P0071 Terasic Technologies Inc, P0071 Datasheet - Page 21
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P0071
Manufacturer Part Number
P0071
Description
TPAD MULTIMEDIADEVELOPMENT KIT
Manufacturer
Terasic Technologies Inc
Series
tPAD, Cyclone®IVr
Specifications of P0071
Main Purpose
Reference Design, Tablet
Embedded
Yes, FPGA / CPLD
Utilized Ic / Part
EP4CE115
Primary Attributes
8-Inch TFT LCD, LED Backlight
Secondary Attributes
5-Megapixel Digital Image Sensor
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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A 16-bit word can be written into the SDRAM by entering the address of the desired location,
specifying the data to be written, and pressing the Write button. Contents of the location can be read
by pressing the Read button.
into offset address 200, followed by reading the same location.
The Sequential Write function of the Control Panel is used to write the contents of a file into the
SDRAM as follows:
1.
2.
3.
4.
The Control Panel also supports loading files with a .hex extension. Files with a .hex extension are
ASCII text files that specify memory values using ASCII characters to represent hexadecimal
values. For example, a file containing the line
0123456789ABCDEF
Defines eight 8-bit values: 01, 23, 45, 67, 89, AB, CD, EF. These values will be loaded
consecutively into the memory.
Specify the starting address in the Address box.
Specify the number of bytes to be written in the Length box. If the entire file is to be loaded,
then a checkmark may be placed in the File Length box instead of giving the number of bytes.
To initiate the writing process, click on the Write a File to Memory button.
When the Control Panel responds with the standard Windows dialog box asking for the source
file, specify the desired file in the usual manner.
Figure 3-7
Figure 3-7 Accessing the SDRAM
depicts the result of writing the hexadecimal value 06CA
20
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