FMS OEM CHIP

FMS OEM CHIP is preset microcontroller PIC 18F4680 in 44-pin TQFP case designed for integration into the system for car monitoring, systems for car fleet administration and so on. The chip performs pre-processing of data from the car CAN bus and, if applicable, from DTCO 1381 digital tachograph to which it is connected by means of its info interface. Current firmware version supports data processing from CAN bus of cars that use SAE J1939 protocol and data processing from CAN bus of some VW cars (including Škoda), Mercedes Sprinter, Nissan and so on. It supplies these pre-processed data into superordinate system by means of SPI bus functioning in SPI slave mode, or by means of RS232 interface (UART).

Version 5 of this chip allows reading of car error codes and contains support for direct user data reading from CAN or sending data to CAN.

On demand, different car equipped with CAN bus can be imported into the firmware. It is necessary to have the car available for a while so the measurement for the identification of data required at the CAN bus of this car can be done.

     

V3

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V4

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V5

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V6

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V6 - NMEA 2000

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V7

Manual-update FW

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V7

Manual-Remote

tachograph download

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Checksum calculator