On Mon, May 14, 2012 at 1:24 PM, simonqian.openocd
<[email protected]> wrote:
> BTW:
> I've updated the SWD speed using my SWD patch, it can be the same speed as
> JTAG:
> Info : device id = 0x10036414
> Info : flash size = 256kbytes
> stm32x mass erase complete
> Info : Padding image section 0 with 4 bytes
> Warn : no flash bank found for address 8040000
> wrote 262144 bytes from file Versaloon.hex in 7.988457s (32.046 KiB/s)
> dumped 32768 bytes in 0.471027s (67.937 KiB/s)
>
> ________________________________
Just wondering why the STM32 has such a poor flash write speed
no matter what I use. Is this the theoretical limit?
The dump speed seems to be quite low though. The following is
my test result with the git version (using an 6-year old PC running
Windows XP).
+++ openocd.cfg ++++
source [find interface/jtagkey2.cfg]
source [find target/stm32f1x.cfg]
#source [find board/stm32vldiscovery.cfg]
$_TARGETNAME configure -event reset-start {
adapter_khz 1000
}
$_TARGETNAME configure -event reset-init {
mww 0x40022000 0x32
mww 0x40021004 0x3c0400
mww 0x40021000 0x01000883
sleep 10
mww 0x40021004 0x3c0402
sleep 10
adapter_khz 8000
}
init
reset init
poll off
stm32f1x mass_erase 0
flash write_image LCD_demo.bin 0x08000000
verify_image LCD_demo.bin 0x08000000
dump_image dump_LCD_demo.bin 0x08000000 131072
verify_image dump_LCD_demo.bin 0x08000000
stm32f1x mass_erase 0
flash write_image dump_LCD_demo.bin 0x08000000
verify_image dump_LCD_demo.bin 0x08000000
load_image LCD_demo.bin 0x20000000 bin 0x20000000 20480
reset run
shutdown
+++++++
1) D2xx driver + libusb-win32 filter driver and vanilla git
This means I am using libftdi-0.20 and libusb-win32
driver. I also tested with using libusb-win32 device driver
mode and the speed is similar).
It seems 8MHz is not achieved in this case.
C:\work\openocd\openocd_win32_bin\bin>openocd.exe -f openocd.cfg
Open On-Chip Debugger 0.6.0-dev-00550-g4257cb7 (2012-05-12-22:58)
Licensed under GNU GPL v2
For bug reports, read
http://openocd.sourceforge.net/doc/doxygen/bugs.html
Info : only one transport option; autoselect 'jtag'
1000 kHz
adapter_nsrst_delay: 100
jtag_ntrst_delay: 100
cortex_m3 reset_config sysresetreq
Info : max TCK change to: 30000 kHz
Info : clock speed 1000 kHz
Info : JTAG tap: stm32f1x.cpu tap/device found: 0x3ba00477 (mfg: 0x23b, part: 0x
ba00, ver: 0x3)
Info : JTAG tap: stm32f1x.bs tap/device found: 0x16410041 (mfg: 0x020, part: 0x6
410, ver: 0x1)
Info : stm32f1x.cpu: hardware has 6 breakpoints, 4 watchpoints
Error: stm32f1x.cpu -- clearing lockup after double fault
Polling target failed, GDB will be halted. Polling again in 100ms
Polling succeeded again
1000 kHz
Info : JTAG tap: stm32f1x.cpu tap/device found: 0x3ba00477 (mfg: 0x23b, part: 0x
ba00, ver: 0x3)
Info : JTAG tap: stm32f1x.bs tap/device found: 0x16410041 (mfg: 0x020, part: 0x6
410, ver: 0x1)
target state: halted
target halted due to debug-request, current mode: Thread
xPSR: 0x01000000 pc: 0xfffffffe msp: 0xfffffffc
7500 kHz
Info : device id = 0x20036410
Info : flash size = 128kbytes
stm32x mass erase complete
wrote 10048 bytes from file LCD_demo.bin in 0.453125s (21.655 KiB/s)
verified 10048 bytes in 0.234375s (41.867 KiB/s)
dumped 131072 bytes in 1.562500s (81.920 KiB/s)
verified 131072 bytes in 0.468750s (273.067 KiB/s)
stm32x mass erase complete
wrote 131072 bytes from file dump_LCD_demo.bin in 3.703125s (34.565 KiB/s)
verified 131072 bytes in 0.468750s (273.067 KiB/s)
10048 bytes written at address 0x20000000
downloaded 10048 bytes in 0.031250s (314.000 KiB/s)
1000 kHz
Info : JTAG tap: stm32f1x.cpu tap/device found: 0x3ba00477 (mfg: 0x23b, part: 0x
ba00, ver: 0x3)
Info : JTAG tap: stm32f1x.bs tap/device found: 0x16410041 (mfg: 0x020, part: 0x6
410, ver: 0x1)
shutdown command invoked
--
Xiaofan
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