Difference between revisions of "BoraLite Adapter for the BoraXEVB carrier board"

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==Routing options==
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== CAN ==
[[BoraXEVB#SoM.27s_signals_mapping|This table]] helps to map Bora Lite's signals when it is mated with the [[BoraXEVB|BoraXEVB]] carrier board. '''That table assumes that the adapter is populated according to the default mounting option''', which is illustrated in the schematics available [[#Schematics|here]].
 
 
 
At the adapter level, other mounting options are available, however. Please refer to the [[#Schematics|schematics]] for more details.
 
 
 
== CAN bus ==
 
 
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 [http://www.ti.com/lit/ds/symlink/sn65hvd230.pdf SN65HVD232] CAN bus transceiver required for proper CAN bus bus interface.
 
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 [http://www.ti.com/lit/ds/symlink/sn65hvd230.pdf 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.
 
The CAN_L and CAN_H translated signals are routed to the J5.103 and J5.105 connector pins on BoraXEVB.
  
==Technical documentation==
 
 
===Schematics===
 
===Schematics===
 
* Orcad: [[mirror:bora/hw/BoraLiteADP/boralite-adapter_S-BLADP0000I0R-1.0.1-dsn.zip|boralite-adapter_S-BLADP0000I0R-1.0.1-dsn.zip]]
 
* Orcad: [[mirror:bora/hw/BoraLiteADP/boralite-adapter_S-BLADP0000I0R-1.0.1-dsn.zip|boralite-adapter_S-BLADP0000I0R-1.0.1-dsn.zip]]

Revision as of 10:23, 10 February 2020

Info Box
BORALite-TOP.png Applies to BORA Lite

Introduction[edit | edit source]

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' pinout[edit | edit source]

J1 - SODIMM connector[edit | edit source]

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

J4, J5, J6 - BoraXEVB mating connectors[edit | edit source]

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

J2 - JTAG[edit | edit source]

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 - -

CAN[edit | edit source]

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.

Schematics[edit | edit source]

BOM[edit | edit source]

Layout[edit | edit source]