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OMAP-L138: How to check VPIF, ISR has been called?

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I use OMAP-L138 LCDK to capture the RAW data from a CMOS image sensor. VPIF interface is used. However, there is no interrupt signals generated. The first thing I want to check is whether the ISR has been called. Does anyone know how to check that? Moreover, any other possible reasons could cause there is no interrupt signals? The code and the registers values for VPIF are attached. Thanks. (Please visit the site to view this file)(Please visit the site to view this file)(Please visit the site to view this file)(Please visit the site to view this file)


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