changelog-2001

AVR的USB文件

	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  <[e-mail]>

	* 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  <[e-mail]>

	* 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  <[e-mail]>

	* 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  <[e-mail]>

	* 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  <[e-mail]>

	* 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  <[e-mail]>

	* 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  <[e-mail]>

	* 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  <[e-mail]>

	* 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  <[e-mail]>

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

2000-12-20  Brian S. Dean  <[e-mail]>

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

2000-08-27  Brian S. Dean  <[e-mail]>

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

2000-08-07  Brian S. Dean  <[e-mail]>

	* 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  <[e-mail]>

	* 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  <[e-mail]>

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

	* Makefile, avrprog.c: Initial check-in

	* Makefile, avrprog.c: New file.