Embedded c

... PX.Y,TARGET JBC P1.1,TARGET CPL PX.Y CPL P1.2 INC PX INC P1 DEC PX DEC P2 DJNZ PX.Y,TARGET DJNZ P1,TARGET MOV PX.Y ,C MOV P1.2 ,C CLR PX.Y CLR P2.3 SETB PX.Y SETB P2.3 Instructions Reading a latch (Read-Modify-Write) Note: ... R5,A ;clear R5 ADD A,#79H ;A=0+79H=79H ; JNC N_1 ;if CY=0, add next number ; INC R5 ;if CY=1, increment R5 N_1: ADD A,#0F5H ;A=79+F5=6E and CY=1 JNC N_2 ;jump if CY=0...

Ngày tải lên: 04/10/2013, 19:10

... lack the particular character of a physical electrical device. A simulator can be written according to the microprocessor documentation, and therefore will omit any hardware quirks introduced ... platform dependency. Main line C code written for one specific 8-bit microcontroller can therefore be compiled for and run on a different microcontroller with very minor changes to the code. Wi...

Ngày tải lên: 22/12/2013, 02:17

... /* Number of decrement-and-test cycles. */ unsigned long nCycles = nMilliseconds * CYCLES_PER_MS; while (nCycles ); } /* delay() */ The hardware-specific constant CYCLES_PER_MS represents ... Programming Embedded Systems in C and C+ + - 100 - #include "i8018xEB.h" #include "timer.h" #define CYCLES_PER_TICK (25000/4) // Number of clock cycles per tic...

Ngày tải lên: 17/03/2014, 13:20

... Table of Contents Embedded Control Systems in C/ C++?An Introduction for Software Developers Using MATLAB Preface Chapter 1-Control Systems Basics Chapter 2-PID Control Chapter 3-Plant Models Chapter ... Models Chapter 4-Classical Control System Design Chapter 5-Pole Placement Chapter 6-Optimal Control Chapter 7-MIMO Systems Chapter 8-Discrete-Time Systems and Fixed-Point Mathematics Chap...

Ngày tải lên: 19/03/2014, 14:09

... compiler can produce the assembly source code from C source code. The C5 1 compiler compiles the C source code into object code, while the A51 assembler assembles the assembly source code into objective ... and CPU clock frequency for timing tick control, i.e. the number of ticks (clock cycles) per second in measures of MHz. Each instruction takes a few time ticks to complete. MIPS (Mill...

Ngày tải lên: 19/03/2014, 14:10

... namespace scope.  static at file, function, or class scope. Useful when:  Exact or maximum number of objects in system statically determinable. Effective C+ + in an Embedded Environment Scott ... Consultant http://www.aristeia.com/ © 2012 Scott Meyers, all rights reserved. Slide 98 Fully Static Allocation No heap. Objects are either:  On the stack: Local to a function.  Of static stora...

Ngày tải lên: 19/03/2014, 14:13

... interrupt each second (a) Increment clock counter. (b) Request display update. (c) Loop through the preset cycles. If clock is at or past the indexed cycle time, set target temperature to that cycle. 3. ... the architecture should be considered. Using a C compiler for generating device programming reduces the cost of changing controllers when the preferred choice reaches the end of its...

Ngày tải lên: 22/03/2014, 09:20

... the structure containing the routines to access the PCI configuration space. The definition of this structure is from include/linux/pci.h. Because the configuration access is board- speci c, the ... automatic end-of-interrupt mode, then the acknowledgment of the interrupt itself causes the bit to be cleared. A device can be directly connected to the processor in which case it interrupts the proc...

Ngày tải lên: 04/08/2012, 14:23

Ngày tải lên: 04/08/2012, 14:33