Hello Harald,
On Fri, 17 Apr 2009 10:17:13 +0200, "Harald Welte" laforge@gnumonks.org wrote:
Dieter, what I just found out is that the LI object has a user-configurable setting, where we can force it to be stand alone or locked to the E1.
We could add this setting to the bs11_config program so people can try if their E1 clock or their [10 years uncalibrated] BS11 internal oscillator is better.
What do you think?
I did a quick test with this setting and it seems to work fine with the BS-11 (so we should not believe the documentation ;-).
Here is the LMT dump for the PLL Mode, it can be changed during normal operation:
; Locked Tx D0A5070000FC0102 Rx D1A5070000FC0102
; Standalone Tx D0A5070000FC0103 Rx D1A5070000FC0103
A little bit strange is the behaviour of NM_ATT_BS11_CCLK_ACCURACY, if the PLL Mode is set to "Standalone", it changes to "high accuracy", however if you restart the BS-11, this attribute stays at "medium accuracy". Maybe NM_ATT_BS11_CCLK_ACCURACY has no meaning if the PLL Mode is set to "Standalone".
Best regards, Dieter