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authorThom Johansen <thomj@rockbox.org>2008-02-13 13:32:44 +0000
committerThom Johansen <thomj@rockbox.org>2008-02-13 13:32:44 +0000
commitc479b9975d90de77c8471c91d0d3db8513100add (patch)
tree32f245ced34c5e08764c685ce244c48d52293623 /manual/plugins/alpinecdc.tex
parent09fc078bf57e44c7168073360ece3565e81d4a5d (diff)
downloadrockbox-c479b9975d90de77c8471c91d0d3db8513100add.tar.gz
rockbox-c479b9975d90de77c8471c91d0d3db8513100add.zip
FS #8340 by David Bishop. Remove contractions from the manual, as this seems to be common practice in this format and makes it easier to read for non-native english speakers. New manual work should try to adhere to this.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@16302 a1c6a512-1295-4272-9138-f99709370657
Diffstat (limited to 'manual/plugins/alpinecdc.tex')
-rw-r--r--manual/plugins/alpinecdc.tex8
1 files changed, 4 insertions, 4 deletions
diff --git a/manual/plugins/alpinecdc.tex b/manual/plugins/alpinecdc.tex
index 008bb62975..8d0fcee746 100644
--- a/manual/plugins/alpinecdc.tex
+++ b/manual/plugins/alpinecdc.tex
@@ -13,11 +13,11 @@ Hookup to Archos works by connecting the headphone output including the remote
13pin (you need a 4-ring 3.5 mm plug for that) to the changer jack of the radio. 13pin (you need a 4-ring 3.5 mm plug for that) to the changer jack of the radio.
14M-Bus radios have a DIN-style circular jack with 8 pins (7 in a $\sim$ 270 degree 14M-Bus radios have a DIN-style circular jack with 8 pins (7 in a $\sim$ 270 degree
15circle, one in the center). A standard 5-pin DIN plug is OK for this, since we 15circle, one in the center). A standard 5-pin DIN plug is OK for this, since we
16don't use the other (power) pins. 16do not use the other (power) pins.
17 17
18As OEM, they shuffled the pins around a bit, better check first if it is not 18As OEM, they shuffled the pins around a bit, better check first if it is not
19genuine Alpine. The bus pin is pulled high to 12 volts with a $\sim$ 2kOhm resistor, 19genuine Alpine. The bus pin is pulled high to 12 volts with a $\sim$ 2kOhm resistor,
20pulses driven low. Because it's open collector, this is not harmful to the 20pulses driven low. Because it is open collector, this is not harmful to the
21Archos.\\ 21Archos.\\
22ASCII art of the 4-pin headphone plug: 22ASCII art of the 4-pin headphone plug:
23\begin{verbatim} 23\begin{verbatim}
@@ -28,12 +28,12 @@ ASCII art of the 4-pin headphone plug:
28|_| ground -> Alpine pin 2 + 3 28|_| ground -> Alpine pin 2 + 3
29\end{verbatim} 29\end{verbatim}
30 30
31The remote pin can be programmed bidirectional, that's the reason this works. 31The remote pin can be programmed bidirectional, that is the reason this works.
32Very luckily the M-Bus uses a single wire communication and the two radios I 32Very luckily the M-Bus uses a single wire communication and the two radios I
33tried are happy with the 3.3 Volt level the Arcos can deliver. So the 33tried are happy with the 3.3 Volt level the Arcos can deliver. So the
34connection is a simple cable! For all protocols requiring more lines, an 34connection is a simple cable! For all protocols requiring more lines, an
35external controller would be necessary. 35external controller would be necessary.
36 36
37\note{Archos FMs don't have the remote pin internally connected, but 37\note{Archos FMs do not have the remote pin internally connected, but
38 one unit that was opened was internally prepared for it, a matter of closing a 38 one unit that was opened was internally prepared for it, a matter of closing a
39 bridge.} 39 bridge.}