Port ( A1 : in STD_LOGIC - XOR gate input 1Īrchitecture Behavioral of xor_xnor_top is This listing shows an XOR and XNOR gate in VHDL. The VHDL xnor keyword is used to create an XNOR gate: XNOR Gate with Truth Table and VHDL XOR and XNOR VHDL Project The VHDL xor keyword is used to create an XOR gate: XOR Gate with Truth Table and VHDL XNOR Gate This video shows the NAND gate and then the NOR gate implemented on the home made CPLD board.īooks that may interest you: Exclusive-OR and Exclusive-NOR Logic Gates in VHDL XOR Gate The JED file is for configuring the home made CPLD board. compensation for inverting inputs and outputsĭownload nand_nor.zip (5.9kB) which contains the VHD, UCF and JED files for the NAND and NOR gates. The need for compensation is explained in tutorial 2 AND Gates, OR Gates and Signals in VHDL. The code listing below shows the same code as above, but with compensation for the inverting inputs on the home made Xilinx CPLD board. Port ( A1 : in STD_LOGIC - NAND gate input 1Īrchitecture Behavioral of nand_nor_top is Two separate gates are created that each have two inputs. This code listing shows the NAND and NOR gates implemented in the same VHDL code. The VHDL nor keyword is used to create a NOR gate: NOR Gate with Truth Table and VHDL NAND and NOR VHDL Project The VHDL nand keyword is used to create a NAND gate: NAND Gate with Truth Table and VHDL NOR Gate NAND and NOR Logic Gates in VHDL NAND Gate
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