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| author | Francis Rowe <info@gluglug.org.uk> | 2015-05-16 08:30:04 (EDT) |
|---|---|---|
| committer | Francis Rowe <info@gluglug.org.uk> | 2015-05-16 08:30:04 (EDT) |
| commit | 979dfd8e68f01e7d2b827588ae1c3b779ef72801 (patch) | |
| tree | fee49ee314f3fb4c9f76a53efc8fb81f952eef3a /docs/install/bbb_setup.html | |
| parent | e058d319491703168280cfa50239a56193ee5d23 (diff) | |
| download | libreboot-979dfd8e68f01e7d2b827588ae1c3b779ef72801.zip libreboot-979dfd8e68f01e7d2b827588ae1c3b779ef72801.tar.gz libreboot-979dfd8e68f01e7d2b827588ae1c3b779ef72801.tar.bz2 | |
External flashing guides: don't refer to red.
Colour blindness is real, and quite common.
What's worse, 3.3V on an ATX PSU is an orange wire, not a red
wire. Someone looking at "red" in the documentation might not
think that you mean 3.3V live/hot (red is the standard colour),
but instead they might connect the red wire from the ATX PSU
which is 5V; this will destroy the flash chip. Also, red and
orange look the same to most colour blind people.
Diffstat (limited to 'docs/install/bbb_setup.html')
| -rw-r--r-- | docs/install/bbb_setup.html | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/docs/install/bbb_setup.html b/docs/install/bbb_setup.html index e6b99a2..ebcc7d2 100644 --- a/docs/install/bbb_setup.html +++ b/docs/install/bbb_setup.html @@ -294,7 +294,7 @@ Note: flashrom can never write if the flash chip isn't found automatically. NC - - NC NC - - NC NC - - NC - 18 - - 3.3V PSU RED + 18 - - 3.3V (PSU) 22 - - NC - this is pin 1 on the flash chip <i>This is how you will connect. Numbers refer to pin numbers on the BBB, on the plugs near the DC jack.</i> @@ -320,7 +320,7 @@ MISO 8-9 WP 18 - - 1 22 - - NC NC - - 21 - 3.3V PSU RED - - 17 - this is pin 1 on the flash chip + 3.3V (PSU) - - 17 - this is pin 1 on the flash chip <i>This is how you will connect. Numbers refer to pin numbers on the BBB, on the plugs near the DC jack.</i> You may also need to connect pins 3 and 7 (tie to 3.3V supply). These are HOLD# and WP#. @@ -338,11 +338,12 @@ GND 4-5 MOSI <b>NC = no connection</b> </p> <p> - <b><u>DO NOT</u> connect 3.3V PSU RED yet. ONLY connect this once the pomona is connected to the flash chip.</b> + <b><u>DO NOT</u> connect 3.3V (PSU) yet. ONLY connect this once the pomona is connected to the flash chip.</b> </p> <p> - <b>You also need to connect the BLACK wire from the 3.3V PSU to pin 2 on the BBB (P9 header). It is safe to install this now - (that is, before you connect the pomona to the flash chip).</b> + <b>You also need to connect the BLACK wire (ground/earth) from the 3.3V PSU to pin 2 on the BBB (P9 header). + It is safe to install this now + (that is, before you connect the pomona to the flash chip); in fact, you should.</b> </p> <p> if you need to extend the 3.3v psu leads, just use the same colour M-F leads, <b>but</b> keep all other |