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Clock Net Width

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Hello. i am using AT89c51 micro controller in driving bipolar stepper motor. can someone give me idea on generating PWM clock signal to the L297???(like period, pulse width, duty cycle, etc) i have read somewhere that if have wrong clock signal, the motors will be destroyed. :shock::shock: C code is appreciated. thanQ:grin:
Are you getting errors about the constraints? Make sure the clock you use for chipscope is able to sample the signals you are giving it. You may have a timing problem. Assaf.
Hi, There are some app. notes over the search for "clock domain crossing" Replace * by t