-------- Mensaje reenviado --------
Asunto: Re: [OpenOCD-devel] [openocd:tickets] #117 PIC32MX bulk write
algorithm failure
Fecha: Sun, 31 Jan 2016 10:06:01 +0100
De: Salvador <[email protected]>
Para: Ticket 117 <[email protected]>
The code you are looking for is in file mips_mk4.c in function
mips_m4k_bulk_write_memory():
......................................
if (address <= fast_data_area->address + fast_data_area->size &&
fast_data_area->address <= address + count) {
.....................................
The purpose of the code is to warn the user, it's going to overwrite the
handler memory.
A simple way to reproduce the fail (with default settings in pic32mx.cfg):
.........................................
> mww 0xa0000880 0 0x21
fast_data (0xa0000800) is within write area (0xa0000880-0xa00008a1).
Change work-area-phys or load_image address!
Falling back to non-bulk write
.........................................
Fast data handler starts at 0xa0000800. The length is 0x80
(MIPS32_FASTDATA_HANDLER_SIZE).
The end address is 0xa000087c.
Obviously outside write area.
Problems:
-Better comment
-Recheck limits, perhaps "<" instead of "<=" solves the problem.
-The final write address is wrong, at least should be multiple of 4.
Feel free to send a patch.
El 29/01/16 a las 22:20, ethereal escribió:
------------------------------------------------------------------------
*[tickets:#117] <http://sourceforge.net/p/openocd/tickets/117/>
PIC32MX bulk write algorithm failure*
*Status:* new
*Milestone:* 0.9.0
*Created:* Fri Jan 29, 2016 09:20 PM UTC by ethereal
*Last Updated:* Fri Jan 29, 2016 09:20 PM UTC
*Owner:* nobody
Hi,
When programming a PIC32MX250F128B, the bulk write algorithm fails
with the following message:
Error: fast_data (0xa00008d8) is within write area
(0xa0000958-0xa0001158).
This is consistent across different HEX files. I'll be looking over
the source code for the next little while myself, but I don't have
much hope of it being useful. If someone with more familiarity with
the PIC32MX code could take a look, it would be much appreciated.
Let me know what other information would be useful, and I'll try to
provide.
Thanks!
* ethereal
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