B&R ECA162-01數(shù)字輸出模塊
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品牌：B&R
型號說明：B&R ECA162-01數(shù)字輸出模塊
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B&R ECA162-01使用的異常矢量調(diào)試器使用的異常向量如下所示。這些向量必須位于目標程序向量表中指定的偏移量處，以便相關(guān)的調(diào)試器工具（斷點和跟蹤模式）運行。注意：B&R ECA162-011。這取決于MC2芯片中向量基寄存器（VBR）的設(shè)置。2.這取決于VMEchip2中向量基寄存器（VBR）的設(shè)置。當(dāng)調(diào)試器處理表4-2所示的一個異常時，目標堆棧指針向左指向創(chuàng)建的異常堆棧幀的底部；也就是說，它反映了發(fā)生異常之前的系統(tǒng)堆棧指針值。這樣，調(diào)試器工具的操作（通過異常）對用戶是透明的。請注意，即使發(fā)生了跟蹤異常，目標堆棧指針寄存器（A7）的值也沒有改變。您的程序可以使用B&R ECA162-01提供的異常向量表，也可以創(chuàng)建自己的單獨異常向量表。以下兩節(jié)詳細介紹了這兩種方法。
Exception Vectors Used by B&R ECA162-01The exception vectors used by the debugger are listed below. These vectors must reside at the specified offsets in the target program’s vector table for the associated debugger facilities (breakpoints and trace mode) to operate.NOTES: 1. This depends on what the Vector Base Register (VBR) is set to in the MC2 chip.B&R ECA162-012. This depends on what the Vector Base Register (VBR) is set to in the VMEchip2.When the debugger handles one of the exceptions shown in Table 4-2, the target stack pointer is left pointing past the bottom of the exception stack frame created; that is, it reflects the system stack pointer values just before the exception occurred. In this way, the operation of the debugger facility (through an exception) is transparent to users.Notice that the value of the target stack pointer register (A7) has not changed even though a trace exception has taken place. Your program may either use the exception vector table provided by 1B&R ECA162-01 or it may create a separate exception vector table of its own. The two following sections detail these two methods.
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