Chapter 3 Jumpers and Switches
3.9LIN / UART
There are two identical circuit blocks for LIN or RS232 connections. Each of the two
3.9.1 LIN-UART 0 (JP: 19, 21, 23, 25, 27, 28, 29, 31)
| Jumper |
| Setting |
|
| Description |
|
|
|
|
|
|
|
|
|
| JP21 |
|
| SIN0 is connected to RS232 transceiver | |||
| (RXD) |
|
| SIN0 is connected to LIN transceiver | |||
|
|
|
|
|
| ||
| JP25 |
|
|
| SOT0 is connected to RS232 transceiver |
| |
| (TXD) |
|
| SOT0 is connected to LIN transceiver | |||
| JP27 |
|
|
| X5 pin 2 is connected to RS232 transceiver |
| |
| (RS232/LIN) |
|
| X5 pin 2 is connected to LIN transceiver | |||
|
|
|
| ||||
|
|
|
|
|
|
| |
| JP19 |
| Closed |
|
| RTS and CTS of X5 are connected |
|
|
|
| Open |
|
| RTS and CTS of X5 are not connected | |
|
|
|
|
| |||
|
|
|
|
|
| ||
| JP23 |
|
| DTR signal (pin 6 of X5) is used as reset source | |||
| (DTR/RTS) |
|
| RTS signal (pin 7 of X5) is used as reset source | |||
|
|
|
| ||||
|
|
|
|
|
|
| |
| JP29 |
| Closed |
|
| LIN transceiver is enabled | |
| (LIN enable) |
| Open |
|
| LIN transceiver is disabled | |
|
|
|
|
| |||
| JP31 |
| Closed |
|
| ||
| (LIN master) |
| Open |
|
|
| |
|
|
|
|
|
| ||
| JP28 |
| Closed |
|
| LIN bus (X5 pin 1) is powered by the board | |
| (LIN Vbat) |
| Open |
|
| LIN bus (X5 pin 1) is not powered by the board |
|
|
|
|
|
|
| ||
|
|
|
| Table |
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