关于quartus中引脚配置的tcl

 

电平标准

TTL电平的VIH/VIL一般是2V/0.8V,VOH/VOL一般是 2.4V/0.4V，不论是3.3V还是5V的TTL都一样的；CMOS的VIH/VIL一般是70%VCC/30%VCC，VOH/VOL一般是80% VCC/20%VCC，所以不同的电平不能互推。

 

 

参考：

引脚：https://blog.****.net/lizf477/article/details/49745961

https://www.cnblogs.com/sepeng/p/3965530.html

https://www.cnblogs.com/sepeng/p/3965304.html

https://blog.****.net/sinat_29862967/article/details/83107538

 

电平：https://www.cnblogs.com/pengwangguoyh/p/4563991.html

 

PS：tcl部分附录

 

set_location_assignment PIN_H19 -to e_rxd[7]

set_location_assignment PIN_F14 -to e_rxd[6]

set_location_assignment PIN_F15 -to e_rxd[5]

set_location_assignment PIN_F17 -to e_rxd[4]

set_location_assignment PIN_D21 -to e_rxd[3]

set_location_assignment PIN_D19 -to e_rxd[2]

set_location_assignment PIN_D18 -to e_rxd[1]

set_location_assignment PIN_B21 -to e_rxd[0]

set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to e_rxd[7]

set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to e_rxd[6]

set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to e_rxd[5]

set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to e_rxd[4]

set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to e_rxd[3]

set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to e_rxd[2]

set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to e_rxd[1]

set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to e_rxd[0]

 

set_location_assignment PIN_AB11 -to clk_in

set_instance_assignment -name IO_STANDARD "3.3-V LVTTL" -to clk_in