# Program crash
**URL:** https://forum.amebaiot.com/t/program-crash/4320
**Category:** AI
**Tags:** rtl8735b, evb-amb82
**Created:** [August 24, 2025, 2:04pm UTC](https://forum.amebaiot.com/t/program-crash/4320 "2025-08-24T14:04:24Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@nsmith1024](https://forum.amebaiot.com/u/nsmith1024)
#### Post date: [August 24, 2025, 2:04pm UTC](https://forum.amebaiot.com/t/program-crash/4320/1 "2025-08-24T14:04:25Z")
Hello,
Im running the NN object recognition loop example on AMB82-mini, i also added some of my own code, but it keeps crashing, any idea what it can cause it? Is it running out of code space or RAM?
Here is the crash log:
09:54:14.647 → Total number of objects detected = 4
09:54:14.647 →
09:54:14.647 →
09:54:14.647 → Total number of objects detected = 4
09:54:14.647 →
09:54:14.681 →
[VID Wrn]
09:54:14.681 →
CH 0 MMF ENC Queue full
09:54:14.681 →
YOLOv4t tick[61]
09:54:14.681 →
09:54:14.681 →
09:54:14.681 → Bus Fault:
09:54:14.681 → SCB Configurable Fault Status Reg = 0x00000400
09:54:14.681 →
09:54:14.681 → Bus Fault Status:
09:54:14.681 → BusFault Address Reg is invalid(Asyn. BusFault)
09:54:14.681 → Imprecise data bus error:
09:54:14.681 → a data bus error has occurred, but the return address in the stack frame is not related to the instruction that caused the error.
09:54:14.681 →
09:54:14.681 → S-domain exception from Thread mode, Extended Stack frame on S-PSP
09:54:14.714 → Registers Saved to stack
09:54:14.714 →
09:54:14.714 → Stacked:
09:54:14.714 → R0 = 0x00000070
09:54:14.714 → R1 = 0x701a9119
09:54:14.714 → R2 = 0xffffffff
09:54:14.714 → R3 = 0xffffffde
09:54:14.714 → R4 = 0x00000018
09:54:14.714 → R5 = 0x7045402809:54:14.714 → R7 = 0x702a3268
09:54:14.714 → R8 = 0x00000060
09:54:14.714 → R9 = 0x00000001
09:54:14.714 → R10 = 0x702a30c8
09:54:14.714 → R11 = 0x11111111
09:54:14.714 → R12 = 0x704a5098
09:54:14.714 → LR = 0x20106a2d
09:54:14.714 → PC = 0x10022bfe
09:54:14.714 → PSR = 0xa1100000
09:54:14.714 →
09:54:14.714 → Current:
09:54:14.748 → LR = 0xffffffed
09:54:14.748 → MSP = 0x20003fd8
09:54:14.748 → PSP = 0x70453f98
09:54:14.748 → xPSR = 0xa0000005
09:54:14.748 → CFSR = 0x00000400
09:54:14.748 → HFSR = 0x00000000
09:54:14.748 → DFSR = 0x00000000
09:54:14.748 → MMFAR = 0x00000000
09:54:14.748 → BFAR = 0x00000000
09:54:14.748 → AFSR = 0x00000000
09:54:14.748 → PriMask = 0x00000000
09:54:14.748 → SVC priority: 0x00
09:54:14.748 → PendSVC priority: 0xf0
09:54:14.748 → Systick priority: 0xf0
09:54:14.748 →
09:54:14.748 → MSP Data:
09:54:14.748 → 20003FD8: 702BC9A4 FFFFFFF9 20004000 000003E8
09:54:14.748 → 20003FE8: E000E000 702BC9A4 07070707 70129F9D
09:54:14.781 → 20003FF8: 7012A008 21000000 AF7FDFB4 FFE7FBEF
09:54:14.781 → 20004008: 8D0D71B8 393685EE B7DF8E6D AFB771CD
09:54:14.781 → 20004018: 5B8088CE 3E47693C B9F4FF4B F5EFBAEE
09:54:14.781 → 20004028: 8798C266 2A9CB30C 9EC67DF4 DFD9DBFF
09:54:14.781 → 20004038: F8EA9DB5 51649A44 E97E4CC7 7757516F
09:54:14.781 → 20004048: 0400E380 0919C122 D4E9F923 A7985D6D
09:54:14.814 → 20004058: DA205546 4A041055 0B6D3FF5 4FFD157C
09:54:14.814 → 20004068: 2A484B45 00312998 33EEBD43 68B6D2EC
09:54:14.814 → 20004078: 019A28E1 095BD100 636A778D D62BB247
09:54:14.814 → 20004088: 82E9155A 8B29A509 D98DF37D 6BC6FFEF
09:54:14.814 → 20004098: 64005B9A 0268186E 7FC359C8 F6FB126F
09:54:14.814 → 200040A8: 942CDAFD 1315E5B9 F5DCDDDF E86FE7F6
09:54:14.814 → 200040B8: 199635F0 7C034C21 FBFAD969 AF36ED1D
---
### Author:  [@Pammy](https://forum.amebaiot.com/u/Pammy)
#### Post date: [August 25, 2025, 1:35am UTC](https://forum.amebaiot.com/t/program-crash/4320/2 "2025-08-25T01:35:15Z")
Hi @nsmith1024 ,
May I check if the default example (without adding your code) crashes? If no, it could be the portion of the code that you have added that is causing the hardfault.
From the log, it could be due to memory issue.
Could you share your code with us for us to reproduce your issue. Thank you.