Difference between revisions of "AXEL Lite SOM/AXEL Lite Evaluation Kit/Interfaces and Connectors/UARTs"
(→UARTs interface) |
(→UARTs interface) (Tag: Visual edit) |
||
| Line 1: | Line 1: | ||
| − | <section begin=History/> | + | <section begin="History" /> |
{| style="border-collapse:collapse; " | {| style="border-collapse:collapse; " | ||
| − | !colspan="4" style="width:100%; text-align:left"; border-bottom:solid 2px #ededed"|History | + | ! 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"|Version | + | ! 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" |Version |
| − | !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" |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:#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"|1.0.0 | + | | 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" |1.0.0 |
| − | |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"|Oct 2020 | + | | 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" |Oct 2020 |
| − | |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 DESK 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" |First DESK release |
|} | |} | ||
| − | <section end=History/> | + | <section end="History" /> |
| − | <section begin=Body/> | + | <section begin="Body" /> |
==UARTs interface == | ==UARTs interface == | ||
| Line 21: | Line 21: | ||
The UARTs interface available on the Evaluation Kit are mapped to the following connectors: | The UARTs interface available on the Evaluation Kit are mapped to the following connectors: | ||
| − | * J25 is a 6x1x2. | + | * J25 is a 6x1x2.54mm horizontal socket header for the UART4 port. This is a Digilent Pmod™ Compatible connector for the UART Pmod™ Compatiblemodule (6-Pin Pmod™ Compatible Connector Digilent Pmod™ Interface Specification Type 4 UART) |
| Line 39: | Line 39: | ||
{| class="wikitable" | {| class="wikitable" | ||
| − | ! latexfontsize="scriptsize"| Pin# | + | ! latexfontsize="scriptsize" | Pin# |
| − | ! latexfontsize="scriptsize"| SOM Pin# | + | ! latexfontsize="scriptsize" | SOM Pin# |
| − | ! latexfontsize="scriptsize"| Pin name | + | ! latexfontsize="scriptsize" | Pin name |
| − | ! latexfontsize="scriptsize"| Pin function | + | ! latexfontsize="scriptsize" | Pin function |
| − | ! latexfontsize="scriptsize"| Pin Notes | + | ! latexfontsize="scriptsize" | Pin Notes |
|- | |- | ||
| 1 || J10.50 || PMOD_A0 || Clear to send || | | 1 || J10.50 || PMOD_A0 || Clear to send || | ||
| Line 61: | Line 61: | ||
{| class="wikitable" | {| class="wikitable" | ||
| − | ! latexfontsize="scriptsize"| Pin# | + | ! latexfontsize="scriptsize" | Pin# |
| − | ! latexfontsize="scriptsize"| SOM Pin# | + | ! latexfontsize="scriptsize" | SOM Pin# |
| − | ! latexfontsize="scriptsize"| Pin name | + | ! latexfontsize="scriptsize" | Pin name |
| − | ! latexfontsize="scriptsize"| RS-232 | + | ! latexfontsize="scriptsize" | RS-232 |
| − | ! latexfontsize="scriptsize"| RS-422 | + | ! latexfontsize="scriptsize" | RS-422 |
| − | ! latexfontsize="scriptsize"| RS-485 | + | ! latexfontsize="scriptsize" | RS-485 |
|- | |- | ||
| 1 || - || Not connected || Not connected || Not connected || Not connected | | 1 || - || Not connected || Not connected || Not connected || Not connected | ||
| Line 90: | Line 90: | ||
{| class="wikitable" | {| class="wikitable" | ||
| − | ! latexfontsize="scriptsize"| Jumper | + | ! latexfontsize="scriptsize" | Jumper |
| − | ! latexfontsize="scriptsize"| RS232 mode | + | ! latexfontsize="scriptsize" | RS232 mode |
| − | ! latexfontsize="scriptsize"| RS422 mode | + | ! latexfontsize="scriptsize" | RS422 mode |
| − | ! latexfontsize="scriptsize"| RS485 mode | + | ! latexfontsize="scriptsize" | RS485 mode |
|- | |- | ||
| 1-3 || open || open || closed | | 1-3 || open || open || closed | ||
Revision as of 15:12, 6 September 2021
| HOME | SOMs | SBCs | ToloMEO Embedded Assistant |  GET A QUOTE
|
 ONLINE HELPDESK
|
| Roadmap | IoT Services | ML/AI services | Embedded Design Services |
| History | |||
|---|---|---|---|
| Version | Issue Date | Notes | |
| 1.0.0 | Oct 2020 | First DESK release | |
Contents
UARTs interface[edit | edit source]
Description[edit | edit source]
The UARTs interface available on the Evaluation Kit 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 for the UART Pmod™ Compatiblemodule (6-Pin Pmod™ Compatible Connector Digilent Pmod™ Interface Specification Type 4 UART)
- J21 is a standard DB9 male connector for the configurable UART5 port. The board provides some configuration options for the selection of the UART mode (RS232/RS422/RS485 with auto-direction)
Signals[edit | edit source]
The following tables describes the interface signals
UART4[edit | edit source]
| Pin# | SOM Pin# | Pin name | Pin function | 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[edit | edit source]
| Pin# | SOM Pin# | Pin name | RS-232 | RS-422 | RS-485 |
|---|---|---|---|---|---|
| 1 | - | Not connected | Not connected | Not connected | Not connected |
| 2 | J10.95 | UART5_A | UART2 receive line | UART5_A | UART5_A |
| 3 | J10.93 | UART5_Y | UART2 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 | UART2 Request To Send | UART5_Z | UART5_B |
| 8 | J10.107 | UART5_B | UART2 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:
| Jumper | RS232 mode | RS422 mode | RS485 mode |
|---|---|---|---|
| 1-3 | open | open | closed |
| 5-7 | open | closed | open |
| 9-11 | open | closed | open |
| 2-4 | open | open | closed |
| 6-8 | open | closed | closed |
| 10-12 | open | closed | closed |
| 13-15 | open | open | closed |
| 14-16 | open | open | closed |
Device mapping[edit | edit source]
- UART4 is mapped to
/dev/ttymxc3device in Linux - UART5 is mapped to
/dev/ttymxc4device in Linux
Device usage[edit | edit source]
- UART4 can be used with a PMOD adapter or with a TTL peripheral
- UART5 is a MultiProtocol that support (after harware Jumper configuration) the RS232, RS4222 or RS485 protocols. The related device tree file has to be properly configured too for enabling the GPIO transceiver configuration.
