Introduction to Microcontrollers Lab Manual - Microchip

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LABS NOTES: DS51963A-page 12 2011 Microchip Technology Inc.
1.1 OBJECTIVE 1.2 PRE-LAB Lab 1. Timers The lab covers the following concepts: • PIC24F hardware timer modules • Assembly language CALL and RCALL instructions • Using MPLAB IDE to measure code execution time 1.2.1 Reference Material • PIC24FJ256GB110 Family Data Sheet (DS39897) • 16-Bit MCU and DSC Programmer’s Reference Manual (DS70157) • MPLAB IDE User’s Guide (DS51519) • PIC24F Reference Manual – Section 14. Timers (DS39704) 1.2.2 Timers LABS The PIC24FJ256GB110 device offers five (5) 16-bit timers/counters designated as Timer1, Timer2, … With certain exceptions, all of the 16-bit timers have the same functional circuitry. The 16-bit timers are classified into three types to account for their functional differences: • Timer1 is a Type A timer • Timer2 and Timer4 are Type B timers • Timer3 and Timer5 are Type C timers Type B and Type C timers can be combined to form a 32-bit timer. Each timer module consists of the following readable/writable registers: • TMRx: 16-bit Timer Count register • PRx: 16-bit Timer Period register associated with the timer • TxCON: 16-bit Timer Control register associated with the timer Timers can be run from either an external clock connected to the TxCK pin, or the internal clock (Fosc/2). This lab will use the internal clock as the MX PIC24F EDU Module does not connect an external clock to the TxCLK pins. 1.2.3 Subroutine CALL A subroutine CALL in assembly is a powerful tool for reusing code and keeping your code clean and legible. Low-level functions can be abstracted into higher level functions by the use of subroutine. This is similar to the use of a function in the 'C' language. In fact, 'C' functions make use of the RCALL assembly instruction. A CALL is similar to a GOTO or BRA instruction except that it stores the address of the next instruction and allows you to return to it with the RETURN instruction. 2011 Microchip Technology Inc. DS51963A-page 13
Page 1 and 2: Introduction to Microcontrollers La
Page 3 and 4: INTRODUCTION TO MICROCONTROLLERS LA
Page 5 and 6: INTRODUCTION INTRODUCTION TO MICROC
Page 7 and 8: 0.1 OBJECTIVE 0.2 PRE-LAB Lab 0. In
Page 9 and 10: 0.3 THE LAB 0.2.5 I/O Ports The abi
Page 11: 0.3.5 Programming the Device In ord
Page 15 and 16: Setup the Simulator processor frequ
Page 17 and 18: FIGURE 1-3: LAB 1 BASIC PROGRAM FLO
Page 19 and 20: 2.1 INTERRUPTS 2.2 PRE-LAB 2.1.1 Ob
Page 21 and 22: FIGURE 2-2: LAB 2 PRIMARY AND ALTER
Page 23 and 24: 2.2.3 IDE Concepts Watch Window It
Page 25 and 26: 3.1 OBJECTIVE 3.2 PRE-LAB Lab 3. UA
Page 27 and 28: 3.2.4 I/O Ports with Peripheral Pin
Page 29 and 30: For example: Mapping Action Map “
Page 31 and 32: 3.3 THE LAB 3.3.1 Objective Program
Page 33 and 34: 4.1 OBJECTIVE 4.2 PRE-LAB Lab 4. Wa
Page 35 and 36: 4.3 THE LAB 4.2.4 Configuration Bit
Page 37 and 38: 5.1 OBJECTIVE 5.2 PRE-LAB Lab 5. Co
Page 39 and 40: FIGURE 5-4: LAB 5 COMPARATOR VOLTAG
Page 41 and 42: FIGURE 5-5: LAB 5 BASIC PROGRAM FLO
Page 43 and 44: 6.1 OBJECTIVE 6.2 PRE-LAB Lab 6. An
Page 45 and 46: To configure the A/D module, the fo
Page 47 and 48: 6.3 THE LAB The first code transiti
Page 49 and 50: FIGURE 6-5: LAB 6 PROGRAM FLOW The
Page 51 and 52: 7.1 OBJECTIVE 7.2 PRE-LAB Lab 7. Pu
Page 53 and 54: FIGURE 7-3: OUTPUT COMPARE BLOCK DI
Page 55 and 56: LEDs are on the following ports: LE
Page 57 and 58: 8.1 OBJECTIVE 8.2 PRE-LAB Lab 8. Ex
Page 59 and 60: 8.2.7 Serial Peripheral Interface (
Page 61 and 62: 8.3 THE LAB 8.3.1 Objective Write a
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9.1 OBJECTIVE 9.2 PRE-LAB Lab 9. Po
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FIGURE 9-1: PIC24FJ256GB110 FAMILY
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9.3 THE LAB 9.2.7 Microchip XLP Tec
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10.1 OBJECTIVE 10.2 THE LAB Lab 10.
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INTRODUCTION TO MICROCONTROLLERS LA
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A.3 STEP THREE: CREATE NEW PROJECT
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Introduction to Microcontrollers Lab Manual - Microchip

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