supermp3 发表于 2024-2-8 01:34

光猫拆机接TTL线TELNET不讲武德

中兴2023年12后生产的光猫，拆机接TTL进行TELNET，不讲武德，不能停止命令执行，按任何键也不能阻止系统执行，我本来想刷机的，结果不允许：U-Boot 2016.01-rc3 (Jul 04 2023 - 21:24:57 +0800)

CPU: ZX279131@A53,900MHZ
Board: ZTE zx279131evb
DRAM:512 MiB
product_vid = 130
vid=130-F7610M
mtk reset,60
bootsel=3
NAND:bootsel=3
manuid=ef,aa
Winbond SPI NAND W25N02KVZEIR256MiB 3,3V
256 MiB, SLC, erase size: 128 KiB, page size: 2048, OOB size: 64
256 MiB
In:    serial
Out:   serial
Err:   serial
usb3.0-reset
clk_pll env is not setted, core clk won't change
Net:   mdio_miiphy_initialize
addr 0x10e1004c before value is ff
addr 0x10e1004c after value is ff80ff
after mdio_miiphy_initialize
ref_clk_set success!
eth0
### main_loop entered: bootdelay=1

Hit any key to stop autoboot:1  0
zboot info init done!
select=0x0
<nand_read_skip_bad_,1128>!mtdpart=0x6,offset=0x0,mtdpartoffset=0x100000,mtdPartsize=0x80000,length=0x1000
tmp=0x00000000, value=0
select=0x0
search=0x2
search->result.entry=680240,offset=240
<nand_read_skip_bad_,1128>!mtdpart=0x2,offset=0x0,mtdpartoffset=0x680000,mtdPartsize=0x2300000,length=0x1f00000
RSA Verify OK
verify vmlinuz success!!

---mtdparts_init--current_mtd_partnum=0-
dev id: type = 2, num = 0, size = 0xffffffff, mtd_id = single part
part: name = rootfs0, size = 0x1ee0000, offset = 0x6a0000
part: name = rootfs1, size = 0x1ee0000, offset = 0x29a0000

--- jffs2_part_info: partition number 0 for device nand0 (single part)
jffs2_part_info:rootfs0,6a0000
### JFFS2 loading '0uImage' to 0x88000000
Scanning JFFS2 FS:   ................. done.

### JFFS2 load complete: 4429071 bytes loaded to 0x88000000
<nand_read_skip_bad_,1128>!mtdpart=0x0,offset=0x0,mtdpartoffset=0x20000,mtdPartsize=0xa0000,length=0x80000
lseek=0x8c064800
cmdline=U-Boot V2.3.0P1N9 20220823211658
kernel start step1..images->state:70f
    ==BOOTM_STATE_START:1
    ==BOOTM_STATE_FINDOS:2
## Loading kernel from FIT Image at 88000000 ...
   Using 'conf@131G' configuration
   Trying 'kernel@A53' kernel subimage
   Description:Unify(TODO) Linux kernel for project-131G
   Type:         Kernel Image
   Compression:gzip compressed
   Data Start:   0x880000f8
   Data Size:    4419909 Bytes = 4.2 MiB
   Architecture: AArch64
   OS:         Linux
   Load Address: 0x80080000
   Entry Point:0x80080000
   Verifying Hash Integrity ... OK
    ==BOOTM_STATE_FINDOTHER:4
## Loading fdt from FIT Image at 88000000 ...
   Using 'conf@131G' configuration
   Trying 'fdt@131G' fdt subimage
   Description:Flattened Device Tree blob for project-131G
   Type:         Flat Device Tree
   Compression:uncompressed
   Data Start:   0x88437310
   Data Size:    7859 Bytes = 7.7 KiB
   Architecture: AArch64
   Verifying Hash Integrity ... OK
   Booting using the fdt blob at 0x88437310
    ==BOOTM_STATE_LOADOS:8
   Uncompressing Kernel Image ... OK
kernel start step6..
   Loading Device Tree to 0000000083ffb000, end 0000000083fffeb2 ... OK

Starting kernel ...

CPUID:0try wake up secondary cpu from rom.
CPUID:1wake up from rom.
init psci ok!!

zhjook 发表于 2024-2-8 02:35

你看看 ttl 的输入端 是不是 缺个电阻 ，我记得以前有的猫就是这样，不能输入，其实是断开了，缺焊有一个电阻

zhjook 发表于 2024-2-8 02:36

楼主发几个拆机图吧，网上的 都不清楚，角度 也不好，没啥细节，

我想补一下USB 3 接口的器件，

zhjook 发表于 2024-2-8 03:16

bootdelay=1我看了一下其他 猫的 暂停 3秒 ，你这个是1秒， 所以 你多试几次，赶上 这个1 秒才行

supermp3 发表于 2024-2-8 12:17

电阻本身就有的，启动过程已经试过很多次了！你要的USB3.0电路

supermp3 发表于 2024-2-8 13:00

supermp3 发表于 2024-2-8 12:17
电阻本身就有的，启动过程已经试过很多次了！你要的USB3.0电路

上传上来图片看不清楚了，留邮箱，我发你
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