dm8168 power problem ? sys can't run

li jack77472

Prodigy 40 points

hello!~

i debug board dm8168 have problem ？ - --- please help thanks

msp430 Power Monitor

msp430 Monitor Result

i find u59 error , it not 1.5v . u59 Monitor ddr Voltage，

cpu can't run. xds510 can't stop cpu .

What is the problem ？ ddr chip error or power chip error？

i hope not ddr chip . 555~~~ help ~~~~~~

over 14 years ago

0 MarcPyne over 14 years ago

TI__Mastermind 25055 points

Hello,

Some of the earlier EVMs have a problem with electrical overstress of the TPS65232 Power Management IC, and it causes a failure in that device, and so the incorrect power gets delivered to the DM8168. In your power monitor results above you can see the wrong voltage level (1.89V) for the 1V0 CON supply. Try replacing the PMIC.

Regards,
Marc