Hex file settings

[saranbabu]

Hello Team,

I've successfully created the hex file, for my requirement I need to validate hex file in the application firmware to update over the bootloader.  For this, how to include the signature or checksum in the hex file?, whether it can do with MCU Xpresso or in the firmware.  Please do me the needful for this requirement.

Thank you

[Petr_H]

Hi,

Your question does not relate to Config Tools (this community section), but anyway, the following article might be interesting for you: https://community.nxp.com/t5/LPC-Microcontrollers-Knowledge/CRC-Checksum-Generation-with-MCUXpresso-...

Regards 

Petr Hradsky

Config Tools Team

[KalaimaniArumugamdev]

Hi @saranbabu 

           Generally, the intel hex file already contains an 8-bit checksum and you can use it. Refer https://developer.arm.com/documentation/ka003292/latest#:~:text=The%20Intel%20HEX%20file%20is,code%2.... for more details.