KW45B41Z83 Fuse Read

[Lu888]

 I use this API to read fuse index = 0x20 ,but return is kStatus_NBOOT_Fail(0x5a5aa5a5U),I want to know why this is happening，and the parameter-->systemClockFrequencyMHz how to set up?Before use this API,I have already used nboot_context_init this API.

[Ricardo_Zamora]

Hello,

Hope you are doing well. The main purpose of these APIs is to provide access to functions used and implemented in ROM to authenticate the application image and processing sb3 files.

For this, it is recommended to some of these resources:

• KW45 Secure Boot Using the SEC Tool
• Programming the KW45 flash for Application and Radio firmware via Serial Wire Debug during
• Managing Lifecycles on KW45
• Updating KW45 Radio Firmware via ISP using SPSDK
• Secure Boot for KW45

So, depending on what you are trying to do, I would recommend you check any of these Application Notes.

Hope this helps.

Best Regards,

Ricardo