What is the process to flash the KMS library on a KV31?

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What is the process to flash the KMS library on a KV31?

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spencerpallas
Contributor II

Hello,

 

We are making custom boards that have the KV31 MCU on them. During firmware installation, the KMS library was accidentally erased and the MCU was set in secure mode. What do we need on our boards in order for the KMS library to be reflashed? We currently have a Mini 10-pin JTAG connector and are flashing the boards using the SWD protocol.

 

Thanks,

Spencer

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xiangjun_rong
NXP TechSupport
NXP TechSupport

Hi, Spencer,

The KV31 with "P" suffix have the KMS library in flash which is written in factory. Unfortunately, the KMS library is third party code, we have not the source code, we have not the binary code either.

Sorry for not helping you.

BR

Xiangjun Rong

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philip_drake
NXP Employee
NXP Employee

Spencer, the only way for you  to re-activate your MCU's with KMS library is to removed the secured devices and replace them with production parts. For the QFP package parts this is not a difficult task with the right equipment. 

Regards, 

Philip

124 Views
xiangjun_rong
NXP TechSupport
NXP TechSupport

Hi, Spencer,

The KV31 with "P" suffix have the KMS library in flash which is written in factory. Unfortunately, the KMS library is third party code, we have not the source code, we have not the binary code either.

Sorry for not helping you.

BR

Xiangjun Rong

View solution in original post