Setup minicom for mini2440

For windows, it is recommended to use Hyperterminal for serial port communication. In order to develop under linux via nfs, a terminal software 'Minicom' is installed and applied instead of Hyperterminal. The USB to serial adapter is used for my laptop. The following items are related for Minicom.
  • Install minicom package
  • Check if there is active serial ports:
>dmesg | grey tty
[    0.004000] console [tty0] enabled
[    1.174860] serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
[ 2237.927394] usb 3-1: pl2303 converter now attached to ttyUSB0

  • Check read/write permissions on /dev/ttyUSB0 file:
>ls -la /dev | grep ttyUSB0
crw-rw----  1 root dialout 188,   0 2009-10-10 13:59 ttyUSB0

  • If the permissions are not set as above, it can be configured as below:
>chown root /dev/ttyUSB0
>chgrp dialout /dev/ttyUSB0
>chmod 660 /dev/ttyUSB0

  • Add debian user in the dialout group (for me the user is 'lp')
>adduser lp dialout

  • To see which users are members of the dialout group, open the /etc/group file and look for th eline beginning with dialout
>cat /etc/group | grep dialout

  • Start and configure minicom under superuser mode
>minicom -s
>Select 'Select port setup'
>Change Serial Device from '/dev/ttyS1' to '/dev/ttyUSB0'
>Set Hardware Flow Control from 'Yes' to 'No'
>'Save setup as ...' mini2440_config'

  • Start minicom using 'mini2440_config'
>minicom mini2440_config

  • Leave minicom
>Ctrl A->X

If you use a linux system in vmware, this configuration may not work. You need to
  1. check if your vmware is a bridged network
  2. disable your firewall in your host machine.
  3. read this tutorial.

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