Looking for IDA expert to RE automotive chip


I need some RE done on a bin I got off a mc9s12dt256 MCU. Should be a really simple job for someone fluent in IDA. I know exactly what I need (need to know how a certain cheksum is being calculated).

Can pay with paypal or BTC, whatever it convenient for you.

Please DM or email.

Good afternoon.
Describe in more detail what you need.