Rev. 6.2
Micronet SmarTab 8 – Hardware Guide
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6. Enhanced Cradle Model
Overview
The Enhanced Cradle ST-CRD model supports a wide range of serial communication ports, control I/O
signals, and vehicle BUS interface connections.
Platform Core
MCU Processor
The enhanced cradle MCU CPU consists of the Freescale K20_120 MQX RTOS.
Functional Details
The Micronet SmarTab 8 enhanced cradle provides the following interfaces:
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12V/24V for charging the Micronet SmarTab 8 battery
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Digital input signal for ignition switch control
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Seven general-purpose input lines, A2D or Automotive digital inputs
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Four general-purpose open-collector output lines
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Three serial communication lines and co-processor debug line
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J1939 CAN interfaces
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Single Wire CAN
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J1708 interface
Enhanced Cradle Dev Cable
In addition to the standard cradle, the Micronet SmarTab 8 enhanced cradle also provides two J1939 CAN
interfaces, a Single Wire CAN line, a J1708 line, two more serial communication lines, and five more GPIOs.
The power and ignition lines, a serial comm and serial debug line, and two of the GPIOs are included in the
enhanced cradle DTK package; however, these interfaces are part of the standard cradle – see Standard
