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products:w7500:peripherals:pwm:deadzonegeneration

Dead-Zone generation example


(C) COPYRIGHT 2015 WIZnet

  • file : PWM/DeadZoneGeneration/readme.md
  • author : IOP Team
  • version : V1.0.0
  • date : 01-May-2015
  • brief : Description of the Dead-zone generation example.

THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE TIME. AS A RESULT, WIZnet SHALL NOT BE HELD LIABLE FOR ANY DIRECT, INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.


Example Description

This example shows how to use the PWM peripheral to run Dead-zone generation.

The PWM channel 0 frequency is set to SystemCoreClock(Hz), the Prescaler is 2 so the PWM channel 0 counter clock is 10 MHz. SystemCoreClock is set to 20 MHz.

The PWM channel 0 is set as up-count and periodic mode, and the dead-zone counter value is set as 100. The PWM output is enabled. So as a result, the output of PWM channel 1 is inverted the PWM channel 0 output.

  • note:
    • If you want to use the PWM channel 0 as dead-zone generation, the PWM channel 1 output MUST be disabled.

The PWM channel 0 output is mapped to PC_00, and inverted output is mapped to PC_01(The PWM channel 1 output).


Directory contents

  • PWM/DeadZoneGeneration/main.c (Main program)
  • PWM/DeadZoneGeneration/W7500x_it.c (Interrupt Handlers)
  • PWM/DeadZoneGeneration/W7500x_it.h (Interrupt Handlers Header file)
  • PWM/DeadZoneGeneration/W7500x_conf.h (Library Configuration file)
  • PWM/DeadZoneGeneration/MDK/W7500x_PWM_DeadZoneGeneration.uvproj (MDK Project file)
  • PWM/DeadZoneGeneration/GCC/Makefile (GCC Make file)

Hardware and Software environment

  • This example has been tested with WIZnet WIZwiki W7500 platform.
  • To select the WIZnet WIZwiki platform used to run the example.

  • WIZwiki W7500 Set-up

    • PA_00 pin generates the PWM channel 0 output signal.
    • PA_01 pin generates the inverted PWM channel 0 output signal.
    • In order to use the PWM channel 0(PA_00) to be changed from PAD_AF0 to PAD_AF2.
    • In order to use the inverted PWM channel 0(PA_01) to be changed from PAD_AF0 to PAD_AF2.

How to use it ?

In order to make the program work, you must do the following :

  • Open your preferred toolchain.
  • Rebuild all files and load your image into target memory.
  • Run the example.
  • WIZwiki W7500 where the Flash memory density ranges 128Kbytes.
  • If you have any questions, please use the forum site.
    • "http://wizwiki.net/forum/"
products/w7500/peripherals/pwm/deadzonegeneration.txt · Last modified: 2015/04/27 09:31 by justinkim