1. Business Enabled Communications
Maintenance
Business Enabled Communications

2. System Recovery Memory Structure
MG 100/300 have 1 NOR Flash and 1 NAND Flash memories
MG 300 has 8Mbyte SRAM and 128Mbyte DRAM Memories
MG 100 has 4Mbyte SRAM and 64Mbyte DRAM Memories
512K
Boot Image 4M
(DSP + Kernel #2)
MG300 / 128M
MG100 / 128M
(Working Memory)
MG300 / 8M
MG100 / 4M
(DataBase)
3520K
(DSP+Kernel #1)
124M
(Root File System)
[8M / 4M SRAM]
64K
Environment Area
kernet#2 => 공장 backup
Root => mp, dsp, driver
Working => prompt, sys greeting, upload
[4M NOR FLASH]
[128M NAND FLASH]
[128M / 128M DRAM]

3. System Recovery Recovery Files
To Recover MG completely, it needs 4 Files and TFTP program. 1) Boot image 2) DSP+Kernel #1 image (for NOR Flash) 3) DSP+Kernel #2 image (for NAND Flash, it will be activated when DSP+Kernel#1 in NOR Flash is crashed) 4) Root File System
Boot image
DSP+Kernel#1
(NOR Flash)
DSP+Kernel#2
(NAND Flash)
Root File System
iPECS-MG300
mpb300.bin
56M_Kernel.rom
56M_kernel.yaffs
mg300.yaffs
iPECS-MG100
Mpb100.bin
55M_Kernel.rom
55M_kernel.yaffs
mg100.yaffs

4. System Recovery Recovery Files -. TFTP Server Program
* Install TFTP Server program on PC and run tftpd32 program
(user can download tftp server program from
* Set TFTP Server Directory by use the browse button (example: C:\tftp_server)
* Store mpb300/100.bin, 56/55M_Kernel.rom, 56/55M_Kernel.yaffs, Mg300/100.yaffs
to Server Directory (C:\tftp_server)

5. System Recovery Procedure
-. Connect PC and iPECS-MG with Serial Port
-. Turn iPECS-MG on and press [Ctrl+C] as quick as to log in boot mode.
MPB300/100-Boot>

6. System Recovery Procedure
-. To check the current system’s boot environment.
MPB300/100-Boot> printenv

7. System Recovery Procedure
-. Set IP range of iPECS-MG to xx and PC to xx`
(We assume that iPECS-MG has and PC has )
-. Set file name to get from TFTP Server
Change IP address of iPECS MG
Set Server IP to PC IP Address that hasTFTP server program
Set File name to get from PC

8. System Recovery Procedure
-. Apply changed value (commit)
MG300-Boot> update
select 2 (ARMBoot Env)
select 1 (NOR Flash)
update
press 2
press 1

9. System Recovery Procedure
-. Run TFTPd32 Server from PC
-. Copy 4 files to C:\tftp_server

10. System Recovery Procedure
-. Update Boot Image using TFTP
MPB300-Boot> update
select 0 (ARMBoot)
select 1 (NOR Flash)
select 1 (TFTP)

11. System Recovery Procedure
-. Update DSP+Kernel#1 to NOR using TFTP
MPB300-Boot> update
select 4 (Kernel)
select 1 (NOR Flash)
select 1 (TFTP)

12. System Recovery Procedure
-. Update RootFs to NAND using TFTP
MPB300-Boot> update
select 3 (RFS)
select 2 (NAND Flash)
select 1 (TFTP)

13. System Recovery Procedure
-. Update DSP+Kernel#2 to NAND
A. Change File Name of Kernel
B. Apply Change Value
C. Get 56M_Kernel.yaffs from PC
D. Revert File Name of Kernel for Kernel#1
A. MPB300-Boot> setenv kernelname 56M_Kenel.yaffs
B. MPB300-Boot > update
select 2 (ARMBoot Env)
select 1 (NOR Flash)

14. System Recovery Procedure
C. MPB300-Boot > update
select 4 (Kernel)
select 1 (NAND Flash)
select 1 (TFTP)
D. MPB300-Boot > setenv kernelname 56M_Kernel.rom
MPB300-Boot > update
select 2 (ARMBoot Env)
select 1 (NOR Flash)

15. System Recovery Procedure
-. Reset iPECS-MG System after update 4 files.