The SCS Controller uses SCS_OTA and SCS_DUAL firmware to update two microprocessors.
The two microprocessors inside the SCS Controller are:
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Hi-side micro - responsible for all voltage, power and current monitoring and S1 and S2 switching. The hi-side microprocessor can be updated by SCS_DUAL firmware but should only be used when controller is exposed to voltage related issues. This code wipes out all existing statistics from the controller.
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Main micro - responsible for all control algorithms. The main micro microprocessor can be updated by SCS_OTA firmware which is considered to be a standard code and SCS_DUAL firmware which should only be used when controller is exposed to voltage related issues. This code wipes out all existing statistics from the controller.
The diagram below shows a basic representation of both microprocessors on SCS motherboard.
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