From: Øyvind Harboe Date: Mon, 2 Aug 2010 09:15:21 +0000 (+0200) Subject: jtag: measure_clk debug proc X-Git-Tag: v0.5.0-rc1~473 X-Git-Url: https://git.sur5r.net/?a=commitdiff_plain;h=ab818f68984aaf56f8b966f4b2e2da4e7f1051c9;p=openocd jtag: measure_clk debug proc It can be useful to get an approximate measurement of rtck frequency for debugging purposes. Signed-off-by: Øyvind Harboe --- diff --git a/src/jtag/startup.tcl b/src/jtag/startup.tcl index 496fdc82..fdd30781 100644 --- a/src/jtag/startup.tcl +++ b/src/jtag/startup.tcl @@ -76,6 +76,15 @@ proc srst_asserted {} { puts "Sensed nSRST asserted." } +# measure actual JTAG clock +proc measure_clk {} { + set start_time [ms]; + runtest 10000000; + echo "Running at more than [expr 10000.0 / ([ms]-$start_time)] kHz"; +} + +add_help_text measure_clk "Runs a test to measure the JTAG clk. Useful with RCLK / RTCK." + # BEGIN MIGRATION AIDS ... these adapter operations originally had # JTAG-specific names despite the fact that the operations were not # specific to JTAG, or otherewise had troublesome/misleading names.