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Discussion Groups | Freescale DSPs | DSP56807 Timer B Capture Inputs

Technical discussions about Freescale (Motorola) DSPs (including the DSP56000, DSP56300, DSP56600, 56800 DSPs).

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DSP56807 Timer B Capture Inputs - petebecher - Apr 26 19:56:00 2002

I need to find out how to get the capture inputs to Timer B working. The problem seems to be with the Quadrature Decoder Switch Matrix but I am not sure. The matrix looks like it defaults to 00 which should connect the inputs to the timer modual. I checked the DECCR register using the CW memeory display window and the matrix MODE value is 00. Is there some other setting that is needed to change or enable this? I have Timer D set up in the exact same manner and it works fine. Thanks for any assistance. Pete

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Re: DSP56807 Timer B Capture Inputs - petebecher - May 3 15:24:00 2002

Hi All, Just letting you know I figured my problem out. I was forgetting to clear the IEF (input edge flag) in the Status and Control Register to re-enable the capture. Thanks for any responses that you may have sent between the slow updates on this group. Pete