this post was submitted on 24 Nov 2023
7 points (100.0% liked)

Ask Electronics

3325 readers
1 users here now

For questions about component-level electronic circuits, tools and equipment.

Rules

1: Be nice.

2: Be on-topic (eg: Electronic, not electrical).

3: No commercial stuff, buying, selling or valuations.

4: Be safe.

founded 1 year ago
MODERATORS
DavideAndrea@discuss.tchncs.de
linker3000@discuss.tchncs.de
7
Can anyone find datasheets for these ICs ? (programming.dev)
submitted 1 year ago* (last edited 1 year ago) by 80avin@programming.dev to c/askelectronics@discuss.tchncs.de
1 comments fedilink hide all child comments
 

Just exploring about this tp-link XN020-G3v router. I'm mostly interested in connecting to the UART, won't be tinkering with electronics of it, but out of curiosity I tried to search what these chips are. and I couldn't find much about the big chip. Can anyone describe the 4 main chips on it ? Best would be datasheet, but whatever information you can provide.

I suspect

  1. bigger one(ECONET EN7526FCU) is CPU/SOC, (couldn't find datasheet/specs). Can anyone provide details ?
  2. MT7592N is definitely network IC(found datasheet)
  3. Le9641PQC is network IC. required for VoIP. (found datasheet)
  4. AJ194 (backside) is flash ? How to tinker with it ?

you are viewing a single comment's thread
view the rest of the comments
[–] cmnybo@discuss.tchncs.de 4 points 11 months ago

The flash chip is a common 16 MiB SPI NOR flash. An easy way to read or write it would be to use flashrom on a single board computer like a Raspberry Pi.

Unfortunately, that router is not supported by OpenWrt or DD-WRT, so you probably won't be able to do much with it.