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???
05/27/02 01:32
Read: 572 times


 
#23470 - RE: compile a simple sample program part
Phillip,

First off, let me say I appreciate your help and patience with an 8051 newbie. :-)

I am using a 89c420 with an 11.0592Mhz crystal. I tried the second program you wrote, and received the same results. Let me go into some more depth with the problem.

When I apply power, both LEDs light up, but one is twice as bright as the other. When I open my communication port with the loader420 program, both LEDs dim to the same brightness. When I invoke the loader (which calls up the DS89C420 LOADER VERSION 1.0 COPYRIGHT (C) 2000 DALLAS SEMICONDUCTOR
>) message, one LED flashes bright then goes off.

Once I program it with any program, one LED lights up completely, and other other one remains off. There is no flashing.

I thought maybe I fried my chip, so as a double checking precaution, I used a second chip with the same results.

Very strange.

List of 19 messages in thread
TopicAuthorDate
compile a simple sample program part 2      Jeff Corr      05/24/02 17:06      
RE: compile a simple sample program part 2      Erik Malund      05/24/02 17:48      
RE: compile a simple sample program part 2      Phillip M Gallo      05/24/02 18:04      
RE: compile a simple sample program part 2      Jeff Corr      05/24/02 22:35      
RE: compile a simple sample program part 2      Jeff Corr      05/24/02 22:36      
RE: compile a simple sample program part      Steve M. Taylor      05/25/02 00:53      
RE: compile a simple sample program part      Jeff Corr      05/25/02 01:18      
RE: compile a simple sample program part 2      Peter Dannegger      05/25/02 04:22      
RE: compile a simple sample program part 2      Jeff Corr      05/25/02 20:25      
RE: compile a simple sample program part 2      Jeff Corr      05/25/02 20:30      
RE: compile a simple sample program part 2      Phillip M Gallo      05/26/02 00:11      
RE: compile a simple sample program part 2      Phillip M Gallo      05/26/02 00:19      
RE: compile a simple sample program part      Steve M. Taylor      05/26/02 12:56      
RE: compile a simple sample program part      Peter Dannegger      05/27/02 00:25      
RE: compile a simple sample program part      Jeff Corr      05/27/02 01:32      
RE: compile a simple sample program part      Chris Brooks      05/27/02 02:43      
RE: compile a simple sample program part 2      Andy Neil      05/27/02 13:38      
RE: compile a simple sample program part 2      Alexz Haages      05/28/02 13:28      
RE: compile a simple sample program part      Raghavendra Raghav      09/20/02 23:56      

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