Hi, I have a USB to UART connection but when I power up the Meraki MR18 I just get rubbish on the terminal screen. I have set the speed to 115200, 8bits, parity none, stop bit 1 and flow control none. Is this correct if not what should it be?
It should be 115200 - https://git.openwrt.org/?p=openwrt/openwrt.git;a=commit;h=1d49310fdb5e6febd2e7a60d55deb0adb4364307
Thanks. So why am I getting just loads of rubbish characters when I power up the meraki?
Interchanged Tx and Rx?
Vcc should not be connected
Hi, thanks. Didn't produce anything. When I do connect it the startup led doesn't flash but when not connected it does. Do I need the ethernet cable connected?
Things which could help:
Make sure the GND pin is connected
If you are using Putty use versions better than: 0.73 and check this setting:
Window > Translation > "Enable VT100 line drawing even in UTF-8 mode".
Hi, Thanks, tried that but nothing. I have been using UART Terminal program. The usb to uart I have https://www.amazon.co.uk/gp/product/B0B7RHPMT7/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1.
short the Tx and the Rx pins on the USB TTL, does it echo back your input when you type in your serial port term app ?
Not sure. When I connect them up and type something in it appears on the screen. When they are not connect nothing happens when I type. So guessing it does echo.
if "something" isn't what you typed, it's broken ...
Managed to connect a Raspberry Pi to the UART and it shows it booting but errors with FATAL: read zero bytes from port
term_exitfunc: reset failed for dev UNKNOWN: Input/Output error
So think the USB to Serial doesn't work correctly.