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0x00006B00 E92D4FFF PUSH {r0-r11,lr}0x00006B04 4606 MOV r6,r00x00006B06 468B MOV r11,r10x00006B08 461C MOV r4,r30x00006B0A B081 SUB sp,sp,#0x040x00006B0C F1030048 ADD r0,r3,#0x480x00006B10 9000 STR r0,[sp,#0x00]0x00006B12 F7FDFA2B BL.W _mutex_acquire (0x00003F6C)0x00006B16 F1BB0F00 CMP r11,#0x000x00006B1A D006 BEQ 0x00006B2A0x00006B1C 9903 LDR r1,[sp,#0x0C]0x00006B1E 6827 LDR r7,[r4,#0x00]0x00006B20 2500 MOVS r5,#0x000x00006B22 4628 MOV r0,r50x00006B24 FB0BF901 MUL r9,r11,r10x00006B28 E065 B 0x00006BF60x00006B2A 2400 MOVS r4,#0x000x00006B2C E07C B 0x00006C280x00006B2E 2F00 CMP r7,#0x000x00006B30 DC63 BGT 0x00006BFA0x00006B32 69E0 LDR r0,[r4,#0x1C]0x00006B34 4548 CMP r0,r90x00006B36 DA41 BGE 0x00006BBC0x00006B38 F1BA0F00 CMP r10,#0x000x00006B3C D03E BEQ 0x00006BBC0x00006B3E 68E0 LDR r0,[r4,#0x0C]0x00006B40 0680 LSLS r0,r0,#260x00006B42 D501 BPL 0x00006B480x00006B44 6AA0 LDR r0,[r4,#0x28]0x00006B46 E004 B 0x00006B520x00006B48 69A1 LDR r1,[r4,#0x18]0x00006B4A 6860 LDR r0,[r4,#0x04]0x00006B4C 4408 ADD r0,r0,r10x00006B4E 6921 LDR r1,[r4,#0x10]0x00006B50 1A40 SUBS r0,r0,r10x00006B52 4622 MOV r2,r40x00006B54 EBA90105 SUB r1,r9,r50x00006B58 4680 MOV r8,r00x00006B5A 4630 MOV r0,r60x00006B5C F7FFFCD2 BL.W _readbuf (0x00006504)0x00006B60 2800 CMP r0,#0x000x00006B62 DD14 BLE 0x00006B8E0x00006B64 F04F0700 MOV r7,#0x000x00006B68 4480 ADD r8,r8,r00x00006B6A F1A80101 SUB r1,r8,#0x010x00006B6E 4406 ADD r6,r6,r00x00006B70 61A1 STR r1,[r4,#0x18]0x00006B72 6922 LDR r2,[r4,#0x10]0x00006B74 F8161C01 LDRB r1,[r6,#-0x01]0x00006B78 4405 ADD r5,r5,r00x00006B7A 7011 STRB r1,[r2,#0x00]0x00006B7C 6921 LDR r1,[r4,#0x10]0x00006B7E F1010101 ADD r1,r1,#0x010x00006B82 62E1 STR r1,[r4,#0x2C]0x00006B84 6061 STR r1,[r4,#0x04]0x00006B86 68E1 LDR r1,[r4,#0x0C]0x00006B88 F4413100 ORR r1,r1,#0x200000x00006B8C 60E1 STR r1,[r4,#0x0C]0x00006B8E 1C41 ADDS r1,r0,#10x00006B90 D003 BEQ 0x00006B9A0x00006B92 B110 CBZ r0,0x00006B9A0x00006B94 68E0 LDR r0,[r4,#0x0C]0x00006B96 0640 LSLS r0,r0,#250x00006B98 D542 BPL 0x00006C200x00006B9A 4620 MOV r0,r40x00006B9C F7FFFCCE BL.W _seteof (0x0000653C)0x00006BA0 F8C48018 STR r8,[r4,#0x18]0x00006BA4 6920 LDR r0,[r4,#0x10]0x00006BA6 6060 STR r0,[r4,#0x04]0x00006BA8 62E0 STR r0,[r4,#0x2C]0x00006BAA 68E0 LDR r0,[r4,#0x0C]0x00006BAC 6027 STR r7,[r4,#0x00]0x00006BAE F4203000 BIC r0,r0,#0x200000x00006BB2 60E0 STR r0,[r4,#0x0C]0x00006BB4 69E0 LDR r0,[r4,#0x1C]0x00006BB6 4240 RSBS r0,r0,#00x00006BB8 60A0 STR r0,[r4,#0x08]0x00006BBA E018 B 0x00006BEE0x00006BBC 4548 CMP r0,r90x00006BBE DA03 BGE 0x00006BC80x00006BC0 68E0 LDR r0,[r4,#0x0C]0x00006BC2 F4400000 ORR r0,r0,#0x8000000x00006BC6 60E0 STR r0,[r4,#0x0C]0x00006BC8 4620 MOV r0,r40x00006BCA F7FFFCCB BL.W __filbuf (0x00006564)0x00006BCE 68E1 LDR r1,[r4,#0x0C]0x00006BD0 F4210100 BIC r1,r1,#0x8000000x00006BD4 60E1 STR r1,[r4,#0x0C]0x00006BD6 1C41 ADDS r1,r0,#10x00006BD8 D008 BEQ 0x00006BEC0x00006BDA 1C81 ADDS r1,r0,#20x00006BDC D00A BEQ 0x00006BF40x00006BDE 6827 LDR r7,[r4,#0x00]0x00006BE0 2800 CMP r0,#0x000x00006BE2 DB07 BLT 0x00006BF40x00006BE4 1C6D ADDS r5,r5,#10x00006BE6 F8060B01 STRB r0,[r6],#0x010x00006BEA E019 B 0x00006C200x00006BEC 6027 STR r7,[r4,#0x00]0x00006BEE FBB5F4FB UDIV r4,r5,r110x00006BF2 E019 B 0x00006C280x00006BF4 2001 MOVS r0,#0x010x00006BF6 4682 MOV r10,r00x00006BF8 E012 B 0x00006C200x00006BFA EBA90005 SUB r0,r9,r50x00006BFE 46B8 MOV r8,r70x00006C00 42B8 CMP r0,r70x00006C02 DA00 BGE 0x00006C060x00006C04 4680 MOV r8,r00x00006C06 4630 MOV r0,r60x00006C08 4642 MOV r2,r80x00006C0A 6861 LDR r1,[r4,#0x04]0x00006C0C F7FEFB99 BL.W __aeabi_memcpy (0x00005342)0x00006C10 6861 LDR r1,[r4,#0x04]0x00006C12 EBA70708 SUB r7,r7,r80x00006C16 4446 ADD r6,r6,r80x00006C18 EB010008 ADD r0,r1,r80x00006C1C 4445 ADD r5,r5,r80x00006C1E 6060 STR r0,[r4,#0x04]
Dear Friends,I am trying to use fread. the problem is that a I am getting an IMPRECISERR hard fault. This is the exact dissembly instruction that causes hardfault.0x00006C1E 6060 STR r0,[r4,#0x04]The STR instruction is causing the Hardfault.The contents of R4 is 0x0000. Adding the offset 0x04, the address 0x0004 corresponds to the on chip flash.(In case if the address would have pointed out any periphera, i would have debugged the code related to that peripheral). But i dont understand how to i debugg the on chip flash.Kindly advise.
0x00006C1E 6060 STR r0,[r4,#0x04]