new devkit zvl128 vddx led not powered on

[basilmathew]

Have received new board today . DEVKIT-ZVL128 , when connected and tried do a test pgm after successful compilation , it is showing error

"Error launching testfour_FLASH_PnE U-MultiLink
HC/RS/S12Z GDI Protocol Adapter : Can't connect. The Debugger can not connect to the P&E device"

on later inspection found that the VDDX  LED is not ON . 

ALL Jumpers are in the default position .

Powered from USB , LED D2 and D3 is ON . 

Regards,

Basil

[basilmathew]

GOT MY ANSWER FROM  AN OLD POST THANKS YOU , FOR THIS .

• • Hi Peter,

    Unfortunately, the DEVKIT-ZVL128 board cannot be directly powered from USB.

    The assembled S12ZVL128 MCU is part of MagniV family which is designed for powering directly from 12V line. So, the 5V from USB is simply not sufficient for MCU powering.

     

    Note: The S12ZVL128 MCU may be theoretically directly powered from 5V power supply connected to the VDDX/VDDA pin (MCU is not designed for such use). However, in such case we must connect also VSUP pin the same power line for avoiding any issue with transient effects. Such connection will also disable main features of this MCU(integrated power supply, internal LIN PHY,…)

     

    Yes, the 'Power Supply Selection section with jumper option to P5V_SWUSB' is just misunderstanding.

    The jumper J13 (+JP1) choose one of source power supplies (MCU, USB, U13 voltage regulator) only for on-board CAN transceiver and Arduino-Uno compatible J3 header. The output from J13 jumper is P5V0 signal.

     

    I hope it helps you.

    Best reagrds

    Radek

    ****************************************************************************************************************