vasupproduct.blogg.se

1. Cp210x usb to uart bridge not working install#
2. Cp210x usb to uart bridge not working serial#
3. Cp210x usb to uart bridge not working Pc#
4. Cp210x usb to uart bridge not working series#

A module from a different “uname -r” may or may not work (depending on several issues), and it is always recommended that if you build a new kernel which has a new “uname -r” that you rebuild all modules from scratch. If a different kernel is loaded, then the modules must also be installed for the new kernel. Modules are searched for at “/lib/modules/$(uname -r)/”. If this is “=m”, then your thought that the kernel version may be the issue is probably correct. The “=m” could still fail if the module is not being loaded. If this says “=y” or “=m”, then you have support for that particular UART. What do you see from: zcat /proc/config.gz | grep CP210 If this works you know the port is working at those settings. If you wire TX to its own RX (and optionally CTS to its own RTS), then you have loopback. Let’s say your system has ttyUSB0, and you use gtkterm as above to talk to ttyUSB0.

Cp210x usb to uart bridge not working serial#

The result would be the serial terminal seeing echo of what you type if it works, or nothing if it fails. If you wish to test a port you can use loopback to have the port talk to itself. Note that if two ports are using different settings, then you will either get no output or output will be corrupt.

Cp210x usb to uart bridge not working install#

I’ll recommend testing first with gtkterm since it is purely a serial console: sudo apt-get install gtkterm If modem init strings are being sent there is no telling what the result would be.

“Not connected” could be referring to a telephone PPP or SLIP connection and not to the UART. Those modems were not only serial UARTs, they also had “AT” command sets…short commands which configured the modem itself and not just the UART. Anyway, this seems weird.Realize that minicom came from a day when people used telephone modems most of the time. Not sure if that's the problem of the cable itself. The cable I'm using is "silicon labs cp210x usb to uart bridge".

Cp210x usb to uart bridge not working series#

At first I thought this to be expected for WRT series routers but a youtube video connecting a WRT1200 using TTL-USB proved that I was wrong. The post above is a WRT1900 v2 and my unit is WRT3200ACM. But if I keep that pin physically disconnected, turn on the power first, and then immediately connect that pin, I'll be able to get those regular information (uboot & etc) from the serial port. Then I saw #12 of the thread "Did I just brick my router? Linksys WRT1900AC" in this forum (I don't have the permission to put a link here, sorry) and realized that I'm facing exactly the same issue: If PIN2 (TX on the router) is physically connected to the USB-TTL cable before the power is on, the boot will be blocked. The boot process looks like being "blocked" by something and nothing is transmitted via the serial port. However, when I turn on the power, 6 of the LEDs (the 2 for wifi & the 4 for LAN) blinked once and then all LEDs are off forever.

Cp210x usb to uart bridge not working Pc#

I connected the cable with the router & PC correctly.

I picked a TTL-USB cable which has been working perfectly with my old router (TP-Link wr1041n). Everything is fine until I try the USB-to-TTL thing: Today I get my new WRT3200ACM and start to play around.

(Correct me if its a common known issue or if I made some stupid mistake.)