Altera DE2 Board, Руководство по началу работы

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Lab 7: DE2 Control Panel
70
11-4
The SDRAM / SRAM Controller and Programmer
The DE2 Control Panel can serves as a SDRAM Programmer. Users can
read/write a 16-bit word from/to the SDRAM, write a binary file to the SDRAM,
load the content of the SDRAM to a file.
DE2 Control Panel can also controls SRAM using the identical method.
Follow the steps to exercise the operations to the SDRAM:
1. Please refer to Figure 11.8. Click on Button SDRAM to switch to SDRAM
Control Page.
2. Key in a random address (1688 in the example) and value in wDATA field
(abcd in the example ). Click on Write will write 0xabcd to address 1688.
3. Key in an address and click on Read. The rDATA will display the data read
back from the address specified.
4. You can also load a file into SDRAM by using Sequential Write function.
Please refer to Figure 11.8. You have to specify the starting address and the
length (in bytes) to be written into the SDRAM.
5. You can click on “File Length” checkbox to indicate that you want to load
entire file into the SDRAM. Then Click on Write File to SDRAM to choose
the file to be loaded into the SDRAM.
6. Sequential Read function allows you to read the content in SDRAM and
save into a file. Figure 11.8 shows the screen capture of the Sequential
Read. You can also specify the starting address and the length (in bytes) to
read from the SDRAM. By clicking on the “Entire SDRAM” checkbox, you
are indicating that you would like to load entire SDRAM (8Mbyte) into a file
specified by you.