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authoroharboe <oharboe@b42882b7-edfa-0310-969c-e2dbd0fdcd60>2008-05-19 08:03:17 +0000
committeroharboe <oharboe@b42882b7-edfa-0310-969c-e2dbd0fdcd60>2008-05-19 08:03:17 +0000
commite2ebed86bf2aff904d9b89765771e03bd8e74433 (patch)
tree9655e9a52753aa0cbed012a4da4add83ed2abd97 /src/target
parentd487a11b929de7d2637812ab03f6fa0eceb2d5f8 (diff)
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updated guidelines.
git-svn-id: svn://svn.berlios.de/openocd/trunk@662 b42882b7-edfa-0310-969c-e2dbd0fdcd60
Diffstat (limited to 'src/target')
-rw-r--r--src/target/target/readme.txt14
1 files changed, 14 insertions, 0 deletions
diff --git a/src/target/target/readme.txt b/src/target/target/readme.txt
index a0fd5031..f38fb376 100644
--- a/src/target/target/readme.txt
+++ b/src/target/target/readme.txt
@@ -22,3 +22,17 @@ assumed that all write-protect mechanisms should be disabled.
flash write_image [file] <parameters>
verify_image [file] <parameters>
+
+4. jtag_khz sets the maximum speed (or alternatively RCLK). If invoked
+multiple times only the last setting is used.
+
+interface/xxx.cfg files are always executed *before* target/xxx.cfg
+files, so any jtag_khz in interface/xxx.cfg will be overridden by
+target/xxx.cfg. jtag_khz in interface/xxx.cfg would then, effectively,
+set the default JTAG speed.
+
+Note that a target/xxx.cfg file can invoke another target/yyy.cfg file,
+so one can create target subtype configurations where e.g. only
+amount of DRAM, oscilator speeds differ and having a single
+config file for the default/common settings.
+