How to get Sawtooth waveform that can be converted to HDL code
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I have tried to generate a sine pwm using sine and saw-tooth comparison method.The sine PWM block simulated perfectly in the simulink. But error message came when converted to HDL. I have used HDL workflow Adviser for the conversion from simulink to HDL. Error message is no implementation block for signal generator(sawtooth wave).
How to generate a 25KHz sawtooth waveform(-1V to +1V) that can be converted to HDL code? I would like to implement the sine pwm through FPGA board.
Any idea how it is possible? or any alternate method possible for Sine PWM generation?
Regards,
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Tim McBrayer
le 25 Mar 2013
As you have noted, the Signal Generator block is not supported by HDL Coder. I don't think that HDL Coder can directly solve your problem here. You are asking for an analog signal out of your FPGA; HDL Coder is a digital design tool. If your board has a D-A converter on it that you can drive with your FPGA, then the digital circuitry needed is basically a simple counter with the desired timing.
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