User manual

TMCM-1160 V1.01 Hardware Manual (Rev. 1.01 / 2012-JUL-27) 16
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3.2.7 Mini-USB Connector
A 5-pin standard mini-USB connector is available on board. This module supports USB 2.0 full-speed
(12Mbit/s) connections.
Please note:
- On-board digital core logic (mainly processor and EEPROM) will be powered via USB in case no
other supply is connected. The USB connection might be used to set parameters / download
TMCL programs or perform firmware updates while power supply for the module (and the rest of
the machine) has been switched off or is not connected.
- CAN interface will be de-activated as soon as USB is connected due to internal sharing of
hardware resources.
1
5
Pin
Label
Description
1
VBUS
+5V supply from host
2
D-
Data –
3
D+
Data +
4
ID
Not connected
5
GND
Module ground (system and signal ground)
Table 3.6 Mini USB connector
For remote control and communication with a host system the TMCM-1160 provides a USB 2.0 full-speed
(12Mbit/s) interface (mini-USB connector). As soon as a USB-Host is connected the module will accept
commands via USB.
USB BUS POWERED OPERATION MODE
The TMCM-1160 supports both, USB self powered operation (when an external power is supplied via the
power supply connector) and USB bus powered operation, (no external power supply via power supply
connector).
On-board digital core logic will be powered via USB in case no other supply is connected (USB bus
powered operation). The digital core logic comprehends the microcontroller itself and also the EEPROM.
The USB bus powered operation mode has been implemented to enable configuration, parameter
settings, read-outs, firmware updates, etc. by just connecting an USB cable between module and host PC.
No additional cabling or external devices (e.g. power supply) are required.
Please note that the module might draw current from the USB +5 V bus supply even in USB self powered
operation depending on the voltage level of this supply.
Motor movements are not possible in this operation mode. Therefore, connect the power connector and
change to USB self powered operation mode.