您好，各位大咖，我现在用am335x_zcz ibis模型转换为dml模型，采用的是CADENCE 16.6，结果转换不成功。打印的log如下：

(Notes "1) Checked with IBISCHK5.0.0 with the following exceptions...
417 warnings. These warnings can be waived.
2) Model not valid until this section updated.
Some pins may contain selectors which are not valid options
for that particular pin.
Please refer to the device datasheet for information on picking
the correct selector model, which depends on various software
register configurations.
Some pins are modeled as IO or tri-state for output mode.")
(PackageModel "SPRM552C_am335x_zcz"))))