On Sat, Apr 28, 2012 at 8:38 AM, Andreas Fritiofson
<[email protected]> wrote:
> On Fri, Apr 27, 2012 at 10:38 PM, Freddie Chopin <[email protected]> wrote:
>> This post is about the new FTDI driver by Andreas Fritiofson, using
>> libusb-1.0.
> First of all, thanks for testing!
Thanks for Peter Stuge's help, I have been able to build your
new mpsse driver under Mac OS X Lion. I will try Linux
and Windows later.
>> Flashing about 400kB to LPC1769 at 4MHz (JTAG at 399kHz) via GDB -
>> 9kB/s, using "normal OpenOCD" with libusb-win32 - 4kB/s, so the gain is
>> pretty impresive!
>
> Impressive gain but rather pathetic speed. Is it the flash or the
> algorithm that's slow for LPC17xx?
I will try LPC-2148 later.
>> Similar test for STM32, ~120kB upload, core @ 8MHz, JTAG @ 1MHz - 31kB/s
>> vs. 29kB/s, not so impressive, but that may be the limit of the flash
>> memory.
>
> Probably the flash limit, or very close to it. You should see much
> greater gains for dump_image and upload to RAM.
Now I only tested TI/Luminary LM3S1968 and the speed increase
is quite impressive compared to last time.
mymacmini:bin xiaofanc$ ./openocd -f board/ek-lm3s1968.cfg
Open On-Chip Debugger 0.6.0-dev-00448-gac053a2 (2012-05-06-09:09)
Licensed under GNU GPL v2
For bug reports, read
http://openocd.sourceforge.net/doc/doxygen/bugs.html
Info : only one transport option; autoselect 'jtag'
500 kHz
Info : clock speed 500 kHz
Info : JTAG tap: lm3s1968.cpu tap/device found: 0x3ba00477 (mfg:
0x23b, part: 0xba00, ver: 0x3)
Info : lm3s1968.cpu: hardware has 6 breakpoints, 4 watchpoints
Info : accepting 'telnet' connection from 4444
500 kHz
cortex_m3 reset_config sysresetreq
Info : JTAG tap: lm3s1968.cpu tap/device found: 0x3ba00477 (mfg:
0x23b, part: 0xba00, ver: 0x3)
target state: halted
target halted due to debug-request, current mode: Thread
xPSR: 0x01000000 pc: 0x00001330 msp: 0x20000100
flash 'stellaris' found at 0x00000000
dump_image filename address size
in procedure 'dump_image'
dumped 65536 bytes in 2.693520s (23.761 KiB/s)
dumped 131072 bytes in 5.382883s (23.779 KiB/s)
dumped 262144 bytes in 10.772668s (23.764 KiB/s)
auto erase enabled
wrote 262144 bytes from file demo3.bin in 8.257628s (31.002 KiB/s)
500 kHz
cortex_m3 reset_config sysresetreq
Info : JTAG tap: lm3s1968.cpu tap/device found: 0x3ba00477 (mfg:
0x23b, part: 0xba00, ver: 0x3)
Info : dropped 'telnet' connection
Last time's result: the flash write is never above 18KB/sec for
LM3S1968. That was about a year ago.
http://comments.gmane.org/gmane.comp.debugging.openocd.devel/17877
But I am not so sure if this is because of your mpsse driver or
the improvement in the main line. So I will report the result
using the vanilla git tree.
--
Xiaofan
------------------------------------------------------------------------------
Live Security Virtual Conference
Exclusive live event will cover all the ways today's security and
threat landscape has changed and how IT managers can respond. Discussions
will include endpoint security, mobile security and the latest in malware
threats. http://www.accelacomm.com/jaw/sfrnl04242012/114/50122263/
_______________________________________________
OpenOCD-devel mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/openocd-devel
