SPRZ436G October 2015 – February 2021 AM5706 , AM5708 , AM5716 , AM5718 , AM5718-HIREL
DPLL_VIDEOn May Require Multiple Lock Attempts
Medium
In rare circumstances the DPLL_VIDEO1 and DPLL_VIDEO2 PLLs may not lock on the first attempt during SoC initialization. When this occurs a subsequent attempt to relock the PLL will result in the PLL successfully locking.
In order to successfully lock the PLL, the following software sequence is recommended:
The PLL will typically lock after the second attempt of the above. However, additional attempts could be required (Step 5 above).
AM571x SR 2.1, 2.0, 1.0
AM570x SR 2.1, 2.0
DRA79x: 2.1, 2.0
TDA2Ex (23mm): 2.0, 1.0
TDA2Ex (17mm): 2.1, 2.0
AM571x: 2.1, 2.0, 1.0
AM570x: 2.1, 2.0
DRA72x: 2.0, 1.0
DRA71x: 2.1, 2.0