B&R ECPE84-2模擬輸入模塊
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品牌:B&R
型號(hào)說明:B&R ECPE84-2模擬輸入模塊
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2.產(chǎn) 品 詳 情 資 料:
B&R ECPE84-2如果應(yīng)用程序通過內(nèi)存管理單元(MMU)啟用轉(zhuǎn)換,并且如果應(yīng)用程序使用調(diào)試器的資源(例如,系統(tǒng)調(diào)用),則應(yīng)用程序必須創(chuàng)建必要的轉(zhuǎn)換表,以便調(diào)試器能夠訪問其各種資源。調(diào)試器支持MMU的啟用;162Bug矢量表和工作空間如第3章“內(nèi)存需求”部分所述,B&R ECPE84-2162Bug需要64KB的讀/寫內(nèi)存才能運(yùn)行。162Bug為用戶程序向量表區(qū)域保留了一個(gè)1024字節(jié)的區(qū)域,然后分配另一個(gè)1024個(gè)字節(jié)的區(qū)域并構(gòu)建一個(gè)異常向量表供調(diào)試器自己使用。接下來,162Bug為靜態(tài)變量預(yù)留空間,并將這些靜態(tài)變量初始化為預(yù)定義的默認(rèn)值。在靜態(tài)變量之后,162Bug為系統(tǒng)堆棧分配空間,然后將系統(tǒng)堆棧指針初始化到該區(qū)域的頂部。B&R ECPE84-2
If your application enables translation through the Memory Management Units (MMUs), and if your application utilizes resources of the debugger (e.g., system calls), your application must create the necessary translation tables for the debugger to have access to its various resources. The debugger honors the enabling of the MMUs; it does not disable translation.162Bug Vector Table and Workspace As described in the Memory Requirements section in Chapter 3, B&R ECPE84-2162Bug needs 64KB of read/write memory to operate. The 162Bug reserves a 1024-byte area for a user program vector table area and then allocates another 1024-byte area and builds an exception vector table for the debugger itself to use. Next, 162Bug reserves space for static variables and initializes these static variables to predefined default values. After the static variables, 162Bug allocates space for the system stack, then initializes the system stack pointer to the top of this area.B&R ECPE84-2
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