JTRST Pull-Up or Pull-Down?

davidc.fly9 · ‎2008-07-30

Posted on July 31, 2008 at 04:45

davidc.fly9 · ‎2011-05-17

Posted on May 17, 2011 at 09:54

Greetings,

AN2339 (STR91xx Hardware Development Getting Started) seems to have a conflict. On page 14 the document recommends a pull-down resistor for the JTRST of the JTAG port. However, on page 18 the example schematic shows a pull-up resistor on that pin. Can anyone clear this up?

Thanks,

David

amira1 · ‎2011-05-17

Posted on May 17, 2011 at 09:54

Hello david.c.fly,

It is an error in the documentation. We have already posted to correct it in the next version. In fact, we recommend a pull-up resistor for the JTRST pin and not a pull-down.

Thank you to mention it.

Best regards,

mirou.