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DRX-2<br />
26<br />
DRX-2<br />
SDRAM<br />
Nucleus Name DS_SDRAM_WriteRead<br />
Nucleus Number 400<br />
Description Check all data lines, address lines and memory locations of the SDRAM<br />
Technical - Test the databus<br />
- Test the addressbus<br />
- Test the integrity of the device itself (memory locations)<br />
Execution Time 11 seconds<br />
User Input None<br />
Error Number Description<br />
40000 The write-read test succeeded<br />
40001 The data bus contains an error<br />
40002 The address bus contains an error<br />
40003 The SDRAM itself contains an error<br />
Example DS:> 400<br />
040000:<br />
Test OK @<br />
Nucleus Name DS_SDRAM_WriteReadFast<br />
Nucleus Number 401<br />
Description Check all data lines and address lines of the SDRAM<br />
Technical - Test the databus<br />
- Test the addressbus<br />
Execution Time Less than 1 second<br />
User Input None<br />
Error Number Description<br />
40100 The write-read test succeeded<br />
40101 The data bus contains an error<br />
40102 The address bus contains an error<br />
Example DS:> 401<br />
040100:<br />
Test OK @<br />
Nucleus Name DS_SDRAM_Write<br />
Nucleus Number 402<br />
Description Write to a specific memory address<br />
Technical - Decode the user input and check its ranges and alignment on 4 bytes<br />
- Writethe data to theSDRAM<br />
Execution Time Less than 1 second<br />
User Input 1. The location that must be modified<br />
( SDRAM starts at address 0xA0000000 )<br />
2. The value to put on the selected location<br />
Error Number Description<br />
40200 Writing to the SDRAM succeeded<br />
40201 Writing to the SDRAM failed; Wrong user input<br />
40202 Address is not dividable by 4<br />
Example DS:> 402 0xa1000010 0xad112222<br />
040200:<br />
Test OK @
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