GE燃机 IS215UCVDH5A工业自动化卡件
M68000固件概述基于M68000的（68K）系列板级和系统级产品的固件有一个通用的enealhttp://www.mcg.mot.com/literature3-3 3面向长字的MC68040存储器总线体系结构。可执行代码在每次通电或重置固件条目时进行校验和，并测试结果（包括存储设备中包含的预先计算的校验和）是否为预期的零。因此，除非采取重新校验和预防措施，否则警告用户不要修改存储设备。注：订购的MVME162FX控制器型号不带VMEbus接口，但随附闪存空白（工厂使用VMEbus对闪存进行调试代码编程）。要使用162Bug包，请确保跳线头J22配置为选择EPROM内存映射。如果随后希望从闪存运行调试器，则必须首先使用PFLASH命令初始化闪存，然后重新配置J22。有关更多信息，请参阅下面的步骤5。3-4计算机组文献中心网站调试器一般信息3安装和启动按照以下步骤使用MVME162FX控制器操作162Bug。162Bug出厂时安装在MVME162FX的闪存中，没有VMEbus的情况除外！小心在通电时插入或移除模块可能会损坏模块组件。1.关闭所有设备电源。请参阅第2章“硬件准备”一节，并根据特定应用的需要安装/拆除集管上的跳线。收割台J22上的跳线影响162Bug操作，如下所示。默认情况下，所有八个跳线都安装在引脚1-2、3-4、5-6、7-8、9-10、11-12、13-14和15-16之间。没有VMEbus接口的型号在引脚9-10之间没有跳线。这些可读跳线可以作为存储器控制器（MC2芯片）ASIC上的寄存器（$FFF4202D）读取。当跳线断开时，位值读取为1，当跳线接通时，位读取为0。此跳线块（标头J22）包含8位。有关MC2芯片的更多信息，请参阅《MVME162FX嵌入式控制器程序员参考指南》。MVME162Bug保留/定义四个低阶位（GPI3至GPI0）。以下是调试器保留/定义的位的描述：Bit J22 Pins description Bit#0（GPI0）15-16当设置为1（高）时，指示调试器将本地静态RAM用于其工作页（即变量、堆栈、矢量表等）。安装和启动http://www.mcg.mot.com/literature3-5 3注意，当MVME162FX控制器冷复位时，162Bug将在板模式下运行。使用环境（ENV）或菜单命令可以使162Bug在系统模式下运行。有关更多信息，请参阅第5章。2.通过在针脚1和针脚2之间安装/拆卸跳线来配置收割台J1。安装/拆除跳线可启用/禁用MVME162FX的系统控制器功能。在收割台J1的针脚1和针脚2之间安装/拆卸跳线可选择“自动”系统控制器功能。位#1（GPI1）13-14设置为1（高）时，指示调试器使用Flash或PROM中的默认设置/操作参数，而不是NVRAM中的用户设置/操作。
General Information Overview of M68000 Firmware The firmware for the M68000-based (68K) series of board and system level products has a common genealhttp://www.mcg.mot.com/literature 3-3 3 longword-oriented MC68040 memory bus architecture. The executable code is checksummed at every power-on or reset firmware entry, and the result (which includes a pre-calculated checksum contained in the memory devices), is tested for an expected zero. Thus, users are cautioned against modification of the memory devices unless re-checksum precautions are taken. Note MVME162FX controller models ordered without the VMEbus interface are shipped with flash memory blank (the factory uses the VMEbus to program the flash memory with debugger code). To use the 162Bug package, be sure that jumper header J22 is configured to select the EPROM memory map. If you subsequently wish to run the debugger from Flash memory, you must first initialize Flash memory with the PFLASH command, then reconfigure J22. Refer to Step 5 below for additional information. 3-4 Computer Group Literature Center Web Site Debugger General Information 3 Installation and Startup Follow the steps below to operate 162Bug with the MVME162FX controller. 162Bug is factory-installed in the flash memory of the MVME162FX, except in the no-VMEbus case. ! Caution Inserting or removing modules while power is applied could damage module components. 1. Turn all equipment power OFF. Refer to the Hardware Preparation section in Chapter 2 and install/remove jumpers on headers as required for your particular application. Jumpers on header J22 affect 162Bug operation as listed below. The default condition is with all eight jumpers installed, between pins 1- 2, 3-4, 5-6, 7-8, 9-10, 11-12, 13-14, and 15-16. Models with no VMEbus interface have no jumper between pins 9-10. These readable jumpers can be read as a register (at $FFF4202D) on the Memory Controller (MC2 chip) ASIC. The bit values are read as a one when the jumper is off, and as a zero when the jumper is on. This jumper block (header J22) contains eight bits. Refer also to the MVME162FX Embedded Controller Programmer’s Reference Guide for additional information on the MC2 chip. The MVME162Bug reserves/defines the four lower order bits (GPI3 to GPI0). The following is the description for the bits reserved/defined by the debugger: Bit J22 Pins Description Bit #0 (GPI0) 15-16 When set to 1 (high), instructs the debugger to use local Static RAM for its work page (i.e., variables, stack, vector tables, etc.). Installation and Startup http://www.mcg.mot.com/literature 3-5 3 Note that when the MVME162FX controller comes up in a cold reset, 162Bug runs in Board Mode. Using the Environment (ENV) or MENU commands can make 162Bug run in System Mode. Refer to Chapter 5 for additional information. 2. Configure header J1 by installing/removing a jumper between pins 1 and 2. A jumper installed/removed enables/disables the system controller function of the MVME162FX. Installing/removing a jumper between pins 1 and 2 of header J1 selects the “automatic” system controller function. Bit #1 (GPI1) 13-14 When set to 1 (high), instructs the debugger to use the default setup/operation parameters in Flash or PROM versus the user setup/operation parameters in NVRAM.
