Configure the BOR level in file option.s

Please,

I found the following .s file :

;/*****************************************************************************/
;/* STM32L0xx_OPT.s: STM32L0xx Flash Option Bytes */
;/*****************************************************************************/
;/* <<< Use Configuration Wizard in Context Menu >>> */
;/*****************************************************************************/
;/* This file is part of the uVision/ARM development tools */
;/* Copyright (c) 2015 Keil - An ARM Company. */
;/* All rights reserved. */
;/*****************************************************************************/

; Option byte organization
;-------------------------
; Address [31:24] [23:16] [15:8] [7:0]
; 0x1FF80000 - nRDP - RDP (0xFF5500AA)
; 0x1FF80004 nUSER1 nUSER0 USER1 USER0 (0x7F8F8070)
; 0x1FF80008 nWRP1_1 nWRP1_0 WRP1_1 WRP1_0 (0xFFFF0000)
; 0x1FF8000C nWRP1_3 nWRP1_2 WRP1_3 WRP1_2 (0xFFFF0000)
; 0x1FF80010 nWRP2_1 nWRP2_0 WRP2_1 WRP2_0 (0xFFFF0000)

;// <e> Flash Option Bytes
FLASH_OPT EQU 1

;// <h> Flash Protection
;// Read protection is used to protect the software code stored in Flash memory
;// <o0> Read Protection Level
;// Level 0: No Protection
;// Level 1: Read Protection of Memories (memory read protection enabled!)
;// Level 2: Chip Protection (memory read protection enabled and all debug features disabled!)
;// Note: Mass Erase is performed when Level 1 is active and Level 0 is requested
;// <0xAA=> Level 0 (No Protection)
;// <0x00=> Level 1 (Read Protection of Memories)
;// <0xCC=> Level 2 (Chip Protection)
;// <o1.0> WPRMOD This bit selects between write and read protection of Flash program memory sectors.
;// <0=> Write Protection enable <1=> Read Protection enable
;// </h>
RDP0 EQU 0xAA
RDP1 EQU 0x00
nRDP0 EQU RDP0:EOR:0xFF
nRDP1 EQU RDP1:EOR:0xFF

;// <h> Flash Write/Read Protection
;// <h> WRP1_0..WRP1_3
;// <o0.0> Sector 0
;// <o0.1> Sector 1
;// <o0.2> Sector 2
;// <o0.3> Sector 3
;// <o0.4> Sector 4
;// <o0.5> Sector 5
;// <o0.6> Sector 6
;// <o0.7> Sector 7
;// <o1.0> Sector 8
;// <o1.1> Sector 9
;// <o1.2> Sector 10
;// <o1.3> Sector 11
;// <o1.4> Sector 12
;// <o1.5> Sector 13
;// <o1.6> Sector 14
;// <o1.7> Sector 15
;// <o2.0> Sector 16
;// <o2.1> Sector 17
;// <o2.2> Sector 18
;// <o2.3> Sector 19
;// <o2.4> Sector 20
;// <o2.5> Sector 21
;// <o2.6> Sector 22
;// <o2.7> Sector 23
;// <o3.0> Sector 24
;// <o3.1> Sector 25
;// <o3.2> Sector 25
;// <o3.3> Sector 27
;// <o3.4> Sector 28
;// <o3.5> Sector 29
;// <o3.6> Sector 30
;// <o3.7> Sector 31
;// </h>
WRP1_00 EQU 0x00
WRP1_01 EQU 0x00
WRP1_02 EQU 0x00
WRP1_03 EQU 0x00
nWRP1_00 EQU WRP1_00:EOR:0xFF
nWRP1_01 EQU WRP1_01:EOR:0xFF
nWRP1_02 EQU WRP1_02:EOR:0xFF
nWRP1_03 EQU WRP1_03:EOR:0xFF
; ;// <h> WRP2_0..WRP2_1
;// <o0.0> Sector 32
;// <o0.1> Sector 33
;// <o0.2> Sector 34
;// <o0.3> Sector 35
;// <o0.4> Sector 36
;// <o0.5> Sector 37
;// <o0.6> Sector 38
;// <o0.7> Sector 39
;// <o1.0> Sector 40
;// <o1.1> Sector 41
;// <o1.2> Sector 42
;// <o1.3> Sector 43
;// <o1.4> Sector 44
;// <o1.5> Sector 45
;// <o1.6> Sector 46
;// <o1.7> Sector 47
;// </h>
WRP2_00 EQU 0x00
WRP2_01 EQU 0x00
nWRP2_00 EQU WRP2_00:EOR:0xFF
nWRP2_01 EQU WRP2_01:EOR:0xFF
;// </h>

;// <h> User Configuration
;// <o0.0..3> BOR_LEV
;// < 0=> BOR OFF: Reset threshold level for 1.45V - 1.55V (power down only)
;// < 1=> BOR OFF: Reset threshold level for 1.45V - 1.55V (power down only)
;// < 2=> BOR OFF: Reset threshold level for 1.45V - 1.55V (power down only)
;// < 3=> BOR OFF: Reset threshold level for 1.45V - 1.55V (power down only)
;// < 4=> BOR OFF: Reset threshold level for 1.45V - 1.55V (power down only)
;// < 5=> BOR OFF: Reset threshold level for 1.45V - 1.55V (power down only)
;// < 6=> BOR OFF: Reset threshold level for 1.45V - 1.55V (power down only)
;// < 7=> BOR OFF: Reset threshold level for 1.45V - 1.55V (power down only)
;// < 8=> BOR LEVEL 0: Reset threshold level for 1.69V - 1.80V (power on)
;// < 9=> BOR LEVEL 1: Reset threshold level for 1.94V - 2.10V (power on)
;// <10=> BOR LEVEL 2: Reset threshold level for 2.30V - 2.49V (power on)
;// <11=> BOR LEVEL 3: Reset threshold level for 2.54V - 2.74V (power on)
;// <12=> BOR LEVEL 4: Reset threshold level for 2.77V - 3.00V (power on)
;// <o0.4> IWDG_SW
;// <0=> HW Watchdog <1=> SW Watchdog
;// <o0.5> nRST_STOP Generate Reset when entering STOP Mode
;// <0=> Enabled <1=> Disabled
;// <o0.6> nRST_STDBY Generate Reset when entering Standby Mode
;// <0=> Enabled <1=> Disabled
;// <o1.7> BOOT1 Together with input pad Boot0, this bit selects the boot source
;// <0=> Reset <1=> Set
;// </h>
USER0 EQU 0x70
USER1 EQU 0x80
nUSER0 EQU USER0:EOR:0xFF
nUSER1 EQU USER1:EOR:0xFF

;// </e>

IF FLASH_OPT <> 0 AREA |.ARM.__AT_0x1FF80000|, CODE, READONLY DCB RDP0, RDP1, nRDP0, nRDP1 DCB USER0, USER1, nUSER0, nUSER1 DCB WRP1_00, WRP1_01, nWRP1_00, nWRP1_01 DCB WRP1_02, WRP1_03, nWRP1_02, nWRP1_03 DCB WRP2_00, WRP2_01, nWRP2_00, nWRP2_01 ENDIF

END

I want to know how to modify it to configure the BOR level.

Thanks in advance.