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Diffstat (limited to 'flashrom.8')
| -rw-r--r-- | flashrom.8 | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/flashrom.8 b/flashrom.8 index 102bd622f..90afced62 100644 --- a/flashrom.8 +++ b/flashrom.8 @@ -637,6 +637,20 @@ where can be .BR 30k ", " 125k ", " 250k ", " 1M ", " 2M ", " 2.6M ", " 4M " or " 8M (in Hz). The default is the maximum frequency of 8 MHz. +.sp +An optional pullups parameter specifies the use of the Bus Pirate internal pull-up resistors. This may be +needed if you are working with a flash ROM chip that you have physically removed from the board. Syntax is +.sp +.B " flashrom -p buspirate_spi:pullups=state" +.sp +where +.B state +can be +.BR on " or " off . +More information about the Bus Pirate pull-up resistors and their purpose is available at +.nh +.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 "dediprog " programmer An optional |