Part Number: AM4378
Other Parts Discussed in Thread: TPS65218
Hi, everyone:
I get a EVM board and it works well for several months. While something is wrong with it today. When bootloader trys to start Linux, there are some unreadable code printed.
At this time, the LED powered by 3.3V form TPS65218 's DCDC4 goes out.
I also measure other output channels of TPS65218, they all drop to 0V.
The board is boot from SD card. When same card with same image file be used in another board, it works well.
