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CRC jam file

Altera_Forum
Honored Contributor II
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Hi, 

Using the jam file below 

------------------------------- 

NOTE MAX_FREQ "10000000"; 

ACTION CONFIG_IO = EXECUTE; 

PROCEDURE EXECUTE; 

BOOLEAN X = 0; 

DRSTOP IDLE; 

IRSTOP IDLE; 

STATE IDLE; 

IRSCAN 10, $015; 

DRSCAN 32, $FFFFFFFF; 

STATE IDLE; 

EXIT 0; 

ENDPROC; 

----------------------------- 

I simulated the above jam file using quartus_jli.exe (command line jam player), it gave me output as 

---------------------------------------------------- 

Expected CRC not found, actual CRC value = AB60 

Export: key = "JAM_STATEMENT_BUFFER_SIZE", value = 1051 

NOTE "MAX_FREQ" = "10000000" 

Exit code = 0.. Success 

----------------------------------------------------- 

Using the above JAM file, I modified the line# 9 to an arbitrary number ("1FFFFFFF1"), to change the CRC checksum value and i got the output as  

----------------------------------------------------- 

Expected CRC not found, actual CRC value = 493F 

Export: key = "JAM_STATEMENT_BUFFER_SIZE", value = 1051 

NOTE "MAX_FREQ" = "10000000" 

Exit code = 0.. Success 

---------------------------------------------------- 

In this simulation, I am not able to understand the "Expected CRC not found" instruction.  

 

Can anyone please help me about this problem and suggest me the solution. 

 

Thankyou in advance
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