Closed Hedda closed 3 years ago
Note! This is a follow up to https://github.com/xsp1989/zigbeeFirmware/issues/4 as a separate issue so the other can be closed separately when resolved.
Does the LFXO Capacitor Bank (CMU clock) also have to be calibrated/tuned and the current tune/tuning value set for that as well in the firmware for ITead Zigbee 3.0 USB Dongle Model 9888010100045 with hardware version 1.3 or?
https://www.silabs.com/community/mcu/32-bit/forum.topic.html/clibrate_lfxo_inefr-3I0T
https://www.silabs.com/community/mcu/32-bit/forum.topic.html/how_do_i_use_thetun-Pqlx
https://www.silabs.com/community/mcu/32-bit/forum.topic.html/how_to_improve_lfxoaccuracyinbgm13p22-v4qc
They reference to:
https://www.silabs.com/documents/public/application-notes/an0004.2-efr32-series2-cmu.pdf
and
https://www.silabs.com/documents/public/application-notes/an0004.1-efm32-cmu.pdf
All these manufacturing tests have not yet been done or?
https://www.silabs.com/documents/public/application-notes/an700-1-mfg-test-guidelines-efr32.pdf
PS: Read about LFXO in KB article below "This KBA focuses only to HFXO calibration but the LFXO has its own capacitor bank."
https://www.silabs.com/community/wireless/proprietary/knowledge-base.entry.html/2019/03/18/hfxo_capacitor_bank-7uRt
Might this also be related to issues reported in https://github.com/home-assistant/core/issues/48592 ?
The firmware does not use LFXO (low frequency crystal oscillator)and does not require calibration。
Note! This is a follow up to https://github.com/xsp1989/zigbeeFirmware/issues/4 as a separate issue so the other can be closed separately when resolved.
Does the LFXO Capacitor Bank (CMU clock) also have to be calibrated/tuned and the current tune/tuning value set for that as well in the firmware for ITead Zigbee 3.0 USB Dongle Model 9888010100045 with hardware version 1.3 or?
https://www.silabs.com/community/mcu/32-bit/forum.topic.html/clibrate_lfxo_inefr-3I0T
https://www.silabs.com/community/mcu/32-bit/forum.topic.html/how_do_i_use_thetun-Pqlx
https://www.silabs.com/community/mcu/32-bit/forum.topic.html/how_to_improve_lfxoaccuracyinbgm13p22-v4qc
They reference to:
https://www.silabs.com/documents/public/application-notes/an0004.2-efr32-series2-cmu.pdf
and
https://www.silabs.com/documents/public/application-notes/an0004.1-efm32-cmu.pdf
All these manufacturing tests have not yet been done or?
https://www.silabs.com/documents/public/application-notes/an700-1-mfg-test-guidelines-efr32.pdf
PS: Read about LFXO in KB article below "This KBA focuses only to HFXO calibration but the LFXO has its own capacitor bank."
https://www.silabs.com/community/wireless/proprietary/knowledge-base.entry.html/2019/03/18/hfxo_capacitor_bank-7uRt