EE 308 Lecture Outline

EE 308

Lecture Outline for Spring 2009

Wednesday 1/21
- Introduction to Microprocessors and Microcontrollers.
- Huang, Sections 1.2, 1.3
- Notes
  - Course Overview
  - Cruise Control Block Diagrams and Flowchart
  - Block Diagrams of Simple Microprocessor and Microcontroller
  - Harvard architecture and Princeton (Von Neuman) architecure microprocessor block diagrams
  - Memory map for a Princeton architecture microprocessor
Friday 1/23
- Introduction to the 9S12 Microcontroller
- Huang, Sections 1.4, 1.5
- S12CPUV2 Reference Manual, Sections 2.1 - 2.5.
- Notes
  - 68HC12 Address Space
  - 68HC12 ALU
  - 68HC12 Programming Model
  - Some 9S12 Instructions Needed for Lab 1
  - A Simple Assembly Language Program
  - Assembling an Assembly Language Program
Monday 1/26
- Simple assembly language programming
- Huang, Section 2.2
- HC12 Addressing Modes
- Huang, Sections 1.6 and 1.7
- S12CPUV2 Reference Manual, Section 3.
- Notes
  - A Simple Assembly Language Program
  - Assembling an Assembly Language Program
  - Simple 9S12 programs
  - Hex code generated from a simple 9S12 program
  - Things you need to know for 9S12 assembly language programming
  - HC12 Addressing Modes
  - Inherent, Extended, Direct, Immediate, Indexed, and Relative Modes
  - Summary of 9S12 Addressing Modes
Wednesday 1/28
- More on 9S12 Addressing Modes
- Huang, Sections 1.6 and 1.7
- S12CPUV2 Reference Manual, Section 3.
- Instruction coding and execution
- Notes
  - Inherent, Extended, Direct, Immediate, Indexed, and Relative Modes
  - Summary of 9S12 Addressing Modes
  - Using X and Y registers as pointers
  - How to tell which branch instruction to use
  - How to hand assemble a program
  - Number of cycles and time taken to execute an 9S12 program
Friday 1/30
- AS12 Assembler Directives
- A Summary of 9S12 Instructions
- Disassembly of 9S12 op codes
- Huang Section 1.8, Chapter 2
- S12CPUV2 Reference Manual, Section 5.
- Notes
  - Number of cycles and time taken to execute an 9S12 program
  - A label is a name assigned the address of the location counter where ithe label is defined
  - Use of {\tt as12} assembler directives
  - A summary of 9S12 instruction
  - How to disassemble an MC9S12 instruction sequence
Monday 2/2
- Disassembly of 9S12 op codes
- Decimal, Hexadecimal and Binary Numbers
- S12CPUV2 Reference Manual, Section 5.
- Notes
  - How to disassemble an MC9S12 instruction sequence
  - Binary numbers are a code, and represent what the programmer intends for the code
  - Convert binary and hex numbers to unsigned decimal
  - Convert unsigned decimal to hex
  - Signed number representation - 2's Complement form
  - Using the 1's complement table to find 2's complements of hex numbers
  - Overflow and Carry
  - Addition and subtraction of binary and hexadecimal numbers
  - The Condition Code Register (CCR): N, Z, V and C bits
Wednesday 2/4
- Writing an assembly language program
- Huang Sections 2.4, 2.5, 2.6
- Notes
  - Disassembly of 9S12 op codes
  - Use flow charts to lay out structure of program
  - Use common flow structures
    - if-then
    - if-then-else
    - do-while
    - while
  - Do not use spaghetti code
  - Plan structure of data in memory
  - Plan overall structure of program
  - Work down to more detailed program structure
  - Implement structure with instructions
  - Optimize program to make use of instruction efficiencies
  - Do not sacrifice clarity for efficiency
Friday 2/6
- More on programming in assembly language
- Introduction to Ports on the HC12
- Huang Sections 7.1 through 7.5
- Notes
  - Input and Output Ports
    - Simplified Input Port
    - Simplified Output Port
    - Simplified Input/Output Port
    - PORTA, PORTB, DDRA, DDRB
    - A simple program to use PORTA and PORTB
  - Good programming style
  - Tips for writing programs
  - A program to average the numbers in a memory array
  - Flow charts
  - Assembly language program
  - Assembly listing file
Monday 2/9
- Using the stack and the stack pointer
- Huang Section 4.3
- Notes
  - The Stack and the Stack Pointer
  - The stack is an area of memory used for temporary storage
  - The stack pointer points to the last byte pushed onto the stack
  - Some instructions which use the stack, and how data is pushed onto and pulled off of the stack.
  - Subroutines and the Stack
  - An example of a simple subroutine
  - Using a subroutine with PORTA to make a binary counter on LEDs
Wednesday 2/11
- An Example of Using the Stack
- Notes
  - An example of using the stack
  - Including hcs12.inc in assembly language programs
  - Using a mask in assembly language programs
  - Using a subroutine with PORTA to make a binary counter on LEDs
Friday 2/13
- Introduction to Programming the 9S12 in C
- Huang Sectons 5.2 and 5.3
- Notes
  - Comparison of C and Assembly programs for the HC12
  - How to compile a C program using the GNU-C compiler
  - Using pointers to access the contents of specific addresses in C
  - Using the iodp256.h header file
Monday 2/16
- More on Programming the 9S12 in C
- Huang Sectons 5.2 through 5.4
- Introduction to the 9S12 Hardware Subsystems
- Huang Sections 8.2-8.6
- ECT_16B8C Block User Guide
- A summary of 9S12 hardware subsystems
- Introduction to the 9S12 Timer subsystem
- Notes
  - Some C basics
  - Setting and clearing bits in Assembly and C
  - Some simple programs in C
  - Function to delay for a given number of milliseconds
  - Program to increment the LEDs connected to PORTA
  - Program to display a particular pattern on PORTA
  - The 9S12 has a 16-bit free-running counter to determine the time and event happens, and to make an event happen at a particular time
  - The counter is normally clocked with an 8 MHz clock
  - The Timer Overflow (TOF) bit - when the timer rolls over from 0x0000 to 0xFFFF it sets a flip-flop to show that this has happened.
  - The Timer Prescaler (PR2:0) bits of Timer Interrupt Mask 2 (TMSK2) register: Allows you to change the frequency of the clock driving the 16-bit counter.
Wednesday 2/15
- More on Programming the 9S12 in C
- Huang Sectons 5.2 through 5.4
- Introduction to the 9S12 Hardware Subsystems
- Huang Sections 8.2-8.6
- ECT_16B8C Block User Guide
- A summary of 9S12 hardware subsystems
- Introduction to the 9S12 Timer subsystem
- Resets on the HC12
- Introduction to Interrupts on the 9S12
- Huang Sections 6.1-6.3
- MC9S12DP256B Device User Guide
- Notes
  - The 9S12 has a 16-bit free-running counter to determine the time and event happens, and to make an event happen at a particular time
  - The counter is normally clocked with an 8 MHz clock
  - The Timer Overflow (TOF) bit - when the timer rolls over from 0x0000 to 0xFFFF it sets a flip-flop to show that this has happened.
  - The Timer Prescaler (PR2:0) bits of Timer Interrupt Mask 2 (TMSK2) register: Allows you to change the frequency of the clock driving the 16-bit counter.
  - What happens when you reset the HC12?
  - Introduction to Interrupts
Friday 2/20
- Interrupts and the Timer Overflow Interrupt
- Huang Sections 6.1-6.4
- Notes
  - Using the Timer Overflow Flag to implement a delay on the HC12
  - Introduction to Interrupts
  - How to generate an interrupt when the timer overflows
  - How to tell the MC9S12 where the Interrupt Service Routine is located
  - Using interrupts on the HC12
  - The MC9S12 registers and stack when a TOF interrupt is received
  - The MC9S12 registers and stack just after a TOF interrupt is received
  - Interrupt vectors for the MCMC9S12DP256
  - Using interrupts on the MC9S12: Assembly and C
  - The MC9S12 registers and stack when a TOF interrupt is received
  - The MC9S12 registers and stack just after a TOF interrupt is received
  - Interrupt vectors for the MC9S12DP256
Monday 2/23
- The Real Time Interrupt
- Huang Section 6.6
- CRG Block User Guide
- Notes
  - Exceptions on the MC9S12
  - Using interrupts on the MC9S12
  - The Real Time Interrupt on the MC9S12
Wednesday 2/25
- The MC9S12 Input Capture Function
- Huang Sections 8.1-8.5
- ECT_16B8C Block User Guide
- Notes
  - Interrupts on the MC9S12
  - Capturing the time of an external event
  - The MC9S12 Input Capture Function
  - Registers used to enable the Input Capture Function
  - Using the MC9S12 Input Capture Function
  - A program to use the MC9S12 Input Capture in polling mode
  - Using the Keyword volatile in C
  - Using D-Bug12 Routines to Print Information to the Terminal
  - A program to use the MC9S12 Input Capture in interrupt mode
Monday 3/2
- The MC9S12 Output Compare Function
- Huang Section 8.6
- ECT_16B8C Block User Guide
- Notes
  - Review of Timer Overflow and Input Capture
  - Making an event happen at a specific time on the HC12
  - The MC9S12 Output Compare Function
  - Registers used to enable the Output Compare Function
  - Using the MC9S12 Output Compare Function
  - A program to use the MC9S12 Output Compare to generate a square wave
  - Setting and clearing bits in the Timer Subsystem
Wednesday 3/4
- The MC9S12 Output Compare Function
- Huang Section 8.6
- ECT_16B8C Block User Guide
- Notes
  - Review of Timer Overflow and Input Capture
  - Making an event happen at a specific time on the HC12
  - The MC9S12 Output Compare Function
  - Registers used to enable the Output Compare Function
  - Using the MC9S12 Output Compare Function
  - A program to use the MC9S12 Output Compare to generate a square wave
  - Setting and clearing bits in the Timer Subsystem
  - Introduction of Pulse Width Modulation
Friday 3/6
- The MC9S12 Pulse Width Modulation System
- Huang Sections 8.10 and 8.11
- PWM_8B8C Block User Guide
- Notes
  - What is Pulse Width Modulation
  - The MC9S12 Pulse Width Modulation system
  - Registers used by the PWM system
  - How to set the period for PWM Channel 0
  - How to set the clock for PWM Channel 0
  - Interdependence of clocks for Channels 0 and 1
  - PWM Channels 2 and 3
  - Using the MC9S12 PWM
  - A program to use the MC9S12 PWM
Monday 3/6
- Analog-to-Digital Converters
- Huang Sections 12.1-12.2
- Notes
  - Review of MC9S12 Pulse Width Modulation subsystem
  - Introduction to A/D Converters
Wednesday 3/18
- The MC9S12 A/D converter
- Huang Section 12.3-12.4
- ATD_10B8C Block User Guide
- Notes
Friday 3/20
- Introduction the Serial Communications
- Huang Sections 9.2, 10.2, 11.2
- SCI Block User Guide
- SPI Block User Guide
- IIC Block User Guide
- Notes
  - Parallel vs Serial Communcation
  - Synchronous and Asynchronous Serial Communication
  - Descripiton of the SPI (Serial Peripheral Interface) protocol
  - Descripiton of the IIC (Inter-Integrated Circuit) protocol
Monday 3/23
- Using the MC9S12 IIC Bus with the DS 1307 Real Time Clock
- Huang Sections 11.3-11.6
- IIC Block User Guide
- DS1307 Data Sheet
- Notes
  - The IIC bus on the MC9S12
  - MC9S12 registers used with the IIC bus
  - How to write data to a slave and read data from a slave
  - The Dallas Semiconductor DS 1307 Real Time Clock
Wednesday 3/25
- Review for Exam 2
- The 9S12 Serial Communications Interface
- 9S12 Serial Communications Interface (SCI) Block Guide V02.05
- Huang, Sections 9.2-9.6
- Notes
Friday 3/27
- Exam 2
Monday 3/30
- The 9S12 Serial Communications Interface
- 9S12 Serial Communications Interface (SCI) Block Guide V02.05
- Huang, Sections 9.2-9.6
- Notes
Wednesday 4/1
- The MC9S12 in Expanded Mode
- Huang Chapter 14
- MC9S12 V1.5 Core User Guide Version 1.2, Section 12
- Notes
Friday 4/3
- The 9S12 in Expanded Mode - External Ports
- Huang Chapter 14
- S12CPUV2 Reference Manual
- Multiplexed External Bus Interface (MEBI) Module V3 Block User Guide
- Notes
  - Simplified MC9S12 address, data and control bus
  - MC9S12 memory map
  - MC9S12 multiplexed address and data bus
  - Using LSTRB and A0 to determine which bytes (low and/or high) to read
Monday 4/6
- The 9S12 in Expanded Mode - External Ports
- Huang Chapter 14
- S12CPUV2 Reference Manual
- Multiplexed External Bus Interface (MEBI) Module V3 Block User Guide
- Notes
  - An external parallel input port
  - An external parallel output port
  - An external parallel input/output port
Wednesday 4/8
- The 9S12 in Expanded Mode - How to get into expanded mode
- Huang Chapter 14
- Multiplexed External Bus Interface (MEBI) Module V3 Block User Guide
- Module Mapping Control (MMC) V4 Block User Guide
- Notes
Monday 4/13
- The 9S12 in Expanded Mode - Using MSI logic to build ports The 9S12 in Expanded Mode - Timing
- Huang Chapter 14
- Notes
Wednesday 4/15
- Preparation for Final Lab Project
- Simple Motor Control
- Notes
Friday 4/17
- The MC9S12 in Expanded Mode - Timing
- Huang Chapter 14
- 9S12DP256B Device Users Guide
- Notes
Monday 4/20
- Motor Speed Control using Fuzzy Logic
- Notes
Wednesday 4/22
- More on Motor Speed Control using Fuzzy Logic
- Notes
Friday 4/24
- Calling an Assembly Language Function from C
- Brief Survey of Microprocessors and Microcontrollers
- Notes
Monday 4/27
- No Class
Wednesday 4/29
- Review for Exam 3
- Notes
Friday 5/1
- Exam 3

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Bill Rison, <rison@ee.nmt.edu >