ComponentsOther Resources:
LTC AFE:
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Components:
AFEs
The AFEs (analog front end) handle interactions with the main battery pack. There are multiple AFEs (LTC6811 chips) which handle reading cell voltages, reading thermistors to determine cell temperatures, and doing load balancing for the cells. These multiple AFE units are daisy-chained through one SPI interface. This SPI interface is interacted with the same as normal spi, but through hardware is translated to isoSPI and back to SPI for improved reliability.
AFE FSM
The LTC AFE FSM is responsible for handling the different states required for generating cell sense and a data (cell voltages) as well as aux data (thermistor readings)
LTC AFE Driver FSM Structure:
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