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Re: [gpsd-dev] ARM port problem in rtcm3.2 handling
From: |
Paul Fertser |
Subject: |
Re: [gpsd-dev] ARM port problem in rtcm3.2 handling |
Date: |
Thu, 21 Apr 2016 11:18:02 +0300 |
User-agent: |
Mutt/1.5.23 (2014-03-12) |
Hey Gary,
On Wed, Apr 20, 2016 at 12:33:55PM -0700, Gary E. Miller wrote:
> > Gary, I think there's an endianness problem in your recent 3.2
> > additions somewhere.
>
> I doubt it since you and I are both running big-endian. All x86 is
> big endian, and Debian armhf is also big endian. So bot are the same
> endianness.
For the reference, in your other email you correctly state that both
of those systems are little-endian.
The most obvious big endian target that's widely available is MIPS in
numerous wifi routers and similar boards. For as little as $10 you can
get a device with Ethernet and USB high speed port plus few GPIOs,
with 32M RAM, 4M or 8M flash and an 1x1 802.11n 2.4GHz WiFi
interface. Granted, you can't really run a full-fledged distro on it
but OpenWrt is a painless cross-compiling environment that supports
boards like that nicely.
Another option is to emulate a MIPS, SPARC or PPC system in QEMU.
I think the RTCM issues you were facing are due to the char being
signed by default on x86 and amd64 but unsigned on arm.
--
Be free, use free (http://www.gnu.org/philosophy/free-sw.html) software!
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- [gpsd-dev] ARM port problem in rtcm3.2 handling, Eric S. Raymond, 2016/04/20
- Re: [gpsd-dev] ARM port problem in rtcm3.2 handling, Gary E. Miller, 2016/04/20
- Re: [gpsd-dev] ARM port problem in rtcm3.2 handling, Eric S. Raymond, 2016/04/20
- Re: [gpsd-dev] ARM port problem in rtcm3.2 handling,
Paul Fertser <=
- Re: [gpsd-dev] ARM port problem in rtcm3.2 handling, Gary E. Miller, 2016/04/21
- Re: [gpsd-dev] ARM port problem in rtcm3.2 handling, Hal Murray, 2016/04/21
- Re: [gpsd-dev] ARM port problem in rtcm3.2 handling, Gary E. Miller, 2016/04/21
- Re: [gpsd-dev] ARM port problem in rtcm3.2 handling, Eric S. Raymond, 2016/04/21
- Re: [gpsd-dev] ARM port problem in rtcm3.2 handling, Hal Murray, 2016/04/21
- Re: [gpsd-dev] ARM port problem in rtcm3.2 handling, Eric S. Raymond, 2016/04/21
- Re: [gpsd-dev] ARM port problem in rtcm3.2 handling, Gary E. Miller, 2016/04/21