[openocd-svn] Main OpenOCD repository branch, master, updated. v0.4.0-461-gd1638ab

[Øyvind H. <go...@us...>]

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- Log -----------------------------------------------------------------
commit d1638abd6a67ea028a3896c356af3fe135c719c7
Author: Øyvind Harboe <oyv...@zy...>
Date:   Mon Aug 2 13:21:21 2010 +0200

    lpc1768: even if rclk "works", it isn't necessarily the correct clk
    
    rclk = 4MHz oon lpc1768, the correct JTAG clk is 666MHz(4MHz/6).
    
    Signed-off-by: Øyvind Harboe <oyv...@zy...>

diff --git a/tcl/target/lpc1768.cfg b/tcl/target/lpc1768.cfg
index 88827fa..ff92e4a 100644
--- a/tcl/target/lpc1768.cfg
+++ b/tcl/target/lpc1768.cfg
@@ -50,8 +50,12 @@ flash bank $_FLASHNAME lpc2000 0x0 0x80000 0 0 $_TARGETNAME \
 # JTAG clock should be CCLK/6 (unless using adaptive clocking)
 # CCLK is 4 MHz after reset, and until board-specific code (like
 # a reset-init handler) speeds it up.
-jtag_rclk [ expr 4000 / 6 ]
-$_TARGETNAME configure -event reset-start { jtag_rclk [ expr 4000 / 6]  }
+#
+# Although rclk "appears to work", it turns out that this yields
+# 4MHz whereas the "correct" rate is CCLK/6, which is not what
+# you get with rclk.
+jtag_khz [ expr 4000 / 6 ]
+
 
 
 $_TARGETNAME configure -event reset-init {

-----------------------------------------------------------------------

Summary of changes:
 tcl/target/lpc1768.cfg |    8 ++++++--
 1 files changed, 6 insertions(+), 2 deletions(-)


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