RetroBSD

2.11BSD operating system for microcontrollers
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PostPosted: Wed Apr 23, 2014 5:12 pm 
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Location: Room 217, Floor 8, Arm 8, Wheel S7, Mars Base Alpha 3
A mate of mine came round today and dropped of a small pile of junk - two old routers, a sonos bridge, and an old scanner.

The old scanner is ancient and truly is junk.

The others I decided needed stipping apart, and I was expecting them to be nothing more than an WiFi chip with integral ARM SOC, which is all you ever see these days.

I was wrong.

One of the routers, and the Sonos bridge use a Lantiq chip, which is MIPS 4KEc, and the other router (D-Link DSL-G604T) uses a Texas Instruments AR7, which again is MIPS 4KEc, and eventually became Lantiq after TI sold it.

That's the one I'm playing with right now, as it is quite well documented. I am looking at getting OpenWRT running on it, and I already have access to the bootloader through serial console on it. It has 4MB flash and 16MB RAM! *drool*

So... being MIPS and all, I wonder how hard it would be to get RetroBSD running on it? I don't give a fig about the ADSL side of things on it, nor the WiFi - I'm just looking at using it as a glorified switch for the moment, but it would be nice to play with it a little ;)

Code:
Adam2_AR7RD > info                                                             
Monitor Revision              0.22.02                                           
Monitor Compilation time      Sep 29 2003, 18:20:35                             
Endianness                    Little                                           
External Memory rate          Full, 16 bit wide                                 
CPU Frequency                 150 MHz                                           

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PostPosted: Wed Apr 23, 2014 5:28 pm 
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..and where is the sdcard??? :lol:

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PostPosted: Wed Apr 23, 2014 5:37 pm 
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Location: Room 217, Floor 8, Arm 8, Wheel S7, Mars Base Alpha 3
Stuff the SD card - there's 4 MB of flash and the flash RD driver.

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PostPosted: Wed Apr 23, 2014 5:47 pm 
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All the networking junk is mips. I would rather focus on MZ (or 470)... :)

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PostPosted: Wed Apr 23, 2014 6:02 pm 
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Location: Room 217, Floor 8, Arm 8, Wheel S7, Mars Base Alpha 3
Up till now every router I have dismantled has either been ARM (broadcom, conexant, etc) or something "special" like a Freescale M68K based, or i386 (in the case of ciscos). I've not seen MIPS in domestic stuff before, but then generally most stuff I have melted down before now has been new tacky cheap stuff, so bound to be ARM.

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