<section begin="History" />

|style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|X.Y.Z{{oldid|style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"14467|Month Year2021/09/07}}|style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|TBDFirst EVK release

|-|style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|[TBD_link X.Y.Z]|style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|Month Year|style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|TBD|-|! style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fbededed; padding:5px; color:#000000"|...2022/05/27|style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fb; padding:5px; color:#000000"|...|! style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#edf8fbededed; padding:5px; color:#000000"|...Add GPIO setting reference

<section end="History" /><section begin="Body" />

The UARTs interface available on the Evaluation Kit at are mapped to the following connectors: * J25 is a 6x1x2.54mm horizontal socket header for the UART4 port. This is a Digilent Pmod™ Compatible connector ''TBDfor the UART Pmod™ Compatiblemodule (6-Pin Pmod™ Compatible Connector Digilent Pmod™ Interface Specification Type 4 UART)  [[File:Jxxx''AXEL Lite-EVB-PMOD-connector. png|thumb|center| 500px|PMOD configuration]] 

''Jxx'' * J21 is a ''TBD:connector-type'' header standard DB9 male connector for the RS232 two-wires UART3 configurable UART5 port, used . The board provides some configuration options for debug purposes the selection of the UART mode (bootloader and operating system serial consoleRS232/RS422/RS485 with auto-direction)  [[File:AXEL Lite-EVB-DB9-connector.png|thumb|center| 500px|DB9 configuration]]

The following table tables describes the interface signals ==== UART4 ==== {| class="wikitable" ! latexfontsize="scriptsize" | Pin#! latexfontsize="scriptsize" | SOM Pin#! latexfontsize="scriptsize" | Pin name! latexfontsize="scriptsize" | Pin function! latexfontsize="scriptsize" | Pin Notes|-| 1 || J10.50 || PMOD_A0 || Clear to send |||-| 2 || J10.89 || PMOD_A1 || Transmit data |||-| 3 || J10.91 || PMOD_A2 || Receive data || |-| 4 || J10.40 || PMOD_A3 || Request to send || |-| 5 || - || DGND || Ground || |-| 6 || - || 3V3 || +3.3 V || |} ==== UART5 ==== {| class="wikitable" ! latexfontsize="scriptsize" | Pin#! latexfontsize="scriptsize" | SOM Pin#! latexfontsize="scriptsize" | Pin name! latexfontsize="scriptsize" | RS-232! latexfontsize="scriptsize" | RS-422! latexfontsize="scriptsize" | RS-485|-| 1 || - || Not connected || Not connected || Not connected || Not connected|-| 2 || J10.95 || UART5_A || UART5 receive line || UART5_A || UART5_A|-| 3 || J10.93 || UART5_Y || UART5 transmit line || UART5_Y || UART5_A|-| 4 || - || Not connected || Not connected || Not connected || Not connected|-| 5 || - || DGND || Ground || Ground || Ground |-| 6 || - || Not connected || Not connected || Not connected || Not connected|-| 7 || J10.105 || UART5_Z || UART5 Request To Send || UART5_Z || UART5_B|-| 8 || J10.107 || UART5_B || UART5 Clear To Send || UART5_B || UART5_B|-| 9 || - || Not connected || Not connected || Not connected || Not connected|} The J19 and J20 jumpers are used to configure the UART mode, as reported below:

! latexfontsize="scriptsize"| Pin#Jumper! latexfontsize="scriptsize"| SOM Pin#RS232 mode! latexfontsize="scriptsize"| Pin nameRS422 mode! latexfontsize="scriptsize"| Pin functionRS485 mode! latexfontsize="scriptsize"| Pin Notes-| 1-3 || open || open || closed|-| 5-7 || open || closed || open|-| 9-11 || open || closed || open|-| 2-4 || open || open || closed

|1,2,4,6,,7,-8,10| -| N.A.open || closed | N.C.| Not connectedclosed

| 310-12 | J1.189| RS232_RXopen | Receive line| closed || closed

| 313-15 | J1.187| RS232_TXopen | Transmit line| open || closed

| 914-16 || open | -| DGNDopen | Ground| closed

UART3 * UART4 is mapped to <code>/dev/ttymxc2ttymxc3</code> device in Linux. The peripheral * UART5 is used as the default serial console, both for the bootloader and the kernel.mapped to <code>/dev/ttymxc4</code> device in Linux

To connect to the debug serial port: # connect the DB9 * UART4 can be used with a PMOD adapter bracket to the J22 connector on the SBCX boardor with a TTL peripheral# connect a serial cable between DB9 connector and PC COM port through * UART5 is a NULL-modem cable MultiProtocol that support (not providedafter harware Jumper configuration)# start your favorite terminal emulator software on PC (eg: PuTTY); communication parameters are: 115200the RS232,NRS4222 or RS485 protocols. The related ''device tree file'' has to be properly configured too for enabling the GPIO transceiver configuration,8,1see [[DESK-MX6-L/Pheripherals/UART#Configuring_the_RS232.2FRS485_mode | Configuring the RS232/RS485 mode]]