target MCU has no clock or wrong BDM clock speed is used or derivative is secured!

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target MCU has no clock or wrong BDM clock speed is used or derivative is secured!

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jason_zhang
Contributor III

Hi,

 

The MCU can't be programed by MULTILINK UNIVERSAL on my new PCB。

 

MCU Type:MC9S12XEP100MAL

PE:USB-ML-UNIVERSAL

 

The same code can be programed well on the Demo board。

 

I have checked the configuration as below,nothing sames wrong。

https://community.nxp.com/message/384203

 

I checked the BKGD signal by Oscilloscope as below,did the failure caused by the  BKGD signal?

Could you kindly give me some advice, thanks!

note:“OK” means can be programed on demo board

           “NG” means can't be programed on my new PCB

Jason

 167152_167152.pngpastedImage_1.png

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1 Solution
1,767 Views
iggi
NXP Employee
NXP Employee

Hi,

What does it mean exactly 'it can't be programmed'?

Did you try unsecuring the microcontroller? Please, see this post:
Unsecuring MC9S12XEP100MAG

Please ensure that MCU supply pins are correctly managed as well as /RESET, TEST, MODA/B/C pins and external oscillator circuitry around EXTAL/XTAL pins.

Here is a checklist you can go through:
https://community.nxp.com/thread/320196 

Regards,

iggi

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2 Replies
1,768 Views
iggi
NXP Employee
NXP Employee

Hi,

What does it mean exactly 'it can't be programmed'?

Did you try unsecuring the microcontroller? Please, see this post:
Unsecuring MC9S12XEP100MAG

Please ensure that MCU supply pins are correctly managed as well as /RESET, TEST, MODA/B/C pins and external oscillator circuitry around EXTAL/XTAL pins.

Here is a checklist you can go through:
https://community.nxp.com/thread/320196 

Regards,

iggi

1,767 Views
jason_zhang
Contributor III

Hi iggi,

Thank you for your help.

The MODA and MODB =1 cause the problem.

Thank you very much!

Jason