Hi Max,
I also found GDB quite slow in the download process and I couldn't
speed it up as much as I liked. So I just switched to the mspgcc
utils...in my makefile I simply added a download phony with the
following command:
msp430-jtag -e -E Debug/${NAME}.elf
and that works just fine.
Cheers,
R.
2005/12/12, [email protected] <[email protected]>:
>
> Hi, all-
>
> I recently got back into working on the MSP430 after a few years hiatus. I'm
> using RedHat Fedora Core4 for development. I found that the msp430-gdbproxy
> from sourceforge.net wouldn't recognize the MSP430F169 I had stuffed into my
> board.
>
> Following some posts on this list, I downloaded the Aug 2005 version from
> www.soft-switch.org/downloads and found that it recognized my F169 just fine.
> Unfortunately, this version took so long to download my 8k byte program that I
> originally thought it had crashed.
>
> After talking to Steve Underwood via email, I learned that I had to increase
> the
> download block size with the new JTAG software from TI to get reasonable
> performance. I found the following .gdbinit recommended on this mailing list:
>
> set remoteaddresssize 64
> set remotetimeout 999999
> set download-write-size 512
> target remote localhost:2000
> set remote memory-write-packet-size 512
> set remote memory-write-packet-size fixed
> set remote memory-read-packet-size 512
> set remote memory-read-packet-size fixed
>
> This improved things by a factor of 10, but it was still kind of slow. I
> decided to experiment with larger block sizes to see what happened. Here are
> the results with my 8K program. My development machine is an Athlon 64 X2, so
> gdbproxy gets a whole processor to itself. For each different block size, I
> changed the "512"s in the above .gdbproxy, and restarted msp430-gdbproxy and
> insight. I then did:
>
> monitor erase all
> load a.out
>
> in the console window for each test and recorded the bits/second that gdb
> output
> after each download. Here are the results of 5 tests at each block size:
>
>
> Block Size 256 512 1024 2048 4096
>
> 1254 2416 3434 5019 6524
> 1279 2416 3434 5019 5931
> 1304 2416 3462 5019 5931
> 1359 2416 3434 5437 5931
> 1331 2416 3434 5019 5437
>
> Average 1305.4 2416 3439.6 5102.6 5950.8
>
> As you can see, I got a much higher download speed by going to larger block
> sizes. I expect that with a program larger than 8k this effect would be
> greater.
>
> Does anyone know if there is a downside to using the larger block sizes?
>
> When you start insight with the larger block sizes, you get two annoying
> dialog
> boxes asking you if you really want to use the larger block size. You need to
> click the "Yes" button to get any benefit. I may take a look at the gdb
> source
> to see if I can disable these warnings.
>
> Max Behensky
>
>
>
>
>
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