Lpc2000

bobtransformer wrote:

>--- In lpc2000@yahoogroups.com, "jstamos111" <jstamos111@...> wrote:
>  
>
>>Hey guys,
>>
>>This problem has me completely baffled.  Hopefully you can help.
>>
>>I have an LPC2106 running on a board of my own design and am using 
>>Keil tools to compile the code.  Here's my very short code:
>>
>>void main() {
>>PINSEL0 &= 0x00000000;
>>IODIR0 = 0xFFFFFFFF;
>>IOSET0 = 0xFFFFFFFF;
>>while(1);
>>}
>>
>>The problems when I run this code all IO ports turn on except P0.2, 
>>P0.3 and P0.26.  Any idea why?  I tried looking in the 
>>    
>>
>documentation 
>  
>
>>but couldn't find anything specific about these ports not working 
>>    
>>
>for 
>  
>
>>IO.  I thought maybe the problem was what I had the pins connected 
>>    
>>
>to 
>  
>
>>(a CPLD) so I made sure to put the connected CPLD pins as inputs 
>>    
>>
>and 
>  
>
>>even disconnected one pin completely and still the same problem.  I 
>>have multiple boards and it does it for at least two of them.  
>>
>>Thoughts?  I'd appreciate anything since I don't know where to go 
>>    
>>
>w/ 
>  
>
>>this anymore.
>>
>>Thanks.
>>
>>    
>>
>
>This may not have any relevance to your problem, but case in point...
>I had an IO pin on a LPC2102 not working.  I think what happened was 
>that because my soldering iron was not grounded and I measure 60 VAC 
>RMS between soldering iron and scope ground (which I think was 
>connected while soldering to that IO pin connection) and I think I 
>burned it out.  I just switched the software to another IO pin and it 
>works now until I can replace the part.
>
>Just be careful of differential voltages of soldering iron and 
>grounds.  This is not the first time in my life I've had this kind
>of problem.
>
>  
>
Maybe it is time to stop purchasing $10 irons from Radio Shack, and get 
a used Weller setup from ebay?  heh hee.  I've used a cheap Weller 
tranformer iron for years and haven't damaged any chips, nor worried 
about the iron being grounded or not.

Regards,

TomW


-- 
Tom Walsh - WN3L - Embedded Systems Consultant
http://openhardware.net, http://cyberiansoftware.com
"Windows? No thanks, I have work to do..."
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