KoT

Problem with interrupt controller S12XDP

Discussion created by KoT on Sep 29, 2008
Latest reply on Oct 3, 2008 by kef
Hello, I wish to apologise for my English at once................... Has faced the following problem, I program MC9S12XDP512, and I can not understand as to customise priorities of interruptions....... Has written the program where priorities established in register INT_CFDATA for each interruption accordingly, but at occurrence of the enclosed interruption, interruption which interrupts does not come to the end. From the description I have understood that by default in register INT_CFDATA содержиться 0x01, and interrupt priorities are arranged according to layout of interrupt vectors in memory. To change the interrupt priority it is necessary to change contents of register INT_CFDATA. As it is written that it is possible to change priority by means of register INT_XGPRIO how it occurs absolutely not clearly..................... Prompt how to be, from that documentation that for me I can not eat that to understand.......(((((((((

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