This is the mail archive of the ecos-discuss@sources.redhat.com mailing list for the eCos project.


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]
Other format: [Raw text]

about GDB download speed.


hello, everybody,
 
    I have ported redboot to an ARM
board with a FLASH ROM in 0x00000000, and the redboot
is running in ROM mode. Debug function is OK, and the
tftp download speed is about 3 M bps. But the GDB
download speed is only about 75 K bps. 
    I have read the mail talking about
speed up the GDB download speed, and modified the
packet size of redboot GDB stub to 20K bytes, 
 
(generic-stub.c)
// #define BUFMAX 2048
#define BUFMAX 20480
 
and set the GDB with the following command in the
console:
 
    set download-write-size 20000
    set remote memory-write-packet-size
20000
    set remote memory-write-packet-size
fixed
 
    Why the speed is still so slow,
does the mode of run in ROM effect? BTW, I have never
enabled the cache of the CPU, does this effect?
    Any suggestion is appreciated.
 
Best Reguards
Rich
 



_________________________________________________________
Do You Yahoo!? 
惠普TT游戏剧,玩游戏,中大奖!
http://cn.rd.yahoo.com/mail_cn/tag/SIG=1402c0to2/**http%3A%2F%2Fhp.allyes.com%2Flaserjet%2Fgamestory%2Findex.html%3Fjumpid%3Dex_hphqapcn_MongooseLJ1010%2F201073CN407016%2FYahoo

-- 
Before posting, please read the FAQ: http://ecos.sourceware.org/fom/ecos
and search the list archive: http://ecos.sourceware.org/ml/ecos-discuss


Index Nav: [Date Index] [Subject Index] [Author Index] [Thread Index]
Message Nav: [Date Prev] [Date Next] [Thread Prev] [Thread Next]