topic Re: How is the BCTL and BCTLC pin set? in Model-Based Design Toolbox (MBDT)

How is the BCTL and BCTLC pin set?

byeongjinkim — Tue, 30 May 2017 06:04:51 GMT

How is the default value set for the above parameters?

VDDX uses internal power transistor? external BJT? (same BTCL pin configuration)

Re: How is the BCTL and BCTLC pin set?

Daniel_Popa — Tue, 30 May 2017 07:38:14 GMT

Hi byeongjinkim‌,

I presume this is a screenshot for CodeWarrior Processor Expert right ?

Honestly, i do not know how PEX is setting the defaults. You may want to ask the pex experts here: https://community.nxp.com/community/pex

On this community we can help you with Simulink toolbox related issues.

Thanks for your understanding!

Best regards,
Daniel

Re: How is the BCTL and BCTLC pin set?

byeongjinkim — Tue, 30 May 2017 07:45:16 GMT

nono...

My question is default setting in MCtoolbox.

Above parameter(BCTL, BCTLC, etc) can change the settings in PEX.

Then, How is the default value set for the parameters in MCtoolbox?

Re: How is the BCTL and BCTLC pin set?

Daniel_Popa — Tue, 30 May 2017 07:50:51 GMT

Ok, now i understood. The picture tricked me.

I'll come back with details asap.

Thank you!

Daniel

Re: How is the BCTL and BCTLC pin set?

Daniel_Popa — Tue, 30 May 2017 14:20:09 GMT

Hi byeongjinkim‌,

I checked the toolbox initialization and configurations. There are no particular settings involving the Voltage Regulator Control Register (CPMUVREGCTL) therefore this register will have the default values after reset.

According with the Reference Manual both EXTXON an INTXON have reset value 1's - which is confusing.

I agree with you that we need an initialization sequence according with this table in order to specify the exact setup.

Same story with BCTL and BCTLC pins. No initialization done from Simulink Toolbox.

In order to address this and configure the target the way you want, i think you can use the PEX to generate the configuration headers and then you can inject that code via S-Function into the Simulink generated code. That would do the trick in this case.

Hope it helps!

Daniel

Re: How is the BCTL and BCTLC pin set?

byeongjinkim — Tue, 30 May 2017 23:26:33 GMT

Thank you, Can i see an example configured with S-function?

Re: How is the BCTL and BCTLC pin set?

Daniel_Popa — Wed, 31 May 2017 05:56:40 GMT

Hi byeongjinkim,

Unfortunately we are out of office due to some national holidays until June 6th. I can prepare an example after that to cover this.

In the mean time you can have a look at this topic: https://community.nxp.com/thread/450048 since it is basically the same procedure.

Best regards,
Daniel