Interfacing PIC Microcontrollers 4 pot

... to be modified explicitly. Sections 2.3 and 2 .4 in the 16F877 data sheet detail how to handle these problems. Interfacing PIC Microcontrollers 24 14 bit program instructions 13 bit hex address ... two inexpensive external components, operating with the PIC Hardware 17 Else_IPM-BATES_ch001.qxd 6/27/2006 10: 04 PM Page 17 Interfacing PIC Microcontrollers 22 OPTIONAL INSTRUC...

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... 17 Phototransistor, 2 24, 231 PIC 10FXXX MCUs, 267 PIC 12FXXX MCUs, 267 PIC 16F877 block diagram, 10 PIC 16F877 data sheet, 10 PIC 16F877 microcontroller, 3,8 PIC 16FXXX MCUs, 266 PIC 18FXXXX MCUs, 267 PIC output ... converter) 141 , 225 ADC 10-bit conversion, 145 ADC 8-bit conversion, 141 ADC clock, 143 ADC control register, 144 ADC conversion time, 143 ADC input availab...

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... be reversed at the end of the row of LEDs. Interfacing PIC Microcontrollers 34 Else_IPM-BATES_ch001.qxd 6/27/2006 10: 04 PM Page 34 2 PIC Software The PIC microcontroller architecture has been ... until T0IF is set. If the chip is driven from a crystal of 4 MHz, the instruction clock will be 1 MHz, and the timer Interfacing PIC Microcontrollers 28 Bits Pins Alternate func...

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... instructions, including subroutines Interfacing PIC Microcontrollers 64 Figure 3.6 Select source debug window Else_IPM-BATES_ch003.qxd 6/27/2006 12:58 PM Page 64 resistors in series this becomes ... demonstrate the operation of BIN4 program is shown in Figure 3.1, designated as BINX since it can be used for a range of programs. The circuit Interfacing PIC Microcontrollers 56 Els...

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... display) 00 01 02 03 04 05 06 07 08 09 0A 0B 0C 0D 0E 0F 40 41 42 43 44 45 46 47 48 49 4A 4B 4C 4D 4E 4F Table 4. 2 LCD operation Else_IPM-BATES_CH0 04. qxd 6/29/2006 11:07 AM Page 92 Input & Output 95 ; ... versatile. The codes for 0–9, ∗ and # are shown in Table 4. 1. Interfacing PIC Microcontrollers 88 Figure 4. 6 Keypad circuit Else_IPM-BATES_CH0 04. qxd 6/29/2006...

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... bit cleared by the ADC controller, Analogue Interfacing 143 Else_IPM-BATES_ch007.qxd 6/29/2006 11:38 AM Page 143 Interfacing PIC Microcontrollers 144 (a) (b) Register Setting Flags Function ADRESH XXXX ... factor. The LCD is connected to Port D to operate in 4- bit mode and display the voltage, as described in Chapter 4. Interfacing PIC Microcontrollers 142 Figure 7.1 8-b...

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... 6/29/2006 11:38 AM Page 147 Interfacing PIC Microcontrollers 1 54 Figure 7.6 Basic amplifier interface circuits Else_IPM-BATES_ch007.qxd 6/29/2006 11:38 AM Page 1 54 Analogue Interfacing 151 Program ... V are typical supply values, with 15 V supplies giving a higher output voltage swing. Interfacing PIC Microcontrollers 150 ADC10 Load 10-bit, right justified binary (0-1023)...

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... 2:25 PM Page 193 Interfacing PIC Microcontrollers 1 94 MOTORS Test DC motor PWM speed, DC position step servo and stepper motor direction with push button inputs, using P16F877 (4MHz) Main Initialise ... precau- tion for all DC inductive loads (anything with a coil such as a motor or Interfacing PIC Microcontrollers 186 Figure 8 .4 Power outputs interfaces Else_IPM-BATES_ch00...

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... software slave location/register addressing Interfacing PIC Microcontrollers 220 Else_IPM-BATES_ch009.qxd 6/29/2006 11 :40 AM Page 220 Interfacing PIC Microcontrollers 218 ; Initialise TIMER0 for ... for example, the measured variable may be converted Interfacing PIC Microcontrollers 2 24 Else_IPM-BATES_ch010.qxd 7/11/2006 2:55 PM Page 2 24 after the other on the same loca...

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... 1:27 PM Page 262 Interfacing PIC Microcontrollers 260 Memory System Hardware A pair of conventional 62256 32k RAM chips are used to expand the memory to 64k bytes. Port C in the PIC 16F877 is used ... 11 .4 Parallel memory program outline Else_IPM-BATES_CH011.qxd 7/18/2006 1:27 PM Page 263 Interfacing PIC Microcontrollers 256 Program 11.1 Continued ; ; SUBROUTINES ; ; Routi...

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