Difference between revisions of "RIALTO SBC/Interfaces and Connectors/UARTs"
(Created page with "<section begin="History" /> {| style="border-collapse:collapse; " ! colspan="4" style="width:100%; text-align:left" ; border-bottom:solid 2px #ededed" |History |- ! style="bo...") |
|||
| Line 7: | Line 7: | ||
! 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:#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:#ededed; padding:5px; color:#000000" |{{oldid|17305|17305}} | |
| − | + | ! style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#ededed; padding:5px; color:#000000" |10/01/2023 | |
| − | + | ! style="border-left:solid 2px #73B2C7; border-right:solid 2px #73B2C7;border-top:solid 2px #73B2C7; border-bottom:solid 2px #73B2C7; background-color:#ededed; padding:5px; color:#000000" |First release | |
|- | |- | ||
|- | |- | ||
Revision as of 09:43, 10 January 2023
| HOME | SOMs | SBCs | ToloMEO Embedded Assistant |  GET A QUOTE
|
 ONLINE HELPDESK
|
| Roadmap | IoT Services | ML/AI services | Embedded Design Services |
| History | |||
|---|---|---|---|
| ID# | Issue Date | Notes | |
| 10/01/2023 | First release | ||
Contents
UARTs interface[edit | edit source]
Description[edit | edit source]
The UARTs interfaces available on the RIALTO SBC are mapped to the following connectors:
- J42 is a Phoenix 4x1x2.54mm pin header connector. On this connector is mapped the
consoleinterface (UART1).
- J66 is a Phoenix 282837-3 3x50.8mm connector. On this connector are mapped these instances: UART3 or CAN.
- J67 is a Phoenix 282837-3 3x50.8mm connector. On this connector are mapped these instances: UART3 or UART8.
Signals[edit | edit source]
The following tables describe the interfaces signals:
J42[edit | edit source]
| Pin# | Pin name | Pin function | Pin Notes |
|---|---|---|---|
| 1 | TX | UART1_TX | LVTTL signal |
| 2 | RX | UART1_RX | LVTTL signal |
| 3 | VDD | 3V3 | powered by internal PMIC |
| 4 | DGND | GND |
J66[edit | edit source]
| Pin# | Pin name | Pin function | Pin Notes |
|---|---|---|---|
| 1 | EXT1_P1 | RS232_RX or CAN_P | optional RS232 or CAN port |
| 2 | EXT1_P2 | RS232_TX or CAN_M | optional RS232 or CAN port |
| 3 | EXT1_GND | GND | connected to DGND directly or to PCN GND ring via RC filter |
J67[edit | edit source]
| Pin# | Pin name | Pin function | Pin Notes |
|---|---|---|---|
| 1 | EXT2_P1 | RS232_RX or RS485_A | optional RS232 or RS485 port |
| 2 | EXT2_P2 | RS232_TX or RS485_B | optional RS232 or RS485 port |
| 3 | EXT2_GND | GND | connected to DGND directly or to PCN GND ring via RC filter |
Device mapping[edit | edit source]
UART1 is mapped to /dev/ttymxc0 device in Linux. The peripheral is used as the default serial console, both for the bootloader and the kernel.
RS232 is UART3 and it is mapped to /dev/ttymxc2 device in Linux
RS485 is UART8 and it is mapped to /dev/ttymxc7 device in Linux
CAN is FLEXCAN1 and it is mapped to can0 device in Linux
Device usage[edit | edit source]
The RS232, RS485 and CAN use the standard protocols.
