!colspan="4" style="width:100%; text-align:left"; border-bottom:solid 2px #ededed"|History
|-
!style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#73B2C7; padding:5px; color:white"|VersionID#
!style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#73B2C7; padding:5px; color:white"|Issue Date
!style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#73B2C7; padding:5px; color:white"|Notes
|-
|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|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:#edf8fbededed; padding:5px; color:#000000"|TBD{{oldid|-17266|-17266}}|!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"|[TBD_link X.Y.Z]09/01/2023|!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"|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:#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:#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:#edf8fb; padding:5px; color:#000000"|...|-First documentation release
|}
<section end=History/>
==JTAG interface ==
''TBD: sostituire le sezioni con le informazioni sull'uso della periferica e del suo connettore''
''Nell'esempio di seguito c'è la descrizione dell'interfaccia UART/console''
=== Description ===
The JTAG interface available signals are routed to a dedicated connector on the Evaluation Kit at the connector ''TBD:Jxxx''RIALTO SBC PCB.
''Jxx'' The connector is a ''TBD:placed near the J60 mezzanine connector-type'' header and J46 WiFi connector for (please see the RS232 two-wires UART3 port, used for debug purposes (bootloader and operating system serial consolepicture below).
[[File:{{{nomeRIALTO-som}}-EVBSBC-JTAG-connector.png|thumb|center|500px|JTAG connector]]
===Signals ===
{| class="wikitable"
! latexfontsize="scriptsize"| Pin#
! latexfontsize="scriptsize"| SOM Pin#
! latexfontsize="scriptsize"| Pin name
! latexfontsize="scriptsize"| Pin functionARM-20 JTAG! latexfontsize="scriptsize"| Pin Notes
|-
|1| DGND| Ground| 4,26,8,410,612,14,716,818,1020| -| N.A.2| JTAG_TCK| N.C.9| Not connected
|-
| 3
| J1.189JTAG_TMS| RS232_RX| Receive line7
|
|-
| 4
| JTAG_TDO
| 13
|
|-
| 5
| JTAG_TDI
| 5
|
|-
| 6
| JTAG_nTRST
| 3
| J1.187keep the possibility to be unconnected| RS232_TX-| Transmit line7| CPU_PORn| 15| keep the possibility to be unconnected|-| 8| JTAG_MOD
|
| Internally used as GPIO for USB OTG power enable in Host mode
|-
| 9
| -n.c.| DGND| Ground
|
|-
| 10
| JTAG_VREF
| 1
| 3V3 internal pull-up
|}
=== Device mapping ===
UART3 is mapped to <code>/dev/ttymxc2</code> device in Linux. The peripheral is used as the default serial console, both for the bootloader and the kernel.
=== Device usage ===
To connect to the debug serial port:
# connect the DB9 adapter bracket to the J22 connector on the SBCX board
# connect a serial cable between DB9 connector and PC COM port through a NULL-modem cable (not provided)
# start your favorite terminal emulator software on PC (eg: PuTTY); communication parameters are: 115200,N,8,1
----
[[Category:RIALTO SBC]]