Author Topic: New P89V51RD2 (Reset the device into ISP mode now) Problem  (Read 3569 times)

ialtinkopru

  • Jr. Member
  • **
  • Posts: 2
    • View Profile
    • Email
New P89V51RD2 (Reset the device into ISP mode now) Problem
« on: March 23, 2014, 02:15:19 pm »
Hi friends,

I have a problem

Microcontroller for courses, P89V51RD2 did try the card.

This card is manufactured with the new 'P89V51RD2' processors do not assign a hex file. But former manufactured 'P89V51RD2' processors can throw hex file.

How can I fix this problem. I wonder if my problem, your card or Flash Magic program settings?

I would appreciate if you could help.




Andy Ayre

  • ESAcademy Staff
  • Sr. Member
  • *****
  • Posts: 2114
    • View Profile
    • Embedded Systems Academy, Inc.
    • Email
Re: New P89V51RD2 (Reset the device into ISP mode now) Problem
« Reply #1 on: March 24, 2014, 01:09:43 am »
This means the device is not sending a 'U' back when it is reset. Put a scope on the RxD and TxD lines of the microcontroller. Do you see the 'U' going in after reset? Do you see anything coming out?

Andy
Embedded Systems Academy, Inc.
support at esacademy dot com

ialtinkopru

  • Jr. Member
  • **
  • Posts: 2
    • View Profile
    • Email
Re: New P89V51RD2 (Reset the device into ISP mode now) Problem
« Reply #2 on: March 24, 2014, 01:12:31 pm »
After reset is staying that way.

@Andy Ayre

Andy Ayre

  • ESAcademy Staff
  • Sr. Member
  • *****
  • Posts: 2114
    • View Profile
    • Embedded Systems Academy, Inc.
    • Email
Re: New P89V51RD2 (Reset the device into ISP mode now) Problem
« Reply #3 on: March 24, 2014, 01:16:59 pm »
Do you see the 'U' going in after reset? Do you see anything coming out?
Embedded Systems Academy, Inc.
support at esacademy dot com