VHDL Programming by Example phần 10 potx

... work with VHDL8 7 bus_value := “ 0101 0101 0101 0101 ”; or bus_value := O”052525”; or bus_value := X”5555”; In VHDL9 3 this concept is extended to types std_logic_vector. DELAY_LENGTH Subtype In VHDL8 7 ... 137 Subprogram overloading, 206– 210 Subprogram parameter overloading, 208– 210 Subprograms, 110 135 functions, 110 132 (see also Functions) procedures, 133–135 Subtypes, 105 107 &a...

Ngày tải lên: 14/08/2014, 00:21

... following example, different types of function calls are shown, and the results obtained with each call: USE WORK.p_shift.ALL; ENTITY shift _example IS END shift _example; ARCHITECTURE test OF shift _example ... output generated: 10 20 50 16#A <— hex input 1_2_3 <— underscores ignored 87 52 <— second argument ignored The output from the input file would look like this: 100...

Ngày tải lên: 14/08/2014, 00:21

... mode using the Editor Options. Microsoft SQL Server 2000 Programming by Example 650 In the next window, the network libraries used by this instance of SQL Server are configured. The only ... device that will be connecting to SQL Server. Figure A .10. Configuring the server network libraries. Microsoft SQL Server 2000 Programming by Example 670 USE Northwind GO...

Ngày tải lên: 08/08/2014, 22:20

... something to consider when making a choice between UDP and TCP, for example. Linux Socket Programming by Example - Warren W. Gay 152 10. The system(3) call invokes the netstat(1) command to prove ... in which efficiency is highly desirable. For example, the Network Time Protocol (NTP) uses Linux Socket Programming by Example - Warren W. Gay 107 1. Create your socket usin...

Ngày tải lên: 12/08/2014, 21:20

... FLG_UNKNOWN 1 100 : /* Data format error */ 101 : #define FLG_ERROR 2 102 : 103 : /* 104 : * External Function References: 105 : */ 106 : extern int load( 107 : TickReq *tick,int *pntick,int nmax); 108 : extern ... write(s,buf,strlen(buf)); 103 : shutdown(s,1); 104 : 105 : /* 106 : * Read response with a timeout: 107 : */ 108 : do { 109 : z = read(s,buf,sizeof buf); 110: } wh...

Ngày tải lên: 12/08/2014, 21:20

... 10 ns WHEN 0, line 4 Q <= I1 AFTER 10 ns WHEN 1, line 5 Q <= I2 AFTER 10 ns WHEN 2, line 6 Q <= I3 AFTER 10 ns WHEN 3, line 7 Q <= I4 AFTER 10 ns WHEN 4, line 8 Q <= I5 AFTER 10 ... in VHDL is the physical type TIME. This type is shown here: TYPE TIME IS RANGE <implementation defined> UNITS fs; femtosecond ps = 100 0 fs; picosecond ns = 100 0 ps; nanosecon...

Ngày tải lên: 14/08/2014, 00:21

... RANGE 0 TO 100 0000 UNITS uv; micro volts mv = 100 0 uv; milli volts v = 100 0 mv; volts END UNITS; TYPE resistance IS RANGE 0 TO 100 000000 UNITS ohm; ohms Kohm = 100 0 ohm; kilo ohms Mohm = 100 0 Kohm; ... Following is an example of conversion from a physical type to an integer type: PACKAGE ohms_law IS TYPE current IS RANGE 0 TO 100 0000 UNITS ua; micro amps ma = 100 0 ua; milli...

Ngày tải lên: 14/08/2014, 00:21

... description as shown in Figure 10- 10. By counting the flip-flops (FDSR1) on the page, it can be seen that this is indeed a 4-bit shifter. State Machine Example The next example is a simple state machine ... synthesize a VHDL description, the designer reads the verified VHDL description into the VHDL synthesis tool in the same way that the designer read the design into the VHDL...

Ngày tải lên: 14/08/2014, 00:21