TS-7180 Daughter Card Interface

From Technologic Systems Manuals

The TS-7180 Daughter Card Interface (HD1) may be used to connect a variety of off-board peripherals. The interface includes pins for the following:

  • I2C
  • SPI
  • USB OTG
  • PoE
  • UART (TTL levels)

The table below shows the pinout of the header.

Pin # Function
1 PWR+
2 POE_78
3 GND
4 POE_45
5 GND
6 POE_TX
7 DIO
8 POE_RX
9 I2C_DAT
10 UART_RXD
11 USB-
12 UART_TXD
13 USB+
14 I2C_CLK
15 +5V
16 +5V
17 SPI_MISO
18 SPI_MOSI
19 3.3V
20 SPI_CLK
Note: The default device-tree has an entry for the SPI interface, which will appear in linux as "/dev/spidev2.1".

The UART appears as "/dev/ttymxc7" (when enabled in the FPGA Syscon registers).