resides above the last non-0xff data value in the address space. Only
do this for flash memory since writing a 0xff to flash is a no-op.
This has the affect of creating smaller output files when dumping
memory contents from flash if the program in flash does not consume
the whole memory space. It also results in shorter programming times
when avrdude is asked to load a file into flash that has lots of 0xff
filled data past the last non-0xff data value.
I think this is basically where Alexey was going with his s-record
routine, but this should have a similar affect for all the I/O
routines. The main difference is that Alexey's also optimized 0xff
from the beginning of the address space and was not limited to flash.
I think that these optimizations should be limited to the flash since
it is currently the only memory that treats 0xff as special.
git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@331 81a1dc3b-b13d-400b-aceb-764788c761c2
This was intended to be used for identifying code in the field for
incoming bug reports, but I've never really found it all that useful.
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supports paged reads and writes. This greatly decreases the
program/verify time from about 4.5 minutes down to about 10 seconds in
a 12K program size test case.
Print out the hardware and firmware version for the STK500 if verbose
is enabled.
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that programmers other than the direct parallel port connection can be
supported.
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undergone. This utilizes the last two bytes of EEPROM to maintain a
counter that is incremented each time the part is erased.
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Fix setting of status LEDs under various write-fail conditions.
Add a flag to indicate that a memory type requires the device to
possibly be powered off and back on after a write to it. This is due
to a hardware problem on some Atmel devices, see:
http://www.atmel.com/atmel/acrobat/doc1280.pdf
Add greater verbosity to the part-display code when verbose>1 to
display avrprog's encoding of the defined programming instructions.
This is primarily for debugging purposes.
Part updates:
* add the AT90S4414 part
* add fuse and lock bit access instructions for the AT90S1200,
AT90S4434, and AT90S8515.
* add the pwroff_after_write flag to the fuse bits for the AT90S2333
and AT90S4433 parts
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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.
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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.
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Rename the poorly chosen name "bank" to "page" for page addressing.
Atmel calls it "page" in their documentation.
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checking on the memory parameters for parts that do bank addressing.
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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.
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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.
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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.
git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@50 81a1dc3b-b13d-400b-aceb-764788c761c2
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.
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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.
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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.
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more modular pieces.
Also, accept command abbreviations as long as they are not ambiguous.
git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@38 81a1dc3b-b13d-400b-aceb-764788c761c2
Brian S. Dean