From c9f863f189599b9f1d411512bb453964a387b22e Mon Sep 17 00:00:00 2001 From: Lars-Peter Clausen Date: Thu, 30 Mar 2017 11:13:52 +0200 Subject: [PATCH] m2k: standalone: Set static switching activity for the reset signals The global reset signals are only asserted for a short moment during system startup and deasserted during normal operation, which is the case we care about for power analysis. Giving them a static switching probability indicating that they are always de-asserted will yield better results for power analysis. Signed-off-by: Lars-Peter Clausen --- projects/m2k/standalone/system_constr.xdc | 3 +++ 1 file changed, 3 insertions(+) diff --git a/projects/m2k/standalone/system_constr.xdc b/projects/m2k/standalone/system_constr.xdc index ff760196a..06488bb37 100644 --- a/projects/m2k/standalone/system_constr.xdc +++ b/projects/m2k/standalone/system_constr.xdc @@ -204,3 +204,6 @@ set_property PACKAGE_PIN C2 [get_ports ddr_dqs_p[0]] set_property PACKAGE_PIN B2 [get_ports ddr_dqs_n[0]] set_property PACKAGE_PIN G2 [get_ports ddr_dqs_p[1]] set_property PACKAGE_PIN F2 [get_ports ddr_dqs_n[1]] + +set_switching_activity -static_probability 1 -toggle_rate 0 [get_nets i_system_wrapper/system_i/sys_cpu_resetn] +set_switching_activity -static_probability 0 -toggle_rate 0 [get_nets i_system_wrapper/system_i/logic_analyzer_reset_bus_struct_reset]