Terasic De0-Nano, User Manual

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1. Specify the starting address in the Address box.
2. Specify the number of bytes to be copied into the file in the Length box. If the entire contents
of the SDRAM are to be copied (which involves all 32 Mbytes), then place a checkmark in the
Entire Memory box.
3. Press Load Memory Content to a File button.
4. When the Control Panel responds with the standard Windows dialog box asking for the
destination file, specify the desired file in the usual manner.
Users can use the similar way to access the EEPROM and EPCS. Please note that users need to
erase the EPCS before writing data to it.
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The Control Panel can be used to display the status of the Digital Accelerometer where it measures
the output of its 3-axis (X, Y, Z). The measurement range and resolution is set to default value ±2g
(acceleration of gravity) and 10bit twos complement respectively.
Figure 4-6 shows the current
digital accelerometer status of the DE0-Nano when Accelerometer tab is clicked. The units that are
displayed are the raw register values converted to decimal. The value in parentheses is the
gravitational acceleration values (mg) calculated from the register values according the formula.
Table 4-1 shows the rule.
Table 4-1 acceleration values convert rule
Register Value *Formula Result (mg)
0 0/511*2 0
1 1/511*2 3.9
2 2/511*2 6.8
17 17/511*2 66.4
511 511/511*2 2000