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about GDB download speed.
- From: user new <new_user_0072000 at yahoo dot com dot cn>
- To: ecos-discuss at sources dot redhat dot com
- Date: Wed, 28 Apr 2004 11:57:27 +0800 (CST)
- Subject: [ECOS] 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
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