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RE: Problem about boot
1. The ETRAX 100 has to be in network boot mode to output the 25 MHz clock.
Check that BS2=1 and BS1=0.
2. Check that there is activity on the address and data signals when power is applied
3. Check that the reset to ETRAX is correct
If you can't get it to work you can send us a card and we'll help you out (contact email@example.com)
From: firstname.lastname@example.org]On">mailto:email@example.com]On Behalf Of Ye Yongtao
Sent: Friday, December 14, 2001 3:30 AM
Subject: Problem about boot
I made a PCB board, the FLash is empty, I want to boot it from ethernet, but when powered on, the TXEN pin of ETRAX 100LX can not output 25M clk signal.
I have checked the external component of PLL carefully, and the input CLK is OK.
What can I do?
What conditions must be meet when 25MHz signal can be outputed?