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Re: Anyway to access the 7 segment display on NEC vrc4373 board?
- To: Ling Su <lingsu at palmmicro dot com>
- Subject: [ECOS] Re: Anyway to access the 7 segment display on NEC vrc4373 board?
- From: Jonathan Larmour <jlarmour at redhat dot com>
- Date: Wed, 13 Sep 2000 19:58:23 +0100
- CC: ecos-discuss at sources dot redhat dot com
- Organization: Red Hat UK Ltd.
- References: <00e101c01c6f$1c891f70$1201a8c0@crusoe> <001501c01d0c$8f661960$1201a8c0@crusoe>
Ling Su wrote:
>
> I can not find the 7 segment display on the schematic of NECvr4373 board I
> have, and actually I want to use it for some signaling purpose. I found it
> is enabled in plarform.S, but I don't know what is the address that it is
> mapped to. Could you please do me a favor to look it up in your document? I
> just want to write some bytes into it to show the progress of a program.
If you look at the vrc4372 data sheet at:
http://www.necel.com/home.nsf/Createpage?OpenAgent&Microprocessors&V()R()+Series(TM)+64-Bit+MIPS(R)+RISC&Companion+Chips&&&&&&&
Then look at section 6.5, page 24. And as you can see in platform.S, the 7
segment display is IOPROF_06 and IOPROF_07.
For more than this, you're on your own, sorry :-/. Unless someone else out
there has done this.
Jifl
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