Intel® Quartus® Prime Pro Edition User Guide: Debug Tools
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7.5.3.1. SLD Commands
|   Command  |  
        Arguments  |  
        Function  |  
     
|---|---|---|
| sld_access_ir |   <claim-path> <ir-value> <delay> (in µs)  |  
        Shifts the instruction value into the instruction register of the specified node. Returns the previous value of the instruction. If the <delay> parameter is non-zero, then the JTAG clock is paused for this length of time after the access.  |  
     
| sld_access_dr |   <service-path> <size_in_bits> <delay-in-µs>, <list_of_byte_values>  |  
        Shifts the byte values into the data register of the SLD node up to the size in bits specified. If the <delay> parameter is non-zero, then the JTAG clock is paused for at least this length of time after the access. Returns the previous contents of the data register.  |  
     
| sld_lock |   <service-path> <timeout-in-milliseconds>  |  
        Locks the SLD chain to guarantee exclusive access. Returns 0 if successful. If the SLD chain is already locked by another user, tries for <timeout>ms before returning a Tcl error. You can use the catch command if you want to handle the error.  |  
     
| sld_unlock |   <service-path>  |  
        Unlocks the SLD chain.  |