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Here's an example of what I need to do: Suppose there's a motor with a toothed wheel (so you can determine it's exact position) and a user operated pushbutton. I need to determine exactly at what motor position the operator pressed the button. I have the pulse train from the toothed wheel coming in on Timer C0, and the pushbutton coming in on Timer C1....I need to get the counter value of TC0 when the TC1 event happens. As I understand it now, each timer channel has its own counter, and the only way I've found so far is to use "ioctl(TimerCaptureC0, QT_READ_COUNTER_REG, NULL)". This obviously introduces some error, since I'm reading a rolling counter value rather than a latched value. Is there a way to make each channel read from the same counter? Is there a better way to set up the timers to capture these events? This is my first DSP project after migrating from the HC12 platform, and I'm finding that I need to think about the timers in a completely different way... |
Quad Timer question
Started by ●October 14, 2002
