[avrdude-dev] [bug #28744] Can't load bootloader to xmega128a1

[giuliano carlini]

URL:
  <http://savannah.nongnu.org/bugs/?28744>

                 Summary: Can't load bootloader to xmega128a1
                 Project: AVR Downloader/UploaDEr
            Submitted by: gorillacoder
            Submitted on: Wed 27 Jan 2010 07:43:56 AM GMT
                Category: None
                Severity: 3 - Normal
                Priority: 5 - Normal
              Item Group: None
                  Status: None
                 Privacy: Public
             Assigned to: None
         Originator Name: giuliano carlini
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any

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Details:

I'm using the lates AVR CrossPack as the basis of my toolchain. I've replaced
avrdude 5.8 with avrdude 5.10 that I built myself. I had to patch avrdude to
correctly use libusb.

I'm using avr-gcc 4.3.3 to compile test.c to test.o

avr-gcc -g -Wall -O2 -mmcu=atxmega128a1 -DF_CPU=32000000L -c -o test.o test.c


I'm using avr-ld 2.19 to link test.o into test.elf placing the text section
at 0x20000, or 128K, the start of the xmega128a1's bootstrap section.

avr-gcc -g -Wall -O2 -mmcu=atxmega128a1
-DF_CPU=32000000L  -Wl,--section-start=.text=0x20000 -o test.elf test.o 

I'm using avr-objcopy 2.19 to convert test.elf into
test.hex (Intel format) and test.srec (Motorola format).

avr-objcopy -j .text -j .data -O ihex test.elf test.hex
avr-objcopy -j .text -j .data -O srec test.elf test.srec 

So, I then try to use avrdude 5.10 to burn my bootloader, but get a
verification error. Doubt it matters, but I'm using an avr dragon as my
programmer.

avrdude  -c dragon_jtag -e -P usb -p atxmega128a1 -U boot:w:test.hex 

avrdude: AVR device initialized and ready to accept instructions

Reading | ################################################## | 100% 0.02s

avrdude: Device signature = 0x1e974c
avrdude: erasing chip
avrdude: reading input file "test.hex"
avrdude: input file test2.hex auto detected as Intel Hex
avrdude: ERROR: address 0x20010 out of range at line 2 of test.hex
avrdude: write to file 'test.hex' failed

avrdude done.  Thank you.

So I tried to link at address 0.

avrdude  -c dragon_jtag -e -P usb -p atxmega128a1 -U boot:w:test.hex

avrdude: AVR device initialized and ready to accept instructions

Reading | ################################################## | 100% 0.02s

avrdude: Device signature = 0x1e974c
avrdude: erasing chip
avrdude: reading input file "test.hex"
avrdude: input file test.hex auto detected as Intel Hex
avrdude: writing boot (636 bytes):

Writing | ################################################## | 100% 0.18s

avrdude: 636 bytes of boot written
avrdude: verifying boot memory against test.hex:
avrdude: load data boot data from input file test.hex:
avrdude: input file test.hex auto detected as Intel Hex
avrdude: input file test.hex contains 636 bytes
avrdude: reading on-chip boot data:

Reading | ################################################## | 100% 0.13s

avrdude: verifying ...
avrdude: verification error, first mismatch at byte 0x0000
         0x0c != 0xff
avrdude: verification error; content mismatch

avrdude done.  Thank you.

Then I tried the same use "flash" rather than "boot" at both address 0 and
2000. At address 2000:

avrdude  -c dragon_jtag -e -P usb -p atxmega128a1 -U flash:w:test.hex 

avrdude: AVR device initialized and ready to accept instructions

Reading | ################################################## | 100% 0.02s

avrdude: Device signature = 0x1e974c
avrdude: erasing chip
avrdude: reading input file "test.hex"
avrdude: input file test.hex auto detected as Intel Hex
avrdude: writing flash (131708 bytes):

Writing | ################################################## | 100% 33.72s

avrdude: 131708 bytes of flash written
avrdude: verifying flash memory against test.hex:
avrdude: load data flash data from input file test.hex:
avrdude: input file test.hex auto detected as Intel Hex
avrdude: input file test.hex contains 131708 bytes
avrdude: reading on-chip flash data:

Reading | ################################################## | 100% 26.68s

avrdude: verifying ...
avrdude: verification error, first mismatch at byte 0x20000
         0x0d != 0xff
avrdude: verification error; content mismatch

avrdude done.  Thank you.

At address 0 and application section it burns fine, but at address 0 in the
application section, and I need it at 0x2000 in the bootloader section.

I retried all of the above using srecs with the same results.

I've attached test.c; test0.hex, loaded at address 0; and test2.hex, loaded
at address 0x20000. 




    _______________________________________________________

File Attachments:


-------------------------------------------------------
Date: Wed 27 Jan 2010 07:43:56 AM GMT  Name: test.c  Size: 318B   By:
gorillacoder

<http://savannah.nongnu.org/bugs/download.php?file_id=19553>
-------------------------------------------------------
Date: Wed 27 Jan 2010 07:43:56 AM GMT  Name: test0.hex  Size: 2kB   By:
gorillacoder

<http://savannah.nongnu.org/bugs/download.php?file_id=19554>
-------------------------------------------------------
Date: Wed 27 Jan 2010 07:43:56 AM GMT  Name: test2.hex  Size: 2kB   By:
gorillacoder

<http://savannah.nongnu.org/bugs/download.php?file_id=19555>

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