TS-7180 FPGA

From Technologic Systems Manuals

The TS-7180 FPGA registers are accessed over I2C. The supplied 'tshwctl' utility may be used to access these registers; run 'tshwctl -h' to see how to use it.

The FPGA is available at I2C addresses 0x28-0x2f. First write the address which is 16-bits, followed by the data which is 8-bits.

The tables below list all the registers and their functions.

FPGA Registers
Address Bits Description
0-43 7:3 Reserved (Write 0)
2 GPIOn Input Data
1 GPIOn Output Data
0 GPIOn Output Enable
307 7:3 Reserved (Write 0)
2:0 Cell-modem uart selector
Value Function
0 Leave disconnected
1 Use UART3 (ttymxc2)
2 Use UART4 (ttymxc3)
3 Use UART6 (ttymxc5)
4 Use UART7 (ttymxc6)
5 Use UART8 (ttymxc7)
308 7:3 Reserved (Write 0)
2:0 HD1 uart selector
Value Function
0 Leave disconnected
1 Use UART3 (ttymxc2)
2 Use UART4 (ttymxc3)
3 Use UART6 (ttymxc5)
4 Use UART7 (ttymxc6)
5 Use UART8 (ttymxc7)
309 0 PWM control[1]
  1. Write 1 to this address to route the cpu PWM to DIO_1

In the above table the GPIO uses are listed in the table below.

FPGA GPIO
IO Number Pad Direction
0 WIFI_RESET# OUT
1 EN_WIFI_PWR OUT
2 EN_YEL_LED# OUT
3 EN_GREEN_LED# OUT
4 EN_RED_LED# OUT
5 EN_BLUE_LED# OUT
6 EN_CL_1 OUT
7 EN_CL_2 OUT
8 EN_CL_3 OUT
9 EN_CL_4 OUT
10 EN_ADC1_10V OUT
11 EN_ADC2_10V OUT
12 EN_ADC3_10V OUT
13 EN_ADC4_10V OUT
14 EN_SD_POWER OUT
15 EN_USB_HOST_5V OUT
16 EN_OFF_BD_5V OUT
17 EN_CELL_MODEM_PWR OUT
18 EN_NIMBEL_3.3V OUT
19 EN_GPS_PWR# OUT
20 EN_CAN_XVR# OUT
21 EN_232_XVR OUT
22 EN_LS_OUT_1 OUT
23 EN_LS_OUT_2 OUT
24 EN_LS_OUT_3 OUT
25 EN_LS_OUT_4 OUT
26 EN_LS_OUT_5 OUT
27 EN_LS_OUT_6 OUT
28 EN_LS_OUT_7 OUT
29 Unused n/a
30 Unused n/a
31 Unused n/a
32 DIG_IN_1 IN
33 DIG_IN_2 IN
34 DIG_IN_3 IN
35 DIG_IN_4 IN
36 SD_BOOT_JMP# IN
37 DIO_IN_1 IN
38 DIO_IN_2 IN
39 DIO_IN_3 IN
40 DIO_IN_4 IN
41 DIO_IN_5 IN
42 DIO_IN_6 IN
43 DIO_IN_7 IN