Tiva C Launchpad SLIP ± LCD web browsing – Just an update

This post is just an update to the last one.

Last time I was only able to successfully send SLIP frames over the serial link, but today, after nearly giving up because of slattach and modem flow control, the two machines could ping themselves.

SLIP ping test

The test was done using an Ubuntu 14.04 virtual machine with the same usbserial dongle. The culprit was the “-L” slattach argument, which disables modem-like flow control (i.e. no RTS/CTS/DTR/… needed) and that’s what I need.

Now I just need to set up iptables to forward packets from BBB’s eth0 to sl0.

BB

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