CEG 411/611 Laboratory 1. Laboratory Familiarization

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1 CEG 411/611 Laboratory 1 PURPOSE Laboratory Familiarization The purpose of this lab is to introduce you to the equipment and procedures used in the CEG 411/611 Laboratory. This is a one-week project. The Prelab Report must be done before you do the Experiments. PRELAB (10%) Study the step-by-step instructions of this lab and the corresponding references. Briefly answer the following questions. (1) Refer to textbook Sec and write down an ASCII monitor command line that can modify the memory contents at location 0x09A0. (2) Which pin on the CSM-12C32 board do you measure with the oscilloscope, when the tone.c program is executed? How about when the tonevb.asm program is executed instead? EXPERIMENT (90%) General notes In all lab experiment specifications, a check mark ( ) indicates a question for which you are required to write an answer. Please keep neat, carefully labeled, and properly ordered notes. A double check ( ) indicates a point in the experiment where you should have the Lab Instructor check your progress before continuing. However, please feel free to ask your Lab Instructor for help at any time. To indicate that each section your work has been satisfactorily completed, your notes must be signed by the Laboratory Instructor. Notes for this lab In this lab, you are to be familiar with the usage of the CSM-12C32 EVB, the compilation of a 6812 C program, the execution of those programs on the board, and the usage of an HP 54602B oscilloscope. (1) (20%) Connect the CSM-12C32 board to the PC through a serial cable. Remember whether COM1 or COM2 is used. Double click the ICC12 icon and an ICC12 IDE window should pop up. Use the Terminal menu to display a terminal window. Press the Open Com Port button and then press the reset button of the CSM-12C32 board. An MON12 monitor message should show up in the terminal window. (If not, one reason may be the terminal environment is not set up right. Use the Tools menu and the Environment Options to change the terminal setting so that it is consistent with the board setting, normally 9600 baud, no parity, 1 stop bit, hardware flow control.) Type in? (a question mark without the quotes) and then press the Enter key. A list of monitor commands should be displayed. Practice simple monitor commands such as MD and MM. Note that the memory map of the board is as follows. The space of 1.5 Kbytes between $0800 and $0DFF will be used for the code, data, and stack. $0000-$03FF Registers Reserved $0800-$0DFF RAM Application Space (Code, Data, Stack: 1.5 KBytes) $0E00-$0F89 RAM Reserved for Monitor $0F8A-$0FFF RAM Application Interrupt Vector Table Reserved $8000-$BFFF Flash $C000-$FFFF Flash Monitor Space

2 (2) (30%) Within the ICC12 environment, explore different menu items and do the following. 1. Create a new project (by using the New... under the Project menu) and add the C:\ceg411\tone.c program to the project (by using the Add File under the Project menu.) 2. Setup the compiler options (by using the Project menu, the Option sub-menu, and then the Target page) so that the custom configuration is consistent with the CSM-12C32 EVB configuration. (For example, you may use 0x0800 for the code area and 0x0dff for the stack area.) 3. Compile the program by using the Build under the Project menu. 4. Look at the compiler output files by using the Output Listing option and the Map File option under the View menu. Use Notepad or Wordpad to look at another compiler output file, ***.s19. (The filename of the s19 file should be the same as the project name.) Compare the output listing file and the s19 file and figure out their formats and contents. 5. Switch to the terminal window. Reset the board, press the Enter key on the PC keyboard, type a monitor command load (or simply l ), and use the terminal window to download the ***.s19 file to the EVB board. 6. Use the monitor command call 0800 to execute the program. (Assume 0x0800 is the starting address.) 7. Use the oscilloscope to measure the square wave that should be produced by the tone.c program. (Refer to the code and the EVB schematic diagram so as to identify the EVB pin that the scope should be connected to.) Play with the control knobs of the scope and record the square wave frequency. (3) (10%) For the statement TC0=TCNT+3000 in the while(1) loop in tone.c, change the constant from 3,000 to 1,500. Compile the program and load it to EVB. Execute the program and use the oscilloscope to measure the square wave frequency which should be recorded. (4) (10%) Change the constant again from 1,500 to 1. Compile the program and load it to EVB. Execute the program and use the oscilloscope to measure the square wave frequency which should be recorded. (5) (20%) Open a command prompt window (by double clicking an icon on the desk top), change the working directory to C:\ceg411\ASM, type the dir command, and then type the command as12 tonevb.asm. A new file tonevb.s19 should be generated by the command. Use the ICC12 terminal window to download the s19 file to the EVB and execute the program, i.e., following Steps 5 and 6 of the previous experiment. Use the oscilloscope to measure the square wave frequency which should be recorded. Note that a different pin is used this time.

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4 Device User Guide 9S12C128DGV1/D V Block Diagram Figure 1-1 MC9S12C-Family Block Diagram VSSR VDDR VDDX VSSX Voltage Regulator ATD VDDA VSSA VRH VRL VDDA VSSA VRH VRL VDD2 VSS2 VDD1 VSS1 BKGD XFC VDDPLL VSSPLL EXTAL XTAL RESET 16K, 32K, 64K, 96K, 128K Byte Flash MODC Background Debug12 PLL 1K, 2K, 4K Byte RAM Clock and Reset Generation HCS12 CPU COP Watchdog Clock Monitor Periodic Interrupt Timer IOC0 IOC1 IOC2 IOC3 IOC4 IOC5 IOC6 IOC7 AN0 AN1 AN2 AN3 AN4 AN5 AN6 AN7 MUX DDRT DDRAD PTT PTAD PAD0 PAD1 PAD2 PAD3 PAD4 PAD5 PAD6 PAD7 PT0 PT1 PT2 PT3 PT4 PT5 PT6 PT7 PE0 PE1 PE2 PE3 PE4 PE5 PE6 PE7 PTE DDRE XIRQ IRQ R/W LSTRB/TAGLO ECLK MODA/IPIPE0 MODB/IPIPE1 NOACC/XCLKS System Integration (SIM) PWM PW0 PW1 PW2 PW3 PW4 PW5 Keypad Interrupt DDRP PTP PP0 PP1 PP2 PP3 PP4 PP5 PP6 PP7 TEST/VPP PA7 PA6 ADDR15 ADDR14 Multiplexed Address/Data Bus DDRA PTA PA5 PA4 ADDR13 ADDR12 PA3 PA2 PA1 ADDR11 ADDR10 ADDR9 PA0 ADDR8 PB7 PB6 ADDR7 ADDR6 DDRB PTB PB5 PB4 PB3 PB2 PB1 PB0 ADDR5 ADDR4 ADDR3 ADDR2 ADDR1 ADDR0 SCI RXD TXD MSCAN is not available on the 9S12GC Family Members RXCAN MSCAN TXCAN MISO SPI SS MOSI SCK Key Int DDRJ PTJ DDRS PTS DDRM PTM PJ6 PJ7 PS0 PS1 PS2 PS3 PM0 PM1 PM2 PM3 PM4 PM5 Multiplexed Wide Bus DATA15 DATA14 DATA13 DATA12 DATA11 DATA10 DATA9 DATA8 DATA7 DATA6 DATA5 DATA4 DATA3 DATA2 DATA1 DATA0 Signals shown in Bold are not available on the 52 or 48 Pin Package Signals shown in Bold Italic are available in the 52, but not the 48 Pin Package Internal Logic 2.5V VDD1,2 VSS1,2 I/O Driver 5V VDDX VSSX PLL 2.5V VDDPLL VSSPLL A/D Converter 5V VDDA VSSA VRL is bonded internally to VSSA for 52 and 48 Pin packages Voltage Regulator 5V & I/O VDDR VSSR 27

5 C S M 1 2 C 3 2 A U G U S T 1, U S E R G U I D E Figure 3: MCU_PORT Connector V x 1 2 PE1/IRQ* Default Signal Assignments GND 3 4 RESET* MCU PORT Signal Disable PS1/TXD 5 6 MODC/BKGD PS0/RXD 7 8 NC PS1/TXD COM1 TXD CT-5 PP5/KWP NC PS0/RXD COM1 RXD CT-4 PE0/XIRQ* NC PE1/IRQ* SW1 User1 PT0/PW0/IOC NC PP5/KWP5 SW2 User2 PT1/PW1/IOC NC PA0 LED1 User3 PM4/MOSI PAD00/AN00 PB4 LED2 User4 User Options PM2/MISO PAD01/AN01 PM5/SCK PB4 PM3/SS* PA0 PE4/ELCK PM1/TXCAN PE7/XCLKS PM0/RXCAN PAD02/AN PT2/PW2/IOC2 PAD03/AN PT3/PW3/IOC3 PAD04/AN PT4/PW04/IOC4 PAD05/AN PT5/IOC5 PAD06/AN PT6/IOC6 PAD07/AN PT7/IOC7 Note: Default signal assignment should be disabled to use the signal at connector J1 User options include 2 LED s, and 2 pushbutton switches. Each user option may be enabled individually using the USER option header. When the appropriate USER option jumper is installed, the associated user option is enabled. Removing a jumper disables the associated user option. Table 2: User Option Jumper Settings Jumper On Off MCU Signal User 1 Enable SW1 Disable SW1 PE0/XIRQ* User 2 Enable SW2 Disable SW2 PP5 /KWP5 User 3 Enable LED1 Disable LED1 PA0 User 4 Enable LED2 Disable LED2 PB4 Switches Two push button switches provide momentary, active low, input to the MCU for user applications. Pressing a switch provides a momentary low logic level input tot the MCU. SW1 and SW2 provide input to MCUI/O ports PE0 and PP5 respectively. LED s Two LED s provide active-low, visual output for user applications. A low voltage level driven out on the appropriate MCU port causes the LED to light. MCU ports PA0 and PB4 drive LED1 and LED2 respectively. 10

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