SPRUJE8 December 2024 AM2754-Q1
This is the first revision of the User Guide and more content will be added in a short time to fully complete the user guide content. For any questions or points of clarity, refer to E2E®
If only the red power status LED (LD14) is on during power-up then the connected power supply is not able to successfully negotiate power delivery with the PD controller on the EVM. This means that the power-up sequence will not be initiated and that connecting to the SoC will not be possible. A PD-capable power adapter is required for this EVM.
The E1 revision of the EVM has a known issue surrounding BOOTMODE8 logic during power-up and reset. BOOTMODE8 has two buffers that can both drive during bootup and created unexpected states on BOOTMODE8. With BOOTMODE8 in an unexpected state, any bootmode that depends on BOOTMODE8 configuration will be affected. Please refer to the Boot Mode Selection chapter for more details on bootmode configuration.
Ensure that J22 is not connected during power-up and reset to have proper BOOTMODE8 values.
All other bootmode signals and configurations are unaffected.
External power supply or power accessory requirements:
TI recommends using an external power supply or accessory which complies with applicable regional safety standards such as (by example) UL, CSA, VDE, CCC, PSE.