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BoraLite Adapter for the BoraXEVB carrier board

Revision as of 08:29, 18 February 2020 by U0001 (talk | contribs) (U0001 moved page BoraXEVB BoraLite Adapter to BoraLite Adapter for the BoraXEVB carrier board)

Info Box
BORALite-TOP.png Applies to BORA Lite

Contents

IntroductionEdit

BORA Lite requires a dedicated adapter to be plugged to the BoraXEVB carrier board. This adapter:

  • provides the SODIMM socket for the BORA Lite SOM
  • provides the following additional features:
    • microSD slot (for SD boot)
    • JTAG connector
    • CAN traslator for testing the CAN bus on BoraXEVB
  • routes the signals from the BORA Lite pins to the BoraXEVB mating connectors

The following images show the top and bottom views of the BoraLite Adapter:

 
Top view
 
Bottom view

Connectors' pinoutEdit

J1 - SODIMM connectorEdit

J1 is a TE Connectivity 204-pin SODIMM socket. The pinout matches the Axel Lite pinout.

J4, J5, J6 - BoraXEVB mating connectorsEdit

J4, J5 and J6 are Hirose FX8C-140S-SV connectors that match the BoraXEVB SOM connectors' pinout.

J2 - JTAGEdit

J2 is a SAMTEC FSI-110-03-G-S connector. The following table reports the connector's pinout:

Pin# Pin name Function Notes
1 DGND - -
2 JTAG_TCK - -
3 JTAG_TMS - -
4 JTAG_TDO - -
5 JTAG_TDI - -
6 FPGA_INIT_B - -
7 FPGA_PROGRAM_B - -
8 FPGA_DONE - -
9 D.N.C. - -
10 3V3 - -

CANEdit

Pins IO_L6P_T0_34 and IO_L19P_T3_34 can be used as CAN_TX and CAN_RX for the CAN0 interface. The BoraLite adapter provide the SN65HVD232 CAN bus transceiver required for proper CAN bus bus interface.

The CAN_L and CAN_H translated signals are routed to the J5.103 and J5.105 connector pins on BoraXEVB.

SchematicsEdit

BOMEdit

LayoutEdit