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Generate PWM pulse using C280x processor

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Asim Dey
Asim Dey on 7 Apr 2016
Commented: Asim Dey on 26 Dec 2017
Hii,
Board:- TMS320F2808
Any can help me to generate a DC-PWM pulse through Digital Oscilloscope. I know the basic register configuration of required block, but how they are connect each other, is a problem to me???
As my point of view the required Simulink blocks are: [C280x ADC], [C280x ePWM] & [C280x GPIO Digital Output]. But how they are connect each other? [GPIO DO] simulink block shows a input port that outside signal entering to his block and [ePWM] simulink block not shows any output port that fed signal to any other block.

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cagla uzun
cagla uzun on 26 Dec 2017
how can i simulate pwm signals in matlab?

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Accepted Answer

Brian McKay
Brian McKay on 12 Apr 2016
Hi Asim,
For the C280x, you select the PWM channel in the block dialog (such as ePWM1). The PWM channel is automatically translated to an output pin on the device (which may vary depending on the device). You don't need the GPIO DO block.
Looking at the DIMM pinout for F2808, EPWM1A = GPIO-00 = pin 23, and EPWM1B = GPIO-01 = pin 73. So selecting ePWM1 will use GPIO-00 and GPIO-01 channels automatically.

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Asim Dey
Asim Dey on 26 Dec 2017
Need Windows system configuration and CCS to matlab files path setting.
Youtube video is available to resolve this problem.

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