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Lpc2000

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Re[2]: [lpc2100] Re: ETM and IO pins in debug mode

2004-02-09 by Peter Kuhar

If you're going to use UART ISP, just connect max3232 touart ena and
use lpc21xx isp utility. ISP is enter by holding P0.14 low during
reset. All other pins are free to use.


Pero
---
http://www2.arnes.si/~pkuhar/

Monday, February 9, 2004, 7:19:33 PM, si napisal:
> Jim Beagley wrote:

>> Helge,
>>   To use those pins durring debug, you must use the secondary JTAG
>> port, to do this you must have connections for BOTH primary, and
>> secondary JTAG ports. Your code must enable the PIN Sel functions for
>> the secondary JTAG port, and then it may be used, and you only lose
>> the upper pins.
>> 
>>   Scan the previous posts, as we have discussed the solution before.
>> 

> I've not yet read that section of the LPC manual in detail (I aim to use
> the UART for ISP rather than JTAG), so would anyone fancy writing a 
> short paragraph about the primary/secondary JTAG and what pins they use
> up that I can put on the Wiki?

> If you don't fancy writing your own Wiki markup, just email me some text
> and I'll put it in for you.

> I think this is going to be a frequently asked question, you see...

> ABS



 
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