S12 / MagniV MicrocontrollersのトピックRe: MC9S12ZVML128_LIN_BLDC_Sensorless code

MC9S12ZVML128_LIN_BLDC_Sensorless code

itsnewforme — Wed, 21 Sep 2022 07:52:49 GMT

1) I'm using the MC9S12ZVML128 Microcontroller as Lin Slave and I'm using CANoe as Master. I'm able to control the speed of the motor using CANoe.

2) I'm using CodeWarrior IDE to flash the code in the MCU.

3) After flashing the code, and running the code in debug mode the code works fine. PFA

4) But, after flashing the code in the Microcontroller, removing the debugger and after resetting the ECU the code is not working. ( i.e release mode ) PFA

please help , thanks in advance :))

Re: MC9S12ZVML128_LIN_BLDC_Sensorless code

lama — Wed, 21 Sep 2022 14:20:15 GMT

Hi,

have you add any code to the application?

This behavior usually happens when some register "write anytime in the special mode" is "write once only" (also no cumulative write is accepted) in the normal mode .

Best regards,

Ladislav

Re: MC9S12ZVML128_LIN_BLDC_Sensorless code

itsnewforme — Thu, 22 Sep 2022 05:04:04 GMT

@lama No, I have not added any code to the application. I'm using the code as it is

Re: MC9S12ZVML128_LIN_BLDC_Sensorless code

danielmartynek — Mon, 26 Sep 2022 08:50:09 GMT

Hello @itsnewforme,

Do you power cycle the MCU?

If so, can you attach the debugger back (without reset) and halt the execution to see where the code got stuck?

Can you read the GDU registers?

Is there a fault flag set?

Thank you,

BR, Daniel

Re: MC9S12ZVML128_LIN_BLDC_Sensorless code

itsnewforme — Tue, 27 Sep 2022 11:30:45 GMT

@lama @danielmartynek Thanks for your reply, I did checked all the points that you have mentioned but it didn't fixed the issue.

BUT, we were checking the S12zvm.prm file and we found out that the VECTOR 0 _Startup is commented. PFA

after uncommenting the highlighted part the code works fine in standalone mode.

Please confirm if this is a correct fix for this issue.

Thanks & Regards

Abhijit

Re: MC9S12ZVML128_LIN_BLDC_Sensorless code

danielmartynek — Tue, 04 Oct 2022 12:47:55 GMT

Hi @itsnewforme,

I'm sorry for the delay.

Which version of the SW do you have?

Thanks,

BR, Daniel

Re: MC9S12ZVML128_LIN_BLDC_Sensorless code

itsnewforme — Thu, 06 Oct 2022 06:25:46 GMT

Hii, I don't know the exact version. But it is available on the NXP homepage of S12ZVM. PFA

Link

Thanks for you reply

Re: MC9S12ZVML128_LIN_BLDC_Sensorless code

danielmartynek — Thu, 06 Oct 2022 11:18:19 GMT

I don't see any S12ZVM demo there.

Did you combine it with the BLDC demo?

BR, Daniel