Re: [Openocd-development] OpenOCD libftdi and ftd2xx benchmark

[Laurent G. <lau...@am...>]

>
> On Wed, Jul 13, 2011 at 10:55 PM, Xiaofan Chen <xiaofanc at gmail.com <https://lists.berlios.de/mailman/listinfo/openocd-development>> wrote:
> >/ Under Linux, ftd2xx 1.04 (based on libusb-1.0.8) does not seem to offer
> />/ any advantage than libftdi (tested with 0.19)
> /
> This is the same as reported last time.
>
> >/ mcuee at Ubuntu <https://lists.berlios.de/mailman/listinfo/openocd-development>:~/Desktop/build/openocd/lm3s1968$ openocd-d2xx -f
> />/ board/ek-lm3s1968.cfg
> />/ Open On-Chip Debugger 0.5.0-dev-00954-g0ea76bc (2011-07-13-20:28)
> />/ Licensed under GNU GPL v2
> />/ For bug reports, read
> />/        http://openocd.berlios.de/doc/doxygen/bugs.html
> />/ Info : only one transport option; autoselect 'jtag'
> />/ 500 kHz
> />/ Error: unable to get latency timer: 0
> />/ Error: ftd2xx 1.04 detected - this has known issues with
> />/ FT_GetLatencyTimer, upgrade to a newer version
> />/ Info : device: 4 "2232C"
> />/ Info : deviceID: 67353817
> />/ Info : SerialNumber: 070200A1A
> />/ Info : Description: Stellaris Evaluation Board A
> />/ 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: 0x0001e340 msp: 0x20000200
> />/ flash 'stellaris' found at 0x00000000
> />/ auto erase enabled
> />/ wrote 262144 bytes from file ./demo.bin in 50.572987s (5.062 KiB/s)
> />/ 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: 0x0001e340 msp: 0x20000200
> />/ 1200 kHz
> />/ flash 'stellaris' found at 0x00000000
> />/ auto erase enabled
> />/ wrote 262144 bytes from file ./demo.bin in 42.674957s (5.999 KiB/s)
> />/ ^C
> />/
> />/ mcuee at Ubuntu <https://lists.berlios.de/mailman/listinfo/openocd-development>:~/Desktop/build/openocd/lm3s1968$ openocd -f board/ek-lm3s1968.cfg
> />/ Open On-Chip Debugger 0.5.0-dev-00954-g0ea76bc (2011-07-13-20:21)
> />/ Licensed under GNU GPL v2
> />/ For bug reports, read
> />/        http://openocd.berlios.de/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: 0x0001e340 msp: 0x20000200
> />/ 1200 kHz
> />/ flash 'stellaris' found at 0x00000000
> />/ auto erase enabled
> />/ wrote 262144 bytes from file ./demo.bin in 42.677986s (5.998 KiB/s)
> />/ ^C
> /
> Then I did similar test under Windows with libftdi-0.19 (with
> Liminary's FTDI driver
> and libusb-win32 filter driver). The speed is faster than under Linux. Kind of
> interesting. I will try the ftd2xx Windows build later.
>
> D:\work\openocd\build_cxf\openocd_14Jul2011_mingw32\bin>openocd.exe -f
> board\ek-lm3s1968.cfg
> Open On-Chip Debugger 0.5.0-dev-00954-g0ea76bc-dirty (2011-07-14-21:37)
> Licensed under GNU GPL v2
> For bug reports, read
>         http://openocd.berlios.de/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: 0x0001e340 msp: 0x20000200
> 1200 kHz
> flash 'stellaris' found at 0x00000000
> auto erase enabled
> wrote 123904 bytes from file ./demo.bin in 11.093000s (10.908 KiB/s)
>
> -- 
> Xiaofan
>   
Do you have a Amontec JTAGkey-2 (High-speed USB 2.0) ?

If yes, please do the same comparaison with libusb and d2xx on Linux and 
windows, and with the Amontec JTAGkey D2XX device driver package WHQL 
certified .

Regards,
Laurent
 http://www.amontec.com/jtagkey.shtml

> ------------------------------------------------------------------------