P0071 Terasic Technologies Inc, P0071 Datasheet - Page 21

• 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

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