* doc/avrdude.texi: new appendix "Troubleshooting"
git-svn-id: svn://svn.savannah.nongnu.org/avrdude/trunk/avrdude@400 81a1dc3b-b13d-400b-aceb-764788c761c2
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Jan-Hinnerk Reichert
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@ -1,3 +1,7 @@
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2004-01-17 Jan-Hinnerk Reichert <hinni@despammed.com>
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* doc/avrdude.texi: new appendix "Troubleshooting"
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2004-01-12 Jan-Hinnerk Reichert <hinni@despammed.com>
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* avr910.c, avrpart.c, avrpart.h, doc/TODO:
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@ -97,10 +97,11 @@ For avrdude version @value{VERSION}, @value{UPDATED}.
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@menu
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* Introduction::
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* Command Line Options::
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* Terminal Mode Operation::
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* Command Line Options::
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* Terminal Mode Operation::
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* Configuration File::
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* Platform Dependent Information::
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* Platform Dependent Information::
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* Troubleshooting::
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@end menu
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@c
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@ -186,8 +187,8 @@ Roth.
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@cindex options
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@menu
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* Option Descriptions::
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* Example Command Line Invocations::
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* Option Descriptions::
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* Example Command Line Invocations::
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@end menu
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@c
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@ -211,7 +212,7 @@ following options are recognized:
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@item -p @var{partno}
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This is the only mandatory option and it tells AVRDUDE what type of part
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(MCU) that is connected to the programmer. The @var{partno} parameter
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is the part's id listed in the configuration file. Specify -p ? to list
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is the part's id listed in the configuration file. Specify -p ? to list
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all parts in the configuration file. If a part is unknown
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to AVRDUDE, it means that there is no config file entry for that part,
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but it can be added to the configuration file if you have the Atmel
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@ -319,7 +320,7 @@ Nightshade ALF-PgmAVR, http://nightshade.homeip.net/
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Atmel Low Cost Serial Programmer
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@itemx avrisp
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Atmel AVR ISP
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Atmel AVR ISP
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@itemx bascom
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Bascom SAMPLE programming cable
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@ -331,7 +332,7 @@ Brian Dean's Programmer, http://www.bsdhome.com/avrdude/
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Atmel Butterfly Development Board
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@itemx dt006
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Dontronics DT006
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Dontronics DT006
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@itemx pavr
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Jason Kyle's pAVR Serial Programmer
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@ -340,13 +341,13 @@ Jason Kyle's pAVR Serial Programmer
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Picoweb Programming Cable, http://www.picoweb.net/
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@itemx pony-stk200
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Pony Prog STK200
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Pony Prog STK200
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@itemx sp12
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Steve Bolt's Programmer
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Steve Bolt's Programmer
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@itemx stk200
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STK200
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STK200
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@itemx stk500
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Atmel STK500
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@ -405,7 +406,7 @@ The `/RESET' line will be deactivated at program exit, thus allowing the
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MCU target program to run while the programming hardware remains
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connected.
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@itemx vcc
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@itemx vcc
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This option will leave those parallel port pins active (i. e. high) that
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can be used to supply `Vcc' power to the MCU.
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@ -998,7 +999,7 @@ part
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@end example
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@menu
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* Instruction Format::
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* Instruction Format::
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@end menu
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@c
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@ -1046,7 +1047,7 @@ instruction for an AT90S2313 AVR part could be encoded as:
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@example
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read = "1 0 1 0 0 0 0 0 x x x x x x x x",
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read = "1 0 1 0 0 0 0 0 x x x x x x x x",
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"x a6 a5 a4 a3 a2 a1 a0 o o o o o o o o";
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write = "1 1 0 0 0 0 0 0 x x x x x x x x",
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@ -1101,12 +1102,12 @@ problem with the at90s4433/2333's; see the at90s4433 errata at:
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@c
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@c Node
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@c
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@node Platform Dependent Information, , Configuration File, Top
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@node Platform Dependent Information, Troubleshooting, Configuration File, Top
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@appendix Platform Dependent Information
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@menu
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* Unix::
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* Windows::
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* Unix::
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* Windows::
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@end menu
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@c
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@ -1542,4 +1543,55 @@ line driven and for writing the batch files.
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@end itemize
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@c
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@c Node
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@c
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@node Troubleshooting, ,Platform Dependent Information ,Top
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@appendix Troubleshooting
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@itemize @bullet
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@item
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Problem: I'm using a serial programmer under Windows and get the following
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error:
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@code{avrdude: serial_open(): can't set attributes for device "com1"},
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Solution: This problem seems to appear with certain versions of Cygwin. Specifying
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@code{"/dev/com1"} instead of @code{"com1"} should help.
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@item
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Problem: I'm using linux and my AVR910 programmer is really slow.
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Solution (short): @code{setserial @var{port} low_latency}
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Solution (long):
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There are two problems here. First, the system may wait some time before it
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passes data from the serial port to the program. Under Linux the following
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command works around this (you may need root privileges for this).
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@code{setserial @var{port} low_latency}
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Secondly, the serial interface chip may delay the interrupt for some time.
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This behaviour can be changed by setting the FIFO-threshold to one. Under Linux this
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can only be done by changing the kernel source in @code{drivers/char/serial.c}.
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Search the file for @code{UART_FCR_TRIGGER_8} and replace it with @code{UART_FCR_TRIGGER_1}. Note that overall performance might suffer if there
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is high throughput on serial lines. Also note that you are modifying the kernel at
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your own risk.
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@item
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Problem: I'm not using linux and my AVR910 programmer is really slow.
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Solutions: The reasons for this are the same as above.
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If you know how to work around this on your OS, please let us know.
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@end itemize
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@bye
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