On Wed, May 9, 2012 at 10:06 AM, Xiaofan Chen <[email protected]> wrote:
>> Just a check... You're using the same board config file both times.
>> Are you changing it to use the ftdi driver instead of the old ft2232?
>> Both can be configured in the same OpenOCD binary and only the
>> configuration files select which one to use. There's a complete new
>> set of files in the interface/ftdi/ subdir that selects my driver
>> instead of the old one.
>
> I installed the official version to /usr/local and the mpsse version
> to ~/bin so that I can compared the two. But now I know the problem.
> I thought I edited the configure file to add --enable-ftdi for the mpsse
> version but I just checked and I did not. And then I was using the same
> board file without creating a version of the board file for the mpsse
> (use interface/ftdi/luminary.cfg instead of interface/luminary.cfg).
>
> So I need to redo the build and the test. Sorry about the noise.
>
I just tested with TI/Luminary EK-LM3S1968 and here
are the results.
There are actually no differences at all.
mymacmini:build_mpsse xiaofanc$ cat myconfig_git.sh
LDFLAGS="-L/usr/local/lib -lusb-1.0" ../configure
--enable-maintainer-mode --prefix=/Users/xiaofanc/bin --enable-jlink
--enable-ftdi --enable-ft2232_libftdi --enable-stlink --disable-werror
mymacmini:board xiaofanc$ cp ek-lm3s1968.cfg ek-lm3s1968_mpsse.cfg
mymacmini:board xiaofanc$ nano ek-lm3s1968.cfg
mymacmini:board xiaofanc$ pwd
/Users/xiaofanc/bin/share/openocd/scripts/board
mymacmini:board xiaofanc$ diff ek-lm3s1968.cfg ek-lm3s1968_mpsse.cfg
13c13
< source [find interface/ftdi/luminary.cfg]
---
> source [find interface/luminary.cfg]
+++++++++
MPSSE version:
mymacmini:lm3s1968 xiaofanc$ ~/bin/bin/openocd -f board/ek-lm3s1968_mpsse.cfg
Open On-Chip Debugger 0.6.0-dev-00448-gac053a2 (2012-05-09-19:01)
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
Error: couldn't read enough bytes from FT2232 device (78 < 81)
Error: couldn't read from FT2232
Error: Trying to use configured scan chain anyway...
Warn : Bypassing JTAG setup events due to errors
Info : lm3s1968.cpu: hardware has 6 breakpoints, 4 watchpoints
Info : accepting 'telnet' connection from 4444
target state: halted
target halted due to debug-request, current mode: Thread
xPSR: 0x81000000 pc: 0x000011a8 msp: 0x200000f0
500 kHz
auto erase enabled
wrote 262144 bytes from file demo4.bin in 8.335512s (30.712 KiB/s)
1000 kHz
flash 'stellaris' found at 0x00000000
auto erase enabled
wrote 262144 bytes from file demo4.bin in 5.256349s (48.703 KiB/s)
2000 kHz
auto erase enabled
wrote 262144 bytes from file demo4.bin in 4.357144s (58.754 KiB/s)
3000 kHz
auto erase enabled
wrote 262144 bytes from file demo4.bin in 4.348687s (58.868 KiB/s)
++++++++++++++
Non-MPSSE version
mymacmini:lm3s1968 xiaofanc$ openocd -f board/ek-lm3s1968.cfg
Open On-Chip Debugger 0.6.0-dev-00543-g908ee4d (2012-05-05-20:28)
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
Error: couldn't read enough bytes from FT2232 device (51 < 81)
Error: couldn't read from FT2232
Error: Trying to use configured scan chain anyway...
Warn : Bypassing JTAG setup events due to errors
Info : lm3s1968.cpu: hardware has 6 breakpoints, 4 watchpoints
Info : accepting 'telnet' connection from 4444
target state: halted
target halted due to debug-request, current mode: Thread
xPSR: 0x01000000 pc: 0x000011ae msp: 0x200000f0
flash 'stellaris' found at 0x00000000
500 kHz
auto erase enabled
wrote 262144 bytes from file demo4.bin in 8.341610s (30.690 KiB/s)
1000 kHz
auto erase enabled
wrote 262144 bytes from file demo4.bin in 5.227277s (48.974 KiB/s)
2000 kHz
auto erase enabled
wrote 262144 bytes from file demo4.bin in 4.353256s (58.807 KiB/s)
3000 kHz
auto erase enabled
wrote 262144 bytes from file demo4.bin in 4.346641s (58.896 KiB/s)
^C
>> mymacmini:lm3s1968 xiaofanc$ openocd -f board/ek-lm3s1968.cfg
>> Open On-Chip Debugger 0.6.0-dev-00543-g908ee4d (2012-05-05-20:28)
>> 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
>> Error: couldn't read enough bytes from FT2232 device (70 < 81)
>> Error: couldn't read from FT2232
>> Error: Trying to use configured scan chain anyway...
>
> These errors highlight the need for a new driver. It's not
> about performance.
Unfortunately both have the same problem.
BTW, I encountered quite some stability issue with
0.6.0-dev-00543-g908ee4d (program hang) which
the later 0.6.0-dev-00543-g908ee4d and current git
do not have. Maybe you want to rebase the patches
on current git.
--
Xiaofan
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