Data Sheet

TX pin configuration
Offset 0x3D
Type 8-bit
Data
• Bits 0–3: Pin function:
◦ 0: Default (see below)
◦ 1: User I/O
◦ 2: User input
◦ 4: TX (serial transmit line)
◦ 6: Encoder input
◦ 7: Kill switch
• Bits 4–5: reserved, should be 0
• Bit 6: Enable analog readings
• Bit 7: Ignored (TX is always pulled up)
Default 0
Settings
file
tx_config
Settings
file data
Space-separated list including a subset of pin options ( analog and active_high ) and
one pin function: default , user_io , user_input , serial (TX), encoder , or
kill_switch .
Tic
Control
Center
Advanced settings tab, Pin configuration box, TX
This byte contains most of the configuration of the TX pin, as described in Section 5.5.
If the pin function is set to “Default”, then the Tic will ignore all of the options set in this byte and just
use default settings. The default settings for TX depend on the control mode: in an encoder control
mode, TX is configured as an encoder input, while in all other control modes, TX is used as the serial
transmit line.
Note that the settings file has all of the TX configuration options on one line, but in the Tic’s EEPROM,
those settings are stored in multiple places: the TX pin configuration byte, the switch polarity map byte,
and the kill switch map byte.
Tic Stepper Motor Controller User’s Guide © 2001–2018 Pololu Corporation
6. Setting reference Page 99 of 150