This fixes EEPROM access using the STK500V2 programmer, partially
undoing part of a previous general fixup commit. Choose the correct
read/write operations with the stk500v2 program function - the correct
one depends on the memory type. EEPROM is byte addressable so uses
read/write. FLASH is word addressable and so uses read_lo/write_lo.
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that way. ;-) For those who want the 19200 Bd one, add "jtag2slow".
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to 'i' (input). Even though this bit should be ignored, it should not
be changed. The 'x' setting sets the bit to zero which programs it
and could cause undefined behaviour. Setting to 'i' enables it to be
rewritten to its old value.
A better solution might be to read the fuse byte, apply the new value
while leaving the 'x' bit alone, then writing the value back. The
current fix is a workaround which allows the developer to change the
bit.
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#13693, #13871, and #14212.
This provides bug fixes to the STK500V2 programmer type. From the
patch information:
- incorrect token used from avrdude.conf.in
- wrong command sent to programmer, hence no write to eeprom.
- programmer was said to start writing at 0x0000 and continue page
by page and was not repositionned when a gap was found in the
hex file, or when the hex file start address was not
0x0000. Hence the verify procedure was correct, not the write
procedure.
- speed up of flash write to skip empty pages (full of 0xFF) by
re-enabling a dedicated function for that task.
- stk500v2_paged_load() was not returning the number of byte read,
so empty hex files were generated when reading memory.
Submitted by: Bernard Fouch <bernard.fouche@kuantic.com>
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appears to have a complete XML description right now.
Document all the recently added new devices: AT90PWM2/3,
ATmega164/324/644, ATmega329x/649x, ATtiny25/45/85.
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all the details right now, so some of the parameters are guessed.
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changes to butterfly.c include:
. do not exit for unsupported devices but return -1 from the init function
instead; that way the -F option can be used to continue anyway
. honor the -b option as arbitrary bootloaders could be implemented with
any baud rate, not just the fixed 19200 Bd used by the butterfly
. implement functionality to read the fuse and lock bits, and write the
(boot) lock bits, resp.
. fix the signature byte order
The remaining files document the new functionality.
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Iff enter_progmode failed with RSP_ILLEGAL_JTAG_ID, give the user a
hint that their JTAGEN fuse might be unset.
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Now loading flash works on these devices even for simple parallel ISP
adapters.
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. Implement the new EECRAddress field in the device descriptor that is
required by the 4.x firmware; make an uneducated guess about what
firmware requires what length of device descriptor -- perhaps Atmel
can be convinced to publish an official matrix for that.
. Specify EECR in the config file where required. Obviously, only
locations that differ from the 0x3c default are mentioned in the
XML files, so by now, this only affects the AT90CAN128 for us.
. After clarification with Atmel, EnablePageProgramming should really
default to 1, and only cleared if specified by an XML parameter. So
far, only the XML files for the ATmega256x and ATmega406 do specify
it at all, and they specify a 1, too.
. Drop the entire OCDEN fuse heuristic. If OCDEN is unprogrammed at
startup, issue a warning that single-byte EEPROM updates won't be
possible. Leave it to the user to program the fuse if desired.
That way, we won't run into any issue of prematurely wearing out the
hfuse EEPROM cell. Interestingly enough, this also solved the
problem of the target not restarting from scratch upon sign-off.
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Walthinsen, as well as JTAG ICE mkII support (by me).
Erik's submission has been cleaned up a little bit, mostly to add his
name and the current year to the copyright of the new file, remove
trailing white space before importing the files, and fix the minor
syntax errors in his avrdude.conf.in additions (missing semicolons).
The JTAG ICE mkII support should be considered alpha to beta quality
at this point. Few things are still to be done, like defering the
hfuse (OCDEN) tweaks until they are really required. Also, for
reasons not yet known, the target MCU doesn't start to run after
signing off from the ICE, it needs a power-cycle first (at least on my
STK500).
Note that for the JTAG ICE, I did change a few things in the internal
API. Notably I made the serial receive timeout configurable by the
backends via an exported variable (done in both the Posix and the
Win32 implementation), and I made the serial_recv() function return a
-1 instead of bailing out with exit(1) upon encountering a receive
timeout (currently only done in the Posix implementation). Both
measures together allow me to receive a datastreem from the ICE at 115
kbps on a somewhat lossy PCI multi-UART card that occasionally drops a
character. The JTAG ICE mkII protocol has enough of safety layers to
allow recovering from these events, but the previous code wasn't
prepared for any kind of recovery. The Win32 change for this still
has to be done, and the traditional drivers need to be converted to
exit(1) upon encountering a timeout (as they're now getting a -1
returned they didn't see before in that case).
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encoding is correct, specifically the address bits don't exactly match
those of the preliminary datasheet that I have, but I don't see how
they could be right. Tested with STK500 and it works there.
Instruction encodings have not been tested due to lack of a parallel
port on my Mac.
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was based on a typo in the datasheet which Atmel agreed is going to be
fixed.
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* The second poll value for flash is corrected for all devices
* Delays are corrected for all devices, I have a datasheet for on my
harddisk
* mega161 is added
* avr910_devcode added for all devices except mega64, mega162,
mega169 and mega8535. Numbers are taken from uisp-source.
Contributed by Jan-Hinnerk Reichert <jan-hinnerk_reichert@hamburg.de>
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Contributed by Erik Christiansen <erik@dd.nec.com.au>
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stolen from the AT90S8515 since the datasheet says it's the same there.
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Add the supported programmer list to the manual.
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Submitted by Larry Barello <larryba@barello.net>.
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Extend ATmega8 calibration memory to support all 4 calibration bytes.
Savannah bug #3835. Submitted by Francisco T. A. Silva
<ftas@geodigitus.com.br>.
Add a few AVR910 programmer device codes. Savannah bug #3569 - sorry
I can't tell who submitted this to give proper credit.
Add support for the ATtiny12. Submitted by Pontifex <pontifex@isys.ca>
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Daniel Williamson <dannyw@maconmgt.co.uk>
and
Ruwan Jayanetti <rjayanetti@sri.crossvue.com>
The resulting part definition used was actually somewhat of a merge of
the two submitted definitions.
Thanks for the contributions!
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available.
* avr910.c (avr910_vfy_cmd_sent): New function.
(avr910_chip_erase): Add support for chip erase.
(avr910_enter_prog_mode): New function.
(avr910_leave_prog_mode): New function.
(avr910_initialize): Add code to select device type and enter prog mode.
(avr910_close): Leave programming mode before closing serial port.
(avr910_read_sig_bytes): New function.
(avr910_initpgm): Add avr910_read_sig_bytes method to pgm initializer.
* avrdude.conf.in: Add note about deprecating devicecode.
Change all occurences of devicecode to stk500_devcode.
Add avr910_devcode to a few parts for testing.
* avrpart.h (struct avrpart): Change devicecode field to stk500_devcode.
(struct avrpart): Add avr910_devcode field.
* config_gram.y: Add K_STK500_DEVCODE and K_AVR910_DEVCODE tokens.
Generate an error if devicecode is found in the config file.
Handle parsing of avr910_devcode and stk500_devcode.
* lexer.l: Handle parsing of avr910_devcode and stk500_devcode.
* pgm.c: Initialize pgm->read_sig_bytes field.
* pgm.h: Add pgm->read_sig_bytes field.
* stk500.c: Use stk500_devcode instead of devicecode.
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* config_gram.y: Add parsing of avr910 programmer.
* lexer.l: Add avr910 token.
* avr910.c: [this is still work in progress]
Add some debug output.
Add probe for programmer presense.
* main.c: Set port to default_serial if programmer type is avr910.
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Brian S. Dean
Joerg Wunsch
Jan-Hinnerk Reichert
Eric Weddington
Theodore A. Roth