MATLAB EMBEDDED IDE LINK 4 - FOR USE WITH TEXAS INSTRUMENTS CODE COMPOSER STUDIO Guia do Utilizador descarregar pdf (Página 72)

C28x PWM

3-30

Symmetric. The following illustration shows the difference between the two

types of waveforms.

Use PWM#/PWM# — Check to select the PWM pairs to activate

Pulse width source — Source from which the pulse width is obtained. Select

Specify via dialog to enter the value in Pulse width or select Input port to

use a value from the input port.

Pulse width — Width of the pulse in clock cycles. The default is for the first

PWM in a pair to be triggered Active high and for the second PWM to be

triggered Active low. You can change the PWM control logic by selecting

Show

additional parameters

Asymmetric

waveform

Symmetric

waveform

Pulse width value

Resulting pulse

waveform

Resulting pulse

waveform

1 2 ... 67 68 69 70 71 72 73 74 75 76 77 ... 111 112

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MATLAB EMBEDDED IDE LINK 4 - FOR USE WITH TEXAS INSTRUMENTS CODE COMPOSER STUDIO Guia do Utilizador Página 72