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Add support for the Microchip PICkit2 as an SPI programmer

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This patch was inspired by the code in AVRDude (open source Atmel AVR
programmer) to support the PICkit2 written by Doug Brown [1]. The
Dediprog code in flashrom was used as the template for this code with
some reference to the ft2232 code as well.

[1] - https://github.com/steve-m/avrdude/blob/master/pickit2.c

Corresponding to flashrom svn r1881.

Signed-off-by: Justin Chevrier <jchevrier@gmail.com>
Signed-off-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
Acked-by: Stefan Tauner <stefan.tauner@alumni.tuwien.ac.at>
This commit is contained in:
Justin Chevrier
2015-02-08 21:58:10 +00:00
committed by Stefan Tauner
parent 5673450316
commit 66e554bc88
5 changed files with 582 additions and 4 deletions
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34
flashrom.8.tmpl
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@ -229,6 +229,8 @@ bitbanging adapter)
.sp
.BR "* mstarddc_spi" " (for SPI flash ROMs accessible through DDC in MSTAR-equipped displays)"
.sp
.BR "* pickit2_spi" " (for SPI flash ROMs accessible via Microchip PICkit2)"
.sp
Some programmers have optional or mandatory parameters which are described
in detail in the
.B PROGRAMMER-SPECIFIC INFORMATION
@ -736,6 +738,34 @@ More information about the Bus Pirate pull-up resistors and their purpose is ava
.BR "http://dangerousprototypes.com/docs/Practical_guide_to_Bus_Pirate_pull-up_resistors " .
Only the external supply voltage (Vpu) is supported as of this writing.
.SS
.BR "pickit2_spi " programmer
An optional
.B voltage
parameter specifies the voltage the PICkit2 should use. The default unit is Volt if no unit is specified.
You can use
.BR mV ", " millivolt ", " V " or " Volt
as unit specifier. Syntax is
.sp
.B " flashrom \-p pickit2_spi:voltage=value"
.sp
where
.B value
can be
.BR 0V ", " 1.8V ", " 2.5V ", " 3.5V
or the equivalent in mV.
.sp
An optional
.B spispeed
parameter specifies the frequency of the SPI bus. Syntax is
.sp
.B " flashrom \-p pickit2_spi:spispeed=frequency"
.sp
where
.B frequency
can be
.BR 250k ", " 333k ", " 500k " or " 1M "
(in Hz). The default is a frequency of 1 MHz.
.SS
.BR "dediprog " programmer
An optional
.B voltage
@ -992,7 +1022,7 @@ needs TCP access to the network or userspace access to a serial port.
.B buspirate_spi
needs userspace access to a serial port.
.sp
.BR dediprog ", " ft2232_spi " and " usbblaster_spi
.BR dediprog ", " ft2232_spi " and " usbblaster_spi and " pickit2_spi
need access to the USB device via libusb.
.sp
.B dummy
@ -1002,7 +1032,7 @@ needs no access permissions at all.
.BR gfxnvidia ", " drkaiser ", " satasii ", " satamv ", " atahpt" and " atavia
have to be run as superuser/root, and need additional raw access permission.
.sp
.BR serprog ", " buspirate_spi ", " dediprog ", " usbblaster_spi " and " ft2232_spi
.BR serprog ", " buspirate_spi ", " dediprog ", " usbblaster_spi " and " ft2232_spi and " pickit2_spi
can be run as normal user on most operating systems if appropriate device
permissions are set.
.sp