{{ImportantMessage|text=This page provides information for the AxelEVB-Lite carrier board model S-EVBA1000C1R (BOM 1.0.4), provided with XELK kits version 2.1.0 and above.
For AxelEVB-Lite revision 0 manufactured before the release of XELK 2.1.0, please refer to [[AxelEVB-Lite_rev.0|this page]].
==Introduction==AxelEVB-Lite is a carrier board designed to host [[Axel Ultra SOM:Category:AxelUltra|Axel UltraAXEL ULTRA]] and [[Axel Lite SOM:Category:AxelLite|Axel LiteAXEL LITE]] (through an adapter) SoMs. It exports some specific peripherals connectors and acts as an adaptation board used in combination with [[:Category:Dacu|Dacu]] carrier board.
==Block Diagram==
The following picture shows Axel-EVB-Lite's block diagram:
* Pin strip expansion connectors for additional peripherals
* 2x 140 pin connectors for [[Dacu]] carrier board.
* Supports Support for the following SOMs:** Axel Ultra and ** Axel Lite (through the [[AxelEVB-Lite-Adapter_(AxelLite) | Axel Lite Adapter]]) SOMs
== Known limitations ==
The following table reports the known limitations of the latest version of the carrier board:
{| class="wikitable"
|-
!Issue
!Description
|-
| <strike>ETH0 interface</strike>
| <strike>Mistake in the connection of the center tap pins. They should be separated from one another and connected through separate 0.1μF common-mode capacitors to ground (for further details (eg: connection and selection of the magnetics), please refer to the Micrel KSZ9031RNX datasheet).</strike>
|-
|}
== Connectors pinout ==
|----
|J1.98
|GPIO_18/PMIC_INT_B
|General Purpose I/O
| -
|----
|J1.122
|NVCC_AXEL_I/O_3.3V/1.8V(BOARD_PGOOD)
|3.3/1.8V
| -
|----
|J2.104
|RTC_VBATNOR_WP|RTC Battery Power SupplyNOR Write Protect|Battery on DACU board-
|}=== UART3 10 || CSI_D2P || - J28 ===J28 is a standard DB9 connector for the RS232 two|| -wires UART3 port. The following table reports the connector's pinout:{| class="wikitable"
=== SOM Power Voltage Selector - J32 === J32 is a 4x2-pin 2.54 pitch vertical header for SOM power voltage selection. The available configurations are the following:
J52 is a microSD memory card connector. The following table reports the connector's pinout:
!Notes
|-
|1 ||SD2_DAT2SD1_DAT2||| DATA[2] || -
|-
|2 ||SD2_DAT3SD1_DAT3||| Card Detect/DATA[3] || -
|-
|3 ||SD2_CMDSD1_CMD||| CMD line || -
|-
|4 ||NVCC_AXEL_I/O_33.3V/1.8V||| Power Supply || -
|-
|5 ||SD2_CLKSD1_CLK||| Clock || -
|-
|6, 9, 10, 11, 12 ||DGND||| - || -
|-
|7 ||SD1_DAT0||| DATA[0] || -|-|8 ||SD1_DAT1||| DATA[1] || -|-|13 ||3.3V|| - || -|-|} === General purpose SD connector - J55 === J52 is a microSD memory card connector. The following table reports the connector's pinout: {| class="wikitable" |-!Pin# !Pin name!Function!Notes|-|1 ||SD2_DAT3||| DATA[3] || -|-|2 ||SD2_CMD||| CMD line || -|-|3, 6 ||DGND||| Ground || -|-|4 ||3.3V||| Power Supply || -|-|5 ||SD2_CLK||| Clock || -|-|7 ||SD2_DAT0||| DATA[0] || -
|-
|8 ||SD2_DAT1||| DATA[1] || -
|-
|13 9 ||GPIO_0SD2_DAT2|| - | DATA[2] ||Pull up to 3.3V with 10K Ohm -
|-
|}
=== Pin strip connectors SPI PMOD - JP17 ===
==== J-PROG-MICRO1 ====J-PROG-MICRO1 JP17 is a 3x212-pin, 26x2x2.54mm 54 pitch vertical header, pinstrip connector. The following table reports the pinout of the connector's pinout:
JP7 is a 8x2-pin 2.54mm pitch header pinstrip connector. The following table reports the connector's pinout:
{| class="wikitable"
|-
!Pin#
!Pin name
!Function
!Notes
|-
|1 || CSI_D3P || Data3 + ||
|-
|2, 5, 8, 11,<br> 14, 16 || DGND|| Ground|| -
|-
|3 || CSI_D3N || Data3- ||
|-
|4 || CSI_D2P|| Data2+ || -
|-
|6 || CSI_D2M|| Data2-|| -
|-
|7 || CSI_D1P|| Data1+|| -
|-
|9 || CSI_D1M|| Data1- || -
|-
|13 || CSI_CLK0P|| Clock+ || -
|-
|15 || CSI_CLK0M|| Clock- || -
|-
|}
==== EXPANSION CONNECTOR - JP8 ====
|}
==Boot configurations == MIPI DSI The AxelEVB- JP11 ====Lite carrier board can host two different SoM's, [[:Category:AxelUltra|Axel Ultra]] and [[:Category:AxelLite|Axel Lite]].
JP11 is a 8x2-pin 2.54mm pitch header pinstrip connector. The following table reports sections detail boot configuration options, which differ depending on the connector's pinout:SoM.
{| class="wikitable" ==Axel Ultra======= uSD card ==== |Dip-switch configuration:!Pin# !Pin name<pre>S5[1..8] : On Off On On On On Off Off!FunctionS6[1..8] : Off Off On On Off On On On!NotesS7[1..8] : Off Off On On On On On On |-S8[1..8] : On Off On On Off On On On|S9[1, ..2, 7, 8,] : Off Off<br/pre> 12, 13, 15, 16 || DGND || Ground || |-|3 || DSI_D1M || Data1 - || ==== SPI NOR flash ====|-|4 || DSI_CLOCK0M || Clock Dip- ||switch configuration:|-|5 || DSI_D1P || Data1 + ||<pre>|-S5[1..8] : On On Off Off On On Off Off |6 || DSI_CLOCK0P S6[1..8] : Off Off On On Off On On || Clock + ||On|-S7[1..8] : Off Off On Off Off Off On Off|9 || DSI_DOP|| Data0 + ||S8[1..8] : On Off On On Off On On On|-S9[1..2] : Off Off|10 || NVCC_AXEL_I</O_3.3V/1.8|| - ||pre>|-===Axel Lite===|11 || DSI_D0M|| Data0 In this case, it is required to use the [[AxelEVB- |||Lite-|14 |Adapter (AxelLite)| SW4_xV/1specific revision A adapter]] to plug the SoM.8V || Regarding the boot options, please refer to [[AxelEVB- |||Lite-Adapter_(AxelLite)#Revision_A_2|}this section]].