Okay, that was fun. You see, it happened, that I got for nearly free a Mercury MW150R router. Since it was pretty sucky, I didn’t hope to find anything useful in it, nor I thought it could be the target for OpenWRT. Nevertheless, once I had a spare moment I cracked it open and…
Well, AR9331 describes it all. The same chip you’ll find on WR703N, so it WAS a target for OpenWRT after all. Next I hooked up the UART, and saw the very unpleasant picture. It had only 2 MiBs of spi flash, and 8 MiBs of RAM, barely enough to run VxWorks with a crippled web interface. So it was a nice time for an upgrade:
