Author Topic: Parallel port resets while my system resets.  (Read 11572 times)

selvabha

  • Member
  • ***
  • Posts: 9
Parallel port resets while my system resets.
« on: March 27, 2011, 02:52:41 am »
Dear Sir,

I have connected one of the data pins of the parallel port to control a relay.

The relay goes ON and OFF while system resets.

How can i avoid this.Any solution from you will be appreciated.

Thankyou

selvabha

  • Member
  • ***
  • Posts: 9
Re: Parallel port resets while my system resets.
« Reply #1 on: March 27, 2011, 05:52:52 pm »
Dear Sir,

Also today i noted my parallel port clicks when the system shuts down.

Jan Axelson

  • Administrator
  • Frequent Contributor
  • *****
  • Posts: 3033
    • Lakeview Research
Re: Parallel port resets while my system resets.
« Reply #2 on: March 27, 2011, 10:15:44 pm »
Use a latch such as a 74HCT374 to enable the outputs and latch the data.

Jan