how interchangable between various ARM7TDMI?

[Ozonehole2k]

Someone has spotted a cheap surecom-net router. It sells for less
than $50.
**broken link removed**

It has 4MB of SDRAM, 1MB of Flash... It has a JTAG port on board as
well. We only need to solder a connector in. Probably, the cheapest
ARM evaluation board around the town... However, it has a winbond
W90N740 (ARM7TDMI). The chip has 2 MAC built-in... Winbond refuses
to provide detail info about their chip. Only a reference manual is
publicly available.
**broken link removed**

There is no available ucLinux or other opensource OS that supports
it... I am not familar with the ARM architecture. But, really want
to evaluate ARM on a tight budget. I wonder if it is possible to
loading standard ucLinux on this, while leaving the non standard
functionality... In other words, how interchangable are between various ARM7TDMI?

 

[dainis]

/http://hri.sourceforge.net/

Hardware Recycling Initiative (HRI)
Often, open embedded projects are facing unexpected roadblock - cost of the hardware platform. Embedded platform (SBC, PC-104 and similar) are priced as a specialized hardware and usually cost hundreds or thousands dollars. On the other hand, today's computer equipment shops are flooded with extremely cheap "DSL/Cable" routers, NAT firewalls, wireless access pointers and similar. Usually, "residential" router is priced under $50 ($100 if has wireless capabilities) and often has significant computing power inside (50-100Mhz ARM based CPU, 8-16Mbytes of memory, 10/100Mbit Ethernet, often WiFi).

Hardware Recycling Initiative (HRI) is an open source project with goal to port Linux (or its microcontroller clone - uClinux) into publicly available residential router hardware.

 

[alzomor]

Hi

Check this link

https://www.winbond-usa.com/products/winbond_products/pdfs/32-bit/W90N740CD_CDGf.pdf

Salam
Hossam Alzomor
www.i-g.org