Trying to debrick a com21 doxport dp1110 with a variation of the sb4100 debrick script,but usbjtagnt will only program the 1st sector correctly.
Sector 2 and the other sectors get programmed incorrectly.
You should not select SB4100 if your cpu is not BCM3345.
Use erase and spogram for all your sectors. Since SST is not common on modem. After erase use cmpram to make sure it is all blanked before use "sprogram".
I think the flash.xml might not be right thus the erase is not complete.
I thought the sb4100 was bcm3350?
The rca315 setting in usbjtagnt detects 2 flash chips(there are spots on the board for 2 flash chips) but only 1 sst39VF160 is installed.
In usbjtagnt there is no way for me to select just 1 chip.
In ujmodem I have the option of 2meg rca315 or 4meg rca315,so I select 2meg
I have no idea what modem uses what processor,so I selected ones that had the flash address that correctly identifies the flash chip.
I used the sb4100 setting to dump the original flash before I messed it up,that dump may not even be good now.
slugworth wrote:I thought the sb4100 was bcm3350?
The rca315 setting in usbjtagnt detects 2 flash chips(there are spots on the board for 2 flash chips) but only 1 sst39VF160 is installed.
In usbjtagnt there is no way for me to select just 1 chip.
In ujmodem I have the option of 2meg rca315 or 4meg rca315,so I select 2meg
I have no idea what modem uses what processor,so I selected ones that had the flash address that correctly identifies the flash chip.
I used the sb4100 setting to dump the original flash before I messed it up,that dump may not even be good now.
BCM3345 is for SB4100 I think.
You need 2M configuration for your modem. Modify the XML will work for 2M.
usbbdm wrote:
Use erase and sprogram for all your sectors. Since SST is not common on modem. After erase use cmpram to make sure it is all blanked before use "sprogram".
I think the flash.xml might not be right thus the erase is not complete.
I can only erase the first sector,then it freezes and doesn't erase.
I erase the first sector and save the 4k bin file to pc,it is all FF's
I then program with a 4k chunk of the original backup,it programs and verifies fine.The second sector fails to erase/program.Speed problem maybe?
The def file for the sst39vf160 matches all others I have seen; 512 sectors of 0x1000 size.
I think there is a block erase for that flash,64k blocks
I can only erase certain addresses, 4k at a time.
Any other address or any other size and the program freezes.
9fc0xxxx
9fc1xxxx
9fc2xxxx
9fc3xxxx
etc. which are 64k blocks but I can only erase 4k of them each.