set_false_path -from {ModA:ModA_inst|reg_src[144..244]} -to {ModB:ModB_inst|*} ?

set TOTAL_CHANNELS 8
for {set i 0} {$i < $TOTAL_CHANNELS} {incr i} {
   create_clock -period 12.345 -name "TS_IN_CLK_${i}" "]
   set_input_delay -min 0.00  -clock  "]
   set_input_delay -max 0.00  -clock  "]
   set_input_delay -min 0.00  -clock  "]
   set_input_delay -max 0.00  -clock  "]
}

Thanks. I have been trying to get a for loop working but could not figure out the correct syntax as the TCL syntax for me is a complete mystery!

set maxval 158
for {set i 0} {$i < $maxval} {incr i} 
{
	set_false_path -from {CommandRegisters:CommandRegisters_inst|reg_command_bits} -to {MetaDataGenerator:MetaDataGenerator_inst|*}
}

Critical Warning (332008): Read_sdc failed due to errors in the SDC file

Hi, Yes TCL is "bizarre" :-)

set maxval 158
for {set i 0} {$i < $maxval} {incr i} {
	set_false_path -from {CommandRegisters:CommandRegisters_inst|reg_command_bits} -to {MetaDataGenerator:MetaDataGenerator_inst|*}
}

$ sign out of {}. Not {$i}, but ${i} instead. Plus beware of new lines...

Thanks for the info. It still doesn't work correctly. My SDC is now this:

set maxval 158
for {set i 0} {$i < $maxval} {incr i} {
	set_false_path -from {CommandRegisters:CommandRegisters_inst|reg_command_bits} -to {MetaDataGenerator:MetaDataGenerator_inst|*}
}

Warning (332174): Ignored filter at PCIEA_Test_1.sdc(73): CommandRegisters:CommandRegisters_inst|reg_command_bits could not be matched with a clock or keeper or register or port or pin or cell or partition
Warning (332049): Ignored set_false_path at PCIEA_Test_1.sdc(73): Argument <from> is not an object ID
	Info (332050): set_false_path -from {CommandRegisters:CommandRegisters_inst|reg_command_bits} -to {MetaDataGenerator:MetaDataGenerator_inst|*}

Tcl will not interpret stuff inside {} ... try

set_false_path -from CommandRegisters:CommandRegisters_inst|reg_command_bits -to {MetaDataGenerator:MetaDataGenerator_inst|*}

set_false_path -from "CommandRegisters:CommandRegisters_inst|reg_command_bits" -to {MetaDataGenerator:MetaDataGenerator_inst|*}

Thanks. This version worked:

set_false_path -from CommandRegisters:CommandRegisters_inst|reg_command_bits -to {MetaDataGenerator:MetaDataGenerator_inst|*}

set_false_path -from CommandRegisters:CommandRegisters_inst|reg_command_bits -to {MetaDataGenerator:MetaDataGenerator_inst|*}