Differences
This shows you the differences between two versions of the page.
|
doc:howto:generic.debrick [2013/02/09 01:17] pierotofy |
doc:howto:generic.debrick [2013/02/09 01:18] (current) pierotofy |
||
|---|---|---|---|
| Line 30: | Line 30: | ||
| Serial consoles are great, there's just one problem - the routers run on 3.3v and a normal PC serial port puts out +/-12v, easily frying a router. This means that a level shifter such as a max233 is required (free samples can be obtained from Texas Instruments or Maxim), and adding the ICs and caps required is beyond the ability of most users -- luckily there's a shortcut. Most cellphones are either USB or 3.3v serial, so the data cable for a 3.3v cellphone can be used to make an easy and professional looking serial console connection (e.g the DKU-5 Cable for Nokia handsets). You only need to identify and connect 4 wires (vcc, rx, tx, gnd) -- and if your cable uses a pl2303 you can skip the vcc connection. | Serial consoles are great, there's just one problem - the routers run on 3.3v and a normal PC serial port puts out +/-12v, easily frying a router. This means that a level shifter such as a max233 is required (free samples can be obtained from Texas Instruments or Maxim), and adding the ICs and caps required is beyond the ability of most users -- luckily there's a shortcut. Most cellphones are either USB or 3.3v serial, so the data cable for a 3.3v cellphone can be used to make an easy and professional looking serial console connection (e.g the DKU-5 Cable for Nokia handsets). You only need to identify and connect 4 wires (vcc, rx, tx, gnd) -- and if your cable uses a pl2303 you can skip the vcc connection. | ||
| - | == Arduino == | + | Serial console allows you to interact with the CFE command line, watch the kernel boot and console access to linux. This is probably the only way you'll every get any meaningful feedback about the device boot up. |
| + | |||
| + | === Arduino === | ||
| If you have an Arduino board you can upload a sketch that will send the debrick commands via serial. An example that works for the TP-WR703N is available here: https://forum.openwrt.org/viewtopic.php?pid=191463. Note that the commands for your router could be different! | If you have an Arduino board you can upload a sketch that will send the debrick commands via serial. An example that works for the TP-WR703N is available here: https://forum.openwrt.org/viewtopic.php?pid=191463. Note that the commands for your router could be different! | ||
| - | |||
| - | |||
| - | Serial console allows you to interact with the CFE command line, watch the kernel boot and console access to linux. This is probably the only way you'll every get any meaningful feedback about the device boot up. | ||
| === WIFI === | === WIFI === | ||
doc/howto/generic.debrick.txt · Last modified: 2013/02/09 01:18 by pierotofy