tcl Variablen Inhalt (Pfad übergeben)

Hallo Leute,

ich versuche gerade bei Vivado die .bit Datei nach dem erstellen in die 
.mcs umzuwandeln.

Leider funktioniert das Skript nicht.

1

#finde den Pfad und schreibe diesen in orig_proj_dir

2

set orig_proj_dir [get_property directory [current_project]]

3

#gebe den Pfad aus

4

puts $orig_proj_dir

5

set orig_proj_dir "[file normalize "$orig_proj_dir/project_1.runs/impl_2/test.bit"]"

6

7

#gebe den Pfad aus

8

puts $orig_proj_dir

9

10

#bis hierhin funktioniert es eigentlich wie gedacht

11

#ab hier gehts schief

12

write_cfgmem  -format mcs -size 8 -interface SERIALx1 -loadbit {up 0x00000000 {$orig_proj_dir} } -force -file "C:/x/FW.mcs"

Wie kriegt man den Inhalt(Pfad) von orig_proj_dir an write_cfgmem 
übergeben??


Vivado Ausgabe:
source C:/x/create_MCS.tcl
# set orig_proj_dir [get_property directory [current_project]]
# puts $orig_proj_dir
C:/x/project_1
# set orig_proj_dir "[file normalize 
"$orig_proj_dir/project_1.runs/impl_2/test.bit"]"
# puts $orig_proj_dir
C:/x/project_1/project_1.runs/impl_2/test.bit
# write_cfgmem  -format mcs -size 8 -interface SERIALx1 -loadbit {up 
0x00000000 [$orig_proj_dir] } -force -file "C:/x/FW.mcs"
Command: write_cfgmem -format mcs -size 8 -interface SERIALx1 -loadbit 
{up 0x00000000 [$orig_proj_dir] } -force -file C:/x/FW.mcs
Creating config memory files...
Creating bitstream load up from address 0x00000000
Loading bitfile [$orig_proj_dir]
ERROR: [Bitstream 40-47] File [$orig_proj_dir] does not exist.
ERROR: [Bitstream 40-46] File [$orig_proj_dir] cannot be opened for 
input.
ERROR: [Writecfgmem 68-7] Could not load bitfile [$orig_proj_dir].
0 Infos, 0 Warnings, 0 Critical Warnings and 3 Errors encountered.
write_cfgmem failed
ERROR: [Common 17-39] 'write_cfgmem' failed due to earlier errors.

    while executing
"write_cfgmem  -format mcs -size 8 -interface SERIALx1 -loadbit {up 
0x00000000 [$orig_proj_dir] } -force -file "C:/x/FW.mcs""
    (file "C:/x/create_MCS.tcl" line 9)