User Manual

TMC5031-EVAL Manual / Firmware V1.00 (Rev. 1.00 / 2013-FEB-22) 9
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3.1.3 Push Buttons: Reference Switches of Motor 2
The TMC5031-EVAL offers two push buttons for the reference switches of motor 2. As long as a button
is pushed the related reference switch of motor 2 is active.
Note that the ramp generator features dialogue of the evaluation software includes a switch mode tab
which shows the status of switches. The flags can be polled continuously.
REF_L2 REF_R2
Figure 3.5 Push buttons
Label
Description
REF L M2
This button is connected to pin 26 (REF_L2) of the TMC5031.
REF R M2
This button is connected to pin 25 (REF_R2) of the TMC5031.
Table 3.10 Push buttons
3.1.4 LEDs
The TMC5031-EVAL has three LEDs. Two of them indicate the normal operation of the board: the green
LED1 glows to show that the +5V supply is available. LED2 flashes constantly to indicate the 16MHz
heartbeat of the board. LED3 does not have a specific function and can be used customer specific.
LED2 LED3
LED1
Figure 3.6 LEDs
LEDS OF TMC5031-EVAL
Label
Color
Description
LED1
green
Glows, if +5V is available.
LED2
red
Heartbeat of the module. Flashes constantly per default.
LED3
red
Can be used customer specific.
Table 3.11 LEDs