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My board is not work

gong li
Prodigy 120 points

Hi all,

        When I use normally my DM4148 EVM,which is suddenly not work.

       Now,when power on the DM4148 EVM, I can hear the sound of the sizzle.I test the test point,get the following information:

   test point                                          value   

IP_EVM_12V TP1                              12V
EVM_5V0 TP3                                    max level 5.1V wave
PCI_3V3 TP10                                   0V
VDAC_1V8 TP11                               1.8V wave
CORE_VDD TP13                             0V
PLL_1V8 TP15                                  max level 1.8V wave
VAIC_1V8 TP19                                 max level 1.8V wave
EVM_1V8 TP25                                 max level 1.8V wave
VDDA_USB_1V8 TP28                    max level 1.8V wave
CVDD_ARM TP31                            0V
BCK2_3V3 TP32                              max level 4V wave
VDDA_1V8 TP33                              max level 1.8V wave
DVDD TP39                                      max level 1.8V wave
LS_EVM_3V3 TP43                         max level 4V wave
CVDD_DSP TP48                           0V
VDDQ_1V5 TP53                            0V
EVM_3V3 TP56                               max level 3V wave
CVDD_HDVICP TP58                    0V
RSTOUTn TP59                              0V
VMMC TP68                                     max level 3V wave
PORz TP75                                      0V
VREF TP76                                      0V

Give me a suggestion,which hardware is not work?

thanks in advance!

li

  • 0
    TI__Genius 11470 points

    Hello Li,

    I am sorry, but I think that it could not be so easy to diagnose a hardware break-down from a distance. Please, try to ask your nearest hardware engineer to take few measurements. The issue probably would be power related.

    Thank you.

    BR

    Vladimir