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authorJoel Sherrill <joel.sherrill@OARcorp.com>1998-07-18 15:24:14 +0000
committerJoel Sherrill <joel.sherrill@OARcorp.com>1998-07-18 15:24:14 +0000
commitf7d6e57e09d38525653a2f3b5c1cda6dd4cb59c1 (patch)
treebecff7c0dcb6f21ba40dd98783a971729e53d549 /c/src
parentReworked to removed dependency on DY-4 CSS ROM monitor interface. (diff)
downloadrtems-f7d6e57e09d38525653a2f3b5c1cda6dd4cb59c1.tar.bz2
Added background and setup to add section on RS-422.
Diffstat (limited to 'c/src')
-rw-r--r--c/src/lib/libbsp/powerpc/dmv177/cable.doc32
1 files changed, 21 insertions, 11 deletions
diff --git a/c/src/lib/libbsp/powerpc/dmv177/cable.doc b/c/src/lib/libbsp/powerpc/dmv177/cable.doc
index e32b69e495..21215d3ad5 100644
--- a/c/src/lib/libbsp/powerpc/dmv177/cable.doc
+++ b/c/src/lib/libbsp/powerpc/dmv177/cable.doc
@@ -4,11 +4,28 @@
# $Id$
#
-DY-4 177 Cable configuration to a PC
-====================================
+Background
+==========
-Board's DB-25 PC's DB-9 Color in
- Channel A COM1 Shell
+All serial cables described in this file were built using RJ-45 ribbon
+cables which were plugged into DB-25 or DB-9 adapters wired as described.
+Matching the colors of the wires in the shell is the easiest way to
+make sure the cable is built properly.
+
+References
+==========
+
+ - Linux Serial FAQ
+ - http://ahmed.egypt.com/electronics/serial
+ - DY-4 Documentation
+
+
+
+Front Panel RS-232 Connection to a PC
+=====================================
+
+Board's DB-25 PC's DB-9 Color in
+ Channel A COM1 Shell
============= ============ =========
RX on pin 2 TX on pin 2 Red
TX on pin 3 RX on pin 3 Blue
@@ -17,10 +34,3 @@ DTR on pin 20 DTR on pin 4 Brown
No other signals are used.
-References:
-
- - Linux Serial FAQ
- - http://ahmed.egypt.com/electronics/serial
- - DY-4 Documentation
-
-