that programmers other than the direct parallel port connection can be
supported.
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the 'dump <memtype>' command without any address information,
and the end of memory is reached, wrap back around to zero on
the next invocation.
CHANGELOG - describe changes
main.c - update version number
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first pull /RESET low for a short period of time before enabling the
buffer chip. This sequence allows the AVR to be reset before the
buffer is enabled to avoid a short period of time where the AVR may be
driving the programming lines at the same time the programmer tries
to. Of course, if a buffer is being used, then the /RESET line from
the programmer needs to be directly connected to the AVR /RESET line
and not via the buffer chip.
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that it is tracked no matter where the erase was initiated: command
line mode or interactive mode, without code duplicaiton.
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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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Display the correct memory name in an error message (previously
hardcoded).
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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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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.
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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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Update read/write status more frequently.
Prefix ATMega parts with an 'm'.
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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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assigned, otherwise, we may apply the exit specs to the wrong pins.
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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.
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file. This makes supporting other programmers much easier.
Rename AVRprog.pdf to avrprog.pdf.
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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.
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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.
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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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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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main.c : drop the giant usage text now that we have a man page.
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more modular pieces.
Also, accept command abbreviations as long as they are not ambiguous.
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bsd