Difference between revisions of "AxelEVB-Lite-Adapter (AxelLite)"
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Revision as of 09:23, 24 April 2015
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Contents
Introduction[edit | edit source]
Axel Lite requires a dedicated adapter to be plugged to the AxelEVB-Lite carrier board. This adapter:
- provides the SODIMM socket for the AxelLite SOM
- provides the following additional features:
- microSD slot (for SD boot)
- JTAG connector
- dip-switch for boot mode selection
- routes the signals from the AxelLite pins to the AxelEVB-Lite mating connectors
 This page provides information for the AxelEVB-Lite Adapter board model S-XLADP0000I1R (BOM 2.0.0), provided with XELK kits version 2.1.0 and above. If you have a board from a previous version of the XELK kit (older than 2.1.0), please contact support-axel@dave.eu. |
The following images show the top and bottom views of the AxelEVB-Lite-Adapter:
Connectors' pinout[edit | edit source]
J6 - SODIMM connector[edit | edit source]
J6 is a TE Connectivity 204-pin SODIMM socket. The pinout matches the Axel Lite pinout.
J1, J2, J3 - AxelEVB-Lite mating connectors[edit | edit source]
J1, J2 and J3 are Hirose FX8C-140S-SV connectors that match the AxelEVB-Lite SOM connectors' pinout.
J4 - JTAG[edit | edit source]
J4 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 | JTAG_nTRST | - | - |
| 7 | CPU_PORn | - | - |
| 8 | N.C. | - | - |
| 9 | N.C. | - | - |
| 10 | JTAG_VREF | - | - |
Boot mode selection[edit | edit source]
S1 is a 2-way dip switch for the boot mode selection (PIN: BOOT_MODE_SEL). The following table reports the available configurations for the two Axel Lite models. For further details, please refer to Axel Lite boot options.
Boot from SD/NAND[edit | edit source]
| Switch | Position | Function | Notes |
|---|---|---|---|
| S1.1 | N.C. | - | - |
| S1.2 | OFF | BOOT_MODE_SEL = 0 Boot from SD |
- |
| S1.2 | ON | BOOT_MODE_SEL = 1 Boot from NAND |
- |
Boot from SD/SPI NOR[edit | edit source]
| Switch | Position | Function | Notes |
|---|---|---|---|
| S1.1 | N.C. | - | - |
| S1.2 | OFF | BOOT_MODE_SEL = 0 Boot from SD |
- |
| S1.2 | ON | BOOT_MODE_SEL = 1 Boot from SPI NOR |
- |
Schematics[edit | edit source]
- Orcad: http://dave.eu/system/files/area-riservata/axelevb-lite-adapter-CS010214B_S.XLADP0000I1R.2.0.0.dsn_.zip
- PDF: http://dave.eu/system/files/area-riservata/axelevb-lite-adapter-CS010214B_S.XLADP0000I1R.2.0.0.pdf
