MATLAB: How does the TI C2000 ePWM block work

blockc2000Embedded Coderepwmti

I am presently attempting to generate ePWM pulses for a model that will be deployed onto a TI C2000 board.

I noticed that the ePWM block seems to be designed for this purpose, but I am having trouble understanding how to use it.

Would you be able to explain how this block works?

Best Answer

Essentially, each ePWM block configures how a particular ePWM module on the F28379D board fires the ePWM signals.

Under Model Configuration Parameters -> Hardware Implementation -> Target hardware resources -> ePWM, you are able to specify which GPIO pin each PWM signal maps to.

I have attached an example of how this block would work, along with an image that provides a high-level overview of the configuration process.

Below is a link with more information about the capabilities of the ePWM block:

https://www.mathworks.com/help/supportpkg/texasinstrumentsc2000/ref/model-configuration-parameters-for-texas-instruments-c2000-processors.html?s_tid=srchtitle

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MATLAB: MATLAB R2014b support TI C2000 Launchpad Delfino F28377S

Hi,

F28377S is supported in R2015b onwards. In 15b, basic code generation support and the following blocks are supported: PWM, ADC, GPIO, Hardware Interrupt. PIL and External mode also supported.

In R2016a, Serial (SCI), and CAN blocks are supported.

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MATLAB: How to generate code for TC2000 in order to output pulses on a GPIO(General Purpose Input Output) port using ePWM (Enhanced Pulse Width Modulator) interrupts

The ability to generate code for TC2000 in order to output pulses on a GPIO port using ePWM interrupts is available in Target Support Package TC2 3.2 (R2009a).

The following steps have been implemented in the attached example to use the "ePWM" block to output pulses on the GPIO port on the board.

1. Configure the "ePWM" block to produce interrupts.

2. Configure the hardware interrupt block to call function call subsystem on PWM interrupt.

3. Configure the sub-system to output the pulses on the GPIO port.

For more information on the "ePWM" block, refer to the documentation link below.

 <http://www.mathworks.com/access/helpdesk/help/toolbox/targetsupport/tic2000/c280xc28x3xepwm.html>

Best Answer

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