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(Новая страница: «==Technical specifications== thumb|UEXT pinout for [[Insulation-displacement connector|IDC connector<br/>(looking into connector on host bo…») |
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(не показано 6 промежуточных версий этого же участника) | |||
Строка 10: | Строка 10: | ||
==UEXT- | ==UEXT-connectors on the Wiren Board controller board== | ||
There are two UEXT-connectors on the board of Wiren Board controller v2.8. | |||
''' | '''But in the second connector, the MISO, MOSI, SCK lines are duplicated with the corresponding pins of the first connector. TxD and RXD lines are duplicated with RS-485 inputs.''' | ||
Строка 22: | Строка 22: | ||
! Pin !! Name !! I/O !! Logic !! - !! - | ! Pin !! Name !! I/O !! Logic !! - !! - | ||
|- | |- | ||
| 1 || 3. | | 1 || 3.3 V || S || S || +3.3 volt | ||
|- | |- | ||
| 2 || GND || S || S || Ground | | 2 || GND || S || S || Ground | ||
|- | |- | ||
| 3 || | | 3 || TxD || O || PP || style="background: cyan" | [[Debug UART/en]] Tx | ||
|- | |- | ||
| 4 || RXD || I || PP || style="background: cyan" | [Debug UART]] Rx | | 4 || RXD || I || PP || style="background: cyan" | [Debug UART/en]] Rx | ||
|- | |- | ||
| 5 || SCL || O || OD || style="background: orange" | | | 5 || SCL || O || OD || style="background: orange" | Hardware I<sup>2</sup>C, SCL | ||
|- | |- | ||
| 6 || SDA || I/O || OD || style="background: orange" | | | 6 || SDA || I/O || OD || style="background: orange" | Hardware I<sup>2</sup>C, SDA | ||
|- | |- | ||
| 7 || MISO || I || PP || style="background: yellow" | | | 7 || MISO || I || PP || style="background: yellow" | SPI Bus, MISO | ||
|- | |- | ||
| 8 || MOSI || O || PP || style="background: yellow" | | | 8 || MOSI || O || PP || style="background: yellow" | SPI Bus, MOSI | ||
|- | |- | ||
| 9 || SCK || O || PP || style="background: yellow" | | | 9 || SCK || O || PP || style="background: yellow" | SPI Bus, SCK | ||
|- | |- | ||
| 10 || SSEL || O || PP || style="background: yellow" | [[Работа с GPIO|GPIO]] [[Список GPIO|19]] || | | 10 || SSEL || O || PP || style="background: yellow" | [[Работа с GPIO/en|GPIO]] [[Список GPIO|19]] || SPI Bus, CS | ||
|} | |} | ||
Строка 49: | Строка 49: | ||
|+<big>UEXT2</big> | |+<big>UEXT2</big> | ||
|- | |- | ||
! Pin !! Name !! I/O !! Logic !! - !! - !! | ! Pin !! Name !! I/O !! Logic !! - !! - !! notes | ||
|- | |- | ||
| 1 || 3. | | 1 || 3.3 V || S || S || +3.3 volt | ||
|- | |- | ||
| 2 || GND || S || S || Ground | | 2 || GND || S || S || Ground | ||
|- | |- | ||
| 3 || TXD || O || PP || style="background: cyan" | [[SC16IS752|sc16is752 UART0]] Tx || || | | 3 || TXD || O || PP || style="background: cyan" | [[SC16IS752|sc16is752 UART0]] Tx || || parallel to RS-485 | ||
|- | |- | ||
| 4 || RXD || I || PP || style="background: cyan" | [[SC16IS752|sc16is752 UART0]] Rx || || | | 4 || RXD || I || PP || style="background: cyan" | [[SC16IS752|sc16is752 UART0]] Rx || || parallel to RS-485 | ||
|- | |- | ||
| 5 || SCL || O || OD || style="background: orange" | | | 5 || SCL || O || OD || style="background: orange" | [[Working with GPIO|GPIO]] [[GPIO list|51]] || I<sup>2</sup>C, SCL | ||
|- | |- | ||
| 6 || SDA || I/O || OD || style="background: orange" |[[ | | 6 || SDA || I/O || OD || style="background: orange" |[[Working with GPIO|GPIO]] [[GPIO list|53]] || I<sup>2</sup>C, SDA | ||
|- | |- | ||
| 7 || MISO || I || PP || style="background: yellow" | | | 7 || MISO || I || PP || style="background: yellow" | SPI Bus, MISO | ||
|- | |- | ||
| 8 || MOSI || O || PP || style="background: yellow" | | | 8 || MOSI || O || PP || style="background: yellow" | SPI Bus, MOSI | ||
|- | |- | ||
| 9 || SCK || O || PP || style="background: yellow" | | | 9 || SCK || O || PP || style="background: yellow" | SPI Bus, SCK | ||
|- | |- | ||
| 10 || SSEL || O || PP || style="background: yellow" | [[Работа с GPIO|GPIO]] [[Список GPIO|91]] || | | 10 || SSEL || O || PP || style="background: yellow" | [[Работа с GPIO/en|GPIO]] [[Список GPIO|91]] || SPI Bus, CS | ||
|} | |} | ||
Ports 3,4 (UART) of the UEXT2 connector are connected to the chip [[SC16IS752/en]] and are present only in modifications with this chip (GPS or RS-485 options). | |||
These ports are connected in parallel to the transceiver [[RS-485/en]] and cannot be used simultaneously with [[RS-485/en]]. | |||
== | ==Links== | ||
* [https://www.olimex.com/Products/Modules/UEXT/ UEXT connector webpage] | * [https://www.olimex.com/Products/Modules/UEXT/ UEXT connector webpage] | ||
* [https://www.olimex.com/Products/Modules/UEXT/resources/UEXT_rev_B.pdf UEXT specification] | * [https://www.olimex.com/Products/Modules/UEXT/resources/UEXT_rev_B.pdf UEXT specification] | ||
* [http://www.olimex.com OLIMEX Ltd] | * [http://www.olimex.com OLIMEX Ltd] |
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