Atmel MCU Evaluation Kit AT32UC3L-EK AT32UC3L-EK Datenbogen

 

32150B-AVR-03/12 

The default hardware configuration of the user interface block implies that: 

•  There is no hardware to support debounce on the RST pushbutton: R36 is not 

mounted, so C4 has no effect. This was done to support the aWire programming 
and debugging interface (refer to Section 

 

) 

To enable the hardware debounce support on the RST pushbutton, mount the 0Ω 
R36 resistor (solder patch). 

To locate the R36 resistor mentioned here above, use the assembly top/bottom views 
provided in Section 

, 

A few test points covering the user interface block have been placed on the 
AT32UC3L-EK for the verification of important signals. 

Table 3-6. User interface block test points. 

TP1 

Input voltage on the Atmel AT32UC3L064 RESET_N pin, depending on the 
state of the RST pushbutton 

TP18 

Input voltage for the accelerometer. Should be 1.8V nominal 

TP15 

Output voltage on the accelerometer VoutZ pin 

TP16 

Output voltage on the accelerometer VoutY pin 

TP17 

Output voltage on the accelerometer VoutX pin 

TP19 

Input voltage on the AT32UC3L064 WAKE_N pin, depending on the state of 
the WAKE pushbutton 

TP20 

Voltage level on LED0 

TP21 

Voltage level on LED1 

TP22 

Voltage level on LED2 

TP23 

Voltage level on LED3 

To locate the test points mentioned here above, use the assembly top/bottom views 
provided in Section 

, 

The programming and debugging interface block of the AT32UC3L-EK provides the 
developer with a means to debug an application running on the AT32UC3L064.