10.2.2. 802.1X Daemon Introduction.............................................................................55 10.3. 802.1X Start Procedure ..............................................................................................55 10.4. WPA Config File..........................................................................................................55 10.4.1. Config File Related Parameters ..........................................................................55 10.5. 802.1X Example..........................................................................................................57 10.5.1. 802.1X with WPA AES Example ..........................................................................57 10.5.2. 802.1X with WPA2 AES Example ........................................................................58 10.5.3. 802.1X with WPA/WPA2 AES/TKIP mixed mode Example .................................58 11. IAPP ....................................................................................................................................60 12. WPS ....................................................................................................................................60 13. IGMP Snooping...................................................................................................................61 13.1. The process flow of IGMP snooping ..........................................................................61 13.2. Related MIB................................................................................................................62 13.3. IGMP snooping Example ............................................................................................62 14. Multiple AP profile .............................................................................................................63 14.1. Related MIB................................................................................................................63 14.2. How to debug.............................................................................................................65 15. Mesh...................................................................................................................................66 15.1. Related MIB................................................................................................................66 15.2. Pathsel Deamon .........................................................................................................67 15.3. Example......................................................................................................................67 15.3.1. Enable Mesh.......................................................................................................67 15.3.2. Disable Mesh......................................................................................................68 15.3.3. Enable Dual-Band Mesh.....................................................................................68 15.3.4. Disable Dual-Band Mesh ....................................................................................69 15.4. Debug and Web Information .....................................................................................69 16. Mass Production ................................................................................................................70 17. Other User Space Utilities ..................................................................................................70 17.1. iwpriv Utility...............................................................................................................70 17.1.1. Read WLAN register ...........................................................................................70 17.1.2. Write WLAN register ..........................................................................................70 17.1.3. Read WLAN memory..........................................................................................70 17.1.4. Write WLAN memory.........................................................................................70 17.2. Proc Files ....................................................................................................................71 17.3. IOCTL ..........................................................................................................................72 18. Hardware Limitation ..........................................................................................................75 18.1. Limitation ...................................................................................................................75 19. 802.11R Support ................................................................................................................76 19.1.1. Enable fast roaming............................................................................................76 19.1.2. Disable fast roaming...........................................................................................76 19.1.3. Debug information of fast roaming....................................................................76

BSP User Guide Freescale i.MX6x SABRE Smart Device

2018-12-02 上传
BSP User Guide: Freescale i.MX6x SABRE Smart Devices contains installation and start-up instructions for the QNX Board Support Package (BSP) for the Freescale i.MX6x SABRE Smart Devices boards. This BSP is valid for Freescale i.MX6x SABRE Smart Devices boards with Quad, Dual, DualLite or Solo processors. For convenience, in this document we may sometimes just use “SABRE” to denote these boards.

void sl_notify_gap_evt_to_porting_layer(sl_bt_msg_t *evt) { sl_status_t sc; bd_addr address; uint8_t address_type; struct ble_gap_event event; memset(&event, 0, sizeof(event)); switch (SL_BT_MSG_ID(evt->header)) { // ------------------------------- // This event is generated when an advertisement packet or a scan response // is received from a responder case sl_bt_evt_scanner_legacy_advertisement_report_id: memset(&event, 0, sizeof(event)); event.type = BLE_GAP_EVENT_DISC; event.disc.event_type = convert_to_nimble_adv_type(evt->data.evt_scanner_legacy_advertisement_report.event_flags); event.disc.length_data = evt->data.evt_scanner_legacy_advertisement_report.data.len; event.disc.data = evt->data.evt_scanner_legacy_advertisement_report.data.data; event.disc.addr.type = evt->data.evt_scanner_legacy_advertisement_report.address_type; memcpy(event.disc.addr.val, evt->data.evt_scanner_legacy_advertisement_report.address.addr, 6); event.disc.rssi = evt->data.evt_scanner_legacy_advertisement_report.rssi; notify_ble_event_to_listeners(&event); break; // ------------------------------- // This event indicates that a new connection was opened. case sl_bt_evt_connection_opened_id: event.type = BLE_GAP_EVENT_CONNECT; event.connect.conn_handle = evt->data.evt_connection_opened.connection; app_log_info("BLE connected, conn_id:%d\n", event.connect.conn_handle); notify_ble_event_to_listeners(&event); break; // ------------------------------- // This event indicates that a connection was closed. case sl_bt_evt_connection_closed_id: event.type = BLE_GAP_EVENT_DISCONNECT; event.disconnect.conn.conn_handle = evt->data.evt_connection_closed.connection; event.disconnect.reason = evt->data.evt_connection_closed.reason; app_log_info("BLE disconnected, conn_id:%d, reason:0x%02x\n", event.disconnect.conn.conn_handle, event.disconnect.reason); notify_ble_event_to_listeners(&event); break; case sl_bt_evt_gatt_mtu_exchanged_id: event.type = BLE_GAP_EVENT_MTU; event.mtu.conn_handle = evt->data.evt_gatt_mtu_exchanged.connection; event.mtu.value = evt->data.evt_gatt_mtu_exchanged.mtu; app_log_info("exchange mtu req: %d\n", event.mtu.value); notify_ble_event_to_listeners(&event); break; default: break; } }

2023-06-10 上传
这是一个函数的具体实现，实现了将 GAP 事件通知到 porting layer 的功能。函数接收一个 `sl_bt_msg_t` 类型的指针作为参数，根据不同的 GAP 事件类型，将事件转换成 nimble 的 BLE GAP 事件，然后通知给监听器进行...

..\Middlewares\LVGL\GUI\lvgl\examples\porting\lv_port_disp_template.c(144): error: #171: invalid type conversion

2023-09-02 上传
在..\Middlewares\LVGL\GUI\lvgl\examples\porting\lv_port_disp_template.c文件的第144行，出现了一个错误: #171: invalid type conversion。<span class="em">1</span><span class="em">2</span><span class="em">...

void sl_notify_gap_evt_to_porting_layer(sl_bt_msg_t *evt)

2023-06-10 上传
函数名为 `sl_notify_gap_evt_to_porting_layer`，接受一个 `sl_bt_msg_t` 类型的指针作为参数。根据函数名中的 `gap_evt` 可以猜测这个函数的作用是将 GAP（Generic Access Profile）事件通知到某个“porting layer...

stm32f103c8t6跑lvgl

2023-09-08 上传
1. 创建一个名为lvgl的文件夹，将LVGL源码中的`src`、`examples/porting`文件夹，以及`lv_conf_template.h`和`lvgl.h`复制到该文件夹中。 2. 删除`porting`文件夹下所有文件名中的`template`后缀，同样将`lv_conf_...

ERROR: Could not install packages due to an OSError: [Errno 2] No such file or directory: 'C:\\Users\\86158\\AppData\\Local\\Packages\\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p 0\\LocalCache\\local-packages\\Python310\\site-packages\\tensorflow\\include\\external\\com_github_grpc_grpc\\src\\core\\ext\\filters\\client_channel\\lb_policy\\grpclb\\client_load_re porting_filter.h' HINT: This error might have occurred since this system does not have Windows Long Path support enabled. You can find information on how to enable this at https://pip.pypa.io/warnings/e nable-long-paths

2023-06-01 上传
这个错误提示是由于你在安装TensorFlow时遇到了问题。建议你尝试使用管理员权限打开命令提示符或PowerShell，并在命令行中输入以下命令： ``` pip install --upgrade pip pip install --upgrade tensorflow ...

DLL load failed while imDLL load failed while importing _C: 找不到指定的模块porting _C: 找不到指定的模块

2024-05-14 上传
print(torch.__version__)命令获取当前使用的PyTorch版本号。 2. 确认系统环境变量是否正确。检查是否正确配置了CUDA、cuDNN等系统环境变量，以及是否正确安装了相关的CUDA驱动和库文件。 3. 确认依赖项是否齐全。...

蓝牙协议栈到mcu的移植 最新英文文献?

2023-05-13 上传
1. "Bluetooth Protocol Stack Porting on an ARM Cortex-M3 Microcontroller" by P. S. Kulkarni and B. K. Mishra 2. "A Study on Porting Bluetooth Protocol Stack to an 8-bit Microcontroller" by S. M. Lim ...
thebs.c
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