ChangeLog-2001

2001-12-30  Brian S. Dean  <bsd@bsdhome.com>

	* main.c: Update version.

	* avrdude.conf.sample: Clarify a comment.

	* avrdude.conf.sample: fix address bits

	* avrdude.1: Bring up to date.

2001-12-29  Brian S. Dean  <bsd@bsdhome.com>

	* avrdude.conf.sample: Add the AVR3 progammer.

	* avr.c, avrdude.conf.sample, config_gram.y, main.c, pindefs.h:
	Fix VCC assertion.

	Make the BUFF pin a mask like VCC to allow multiple pins to be
	asserted at the same time (STK200 has two buffer enable lines).

	Add the STK200 programmer.

	Fix EEPROM address line selection for several parts.

2001-12-15  Brian S. Dean  <bsd@bsdhome.com>

	* avrdude.conf.sample: fix spelling error

2001-11-24  Brian S. Dean  <bsd@bsdhome.com>

	* Makefile:
	Change "WARNING" to "NOTE" when overwriting the avrprog.conf file.

	* avrdude.1: Add my e-mail address.

	* avrdude.conf.sample:
	Add comments about instruction formats.  Correct an instruction
	specification (cut&paste error).

2001-11-21  Brian S. Dean  <bsd@bsdhome.com>

	* avr.c, config_gram.y, lexer.l, term.c:
	In interactive mode, reset the address and length if we start dumping
	a memory type different than the previous one.

	* avr.c, avrdude.conf.sample, config_gram.y:
	Allow instruction data to be specified more flexibly, which can be
	used to make the instruction input more readable in the config file.

	* main.c: Bump version number.

	* Makefile, avr.c, avr.h, avrdude.conf.sample, config.c, config.h:
	* config_gram.y, fileio.c, fileio.h, lexer.l, main.c, term.c:
	This is a major re-write of the programming algorithms.  The Atmel
	serial programming instructions are not very orthoganal, i.e., the
	"read fuse bits" instruction on an ATMega103 is an entirely different
	opcode and data format from the _same_ instruction for an ATMega163!
	Thus, it becomes impossible to have a single instruction encoding
	(varying the data) across the chip lines.

	This set of changes allows and requires instruction encodings to be
	defined on a per-part basis within the configuration file.  Hopefully
	I've defined the encoding scheme in a general enough way so it is
	useful in describing the instruction formats for yet-to-be invented
	Atmel chips.  I've tried hard to make it match very closely with the
	specification in Atmel's data sheets for their parts.  It's a little
	more verbose than what I initially hoped for, but I've tried to keep
	it as concise as I could, while still remaining reasonably flexible.

2001-11-19  Brian S. Dean  <bsd@bsdhome.com>

	* avr.c, avr.h, avrdude.conf.sample, main.c, ppi.c, term.c:
	Add support for ATMega163.

	Add support for reading/writing ATMega163 lock and fuse bits.
	Unfortunately, in looking at the specs for other ATMega parts, they
	use entirely different instruction formats for these commands.  Thus,
	these routines won't work for the ATMega103, for example.

	Add support for sending raw command bytes via the interactive terminal
	interface.  This allows one to execute any programming instruction on
	the target device, whether or not avrprog supports it explicitly or
	not.  Thus, one can use this feature to program fuse / lock bits, or
	access any other feature of a current or future device that avrprog
	does not know how to do.

	Add in comments, an experimental instruction format in the
	configuration file.  If this works out, it would allow supporting new
	parts and non-orthoganal instructions across existing parts without
	making avrprog code changes.

2001-11-17  Brian S. Dean  <bsd@bsdhome.com>

	* avrdude.conf.sample: Add ATMEGA163 part.

2001-11-11  Brian S. Dean  <bsd@bsdhome.com>

	* main.c: output formatting

2001-11-05  Brian S. Dean  <bsd@bsdhome.com>

	* ppi.c: Get ppi.h from /usr/include, not /sys.

2001-10-31  Brian S. Dean  <bsd@bsdhome.com>

	* avr.c, avrdude.conf.sample, main.c: Correct version string.
	Update read/write status more frequently.
	Prefix ATMega parts with an 'm'.

2001-10-16  Brian S. Dean  <bsd@bsdhome.com>

	* avr.c: Change ording for memory display.

	* config_gram.y: comment

	* avr.c, avr.h, avrdude.conf.sample, config_gram.y, lexer.l, term.c:
	Fix (again, hopefully) page addressing for the ATMega parts.

	Rename the poorly chosen name "bank" to "page" for page addressing.
	Atmel calls it "page" in their documentation.

	* config_gram.y, main.c: Fix an (non)exit.
	Silence a couple of compiler warnings.

	* avr.c, avr.h, avrdude.conf.sample, config_gram.y, main.c:
	Fix ATMega flash addressing.  Add an ATMEGA16 part.  Perform sanity
	checking on the memory parameters for parts that do bank addressing.

2001-10-15  Brian S. Dean  <bsd@bsdhome.com>

	* config.c, config.h, lists.h: Add copyright.

	* config_gram.y, lexer.l, lists.c: Add copyrights.

	* Makefile: Attempt to install avrprog.conf.

	* avrdude.conf.sample: Correct dt006 pinout.

	* Makefile, lexer.l:
	Try and detect an old-style config file and print an appropriate error
	message and a suggestion for correcting it.

	* Makefile, avr.c, avrdude.1, avrdude.conf.sample: Update the man page.

	Miscellaneous minor cleanups.

2001-10-14  Brian S. Dean  <bsd@bsdhome.com>

	* Makefile, Makefile.inc, avr.c, avr.h, avrdude.conf.sample:
	* config.c, config.h, config_gram.y, lexer.l, lists.c, lists.h:
	* main.c, pindefs.h, term.c:
	Use lex/yacc for parsing the config file.  Re-work the config file
	format using a more human-readable format.

	Read part descriptions from the config file now instead of hard-coding
	them.

	Update usage().

	Cleanup unused code.

	* Makefile, avr.c, avr.h, fileio.c, term.c:
	First cut at supporting the ATmega 103 which uses bank addressing and
	has a 128K flash.

	Due to the bank addressing required, interactive update of the flash
	is not supported, though the eeprom can be updated interactively.
	Both memories can be programmed via non-interactive mode.

	Intel Hex Record type '04' is now generated as required for outputing
	memory contents that go beyond 64K.

2001-10-13  Brian S. Dean  <bsd@bsdhome.com>

	* avr.c, avr.h, fileio.c, fileio.h, main.c, ppi.c, ppi.h, term.c:
	* term.h:
	Style fixes.

	* avr.c, avr.h, fileio.c, fileio.h, main.c, term.c:
	Commit changes in preparation for support the ATMega line.

2001-10-01  Brian S. Dean  <bsd@bsdhome.com>

	* Makefile: Don't override CFLAGS.

	* avrdude.1: Correct default pin assignment.

	* avr.c, fileio.c, main.c, ppi.c, term.c:
	Remove debugging code - it served its purpose.

	Update copyrights.

2001-09-21  Brian S. Dean  <bsd@bsdhome.com>

	* main.c:
	Be sure to read the exit specs after the pin configuration has been
	assigned, otherwise, we may apply the exit specs to the wrong pins.

	* main.c: debugging

2001-09-20  Brian S. Dean  <bsd@bsdhome.com>

	* avrdude.1, avrdude.conf.sample, main.c:
	Prefix pin config entries in the config file with a "c:".  Later, I
	might make part descriptions read in this way and we can use a
	different letter for those (p).  This will make the parsing easier to
	distinguish between the entry types.

	* main.c: Initialize pin configuration description.

2001-09-19  Brian S. Dean  <bsd@bsdhome.com>

	* AVRprog.pdf, Makefile, avr.c, avrdude.1, avrdude.conf.sample:
	* avrdude.pdf, fileio.c, fileio.h, main.c, pindefs.h, term.c:
	Make the pin definitions configurable based on entries in a config
	file.  This makes supporting other programmers much easier.

	Rename AVRprog.pdf to avrprog.pdf.

2001-04-29  Brian S. Dean  <bsd@bsdhome.com>

	* avrprog-programmer.jpg: Remove this image file from the repository.

2001-04-26  Brian S. Dean  <bsd@bsdhome.com>

	* avrprog-schematic.jpg:
	Remove this image, use AVRprog.pdf as the preferred schematic for the
	programmer.

2001-04-25  Brian S. Dean  <bsd@bsdhome.com>

	* AVRprog.pdf, Makefile, avrdude.1:
	Add a schematic provided by Joerg Wunch and also update the manual
	page (also updated by Joerg) to reference the schematic.

2001-02-25  Brian S. Dean  <bsd@bsdhome.com>

	* Makefile, Makefile.inc: Automate dependency generation.

2001-02-08  Brian S. Dean  <bsd@bsdhome.com>

	* main.c: Turn off ready led when finished programming.

	* main.c: update version

	* avr.c, main.c: Correct a few comments.

	* Makefile, avr.c, term.c: Makefile : update dependencies

	avr.c : correct status led updates

	term.c : update status leds on write, make the address and length
	         arguments for dump optional.

2001-01-26  Brian S. Dean  <bsd@bsdhome.com>

	* main.c: Version 1.1

	* main.c:
	Hmmm ... cvs co -D <timestamp> does not work.  Change the revision
	timestamp to a full date/time value.

	* avr.c, fileio.c, main.c, ppi.c, term.c:
	Add a -V option to display the version information about each
	component module.  This is intended for support purposes, so that I
	can tell unambiguously what version a binary out in the field is.

	Additionally, display a revision timestamp along with the version
	number.  This also is intended for aiding in support and is the Unix
	time of the latest component module.  Having this, should allow me to
	do a "cvs co -D timestamp avrprog" and get exactly the source of the
	version that is being reported.

	* fileio.c:
	Return the maximum address (+1) written as opposed to the actual
	number of bytes written.  The presence of an Intel Hex address
	record can cause these two number to be different; but the callers
	of this routine need the former.

	* main.c:
	Fix a place where we were exiting without applying the exit-specs.

	Wrap a long line.

	* avr.c, fileio.c: avr.c: Update a comment.

	fileio.c: Properly handle all the Intel Hex record types that I can
	          find information about.

2001-01-25  Brian S. Dean  <bsd@bsdhome.com>

	* Usage, avr.h: Get rid of the Usage file.

2001-01-24  Brian S. Dean  <bsd@bsdhome.com>

	* Makefile, avr.c, avr.h, main.c, pindefs.h, ppi.c:
	Move pin definitions to their own file.

	First pass at providing feedback via the optionally connected leds.  I
	don't actually have any of these attached to my programmer, so I can
	only guess as whether this is toggling them on and off correctly.

	Also, enable and disable the optional 74367 buffer.

	* avr.h, main.c, ppi.c, ppi.h, avr.c:
	Rearrange the pinout for the programmer to be a little more logical.
	Provide hooks to support a buffered programmer, pin 6 is now used to
	enable a buffer that can be used to isolate the target system from the
	parallel port pins.  This is important when programming the target
	in-system.

	Totally change the way the pin definitions are defined.  Actually
	set/clear pins based on the way more intuitive pin number, instead of
	PPI data register, bit number combination.  A table of pin data is
	used so that any hardware inversion done by the parallel port is
	accounted for, what you set is actually what appears at the pin.
	Retain the old method for handling Vcc, however, because the hold
	method is much easier to use when setting / retrieving multiple pins
	simultaneously.

2001-01-22  Brian S. Dean  <bsd@bsdhome.com>

	* Makefile: Don't gzip the man page.

	* avrdude.1: .Nm macro fix.  Submitted by Joerg.

	* main.c: Cosmetic, don't output a preceding linefeed for usage().

	* Makefile, avr.c, avr.h, fileio.c, term.c:
	Makefile : use gzip -f for man page installation so that we don't get
	           prompted.

	avr.c avr.h fileio.c term.c :

	     Change the avrpart data structure so that the typedef AVRMEM is
	     used as an index into an array for the sizes of the memory types
	     and also for pointers to buffers that represent the chip data for
	     that memory type.  This removes a lot of conditional code of the
	     form:

			switch (memtype) {
				case AVR_FLASH :
			 	...
			}

	     Also, re-code avr_read_byte() and avr_write_byte() to properly
	     handle the flash memory type without having to tell them whether
	     they should program the high byte or the low byte - figure that
	     out from the address itself.  For flash memory type, these
	     routines now take the actual byte address instead of the word
	     address.  This _greatly_ simplifies many otherwise simple
	     operations, such a reading or writing a range of memory, by not
	     having to worry about whether the address starts on an odd byte
	     or an even byte.

2001-01-20  Brian S. Dean  <bsd@bsdhome.com>

	* avr.c, avr.h, fileio.c, fileio.h, main.c:
	Return error codes instead of exiting, thus making sure that we exit
	only via main() so that the exitspecs are properly applied.

	When reading input data from a file, remember how many bytes were read
	and write and verify only that many bytes.

	Don't complain when an input file size is smaller than the memory size
	we are programming.  This is normal.

	* fileio.c:
	Correct checksum calculation; failure to account for the value of the
	record type was causing non-zero record types to be calculated
	incorrectly.

	* Makefile, main.c: Makefile : install the man page

	main.c : drop the giant usage text now that we have a man page.

	* avrdude.1:
	Add initial man page graciously contributed by Joerg Wunsch.  Thanks
	Joerg!

2001-01-19  Brian S. Dean  <bsd@bsdhome.com>

	* term.c:
	Accept abbreviations for eeprom and flash for the dump and write
	commands.

	Fix small bug keeping 1 character command lines from being added to
	the history.

	* term.c:
	Implement enough state in cmd_dump so that if it is called with no
	arguments, it successively dumps the next chunk of data of the same
	previously specified length.

	* term.c, term.h, fileio.c, fileio.h, main.c, ppi.c, ppi.h:
	* Makefile, avr.c, avr.h, avrprog.c:
	The program was getting too large for a single file.  Split it up into
	more modular pieces.

	Also, accept command abbreviations as long as they are not ambiguous.

	* avrprog.c:
	Add ability to specify the state of the power and reset pins on
	program exit.  Default to leaving the pins in the state they were when
	we found them.

	Contributed by: Joerg Wunsch

2001-01-18  Brian S. Dean  <bsd@bsdhome.com>

	* Makefile, avrprog.c:
	Switch to using readline() for getting terminal input.  I can't seem
	to get the history capabilities working yet, but even so, it does
	better handling of the prompt and strips newlines for us, so it's
	still a win.

	Add a few new commands for terminal mode: help, sig, part, erase.
	Display rudimentory help using the help command.

	Add some function prototypes.

	* Usage, avrprog.c:
	Change -c (interactive command mode) to the more intuitive -t
	(terminal mode).

	Make binary format the default for output.

	Update the parts table with corrections for old values and add some
	new values.

2001-01-15  Brian S. Dean  <bsd@bsdhome.com>

	* avrprog.c:
	Automatically verify on-chip data with what we just programmed.

	* avrprog.c, Makefile:
	Prepare the Makefile for integration into the FreeBSD ports tree.

	Fix a few "may be used uninitialized" bugs found by -Wall.

2001-01-14  Brian S. Dean  <bsd@bsdhome.com>

	* avrprog.c: Free a buffer.

	* avrprog.c:
	Use a smarter programming algorithm - read the existing data byte
	first and only write the new one if it is different.

	Add -n option which is a test mode in which the chip is not actually
	updated.  This option does not affect writes in interactive mode.

	* avrprog.c: Add the "dump" and "write" interactive commands.

	* avrprog.c:
	Correctly produce and handle "end of record" for intel hex files.

2001-01-13  Brian S. Dean  <bsd@bsdhome.com>

	* avrprog.c:
	Re-enable writing to the chip.  I should probably should make this a
	command-line selectable option so that I don't keep forgetting and
	committing it with it disabled.

	* avrprog.c:
	Add a newline before exiting due to command line errors.  Perform a
	bit more option compatibility testing between -c, -i, and -o.

	* avrprog.c: Add input file format auto-detection support.

	* Usage, avrprog.c: Say what the defaults are.

	* avrprog-programmer.jpg, Usage, avrprog-schematic.jpg: New files.

	* avrprog.c: Correct usage text.

	* avrprog.c:
	Parameterize a few additional items per chip.  Print out all per-chip
	parameters on startup.  Use the per-chip parameters in the code
	instead of hard-coded values for the 2313.

	* avrprog.c: Fix filename assignment error.

	Clean up debugging code a little, utilize fileio() instead of making
	direct calls to b2ihex().

	* avrprog.c: A lot of general code cleanup.

	Re-work command line options to be more intuitive.

	Support Intel Hex input and output file formats.  Provide hooks to
	support Motorola S-Record as well.

	Add a few more part-specific parameters to the avrpart structure.

	Only write the flash or eeprom if the data to be written is not 0xff.

2000-12-31  Brian S. Dean  <bsd@bsdhome.com>

	* avrprog.c: Update a comment.

	* avrprog.c:
	Provide the ability to tie additionally tie pins 6-9 of the parallel
	port to Vcc in order to supply more current.

	Fix a typo on the size of the S1200's Flash.

	Bring RESET low when programming is completed.

	* avrprog.c:
	Correct pin connection comments.  Elaborate a bit on Vcc connection.

	* avrprog.c:
	Update after receiving some good feedback from Joerg Wunsch.  We
	should now be able to program AT90S1200's.

2000-12-30  Brian S. Dean  <bsd@bsdhome.com>

	* avrprog.c: Don't limit eeprom addresses.

2000-12-20  Brian S. Dean  <bsd@bsdhome.com>

	* Makefile, avrprog.c:
	Add support for the 8515.  Make the addition for other devices easier.

2000-08-27  Brian S. Dean  <bsd@bsdhome.com>

	* avrprog.c:
	Clear all bits except AVR_RESET when finished reading or programming
	the Atmel device.

2000-08-07  Brian S. Dean  <bsd@bsdhome.com>

	* avrprog.c: update announcement message

	* avrprog.c: Update announcement message.

	* avrprog.c: Return the correct return code from 'main()'.

	* avrprog.c:
	Add ppi_pulse() function and fix ppi_toggle() to actully toggle
	instead of pulse.

	Make all abnormal returns after the parallel port has been opened go
	through a single exit point at the bottom of 'main()'.

2000-08-06  Brian S. Dean  <bsd@bsdhome.com>

	* Makefile, avrprog.c: Makefile: add --pedantic compiler option

	avrprog.c:

		Add lots of comments, move getop() variable declarations to
		the top of the program.

		Add a typedef name to the AVR memory type and use it for
		function declarations.

		Add a usleep() delay in the sense loop to avoid becoming a cpu
		hog.

		Print out a version string so that folks know what version of
		the software they are running.

		Be sure and close the parallel device and the i/o file when
		terminating abnormally.

	* avrprog.c: Print out version information when invoked.

	* Makefile, avrprog.c: Makefile: Add an install target.

	avrprog.c:

	  Add license.

	  Document the header a bit better.

	  Add capability to read out and display the device signature bytes.

	  Add capability to power the device from the parallel port.

	  Eliminate debug print facility.

	  Provide 'avr_cmd()' function.

	  When memory locations don't program, generate a newline so that the
	  information is not overwritten and lost.

	  Don't print out the message about needing to specify a file if the
	  user is not requesting an operation that requires the file.

2000-08-05  Brian S. Dean  <bsd@bsdhome.com>

	* avrprog.c: Pring usage when no arguments are supplied.

	* Makefile, avrprog.c: Initial check-in

	* Makefile, avrprog.c: New file.