IEEE 802.15.4：低功耗无线通信协议详解与ZigBee对比

IEEE802.15.4

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LIBRARY IEEE; USE IEEE.STD_LOGIC_1164.ALL; USE IEEE.STD_LOGIC_UNSIGNED.ALL; ENTITY con_out IS PORT ( OE: IN STD_LOGIC; A: IN STD_LOGIC_VECTOR(7 DOWNTO 0); Y: OUT STD_LOGIC_VECTOR(7 DOWNTO 0)); END ENTITY con_out; ARCHITECTURE behav OF con_out IS BEGIN PROCESS ( OE,A ) BEGIN IF OE='0' THEN Y<=A; ELSE Y<="ZZZZZZZZ"; END IF; END PROCESS; END ARCHITECTURE behav;

这段代码定义了一个名为 `con_out` 的...在这个实体中使用了两个 IEEE 标准的库，`IEEE.STD_LOGIC_1164.ALL` 和 `IEEE.STD_LOGIC_UNSIGNED.ALL`。这些库中包含了许多常用的数据类型和操作符，可以方便地进行逻辑设计。

解释代码：LIBRARY IEEE; USE IEEE.STD_LOGIC_1164.ALL; USE IEEE.STD_LOGIC_UNSIGNED.ALL; ENTITY lockcontrol IS PORT( FEEDBACK,RESET:IN STD_LOGIC; Y:OUT STD_LOGIC); END lockcontrol; ARCHITECTURE bhv OF lockcontrol IS BEGIN PROCESS(FEEDBACK,RESET) BEGIN Y <= '1'; IF FEEDBACK = '0' THEN Y <= '0'; END IF; IF RESET = '1' THEN Y <= '1'; END IF; END PROCESS; END bhv;

这是一个简单的锁控制电路的VHDL代码，它的功能是控制一个输出信号Y来...该代码中使用了VHDL标准库中的两个包：IEEE.STD_LOGIC_1164.ALL和IEEE.STD_LOGIC_UNSIGNED.ALL，这两个包分别定义了标准逻辑类型和无符号类型。

Type error resolving infix expression "mod" as type ieee.std_logic_1164.STD_LOGIC_VECTOR.

library ieee; use ieee.numeric_std.all; ... signal a, b : unsigned(7 downto 0); -- 8-bit unsigned signals signal result : unsigned(7 downto 0); ... result ; -- Calculate remainder using mod ...

LIBRARY IEEE; USE IEEE.STD_LOGIC_1164.ALL; use ieee.std_logic_arith.all; USE IEEE.STD_LOGIC_UNSIGNED.ALL; ENTITY YMQ IS PORT(AIN4 : IN STD_LOGIC_VECTOR(3 DOWNTO 0); DOUT7 :OUT STD_LOGIC_VECTOR(6 DOWNTO 0)); END YMQ; ARCHITECTURE ART OF YMQ IS BEGIN PROCESS(AIN4) BEGIN CASE AIN4 IS WHEN "0000"=>DOUT7<="1111110"; WHEN "0001"=>DOUT7<="0110000"; WHEN "0010"=>D0UT7<="1101101"; WHEN "0011"=>DOUT7<="1111001"; WHEN "0100"=>D0UT7<="0110011"; WHEN "0101"=>DOUT7<="1011011"; WHEN "0110"=>DOUT7<="1011111"; WHEN "0111"=>D0UT7<="1110000"; WHEN "1000"=>DOUT7<="1111111"; WHEN "1001"=>DOUT7<="1111011"; WHEN OTHERS=>DOUT7<="0000000"; END CASE; END PROCESS; END ART;

LIBRARY IEEE; USE IEEE.STD_LOGIC_1164.ALL; USE IEEE.STD_LOGIC_ARITH.ALL; USE IEEE.STD_LOGIC_UNSIGNED.ALL; ENTITY YMQ IS PORT(AIN4 : IN STD_LOGIC_VECTOR(3 DOWNTO 0); DOUT7 : OUT STD_LOGIC_VECTOR(6 ...

用中文给以下vhdl代码添加注释：library ieee; use ieee.std_logic_1164.all; use ieee.std_logic_unsigned.all; use ieee.std_logic_arith.all; entity adder_4bit is port ( ain1,bin1,cin1,ain2,bin2,ain3,bin3,ain4,bin4:in std_logic; so1,so2,so3,so4,co5:out std_logic ); end adder_4bit; architecture hav of adder_4bit is component adder_1bit port (bin: IN STD_LOGIC; cin: IN STD_LOGIC; ain: IN STD_LOGIC; so :OUT STD_LOGIC; co :OUT STD_LOGIC); end component; signal cin2,cin3,cin4,cin5:std_logic; begin u1:adder_1bit port map(ain=>ain1,bin=>bin1,cin=>cin1,co=>cin2,so=>so1); u2:adder_1bit port map(ain=>ain2,bin=>bin2,cin=>cin2,co=>cin3,so=>so2); u3:adder_1bit port map(ain=>ain3,bin=>bin3,cin=>cin3,co=>cin4,so=>so3); u4:adder_1bit port map(ain=>ain4,bin=>bin4,cin=>cin4,co=>cin5,so=>so4); end architecture;

-- 这是一个 4 位加法器的 VHDL 代码 -- 首先引入了 IEEE 标准库 library ieee; use ieee.std_logic_1164.all; use ieee.std_logic_unsigned.all; use ieee.std_logic_arith.all; -- 定义了一个实体，包含了输入和...

LIBRARY IEEE; USE IEEE.STD_LOGIC_1164.ALL; USE IEEE.STD_LOGIC_UNSIGNED.ALL; USE IEEE.STD_LOGIC_ARITH.ALL; ENTITY tong IS PORT( Vin : IN STD_LOGIC_VECTOR(7 DOWNTO 0); shift : IN STD_LOGIC_VECTOR(2 downto 0); Vo : OUT STD_LOGIC_VECTOR(7 DOWNTO 0) ); END tong; ARCHITECTURE behavior OF tong IS BEGIN process(shift,Vin) VARIABLE temp1:STD_LOGIC_VECTOR(7 DOWNTO 0); VARIABLE temp2:STD_LOGIC_VECTOR(7 DOWNTO 0); begin IF(shift(0)='0') THEN temp1 := Vin; ELSE temp1(0):='0'; for i IN 1 to Vin'HIGH LOOP temp1(i):=Vin(i-1); END LOOP; END IF; IF(shift(1)='0')THEN temp2:=temp1; ELSE for i IN 1 to 2 LOOP temp2(i):='0'; END loop; Vo<=temp2; end if; IF(shift(2)='0')THEN Vo<=temp1 xor temp2; ELSE for i IN 1 to 2 LOOP temp2(i):='0'; END loop; Vo<=temp2; end if; end process; END behavior;请帮我续写一个桶式移位寄存器

LIBRARY IEEE; USE IEEE.STD_LOGIC_1164.ALL; USE IEEE.STD_LOGIC_UNSIGNED.ALL; USE IEEE.STD_LOGIC_ARITH.ALL; ENTITY tong IS PORT( Vin : IN STD_LOGIC_VECTOR(7 DOWNTO 0); shift : IN STD_LOGIC_...

请补充完成具有下面功能的计数器的程序设计。说明：设电路的控制端均为高电平有效，时钟端CLK,电路的预置数据输入端为4位D，计数输出端也为4位Q，带同步始能EN、异步复位CLR和预置控制LD的六进制减法计数器。 LIBRARY IEEE; USE IEEE.STD_LOGIC_1164.ALL; USE IEEE.STD_LOGIC_ARITH.ALL; USE IEEE.STD_LOGIC_UNSIGNED.ALL; ENTITY CNT6 IS PORT(EN,CLR,LD,CLK:IN STD_LOGIC; D: IN STD_LOGIC_VECTOR(3 DOWNTO 0); Q:OUT STD_LOGIC_VECTOR(3 DOWNTO 0)); END CNT6; ARCHITECTURE BEHA OF CNT6 IS SIGNAL QTEMP:STD_LOGIC_VECTOR(3 DOWNTO 0); BEGIN PROCESS(CLK,CLR,LD) BEGIN IF CLR='1' THEN QTEMP<="0000"; --CLR=1清零 ELSIF (CLK'EVENT AND CLK='1') THEN --判断是否上升沿 IF LD='1' THEN QTEMP<= 1 ; --判断是否置位 ELSIF EN='1' THEN --判断是否允许计数 IF QTEMP="0000" THEN QTEMP<= 2 ; --等于0，计数值置5 ELSE QTEMP<= 3 ; --否则，计数值减1 END IF; END IF; END IF; Q<=QTEMP; END PROCESS; END BEHA;

该计数器的原理如下： - 当CLR为高电平时，计数器清零，QTEMP被赋值为"0000"。 - 在时钟的上升沿边缘，判断LD是否为高电平，如果是，则将D的值赋值给QTEMP；如果不是，则继续判断EN是否为高电平。 - 如果EN为高电平...

补全以下代码 LIBRARY IEEE; USE IEEE.STD_LOGIC_1164.ALL; USE IEEE.STD_LOGIC_UNSIGNED.ALL; ENTITY con_cnt IS PORT ( CLK : IN STD_LOGIC; AIN,BIN,CIN,DIN : IN STD_LOGIC; Q: OUT STD_LOGIC_VECTOR (7 DOWNTO 0)); END ENTITY con_cnt; ARCHITECTURE behav OF con_cnt IS COMPONENT con_en PORT ( --补充 ); END COMPONENT ; COMPONENT con_out PORT ( --补充 ); END COMPONENT ; SIGNAL EN : STD_LOGIC; SIGNAL R: STD_LOGIC_VECTOR(7 DOWNTO 0); BEGIN u1 : con_en PORT MAP ( ); --例化 u2 : con_out PORT MAP ( ); --例化 PROCESS ( CLK,EN ) BEGIN --补充计数器程序 END PROCESS; END ARCHITECTURE behav;

LIBRARY IEEE; USE IEEE.STD_LOGIC_1164.ALL; USE IEEE.STD_LOGIC_UNSIGNED.ALL; ENTITY con_cnt IS PORT ( CLK : IN STD_LOGIC; AIN, BIN, CIN, DIN : IN STD_LOGIC; Q: OUT STD_LOGIC_VECTOR (7 DOWNTO 0) )...

LIBRARY IEEE; USE IEEE.STD_LOGIC_1164.ALL; USE IEEE.STD_LOGIC_UNSIGNED.ALL; ENTITY counter1 IS PORT(clr,en,clk: IN STD_LOGIC; Q : OUT STD_LOGIC_VECTOR(4 DOWNTO 0)); END counter1; ARCHITECTURE count OF counter1 IS SIGNAL count: STD_LOGIC_VECTOR(3 DOWNTO 0); BEGIN PROCESS(clk,clr) BEGIN IF(clr='1') THEN count<=(others=>'0'); ELSIF(rising_edge(clk)) THEN IF(en='1') THEN IF(count="1011") THEN count="0000"; ELSE count=count+'1'; END IF; END IF; END PROCESS; Q<=count; END counter1;找出里面的错误并更改

LIBRARY IEEE; USE IEEE.STD_LOGIC_1164.ALL; USE IEEE.STD_LOGIC_UNSIGNED.ALL; ENTITY counter1 IS PORT( clr, en, clk: IN STD_LOGIC; Q: OUT STD_LOGIC_VECTOR(4 DOWNTO 0) ); END counter1; ARCHITECTURE...

library IEEE; use IEEE.STD_LOGIC_1164.ALL; use IEEE.STD_LOGIC_ARITH.ALL; use IEEE.STD_LOGIC_UNSIGNED.ALL entity display is port( clock: in std_logic; reset: in std_logic; input: in std_logic_vector(3 downto 0); output: out std_logic_vector(7 downto 0) ); end display;检验这个代码的正确性

- input: 输入数据信号，类型为长度为 4 的 std_logic_vector 向量 - output: 输出数据信号，类型为长度为 8 的 std_logic_vector 向量如果你有实现该实体的 Verilog HDL 代码，并且该代码实现了正确的功能，那么...

bin_num <= std_logic_vector(to_unsigned(to_integer(numeric_std.unsigned(hex_num)), 16));为何以上代码出现如下错误Error (10482): VHDL error at num_display.vhd(42): object "numeric_std" is used but not declared

bin_num : out std_logic_vector(15 downto 0)); end entity; architecture Behavioral of num_display is begin bin_num <= std_logic_vector(to_unsigned(to_integer(unsigned(hex_num)), 16)); end ...

library ieee; use ieee.std_logic_1164.all; use ieee.std_logic_unsigned.all; entity pipo is port ( dcc1: in std_logic_vector(4 downto 1); clk : in std_logic; data_out:out std_logic_vector(3 downto 0)); end pipo; architecture pipo of pipo1 is signal dc0,dc1,dc2,dc3:std_logic_vector(3 downto 0); begin process(clk,clr) begin if(clr='0') then dc0<="0000"; dc1<="0000"; dc2<="0000"; dc3<="0000"; data_out<="0000"; elsif(clk'event and clk='1') then dc0<=dcc1; dc1<=dc0; dc2<=dc1; dc3<=dc2; end process ; end pipo；指出并改正错误

dcc1 : in std_logic_vector(4 downto 1); clk : in std_logic; clr : in std_logic; data_out : out std_logic_vector(3 downto 0) ); end pipo1; architecture pipo of pipo1 is signal dc0, dc1, dc2, dc3...

library ieee;use ieee.std_logic_1164.all;use ieee.std_logic_unsigned.all;entity gaicuo isport ( clk,data,reset:in std_logic;dout:out std_logic);end gaicuo;architecture a of chk1 issignal temp:std_logic_vector(6 downto 1);signal tmp1:std_logic;begindout<=tmp1;process(clk,reset)beginif reset='0' thentemp<=(others=>'0'); tmp1<='0';elseif rising_edge(clk) thentemp(0)<=data;for i in 1 to 6 looptemp(i)<=temp(i-1);end loop;end if;end if;tmp1<= (not temp(0)) and temp(1) and (not temp(2))and (not temp(3))and temp(4) and temp(5) and temp(6);end process;end a;

1. 第 2 行的 `use ieee.std_logic_unsigned.all;` 应该改为 `use ieee.numeric_std.all;`，因为 `std_logic_unsigned` 已经被弃用了。 2. 第 5 行的 `architecture a of chk1 is` 应该改为 `architecture a of ...

简述IEEE 802.11、IEEE 802.15.1、IEEE 802.15.4和RFID这四类典型的短距离无线射频通信标准

IEEE 802.15.4是一种用于低速、低功耗无线传感器网络（WSN）的标准。它支持小型设备之间的短距离通信和低功耗操作，被广泛用于物联网和工业自动化等领域。 RFID是一种用于识别和跟踪物品的技术，它使用无线射频信号...

LIBRAY IEEE; USE IEEE,STD_LOGIC_1114.ALL; USE IEEE,STD_LOGIC_UNSIGNED.ALL; ENTITY LX IS; PORT( CLK: IN STD_LOGIC; J,K: IN STD_LOGIC; Q,QN: BUFFER STD_LOGIC); END IX; ARCHITECTURE ONE OF LX IS; SIGNAL JK:STD_LOGIC_VECTOR(2 DOWNTO 0); BEGIN JK<=J&&K; PROCESS(CLK,J,K); BEGIN IF CLK,EVENT AND CLK='0'THEN CASE JK IS WHEN “00”=> Q <=Q; QN <= QN; WHEN “01”=> Q <='0';QN<='1'; WHEN “10”=> Q <='1'pQN<='0'; WHEN “11”=> Q <=NOT Q; QN<= NOT QN; END CASE; END PROCESS END ONE;//错误修正

4. ARCHITECTURE 声明中的名称应该是 ONE，而不是 ONE OF。 5. 在 CASE 语句中，字符“p”应该改为“;”，以分隔两条赋值语句。 6. ARCHITECTURE 声明末尾应该有一个分号。下面是修改后的代码： ``` LIBRARY IEEE...

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IEEE 802.15.4：低功耗无线通信协议详解与ZigBee对比

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jesd220e-ufs3.1_2020.jan.pdf下载

ieee 802.15.4协议完整版英文

Type error resolving infix expression "mod" as type ieee.std_logic_1164.STD_LOGIC_VECTOR.

library IEEE; use IEEE.STD_LOGIC_1164.ALL; use IEEE.STD_LOGIC_ARITH.ALL; use IEEE.STD_LOGIC_UNSIGNED.ALL entity display is port( clock: in std_logic; reset: in std_logic; input: in std_logic_vector(3 downto 0); output: out std_logic_vector(7 downto 0) ); end display;检验这个代码的正确性

bin_num <= std_logic_vector(to_unsigned(to_integer(numeric_std.unsigned(hex_num)), 16));为何以上代码出现如下错误Error (10482): VHDL error at num_display.vhd(42): object "numeric_std" is used but not declared

简述IEEE 802.11、IEEE 802.15.1、IEEE 802.15.4和RFID这四类典型的短距离无线射频通信标准

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