Re: [Discuss-gnuradio] The Mystery Deepens: GNU Radio on Intel-Mac

[Michael Dickens]

Intel-Mac users: Could you try something for me?  I've attached a  
file, which you would (1) extract: tar jxf std_ihx_works.tar.bz2; (2)  
then move/copy into ${gnu_radio_prefix}/share/usrp/rev2/ and ..../ 
rev4 .  Then go into ..../usrp/host/apps (any since July 13, 2006,  
doesn't matter as far as I can tell) and (make sure a USRP is  
attached and powered up, then) try test_usrp_standard_tx and  
test_usrp_standard_rx (with your favorite options).  For me, this  
works on both a MacBook Pro and 20" Intel-iMac.

This file is created by .../usrp/firmware/src/usrp2 by SDCC  
compilation.  The Intel-Mac compiled version of SDCC 2.6 has a bus  
error during compiling "usb_common.c", and even when I "overcome"  
that error the file it produces (std.ihx) still doesn't work.  The  
file I attached was created on July 13 on a MacBook Pro running (I  
think) XCode 2.3 and (I know) DarwinPorts' compiled and installed  
SDCC 2.4.0 with my manual fix to get SDCC to compile.  Compiling SDCC  
2.4 (manually, since DarwinPorts no longer supports that version) on  
the Intel-iMac doesn't change the result of "std.ihx" compilation  
(meaning the file "std.ihx" is exactly the same whether using the  
July 13 code or a current SVN checkout.  This implies to me that the  
USRP's firmware code for creating "std.ihx" hasn't changed since July  
13, and hence it's not the USRP code which is an issue, but rather  
the way SDCC is interpreting that code).

I will hopefully have access to the -known working- MacBook Pro  
tomorrow to figure out what's installed on it, and if I can recreate  
SDCC 2.4 which seems to work, and if so what the deal is which is  
breaking SDCC (or whatever the issue is, which still eludes me).

In the mean time, if anyone has thoughts of where else I could direct  
my efforts on this front, I'd appreciate them.  I'm truly at a loss  
as to -how- SDCC can mess things up so royally.  Others have  
suggested an endianness problem ... I really don't know.

Thanks in advance for you assistance! - MLD

std_ihx_works.tar.bz2
Description: Binary data