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???
01/31/05 01:38
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#86156 - JTAG pull-up
Responding to: ???'s previous message
Hi,

why not use something more modern?

CoolRunners: http://www.8052.com/forum/read.phtml?id=10050
MAX or Lattice isp5000VE: Not found here!

Also, you need to make sure the JTAG/ISP signals are pulled up or down as required, so when the cable is disconnected, your chip doesn't decide that it wants to enter programming mode.
You mean I have to pull-up these four lines in my PCB with say 10K resistors?

Best.



List of 18 messages in thread
TopicAuthorDate
CPLD/ABEL question/invitation            01/01/70 00:00      
   CPLD questions            01/01/70 00:00      
   ABEL questions            01/01/70 00:00      
   vell...            01/01/70 00:00      
   Minimisation            01/01/70 00:00      
      NP complete            01/01/70 00:00      
   Answer to the third question            01/01/70 00:00      
   CPLD headstart (ppt)            01/01/70 00:00      
   New questions            01/01/70 00:00      
      new answers            01/01/70 00:00      
         JTAG pull-up            01/01/70 00:00      
            re: JTAG pull-up            01/01/70 00:00      
   NP completness            01/01/70 00:00      
   basic error            01/01/70 00:00      
      Eric            01/01/70 00:00      
   How to Build a Jtag Cable            01/01/70 00:00      
      pegboard            01/01/70 00:00      
   jtag cable            01/01/70 00:00      

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