- **labels**: --> samg
---
** [tickets:#188] samg55 start of debug speedup**
**Status:** new
**Milestone:** 0.9.0
**Labels:** samg
**Created:** Tue Jun 05, 2018 09:20 AM UTC by Filip
**Last Updated:** Tue Jun 05, 2018 10:00 AM UTC
**Owner:** nobody
**Attachments:**
- [Screenshot at 2018-05-30
16:10:44.png](https://sourceforge.net/p/openocd/tickets/188/attachment/Screenshot%20at%202018-05-30%2016%3A10%3A44.png)
(77.7 kB; image/png)
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[at91sam4XXX.cfg](https://sourceforge.net/p/openocd/tickets/188/attachment/at91sam4XXX.cfg)
(1.6 kB; application/octet-stream)
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[at91samg5x.cfg](https://sourceforge.net/p/openocd/tickets/188/attachment/at91samg5x.cfg)
(188 Bytes; application/octet-stream)
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[atmel_samg55_xplained_pro.cfg](https://sourceforge.net/p/openocd/tickets/188/attachment/atmel_samg55_xplained_pro.cfg)
(258 Bytes; application/octet-stream)
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[cmsis-dap.cfg](https://sourceforge.net/p/openocd/tickets/188/attachment/cmsis-dap.cfg)
(218 Bytes; application/octet-stream)
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[openocd-debug.txt](https://sourceforge.net/p/openocd/tickets/188/attachment/openocd-debug.txt)
(1.5 MB; text/plain)
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[swj-dp.tcl](https://sourceforge.net/p/openocd/tickets/188/attachment/swj-dp.tcl)
(1.1 kB; text/x-tcl)
Hello,
I'm using SAMG55 xplained board with Eclipse. I made it debugging but the
behaviour is weird. The main problem is speed. It takes about 25 seconds to
start the debug session when I use default 500 kHz adaprer speed!! I tried to
raise it to 5 MHz and it results in aprox 12 seconds. Its still damn slow for
development.
I'm using gcc-arm-none-eabi-7-2017-q4-major and openocd 0.10.0-8-20180512-1921.
In Eclipse I set paths to openocd and gdb executables and used -f
board/atmel_samg55_xplained_pro.cfg and my .bin file is 460248 B long.
What happenes is it erases 0x00 - 0x38 flash sectors (57 sectors * 16 pages *
512 bytes = 466944 B), afterwards it outputs some spilled tea and starts to
write 899 sectors. The full output of openocd with -d is attached. I am not
familiar with the write procedure but it takes most of the time so I assume it
also erases the flash before writing.
Could this time be reduced somehow?
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