TS-RF2-AERO
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| Documents | |
|---|---|
| Schematic | |
| AC4790 Product Page | |
| AC4790 Datasheet | |
| AC4790 User Manual |
Overview
The TS-RF2-Aero provides a UART connecti over PC104 to the AeroComm/Laird AC4790 RF device.
Driver
The driver is available here. You can install the module to your kernel module directory (usually /lib/modules/<kernel version>) and use modprobe, or run 'insmod ts-rf2.ko' with the absolute path of the module. If you receive a message that the symbols are invalid, you will have to compile that module with your kernel sources. The sources are available in the same directory as the binaries.
Once loaded, a new TS-UART device file will appear in /dev. The exact name of this file will depend on the the number of TS-UARTs already loaded on your system, but the name of the driver will be of the form ttyTSx for the TS-72XX series, or from tttsx where x is an integer denoting the order in which the driver was loaded. You can run dmesg after loading the driver to see where it is created.
Getting Started
Communication with the Aerocomm device defaults to transparent serial mode. If you have two units operational with a terminal emulation program running on both unit you should be able to verify operation by pointing both programs to use the appropriate ttyTS entry, and then typing on either side. The datasheet will specify the baud rate range, but make sure you enable hardware flow control. Please consult the Aerocomm data sheet for more information on Aerocomm specific features which can be invoked using AT commands.
IO Address Selection
| JP1 | JP2 | Address |
|---|---|---|
| OFF | OFF | 100 |
| ON | OFF | 110 |
| OFF | ON | 200 |
| ON | ON | 210 |
IRQ Selection
| JP3 | JP4 | IRQ Number |
|---|---|---|
| OFF | OFF | IRQs disabled |
| ON | OFF | IRQ6 |
| OFF | ON | IRQ7 |
| ON | ON | IRQ7 With sharing |
With both JP3 and JP4 on, IRQ sharing is enabled for IRQ 7. This means instead of the IRQ7 signal being actively driven 0 or 1 depending on IRQ state, it goes high-Z when the IRQ is not asserted. For this to work, there should be pull-downs on the IRQ to keep the IRQ de-asserted while in high-Z.
PLD Register Map
| Address | Bit | Description | Access | Notes |
|---|---|---|---|---|
| Base + 0 | 7:0 | Board Identifier | Read Only | Returns identifier 0x8e |
| Base + 1 | 7 | JP4 | Read Only | |
| 6 | JP3 | |||
| 5-0 | PLD Revision | |||
| Base + 2 | 7:0 | TSUART Stat Register | Read/Write | Used by tsuart driver |
| Base + 3 | 7:0 | UART RXDAT/TXDAT register | Used by tsuart driver | |
| Base + 4 | 7-4 | Reserved | N/A | |
| 3 | CF Presence | Read Only | ||
| 2 | Aerocomm CMD# | Read/Write | ||
| 1 | Aerocomm Test | |||
| 0 | XBee DTR | |||
| Base + 5 | 7:0 | Reserved | N/A | |
| Base + 6 | 7:0 | CF aux reg #0 | Read/Write | |
| Base + 7 | 7:0 | CF aux reg #0 | ||
| Base + 0x8-0xf | 7:0 | CF IDE regs #0 - #7 |
TSUART Stat Register
| Bit | Access | Description |
|---|---|---|
| 0 | Read Only | TBRE - Transmit buffer empty |
| 1 | DR - Receive data ready | |
| 2 | OERR - Overflow Error | |
| 3 | Read/Write | CTS - UART Clear-to-send |
| 4 | RTS - UART request-to-send | |
| 7:5 | Mode, Baud rate |
| Value | Description |
|---|---|
| 0 | 115200 8N1 |
| 1 | 57600 8N1 |
| 2 | 38400 8N1 |
| 3 | 19200 8N1 |
| 4 | 9600 8N1 |
| 5 | 4800 8N1 |
| 6 | 2400 8N1 |
| 7 | UART OFF, IRQ disabled |
Usage with 3rd party devices
Please note that while efforts are made to follow the PC/104 specification this peripheral is not tested with third party SBCs or connected peripherals. This card is not guaranteed to operate as intended when third party PC104 peripherals or SBCs are connected.