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patch #7437 modifications to Bus Pirate module

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patch #7686 Updating buspirate ascii mode to current firmware, use AUX
            as clock generator, and setting of serial receive timeout
  * buspirate.c: added paged_write, changed binary mode setup/detection,
                 added clock output on AUX pin
  * avrdude.1: updated documentation
  * doc/avrdude.texi: updated documentation


git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@1052 81a1dc3b-b13d-400b-aceb-764788c761c2
This commit is contained in:
Rene Liebscher
2012-01-31 19:01:00 +00:00
parent c1095de822
commit fa5e2bb849
4 changed files with 320 additions and 83 deletions
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60
doc/avrdude.texi
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@@ -919,35 +919,51 @@ good candidates with the latches driven by the appropriate reset pin (cs,
aux or aux2). Otherwise the SPI traffic in one active circuit may interfere
with programming the AVR in the other design.
@item @samp{speed=@var{0..7}}
@table @code
@item 0
30 kHz (default)
@item 1
125 kHz
@item 2
250 kHz
@item 3
1 MHz
@item 4
2 MHz
@item 5
2.6 MHz
@item 6
4 MHz
@item 7
8 MHz
@end table
@item @samp{spifreq=@var{0..7}}
@multitable @columnfractions .05 .3
@item @code{0} @tab 30 kHz (default)
@item @code{1} @tab 125 kHz
@item @code{2} @tab 250 kHz
@item @code{3} @tab 1 MHz
@item @code{4} @tab 2 MHz
@item @code{5} @tab 2.6 MHz
@item @code{6} @tab 4 MHz
@item @code{7} @tab 8 MHz
@end multitable
@item @samp{ascii}
Use ASCII mode even when the firmware supports BinMode (binary mode).
Attempt to ASCII mode even when the firmware supports BinMode (binary mode).
BinMode is supported in firmware 2.7 and newer, older FW's either don't
have BinMode or their BinMode is buggy. ASCII mode is slower and makes
the above
@samp{reset=}
and
@samp{speed=}
parameters unavailable.
@samp{spifreq=}
parameters unavailable. Be aware that ASCII mode is not guaranteed to work
with newer firmware versions, and is retained only to maintain compatability
with older firmware versions.
@item @samp{nopagedwrite}
Firmware versions 5.10 and newer support a binary mode SPI command that enables
whole pages to be written to AVR flash memory at once, resulting in a
significant write speed increase. If use of this mode is not desirable for some
reason, this option disables it.
@item @samp{cpufreq=@var{125..4000}}
This sets the @emph{AUX} pin to output a frequency of @var{n} kHz. Connecting
the @emph{AUX} pin to the XTAL1 pin of your MCU, you can provide it a clock,
for example when it needs an external clock because of wrong fuses settings.
This setting is only available in ASCII mode. (The lower limit was chosen so
the CPU frequency is at least for four times the SPI frequency which is in
ASCII mode 30kHz.)
@item @samp{serial_recv_timeout=@var{1...}}
This sets the serial receive timeout to the given value.
The timeout happens every time avrdude waits for the BusPirate prompt.
Especially in ascii mode this happens very often, so setting a smaller value
can speed up programming a lot.
The default value is 100ms. Using 10ms might work in most cases.
@end table
@item Wiring