MC7710 crashes

IoT Modules MC/EM Series
1

Hello,
I have problem with MC7710 module. It is driven by computer with Linux operating system. Modem usually works fine, but from time to time it crashes. In Linux’s syslog I found -71 error (protocol error) followed by lot of -32 errors (broken pipe error).
AT!CGMR returns

SWI9200X_03.00.08.02AP R3715 CARMD-EN-10526 2011/11/14 18:42:43

AT!GCDUMP returns

Src: FatalError
Dat: 00000138
Str: wl1srchdc.c
Fmt: No cell structure available ...
00000000 00000000 00000000 00000000
Task: WCDM
Time: B794D24F
 R0: 02BE6474  R1: 00D48064  R2: 00000000  R3: 03337470  R4: 000000FE
 R5: 00000001  R6: 00000001  R7: 016BC904  R8: 00000000  R9: 00000BC5
R10: 0252F600 R11: 0199BEE4 R12: 03100000 R13: 03337470 R14: 2FD8D20A
R15: 080000F2 R16: F015BA30 R17: 00000000 R18: 00000000 R19: 00000000
R20: 00000000 R21: 00000000 R22: 00000000 R23: 00000000 R24: 00000000
R25: 00000000 R26: 00000000 R27: 033373C8 R28: 7FFFFFE0 SP:  03337238
FP:  03337248 LR:  01060A74
PC: 00D451D8
CPSR: 00000000
Mod: Unknown
Ctr: ARM, IRQ en,FIQ en
TOS
02776E98 00000000 00000000 030343AC 03337258 015D97E4 030343AC
00000000 03337278 015D9C68 00000000 00000000 01A36BB8 00000004
030343C4 030343AC 03337290 015D8DC0 03337290 015D83F4 00000004
030343C4 033372A8 015D9210 00000000 00000004 02C1D7F0 0000000F
033372B8 011289B4 00000001 0000000F
BOS

Src: FatalError
Dat: 000001FD
Str: err.c
Fmt: Error detected on remote processor.
00000000 00000000 00000000 00000000
Task: IST0
Time: B794DE5F
 R0: 00244220  R1: 00000002  R2: 00000000  R3: 00000000  R4: 2001DE10
 R5: 00000000  R6: 00000000  R7: 00000000  R8: 00000000  R9: 00000000
R10: 00000000 R11: 00000000 R12: FFFFFF1C R13: 0051E298 R14: 002D6BEF
PC: 00243FF4
CPSR: 000000F0
Mod: User
Ctr: Thumb, IRQ dis,FIQ dis
TOS
00000068 0038B978 002964C1 00000003 00000068 0038B978 002D6D19
0029480D 00000001 08010029 08010041 00000001 0038B8D8 0038B888
08010029 00294A6D 003C0898 00000001 00000001 003C1338 00294A99
00000001 00000069 002DAF7F 00000001 00040000 00000000 00080000
000000CC 001CD4FB 0051CCB4 002DA921
BOS

After cold reboot, everything works OK. Please help.
Best regards

2

The FW running in your MC7710 is very old and the issue may already been fixed…

Could you please try recent FW downloadable below and see if any improvement?
http://developer.sierrawireless.com/Resources/Resources.aspx#&&filter=Query-eq-mc7710-sep-Categories-eq-(743FE57F-CE09-4941-B2E3-B80FD827FF5F)

Thanks.

3

I assume it is the same problem
[url]https://forum.sierrawireless.com/t/mc7700-sync-errors/6191/1]