S12ZVML EVB motor stall running MTRCKTSBNZVM128_SW_Hall.exe

[ScottKerstein]

Hello,

The S12ZVMLEVB is running the MTRCKTSBNZVM128_SW_Hall.exe demo application and always gets a motor stall fault when the motor is set to Run by the EVB button or using FreeMaster following EVB power up.  Then, if the EVB reset button is pressed, the fault is cleared and the motor will run okay using the EVB button or by FreeMaster control.

However, if the EVB is powered down, followed by another power up, the fault comes back.

With the attached schematic, pots were adjusted and jumpers settings were checked.

Sorry for limited details, but wanted to know if something was missed.

Thanks, in advance.

Scott

[RadekS]

Hi Scott,

Could you please check MCU part number and maskset on top of MCU?

Please check also which error flag is set (I suppose that it will be one of the flags from GDUF register).

Described behavior may fit GLVLSF flag - GDU Low VLS Supply Flag. If it is the correct flag, you may add clearing loop somewhere into one of initialization routines. For example:

// Wait for stable supply after power up

while (GDUF_GLVLSF)

  GDUF_GLVLSF = 1;

I hope it helps you.

Have a great day,
Radek

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