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authorWerner Almesberger <werner@almesberger.net>2016-06-30 23:57:43 -0300
committerWerner Almesberger <werner@almesberger.net>2016-06-30 23:57:43 -0300
commit44fdf204123c85af27b62b58840a99c7992833df (patch)
treec8e45c126380008b89c6588bc166904f9f1c8766 /ir
parentbb329dbd19cbf1e96bba912938e9c62cc6d3d004 (diff)
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ir/ir.tex: remove references to overload protection section; adapt text
Diffstat (limited to 'ir')
-rw-r--r--ir/ir.tex14
1 files changed, 3 insertions, 11 deletions
diff --git a/ir/ir.tex b/ir/ir.tex
index d6a8bc2..5e93a88 100644
--- a/ir/ir.tex
+++ b/ir/ir.tex
@@ -237,11 +237,8 @@ we would consider too short.
%
% Jul 07 23:29:55 <DocScrutinizer05> 300mA pulsed sounds good
-In order to improve its range, the transmitter should be driven with as
-high a current as reasonably possible. In CIR and IrDA mode, this current
-would be well above the permissible continuous forward current. Note
-that incorrect use could cause the IR LED to overheat and the energy of
-a pulse therefore has to be limited. We discuss this in section \ref{overload}.
+% We no longer try to "over-drive" the LED. It would be too much of a hassle,
+% with little benefit.
% - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
@@ -425,12 +422,7 @@ IrDA mode configuration is illustrated in the following drawing:
\label{cfg:iruart}
In IR-UART mode, TX and RX both are active-low. RTS and CTS are not used.
-
-The IR LED driver may be configured
-to operate at a current that does not exceed
-the LED's maximum continuous forward current.
-In any case, power dissipation must be controlled as described in section
-\ref{overload}.
+The routing of the TX and RX signals is the same as in IrDA mode.
% - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -