www.pudn.com > 05_key_test.rar > vtf_cnkey_test.ucf, change:2016-01-29,size:748b


NET clk LOC = T8 | TNM_NET = sys_clk_pin | IOSTANDARD = "LVCMOS33"; 
TIMESPEC TS_sys_clk_pin = PERIOD sys_clk_pin 50000 kHz; 
 
NET rst_n					LOC = L3 | IOSTANDARD = "LVCMOS33"; 
 
########KEY Pin define##################### 
NET sw1_n 					LOC = C3 | IOSTANDARD = "LVCMOS33"; ## KEY1 
NET sw2_n					LOC = D3 | IOSTANDARD = "LVCMOS33"; ## KEY2 
NET sw3_n					LOC = E4 | IOSTANDARD = "LVCMOS33"; ## KEY3 
NET sw4_n					LOC = E3 | IOSTANDARD = "LVCMOS33"; ## KEY4 
 
########LED Pin define##################### 
NET led_d1					LOC = P4 | IOSTANDARD = "LVCMOS33"; ## LED1 
NET led_d2					LOC = N5 | IOSTANDARD = "LVCMOS33"; ## LED2 
NET led_d3					LOC = P5 | IOSTANDARD = "LVCMOS33"; ## LED3 
NET led_d4					LOC = M6 | IOSTANDARD = "LVCMOS33"; ## LED4