OlegI
30-05-2006, 20:37
если кому-то понадобится. у ADSL-роутера Asus AAM6020BI (Asus AAM6030BI) на чипе TI AR7 внутри есть EJTAG разъем. Через него можно прошивать загрузчик, если он попортится. Распиновка на картинке.
JTAG Tools may damage your hardware! Type "quit" to exit!
Type "help" for help.
jtag> cable parallel 0x378 DLC5
Initializing Xilinx DLC5 JTAG Parallel Cable III on parallel port at 0x378
jtag> detect
IR length: 5
Chain length: 1
Device Id: 00000000000000000001000000001111
Manufacturer: Hitachi
Part: AR7300
Stepping: 0
Filename: /usr/local/share/jtag/hitachi/ar7300/ar7300
jtag> detectflash 0x30000000
ImpCode=01000001010000000100000000000000
EJTAG version: 2.6
EJTAG Implementation flags: R4k DINTsup ASID_8 NoDMA MIPS32
dev ID=2249 man ID=00c2
Using CFI flash chip detection, not jedec
Query identification string:
Primary Algorithm Command Set and Control Interface ID Code: 0x0002 (AMD/Fujitsu Standard Command Set)
Alternate Algorithm Command Set and Control Interface ID Code: 0x0000 (null)
Query system interface information:
Vcc Logic Supply Minimum Write/Erase or Write voltage: 2700 mV
Vcc Logic Supply Maximum Write/Erase or Write voltage: 3600 mV
Vpp [Programming] Supply Minimum Write/Erase voltage: 0 mV
Vpp [Programming] Supply Maximum Write/Erase voltage: 0 mV
Typical timeout per single byte/word program: 16 us
Typical timeout for maximum-size multi-byte program: 0 us
Typical timeout per individual block erase: 1024 ms
Typical timeout for full chip erase: 0 ms
Maximum timeout for byte/word program: 512 us
Maximum timeout for multi-byte program: 0 us
Maximum timeout per individual block erase: 16384 ms
Maximum timeout for chip erase: 0 ms
Device geometry definition:
Device Size: 2097152 B (2048 KiB, 2 MiB)
Flash Device Interface Code description: 0x0002 (x8/x16)
Maximum number of bytes in multi-byte program: 1
Number of Erase Block Regions within device: 4
Erase Block Region Information:
Region 0:
Erase Block Size: 16384 B (16 KiB)
Number of Erase Blocks: 1
Region 1:
Erase Block Size: 8192 B (8 KiB)
Number of Erase Blocks: 2
Region 2:
Erase Block Size: 32768 B (32 KiB)
Number of Erase Blocks: 1
Region 3:
Erase Block Size: 65536 B (64 KiB)
Number of Erase Blocks: 31
JTAG Tools may damage your hardware! Type "quit" to exit!
Type "help" for help.
jtag> cable parallel 0x378 DLC5
Initializing Xilinx DLC5 JTAG Parallel Cable III on parallel port at 0x378
jtag> detect
IR length: 5
Chain length: 1
Device Id: 00000000000000000001000000001111
Manufacturer: Hitachi
Part: AR7300
Stepping: 0
Filename: /usr/local/share/jtag/hitachi/ar7300/ar7300
jtag> detectflash 0x30000000
ImpCode=01000001010000000100000000000000
EJTAG version: 2.6
EJTAG Implementation flags: R4k DINTsup ASID_8 NoDMA MIPS32
dev ID=2249 man ID=00c2
Using CFI flash chip detection, not jedec
Query identification string:
Primary Algorithm Command Set and Control Interface ID Code: 0x0002 (AMD/Fujitsu Standard Command Set)
Alternate Algorithm Command Set and Control Interface ID Code: 0x0000 (null)
Query system interface information:
Vcc Logic Supply Minimum Write/Erase or Write voltage: 2700 mV
Vcc Logic Supply Maximum Write/Erase or Write voltage: 3600 mV
Vpp [Programming] Supply Minimum Write/Erase voltage: 0 mV
Vpp [Programming] Supply Maximum Write/Erase voltage: 0 mV
Typical timeout per single byte/word program: 16 us
Typical timeout for maximum-size multi-byte program: 0 us
Typical timeout per individual block erase: 1024 ms
Typical timeout for full chip erase: 0 ms
Maximum timeout for byte/word program: 512 us
Maximum timeout for multi-byte program: 0 us
Maximum timeout per individual block erase: 16384 ms
Maximum timeout for chip erase: 0 ms
Device geometry definition:
Device Size: 2097152 B (2048 KiB, 2 MiB)
Flash Device Interface Code description: 0x0002 (x8/x16)
Maximum number of bytes in multi-byte program: 1
Number of Erase Block Regions within device: 4
Erase Block Region Information:
Region 0:
Erase Block Size: 16384 B (16 KiB)
Number of Erase Blocks: 1
Region 1:
Erase Block Size: 8192 B (8 KiB)
Number of Erase Blocks: 2
Region 2:
Erase Block Size: 32768 B (32 KiB)
Number of Erase Blocks: 1
Region 3:
Erase Block Size: 65536 B (64 KiB)
Number of Erase Blocks: 31