STM32F1在线编程（In-Application Programming, 简称IAP）是一种允许程序在运行时更新其闪存中的代码的技术，极大地提升了开发的灵活性和设备的可升级性。STM32F103系列是意法半导体（STMicroelectronics）生产的一款基于ARM Cortex-M3内核的微控制器，广泛应用在各种嵌入式系统中。在这个主题中，我们将探讨如何通过串口实现STM32F103的IAP更新，并结合Ymodem协议进行固件升级。 了解STM32的IAP机制。STM32的闪存分为两个区域：应用程序区和系统存储区。IAP程序通常位于系统存储区，负责接收并验证通过串口发送的新固件数据，然后将其写入应用程序区。这样，在不借助外部编程器的情况下，就能实现固件的远程升级。 Ymodem是一种在串行通信中传输文件的协议，它比早期的Xmodem协议更可靠，支持128KB的块大小，提高了传输效率。在STM32的串口IAP过程中，Ymodem协议用于将新的固件文件分块传输到微控制器，确保在数据传输过程中即使有错误也能进行重传，保证数据的完整性。 实现STM32F103串口IAP + Ymodem升级的步骤大致如下： 1. **编写IAP Bootloader**：这是整个流程的基础，它需要包含接收和验证新固件、擦除和写入闪存等函数。Bootloader需要在上电或复位后自动运行，检查是否需要执行IAP操作。 2. **实现Ymodem接收器**：在Bootloader中集成Ymodem协议的解析代码，用于接收来自串口的分块数据。这包括接收校验和计算、错误检测与重传请求等。 3. **设置串口通信**：配置STM32的UART接口，设定波特率、数据位、停止位和奇偶校验等参数，以适应Ymodem协议的需求。 4. **固件传输**：在PC端使用支持Ymodem协议的软件（如PuTTY、Termite等），将新的固件文件通过串口发送到STM32。 5. **固件验证与写入**：Bootloader接收到完整的文件后，会进行校验以确认数据的完整性，然后擦除目标地址的旧固件，最后将新固件写入闪存。 6. **跳转至新固件**：验证无误后，Bootloader会跳转到新固件的入口点，执行新版本的程序。 在提供的压缩包文件中，"IAP Bootloader V1.0.rar"很可能包含了实现上述功能的Bootloader源码，而"TEST_LED.rar"可能是一个简单的测试固件，用于验证IAP过程是否成功。开发者需要对这些源码进行编译、调试，以确保在实际硬件上正确运行。 STM32F103串口IAP结合Ymodem协议的升级方式，使得开发者能够便捷地远程更新设备固件，增强了产品维护和更新的便利性，同时也降低了售后成本。在实际应用中，需要注意确保传输过程的安全性，防止未经授权的固件修改。

适应arm_v7a 32bit编译的fio-3.41,使用方法： 推入设备：adb push [FIO FILE PATH] /data/local/tmp，更改权限：adb shell chmod +x /data/local/tmp/fio 【flash顺序读测试】adb shell "./data/local/tmp/fio --name=seq_read --rw=read --bs=128k --size=512M --direct=1 --ioengine=sync --numjobs=1 --runtime=60 --time_based --filename=./testfile_seq_read --group_reporting" 【flash顺序写测试】adb shell "./data/local/tmp/fio --name=seq_write --rw=write --bs=128k --size=512M --direct=1 --ioengine=sync --numjobs=1 --runtime=60 --time_based --filename=./testfile_seq_write --group_reporting" 【flash 4K随机读测试】adb shell "./data/local/tmp/fio --name=rand_read --rw=randread --bs=4k --size=256M --direct=1 --ioengine=sync --numjobs=4 --iodepth=16 --runtime=60 --time_based --filename=./testfile_rand_read --group_reporting" 【flash 4K随机写测试】字数限制，参考上面

### Cortex M3技术手册知识点概览 #### 一、概述 **Cortex-M3处理器**是一种专门为嵌入式系统设计的高性能微控制器内核。它采用ARM架构，并针对实时性能进行了优化。 - **处理器组件**：包括核心处理器、中断控制器（NVIC）、总线矩阵、闪存保护缓冲区（FPB）、数据观察窗口（DWT）、ITM、存储器保护单元（MPU）、嵌入式跟踪宏单元（ETM）、跟踪端口接口单元（TPIU）及调试端口（SW/JTAG-DP）等。 - **可配置选项**：如中断处理、MPU设置、ETM配置等，可以根据具体的应用需求进行调整。 - **指令集**：Cortex-M3支持Thumb-2指令集，这是一种高效、紧凑的指令集，特别适合嵌入式应用。 #### 二、编程模型 **编程模型**涵盖了处理器的工作模式、状态、寄存器结构等内容。 - **工作模式**：主要包括用户模式、系统模式、管理模式等，每种模式都有其特定的功能和权限。 - **寄存器**：分为通用寄存器和特殊寄存器（如xPSR），这些寄存器用于存储数据、状态标志等信息。 - **数据类型**：支持基本的数据类型，如整型、浮点型等。 - **存储器格式**：包括大端格式和小端格式两种，根据实际情况选择合适的格式。 #### 三、系统控制 **系统控制**部分主要介绍如何通过寄存器来控制处理器的行为。 - **寄存器汇总**：包括中断控制器的寄存器、内核调试寄存器、系统调试寄存器等。 - **调试接口**：提供调试接口的端口寄存器，用于实现JTAG调试和串行线调试。 - **存储器保护**：介绍存储器保护单元的寄存器，用于设置内存访问权限。 #### 四、存储器映射 **存储器映射**是将物理内存空间映射到处理器地址空间的过程。 - **Bit-banding**：一种特殊的内存映射技术，允许对内存中的单个比特进行独立操作。 - **ROM存储器表**：定义了程序和数据在ROM中的存放位置。 #### 五、异常处理 **异常处理**是处理器响应错误或特殊情况的重要机制。 - **异常类型**：包括复位、未定义指令、预取中止等。 - **异常优先级**：通过设置不同的优先级，可以确保高优先级的异常能够打断低优先级的异常。 - **异常退出**：描述了如何从异常处理程序中返回到正常的程序执行流程。 #### 六、时钟与复位 **时钟与复位**对于确保处理器稳定运行至关重要。 - **Cortex-M3时钟**：介绍了处理器内部的时钟源及其配置方法。 - **复位方式**：包括上电复位、系统复位、JTAG-DP复位等，每种复位方式有不同的触发条件和效果。 #### 七、电源管理 **电源管理**是延长设备电池寿命的关键。 - **电源管理概述**：概述了Cortex-M3处理器的电源管理策略。 - **系统电源管理**：介绍了SLEEPING和SLEEPDEEP两种节能模式的具体操作。 #### 八、嵌套向量中断控制器（NVIC） **嵌套向量中断控制器**负责中断的管理。 - **NVIC编程器模型**：包括NVIC寄存器映射及其功能描述。 - **电平中断与脉冲中断**：两种不同类型的中断触发方式及其应用场景。 #### 九、存储器保护单元（MPU） **存储器保护单元**用于实现高级别的存储器访问控制。 - **MPU编程器模型**：介绍MPU寄存器的功能及使用方法。 - **MPU访问权限**：定义不同主体对内存区域的访问权限。 - **MPU异常中止**：当违反了访问规则时，MPU会引发异常。 #### 十、调试 **调试**是开发过程中不可或缺的一环。 - **内核调试**：提供了停止模式调试的方法，便于开发者检查处理器的状态。 - **系统调试**：支持Flash修补和断点等功能，帮助开发者定位问题。 - **调试端口**：包括JTAG调试端口和串行线调试端口，为外部调试工具提供接入点。 以上内容仅为Cortex M3技术手册的部分知识点概括，更多详细信息还需查阅手册原文。通过对这些关键概念的理解，开发者可以更好地掌握Cortex M3处理器的工作原理和技术细节，从而高效地开发出高质量的嵌入式系统应用。

随着信息技术的快速发展，数据存储和处理需求日益增长，Redis作为一种广泛使用的开源高性能键值对数据库，因其出色的速度和灵活性而备受青睐。Redis不仅提供数据的存储服务，还支持多种数据结构，如字符串、列表、集合、有序集合、散列、位图、超日志和地理空间索引等。这些特性使得Redis不仅可以作为数据库使用，还能作为缓存、消息中间件等。 在讨论Redis时，我们不得不提及其架构的简洁性和高效性。Redis采用内存存储，这意味着它具有极高的读写速度，但同时也带来了数据持久化的挑战。为了避免数据丢失，Redis提供了多种持久化选项，包括RDB快照和AOF日志记录。RDB是一种在指定时间间隔内将内存中的数据集快照写入磁盘的策略，而AOF则是记录每一个写操作命令，然后在服务启动时重新执行这些命令以恢复数据。 然而，即便像Redis这样的优秀系统也面临着安全漏洞的问题。最近曝光的CVE-2024-31449漏洞就是一例，该漏洞影响Redis的Lua脚本功能，允许攻击者利用缓冲区溢出进行攻击。因此，Redis的维护者和用户都必须重视这一问题，并及时更新到最新版本，以保证系统的安全性和稳定性。最新的Redis 7.4.1版本修补了该漏洞，因此用户需要尽快升级。 在此次提供的资源中，包含了针对ARM架构的Redis 7.4.1编译版本，文件名为“redis-7.4.1-aarch64”。ARM架构因其低功耗和高效能的特点，在移动设备和嵌入式系统领域得到了广泛应用。随着物联网的发展，ARM架构的设备越来越多地需要高效的数据处理能力，这也是Redis ARM版本受到欢迎的原因之一。针对特定硬件平台的预编译版本可以避免用户自行编译可能遇到的问题，节约时间和精力，使得部署更加简便快捷。 为了确保Redis的高效运行，用户除了选择正确的架构和版本外，还需要对其进行适当的配置。这包括内存管理、持久化策略的选择、复制和集群设置等。此外，对Redis的监控和维护也是必不可少的，如通过实时监控工具观察系统状态，定期进行性能调优等。这些操作能够帮助用户最大限度地发挥Redis的潜力，确保应用的流畅运行。 Redis作为一种高效的数据库解决方案，在处理大规模数据集方面表现出色。但为了保障系统的稳定性和安全性，用户必须定期进行升级和维护。对于ARM架构的设备，获取适当的预编译版本能够简化部署过程，降低使用门槛，加速开发和应用进程。作为开发者和系统管理员，了解并掌握Redis的相关知识，不断学习和适应其更新变化，是保证业务连续性和数据安全的关键。

离线安装QT； 统信uos系统，arm64架构，安装QT； 提供离线 .deb 包安装； 解压密码：cpp_learners 安装命令：sudo dpkg -i *.deb 如果输入命令安装失败，则需要设置系统允许外部程序允许； 1.在系统菜单栏搜索“安全中心”，安全工具 - 应用安全 - 允许任意应用； 2.再次重新运行安装命令，即可成功安装！ 注意： 仅适配统信uos系统版本：1070 本人使用的电脑信息： 型号 擎云 L540 系统 统信桌⾯操作系统V20 显卡 国产芯⽚核显 处理器(CPU) 华为-麒麟9006C/8

STM32F105是基于ARM Cortex-M3内核的微控制器，由意法半导体（STMicroelectronics）生产，广泛应用于嵌入式系统设计。这个裸机代码架构的项目例程代表了一种高效、模块化的编程实践，是单片机开发人员提升技能和理解系统级设计的宝贵资源。 STM32F105系列的特点在于其强大的处理能力，Cortex-M3内核运行频率高达72MHz，具备浮点运算单元，适合处理复杂算法。此外，它内置丰富的外设接口，如GPIO（通用输入输出）、SPI、I2C、UART、ADC、DAC、定时器等，满足多样化的需求。 裸机代码架构，即不依赖操作系统，直接控制硬件资源的编程方式。这种架构强调程序的直接性和实时性，适用于对响应速度要求高的应用。在裸机开发中，开发者需要自己管理内存、中断、任务调度等，这要求开发者有深厚的底层硬件知识和扎实的编程基础。 项目例程中的模块化设计是关键，它将单片机的功能划分为独立的模块，每个模块负责特定的任务，如电源管理、时钟配置、通信协议栈等。这种设计易于维护、扩展和复用，降低代码复杂性，提高软件质量。例如，GPIO模块可能包括初始化、读写操作等函数；串口模块可能包含接收发送函数，以及错误处理机制。 在STM32F105的开发中，通常会使用HAL（Hardware Abstraction Layer，硬件抽象层）库或LL（Low-Layer，低层）库。HAL库提供了一致的API接口，简化了不同系列芯片的移植工作，而LL库则更接近底层，效率更高，适合对性能有极致要求的场景。 单片机开发工程师可以从这个项目例程中学习到如何有效地利用中断服务例程来处理事件，如何进行异常处理，以及如何实现时序控制。同时，通过分析例程中的错误处理机制，可以了解如何增强程序的稳定性和可靠性。 此外，嵌入式硬件的优化也是重要一环，例如电源管理、功耗控制等。开发者需要了解不同的工作模式，如待机、休眠和停止模式，以便在满足功能需求的同时，尽可能地降低功耗。 STM32F105裸机代码架构项目为单片机开发提供了实战参考，涵盖了从硬件配置到软件设计的多个层面，对于提升工程师的技能和深化对嵌入式系统的理解大有裨益。通过深入研究这些例程，开发者不仅能掌握STM32F105的具体应用，还能培养出良好的系统设计思维和代码组织习惯。

2024年7月1日，openssh 9.8版本发布，修复CVE-2024-6387安全漏洞。 适用于centos 7 redhat 7 系列操作系统的arm架构CPU 二进制rpm包。 内含ssh-copy-id命令，显示openssl版本信息，基于开源项目制作。

用于LPC2000系列芯片的程序烧录 /*Hints on Using the LPC2000 Flash Utility This document can be considered as a supplement to the already existing Application note AN10302 “Using the Philips LPC2000 Flash Utility”, which is provided in the same zip file. The Application note covers the following topics: 1. LPC2000 ISP Overview 2. ISP Mode Entry- Manual and RTS/DTR control circuit 3. Flash and RAM buffer operations 4. Keil MCB2100 board and IAR/Philips 210x KickStart board. Topics discussed in this guide are as follows: 1. Using the “Compare Flash” ISP command. 2. Flashless devices- LPC2220, LPC2210, LPC2290 Using the Compare Flash: The below steps need not be carried out if the checksum is part of the code before it is compiled. This would mean that checksum would be part of the hex file been created. For more detailed information on the checksum calculation please refer to the “Flash Memory System and Programming” chapter in the respective device User Manual. In this case, the hex file can be directly loaded using the “Upload to Flash” button and then the “ Compare Flash” button can be used to compare the Flash contents with the hex file. This direct operation is possible since the signature (or checksum) is part of the hex file already. The below steps need to be carried out if the checksum calculation is not part of the code been compiled. In this case, the checksum calculation has to be done by the utility. Step1: Open the “Buffer” menu and browse to “Flash Buffer operations”. When this menu item is clicked the following window will pop-up. Step2: Now click on the “Load Hex file” button. Please browse to the hex file, which needs to be downloaded into Flash. In this case, Blinky.hex would be loaded. Step3: Select the hex file and press “Open”. This would load the hex file into the buffer window as shown below. Please take a note of location 0x14. In this case, the checksum is not computed before the code is compiled. Step4: Now click on the “Vector Calc” button, which would calculate the checksum and load it at the reserved memory location, 0x14. As shown below this location gets updated. The updated value at 0x14 is as shown below Step5: Since this hex file is modified with the checksum, it needs to be saved back into the same location from where it was loaded. Clicking on the “Save Hex File” button would complete this step. When this is done, a message as shown below should appear. Click “Yes”. Step6: Download the hex file into Flash by clicking on the “Download Flash” button. The progress window should show the progress of the Flash download. Step7: The Flash Buffer Operations window can now be closed. Now, please click here and browse to “Blinky.hex” again. Now click the “Compare Flash” button and it should be a success. Flashless devices- LPC2220, LP2210, LPC2290: Since the LPC2220/2210/2290 does not have on-chip Flash, the ISP utility does not have these devices in its listing of supported Flash devices. However, the utility can still be used to issue ISP commands that would access the on-chip SRAM (using RAM Buffer Operations Window) and bootloader specific ISP commands like Read Device ID. For instance, when the above button is clicked, the ISP utility would complain saying that the “Type is not supported” which basically means that this device is not present in the listing of Flash devices. This error message can be ignored. After “OK” is pressed in the above message, the ISP commands will still be executed and the Part ID and the Boot loader ID will be displayed.*/ /*AN10302 Using the Philips LPC2000 Flash utility with the Keil MCB2100 and IAR LPC210x Kickstart evaluation boards Rev. 03 — 10 June 2004 Application note Document information Info Content Keywords LPC2000, Flash utility, Keil MCB2100, IAR LPC210x Abstract Application information for the Philips LPC2000 Flash utility with the Keil MCB2100 and IAR LPC210x Kickstart evaluation boards 9397 750 13354 © Koninklijke Philips Electronics N.V. 2004. All rights reserved. Application note Rev. 03 — 10 June 2004 2 of 14 Philips Semiconductors AN10302 Using the Philips LPC2000 Flash utility Contact information For additional information, please visit: http://www.semiconductors.philips.com For sales office addresses, please send an email to: sales.addresses@www.semiconductors.philips.com Revision history Rev Date Description 3 10 June 2004 Third version (9397 750 13354). Modifications: • Updated Table 2. • Updated Section 4.2.1. 2 12 May 2004 Second version (9397 750 13287). 1 30 April 2004 Initial version (9397 750 13231). 9397 750 13354 © Koninklijke Philips Electronics N.V. 2004. All rights reserved. Application note Rev. 03 — 10 June 2004 3 of 14 Philips Semiconductors AN10302 Using the Philips LPC2000 Flash utility 1. Introduction In-System programming (ISP) is a method of programming and erasing the on-chip flash or RAM memory using the boot loader software and a serial port. The part may reside in the end-user system. The flash boot loader provides an In-System Programming interface for programming the on-chip flash or RAM memory. This boot loader is located in the upper 8 kB of flash memory, it can be read but not written to or erased. 2. LPC2000 ISP overview The flash boot loader code is executed every time the part is powered on or reset. The loader can execute the ISP command handler or pass execution to the user application code. A LOW level, after reset, at the P0.14 pin is considered as the external hardware request to start the ISP command handler. The boot loader samples this pin during reset. Assuming that proper signal is present on X1 pin when the rising edge on RST pin is generated, it may take up to 3 ms before P0.14 is sampled and the decision on whether to continue with user code or ISP handler is made. If P0.14 is sampled LOW and the watchdog overflow flag is set, the external hardware request to start the ISP command handler is ignored. If there is no request for the ISP command handler execution (P0.14 is sampled HIGH after reset), a search is made for a valid user program. If a valid user program is found then the execution control is transferred to it. If a valid user program is not found, the auto-baud routine is invoked. Pin P0.14 is used as hardware request for ISP requires special attention. Since P0.14 is in high impedance mode after reset, it is important that the user provides external hardware (a pull-up resistor or other device) to put the pin in a defined state. Otherwise unintended entry into ISP mode may occur. Figure 1 shows the boot sequence of the LPC210x devices. 9397 750 13354 © Koninklijke Philips Electronics N.V. 2004. All rights reserved. Application note Rev. 03 — 10 June 2004 4 of 14 Philips Semiconductors AN10302 Using the Philips LPC2000 Flash utility Fig 1. Boot process flowchart. 9397 750 13354 © Koninklijke Philips Electronics N.V. 2004. All rights reserved. Application note Rev. 03 — 10 June 2004 5 of 14 Philips Semiconductors AN10302 Using the Philips LPC2000 Flash utility 3. Details of the Philips LPC2000 Flash utility This flash utility is available for free download from the Philips website. This software, in combination with the hardware described below, allows for hands-off erasure, uploading, and execution of code. The Philips LPC2000 Flash utility utilizes two, otherwise unused, signals (RTS and DTR) of the PC serial port to control the microcontroller reset and P0.14 pins. The port pin P0.14, if LOW during reset, puts the microcontroller into In System Programming (ISP) mode; this pin has the alternate functions of external interrupt one and general purpose I/O (GPIO). Some details on the associated circuitry will help in understanding how this works. 3.1 Manual entry into ISP mode With jumper J1 removed and jumper J2 in place ISP mode will be entered manually by holding S2 while pressing and releasing S1 (reset). This can become cumbersome and so it is advantageous to use RTS/DTR control of these signals. 3.2 ISP mode entry using DTR/RTS With jumper J1 inserted and jumper J2 removed the reset and P0.14 signals may be controlled by the previously un-used RTS/DTR signals of the PC serial port. In this application both these signals are active HIGH. When RTS is asserted Q2 is turned on and the microcontroller reset is pulled LOW. While the micro is held in reset, DTR is asserted and P0.14 is held LOW. RTS is then brought LOW and so Q2 is turned off. The 10K pull-up resistor releases the RESET signal by pulling it HIGH. The microcontroller is now running in ISP mode. This sequence of ISP mode entry is performed for every operation offered by the Philips LPC2000 Flash Utility. Fig 2. The RTS/DTR control - an example circuit. 10K DTR S2_INT1_ISP D3 1 2 Q2 3 2 1 RST 22K S1_reset 33K D4 1 2 D1 1 2 P2 DSUB 9-R 5 9 4 8 3 7 2 6 1 5 9 4 8 3 7 2 6 1 100n Note: All signals to P2 except DTR and RTS have been omitted for clarity. 33K J2 12 100n RTS Q1 3 2 1 P0.14 22K Vcc J1 12 9397 750 13354 © Koninklijke Philips Electronics N.V. 2004. All rights reserved. Application note Rev. 03 — 10 June 2004 6 of 14 Philips Semiconductors AN10302 Using the Philips LPC2000 Flash utility The main screen of the Flash Utility provides access to most if its functionality. When the “use DTR/RTS…” box (1) is checked then control of reset and P0.14 is done by the utility as described above. If this box is unchecked then ISP mode must be entered manually. If the “execute code after upload” is checked then, after code is programmed into the flash, an extra reset pulse is sent to the microcontroller to reset the part. Since, at this time, P0.14 will be HIGH, the part will execute code in flash after this reset. When the utility connects to the MCB2100 it will attempt to connect at the selected baud rate. The highest baud rate achievable will depend mostly on the frequency of the crystal. Using standard baud rate crystals (e.g. 14.7456 MHz) will increase the maximum baud rate achievable. 3.3 Flash buffer operations The flash buffer operation screen (accessible from the “buffer” pull-down menu) allows functions such as loading a HEX file, downloading from flash, uploading to flash, filling the buffer, saving the HEX file and calculation of the checksum “valid code” vector1. There is also the ability to fill the buffer with a particular value1 and program this buffer to flash. Fig 3. Flash Utility main screen. 1. The valid code vector at 0x14 is merely the two’s complement of the sum of the vector table. By assigning it this value the checksum for the entire vector table is 0x00 which indicates valid flash code. After reset the bootloader will examine this location and, if the value is correct (an indication of valid user code in flash), will execute code out of flash. If the value is not correct the bootloader will enter ISP mode. The Philips LPC2000 Flash Utility will automatically calculate and program this value during an upload to flash. Alternatively the vector calculation may be performed on the contents of flash buffer as shown in the screen-shot below. 9397 750 13354 © Koninklijke Philips Electronics N.V. 2004. All rights reserved. Application note Rev. 03 — 10 June 2004 7 of 14 Philips Semiconductors AN10302 Using the Philips LPC2000 Flash utility 3.4 RAM buffer operations Ram buffer operations (accessible from the “buffer” pull-down menu) are similar to flash buffer operations including the uploading of HEX files etc. Fig 4. Flash buffer screen. 9397 750 13354 © Koninklijke Philips Electronics N.V. 2004. All rights reserved. Application note Rev. 03 — 10 June 2004 8 of 14 Philips Semiconductors AN10302 Using the Philips LPC2000 Flash utility Fig 5. RAM buffer operations. 9397 750 13354 © Koninklijke Philips Electronics N.V. 2004. All rights reserved. Application note Rev. 03 — 10 June 2004 9 of 14 Philips Semiconductors AN10302 Using the Philips LPC2000 Flash utility 4. Hardware 4.1 Keil MCB2100 evaluation board Figure 6 shows an overview of the Keil MCB2100 evaluation board. JTAG port — Connection to JTAG emulator (e.g. Keil ULink). This is a standard JTAG port as outlined in ARM documentation. ETM (Embedded Trace Macrocell) port — Provides interface to emulators with trace capability. P3 and P4, CAN ports — These provide access to the CAN ports (On boards that feature a microcontroller with CAN interfaces). P1 and P2, UARTs — Access to UART0 and UART1. S1 reset — Microcontroller reset. S2 ISP/INT1 — This button pulls the P0.14 pin of the microcontroller LOW, providing either an external interrupt or manual entry into ISP mode. Fig 6. Keil MCB2100 evaluation board overview. 9397 750 13354 © Koninklijke Philips Electronics N.V. 2004. All rights reserved. Application note Rev. 03 — 10 June 2004 10 of 14 Philips Semiconductors AN10302 Using the Philips LPC2000 Flash utility LEDs — buffered with a 74LVC octal buffer, enabled by J6. Potentiometer — Configured as a voltage divider with its output connected to AIN0 via jumper J2. [1] These jumpers supply the voltages to the microcontroller and must be in for normal operation. [2] Remove this jumper when not using ISP. 4.1.1 Enabling ISP mode with the MCB2100 The Keil MCB2100 evaluation board was designed to utilize the RTS/DTR control of reset and P0.14 as featured in the Philips LPC2000 Flash utility. To setup the MCB2100 for ISP programming set the jumpers: J1, J3, J4, J5, J7 and J10. Connect the PC serial port to COM0 of the MCB2100 and start the LPC2000 Flash Utility. Check the “Use DTR/RTS……” box and continue. 4.2 The IAR/Philips LPC210x Kickstart card This evaluation board is populated with an LPC2106 microcontroller and features 2 serial ports, 2 user-defined buttons, 16 fully configurable LEDs, 20-pin JTAG interface connector as well as breakout headers for all pins. Table 1: Keil MCB2100 jumper functions Jumper Function J1 Configures P0.14 for DTR/RTS control of ISP (see ISP section below) J2 Potentiometer/ADC Connect J3[1] 3.3 V enable J4[1] 1.8 V enable J5 3.3 V analog voltage supply enable J6 LED enable J7 Configures P0.14 for external interrupt or manual ISP entry J8 ETM Pins Enable (Pulls TraceSync LOW) J9 JTAG Debug Pins Enable (Pulls RTCK LOW) J10[2] Configures RESET for DTR/RTS control of ISP (see ISP section below) 9397 750 13354 © Koninklijke Philips Electronics N.V. 2004. All rights reserved. Application note Rev. 03 — 10 June 2004 11 of 14 Philips Semiconductors AN10302 Using the Philips LPC2000 Flash utility JTAG port — Connection to JTAG emulator (e.g. JLink). This is a standard JTAG port as outlined in ARM documentation. ETM (Embedded Trace Macrocell) port — Provides interface to emulators with trace capability. P0 and P1, UARTs — Access to UART0 and UART1. RESET — Microcontroller reset. Interrupt0 — This button provides a source for interrupt zero. Interrupt1 — This button pulls the P0.14 pin of the microcontroller LOW, providing either an external interrupt or manual entry into ISP mode. Interrupt2 — This button provides a source for interrupt two. LED jumper block — enables/disables individual LEDs. LEDs — buffered with a LVT16244. Fig 7. IAR/Philips LPC210x Kickstart card. 9397 750 13354 © Koninklijke Philips Electronics N.V. 2004. All rights reserved. Application note Rev. 03 — 10 June 2004 12 of 14 Philips Semiconductors AN10302 Using the Philips LPC2000 Flash utility [1] P0.14 and external interrupt one share the same pin; therefore this button may also be used for manual entry into ISP mode by pressing it during a reset. [2] This jumper, when in the JTAG1 position, will cause the microcontroller to enter JTAG debug mode after reset. Therefore, when using ISP, this jumper must be removed or placed in the JTAG2 position. 4.2.1 Enabling ISP mode with the IAR/Philips Kickstart card The Kickstart Card evaluation board was designed to utilize the RTS/DTR control of reset and P0.14 as featured in the Philips LPC2000 Flash utility. To setup the Kickstart Card for ISP programming set the jumpers: JP7, JP8, JP2 and JP4. Remove jumper JP6. Connect the PC serial port to P0 (UART0) of the Kickstart Card and start the LPC2000 Flash Utility. Check the “Use DTR/RTS……” box and continue. Table 2: IAR/Philips Kickstart card jumper functions Jumper Function JP1 Enables external interrupt zero via the push-button JP2 Enables ISP and external interrupt one[1] JP3 Connects P0.9/RxD1 (UART1) to the MAX3232 JP4 Connects P0.1/RxD0 (UART0) to the MAX3232 JP5 Enables external interrupt zero via the push-button JP6 Primary/Secondary JTAG select[2] JP7 Enable DTR/RTS control of P0.14 JP8 Enable DTR/RTS control of RESET Philips Semiconductors AN10302 Using the Philips LPC2000 Flash utility 9397 750 13354 © Koninklijke Philips Electronics N.V. 2004. All rights reserved. Application note Rev. 03 — 10 June 2004 13 of 14 5. Disclaimers Life support — These products are not designed for use in life support appliances, devices, or systems where malfunction of these products can reasonably be expected to result in personal injury. Philips Semiconductors customers using or selling these products for use in such applications do so at their own risk and agree to fully indemnify Philips Semiconductors for any damages resulting from such application. Right to make changes — Philips Semiconductors reserves the right to make changes in the products - including circuits, standard cells, and/or software - described or contained herein in order to improve design and/or performance. When the product is in full production (status ‘Production’), relevant changes will be communicated via a Customer Product/Process Change Notification (CPCN). Philips Semiconductors assumes no responsibility or liability for the use of any of these products, conveys no licence or title under any patent, copyright, or mask work right to these products, and makes no representations or warranties that these products are free from patent, copyright, or mask work right infringement, unless otherwise specified. © Koninklijke Philips Electronics N.V. 2004 All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner. The information presented in this document does not form part of any quotation or contract, is believed to be accurate and reliable and may be changed without notice. No liability will be accepted by the publisher for any consequence of its use. Publication thereof does not convey nor imply any license under patent- or other industrial or intellectual property rights. Date of release: 10 June 2004 Document order number: 9397 750 13354 Published in U.S.A. Philips Semiconductors AN10302 Using the Philips LPC2000 Flash utility 6. Contents 1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 LPC2000 ISP overview . . . . . . . . . . . . . . . . . . . 3 3 Details of the Philips LPC2000 Flash utility. . . 5 3.1 Manual entry into ISP mode . . . . . . . . . . . . . . . 5 3.2 ISP mode entry using DTR/RTS. . . . . . . . . . . . 5 3.3 Flash buffer operations. . . . . . . . . . . . . . . . . . . 6 3.4 RAM buffer operations . . . . . . . . . . . . . . . . . . . 7 4 Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 4.1 Keil MCB2100 evaluation board . . . . . . . . . . . . 9 4.1.1 Enabling ISP mode with the MCB2100 . . . . . 10 4.2 The IAR/Philips LPC210x Kickstart card . . . . 10 4.2.1 Enabling ISP mode with the IAR/Philips Kickstart card . . . . . . . . . . . . . . . . . . . . . . . . . 12 5 Disclaimers. . . . . . . . . . . . . . . . . . . . . . . . . . . . 13*/

标题“openssh9.9p1-el7-aarch64.zip”透露了压缩包内包含的是针对特定系统架构和版本的操作系统软件包。这个标题指出了软件包的类型为OpenSSH，版本为9.9p1，适用于RedHat企业版Linux 7（简称为RHEL 7）以及兼容的CentOS 7的ARM架构（aarch64），并且是RPM（Red Hat Package Manager）格式的二进制文件。 描述部分提供了更详细的说明，指出该软件包是OpenSSH 9.9p1的第一个补丁版本，该版本是针对基于ARM架构的服务器和客户端系统的升级更新。它特别强调了软件包的适用范围，即CentOS 7、RedHat 7以及类似的ARM架构系统，以及软件包的制作日期，即2024年9月25日。这表明了该软件包是为了解决某些版本中存在的问题或者是引入新的功能改进。 标签“arm”，“centos7”，“openssh”是对文件内容的分类。ARM代表处理器架构，centos7代表特定的操作系统版本，而openssh则是指明了软件包的功能——提供安全的网络通信服务。 文件名称列表包含了三个RPM包文件名：openssh-clients-9.9p1-1.el7.aarch64.rpm、openssh-9.9p1-1.el7.aarch64.rpm、openssh-server-9.9p1-1.el7.aarch64.rpm。这些文件名揭示了包内具体包含的内容。第一个包是面向客户端的OpenSSH软件，包括了用户使用的各种SSH客户端工具；第二个包是核心的OpenSSH包，可能包括了SSH协议的主要守护进程和库文件；第三个包则是面向服务器端的OpenSSH软件，提供了服务器端需要运行SSH服务的各种工具和守护进程。 综合以上信息，我们可以得出，该压缩包是为了在ARM架构的CentOS 7或RHEL 7系统上提供一个完整更新的OpenSSH服务而设计的。这些包中的内容将允许系统管理员为他们的系统安装或升级安全的远程管理工具，包括密钥认证、端口转发、X11转发等功能，从而保证了系统远程访问的安全性和便捷性。此外，由于这是2024年发布的更新包，它可能包含针对之前版本的安全修复或功能增强，使得OpenSSH在ARM架构的环境中运行更加稳定和高效。 考虑到文件内容的广泛使用范围，系统管理员和IT专业人员在使用这些RPM包进行系统升级时，应确保备份相关数据和配置文件，并仔细阅读安装说明，以避免因版本不兼容或其他原因导致的系统问题。同时，由于这个更新包含了最新的安全补丁，因此对提高系统的安全性具有重要意义，特别是在当前网络安全威胁日益严峻的大环境下。

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