Bureaucrats, dave_user, Administrators
8,154
edits
Changes
→Revision 0
{{InfoBoxTop}}
{{AppliesToAxelLite}}
** JTAG connector
** dip-switch for boot mode selection
* routes the signals from the AxelLite pins to the AxelEVB-Lite mating connectors
{{ImportantMessage|text=There are two versions of the adapter. Revision 0 is used in combination with the [[AxelEVB-Lite_rev.0|AxelEVB-Lite revision 0]]. Revision A is used in combination with the [[AxelEVB-Lite|AxelEVB-Lite revision A]].}}
== Block diagram =Revision 0===The following images show the top and bottom views of the AxelEVB-Lite-Adapter revision 0:
[[Image:Axellite-adapter-top1.jpg|thumb|none|border|350px|Top view]]
[[Image:Axellite-adapter-bottom.jpg|thumb|none|border|350px|Bottom view]]
===Revision A===
The following images show the top and bottom views of the AxelEVB-Lite-Adapter revision A:
[[Image:Axellite-adapter-rev.A-top.jpg|thumb|none|border|350px|Top view]]
[[Image:Axellite-adapter-rev.A-bottom.jpg|thumb|none|border|350px|Bottom view]]
== Connectors' pinout ==
=== J6 - SODIMM connector ===
J6 is a TE Connectivity 204-pin SODIMM socket. The pinout matches the [[Pinout_(AxelLite) | Axel Lite pinout]].
=== J1, J2, J3 - AxelEVB-Lite mating connectors ===
J1, J2 and J3 are Hirose FX8C-140S-SV connectors that match the [[AxelEVB-Lite#Connectors_pinout | AxelEVB-Lite SOM connectors' pinout]].
=== J4 - JTAG ===
{| class="wikitable"
|-
!Pin#
!Pin name
!Function
!Notes
|-
|1 || DGND || - || -
|-
|2 || JTAG_TCK || - || -
|-
|3 || JTAG_TMS || - || -
|-
|4 || JTAG_TDO || - || -
|-
|5 || JTAG_TDI || - || -
|-
|6 || JTAG_nTRST || - || -
|-
|7 || CPU_PORn || - || -
|-
|8 || N.C. || - || -
|-
|9 || N.C. || - || -
|-
|10 || JTAG_VREF || - || -
|-
|}
== Boot mode selection ==
The following sections detail how to select the boot option depending on the adapter's revision.
For further details, please refer to [[Boot_options_(AxelLite) | this page]], which describes the available boot modes thoroughly.
===Revision 0===
This adapter provides a switch that allows selecting the boot device according to the following table. The available boot options differ depending on the Axel Lite type. In this regard, there are basically two types: those that are equipped with both NOR and NAND flash, and those that are equipped with NAND flash only.
{| class="wikitable"
|+
! rowspan="2" |Axel Lite type
! colspan="2" |S1.2
position
|-
!on
!off
|-
|NOR and NAND flash
|microSD card
|NOR flash
|-
|NAND flash only
|microSD card
|NAND flash
|}
It is worth remembering that, when using Axel Lite in combination with AxelEVB-Lite revision 0, the S5, S6, S7, S8, and S9 switches of the carrier board don't affect the boot options.
===Revision A===
Revision A does not integrate any switch. To select the boot source, please use the S9.2 switch provided by the [[AxelEVB-Lite#Boot_configurations|AxelEVB-Lite rev. A]] board instead.
The selectable boot options differ depending on the Axel Lite type. In this regard, there are basically two types: those that are equipped with both NOR and NAND flash, and those that are equipped with NAND flash only.
{| class="wikitable"
|+
! rowspan="2" |Axel Lite type
! colspan="2" |S9.2
position
|-
!on
!off
|-
|NOR and NAND flash
|microSD card
|NOR flash
|-
|NAND flash only
|microSD card
|NAND flash
|}
==Technical documentation==
=== Revision 0 ===
====Schematics====
* Orcad: http://mirror.dave.eu/axel/hw/AxelEVBLite-Adapter/rev-0/axelevb-lite-adapter-CS010214_S.XLADP0000I0R.0.9.1.dsn__0.zip
* PDF: http://mirror.dave.eu/axel/hw/AxelEVBLite-Adapter/rev-0/axelevb-lite-adapter-CS010214_S.XLADP0000I0R.0.9.1-color.pdf
====BOM====
* http://mirror.dave.eu/axel/hw/AxelEVBLite-Adapter/rev-0/axelevb-lite-adapter-CS010214_S.XLADP0000I0R.0.9.1.BOM_.csv__0.zip
====Layout====
* http://mirror.dave.eu/axel/hw/AxelEVBLite-Adapter/rev-0/axelevb-lite-adapter-CS010214_Assem.pdf
====Mechanical Drawings ====
*DXF (2D): http://mirror.dave.eu/axel/hw/AxelEVBLite-Adapter/rev-0/axelevb-lite-adapter-CS010214-DXF.zip
*IDF (3D): http://mirror.dave.eu/axel/hw/AxelEVBLite-Adapter/rev-0/axelevb-lite-adapter-CS010214-IDF.zip
