LowPowerLab Forum

Hardware support => Moteino => Topic started by: dom67911 on May 26, 2014, 07:05:40 PM

Title: Minicom not picking up signals for Moteino R4 69HW [solution]
Post by: dom67911 on May 26, 2014, 07:05:40 PM

So, I messed up my Raspberry PI image and needed to create a new one.
I installed the latest Raspbian and immediately installed minicom to confirm Moteino can still talk to it.
BUT, no dice. Minicom launches on baud 115200 just fine (no errors) but no messages are appearing on the console (as I'm used to seeing). Just the minicom startup text and nothing else.

Its been a while since I've done this setup, but am I missing something?
This is the command Im using: sudo minicom -b 115200 -o -D /dev/ttyAMA0
Yes, I've confirm ttyAMA0 appears and disappears when Moteino is connect and removed.
I know if Minicom does not work, then there's no chance for the Gateway to work.
Any ideas? I've confirm the Hardware Flow control in minicom is set to yes and Software is set to no.

Title: Re: Minicom not picking up signals for Moteino R4 69HW
Post by: Felix on May 27, 2014, 06:55:41 AM

Backups of known good configurations are helpful sometimes :)
Did you remove the GPIO serial (ttyAMA0) from the system console?

ENABLE SERIAL PORT:
sudo cp /boot/cmdline.txt /boot/cmdline_backup.txt       - backup first!
sudo nano /boot/cmdline.txt                                            - Remove parameters that contain “ttyAMA0”
sudo nano /etc/inittab
Comment out the line that spawns a getty on ttyAMA0:
#2:23:respawn:/sbin/getty -L ttyAMA0 115200 vt100

Title: Re: Minicom not picking up signals for Moteino R4 69HW
Post by: dom67911 on May 28, 2014, 11:44:13 PM

This worked for me! Sorry for the late reply.
I'm backing up more often now. Thanks!