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.
Here's another way to do in this link :
www.4shared.com/.../Option_bytes.html