?? mem_test.txt
字號:
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Mem_test Software Application
Revision 1.00
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Application Summary:
This program checks the memory locations B0, B1, B2, and external
data memory of the F240 EVM Development Board. This program checks
the memory locations using the "checker board" method (i.e. storing
5555h in a location, then AAAAh). By using the "checker board"
method, this ensures that there is not any leakage of value between
adjacent bits.
The LEDs are used to indicate the results of the test.
The LEDs flash according to the results.
1. Start flash - Even LEDs (2,4,6,8)
then odd LEDs (1,3,5,7)
2. B0 flash
3. B1 flash
4. B2 flash
5. Data flash
LEDS DS1-DS4 = Okay; DS5-DS8 = Not Okay
Errors per block can be viewed in variables
B0_ERRORS, B1_ERRORS, B2_ERRORS, DATA_ERRORS
by using a watch window.
If an error does occur, the words in memory locations are set
HIGH if it fails the test; LOW if it passes test
Thus, by using a memory window, one can find the location of the
word that failed the test.
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