get_nets -of [get_cells a_reg] 可见,pins/ports/cells/nets/clocks这些命令及其对应的对象并不是泾渭分明的,他们之间也有密切的关系,下图所示的箭头方向表示已知箭头末端对象可获取箭头指向的对象。 再次举例说明: 已知网线名查找对应时钟名 get_clocks -of [get_nets clk_osc] 已知引脚名查找对应的模块名 ge...
get_ports函数用于在SDC文件中选择设计的输入或输出端口。端口是设计与外部环境的接口,通过端口,设计可以接收外部信号或向外部发送信号。在SDC约束中,使用get_ports可以对设计的输入和输出延迟进行约束,确保设计与外部环境的正确交互。 示例: tcl set_input_delay 3 -clock CLK [get_ports in_port] 这条命令设置...
得到所有方向是input的port get_ports * -f "direction==in" {A B C D CLK} 得到所有方向是output的pin get_pins * -f "direction==out" {U1/Q0 U1/Q1 U2/Z U3/Z REGFILE/Q[0] REGFIEL/Q[1]} 得到所有ref_name是INV的cell get_cells * -f "ref_name==INV" {U2 U3} https://zhuanlan...
Use a USB-C cable to connect the nRF5340 Audio DK to one of your PC's USB ports. This provides power to the board and supports target programming. Connect and test the nRF5340 Audio DK Step 3 of 3 Flip the power switch to "ON". Find it on the top left of the kit. If a popu...
**WARN: (TCLCMD-1052): View option is only supported for modules, library, library cell, library pins,ports, instances, pin, timing arc and net objects. Option Ignored 7.000 6.500 参考答案: 可以用get_db,用它进行筛选很方便 set clock_period [get_db [get_db clocks */vclk1 -index {view...
Note:To improve memory and performance, theget_*commands return a container list of a single type of objects (e.g. cells, nets, pins, or ports). You can add new objects to the list (usinglappendfor instance), but you can only add the same type of object that is currently in the ...
Note:To improve memory and performance, theget_*commands return a container list of a single type of objects (e.g. cells, nets, pins, or ports). You can add new objects to the list (usinglappendfor instance), but you can only add the same type of object that is currently in the ...
dbGet top.terms.pins.allShapes.layer.name 列出设计中的non default rules (NDR) dbGet head.rules.name report_routing_rules (ICC) 列出某条net的route rule dbGet [dbGet -p top.nets.namenetName].rule.name 有的时候我们对某些net设置一个special net rule后,想查看是否设成功了,可以通过这个命令来实现...
GetPinsMap Method GetPinsUsage Method GetPWMChannelsCount Method GetPwmPinForChannel Method GetSerialPins Method GetSerialPortsCount Method GetSpiPins Method GetSpiPortsCount Method GetSupportBaudRates Method GetSupportedInterruptModes Method GetSupportedResistorModes Method IsSupportedBaudRat...
That's what the clocks report is for. Identify what pins/ports the tool thinks are clocks and create clock constraints for them. If it's a clock that you are generating yourself, then you should know what the source should be and include it in the create_generated_clock command. For a...