B&R ECNT43-0 PLC模塊
1.產(chǎn) 品 介 紹
品牌：B&R
型號(hào)說(shuō)明：B&R ECNT43-0 PLC模塊
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2.產(chǎn) 品 詳 情 資 料：
B&R ECNT43-0 從用戶程序調(diào)用系統(tǒng)實(shí)用程序提供了一種方便的方式來(lái)進(jìn)行字符輸入/輸出和許多其他有用的操作，因此您不必將這些例程寫入目標(biāo)代碼。您可以使用矢量#15通過(guò)B&R ECNT43-0 TRAP指令之一訪問(wèn)各種162Bug例程。有關(guān)可用的各種TRAP#15實(shí)用程序以及如何從用戶程序中調(diào)用它們的詳細(xì)信息，請(qǐng)參閱Motorola 68K CISC CPU調(diào)試包用戶手冊(cè)。保存調(diào)試器操作環(huán)境本節(jié)介紹如何避免污染調(diào)試器的操作環(huán)境。162Bug使用某些MVME162FX板載資源和板外系統(tǒng)內(nèi)存來(lái)包含臨時(shí)變量和異常向量。如果您干擾了162Bug所依賴的資源，那么調(diào)試器可能不可靠或根本不起作用。B&R ECNT43-0
Calling System Utilities from User Programs A convenient way of doing character input/output and many other useful operations has been provided so that you do not have to write these routines into the target code. You can access various B&R ECNT43-0 162Bug routines via one of the MC68040 TRAP instructions, using vector #15. Refer to the Debugging Package for Motorola 68K CISC CPUs User’s Manual for details on the various TRAP #15 utilities available and how to invoke them from within a user program. Preserving the Debugger Operating Environment This section explains how to avoid contaminating the operating environment of the debugger. 162Bug uses certain of the MVME162FX onboard resources and also offboard system memory to contain temporary variables and exception vectors. If you disturb resources upon which 162Bug depends, then the debugger may function unreliably or not at all.B&R ECNT43-0
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