Author Topic: New P89V51RD2 (Reset the device into ISP mode now) Problem  (Read 11462 times)

ialtinkopru

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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

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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
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ialtinkopru

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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

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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