MC68HC11E0CFNE2 Datasheet, PDF(238/242 Page) Freescale Semiconductor, Inc – M68HC11 CPU, Power-saving stop and wait modes, Low-voltage devices available (3.0–5.5 Vdc)

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MC68HC11E0CFNE2 Datasheet, PDF (238/242 Pages) Freescale Semiconductor, Inc – M68HC11 CPU, Power-saving stop and wait modes, Low-voltage devices available (3.0–5.5 Vdc)

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Programming Procedure

Programming Procedure

Once you have obtained PCbug11, use this step-by-step procedure to program your MC68HC711E9 part.

Step 1

â¢ Before applying power to the EVBU, remove the jumper from J7 and place it across J3 to ground

the MODB pin.

â¢ Place a jumper across J4 to ground the MODA pin. This will force the EVBU into special bootstrap

mode on power up.

â¢ Remove the resident MC68HC11E9 MCU from the EVBU.

â¢ Place your MC68HC711E9 in the open socket with the notched corner of the part aligned with the

notch on the PLCC socket.

â¢ Connect the EVBU to one of your PC COM ports. Apply +5 volts to VDD and ground to GND on the

power connector of your EVBU.

Also take note of P4 connector pin 18. In step 5, you will connect a +12-volt (at most +12.5 volts)

programming voltage through a 100-â¦ current limiting resistor to the XIRQ pin. Do not connect this

programming voltage until you are instructed to do so in step 5.

Step 2

â¢ From a DOS command line prompt, start PCbug11 with

â C:\PCBUG11\> PCBUG11 âE PORT = 1 with the EVBU connected to COM1

â C:\PCBUG11\> PCBUG11 âE PORT = 2 with the EVBU connected to COM2

PCbug11 only supports COM ports 1 and 2. If you have made the proper connections and have a high

quality cable, you should quickly get a PCbug11 command prompt. If you do receive a Comms fault error,

check your cable and board connections. Most PCbug11 communications problems can be traced to

poorly made cables or bad board connections.

Step 3

â¢ PCbug11 defaults to base 10 for its input parameters; change this to hexadecimal by typing

CONTROL BASE HEX

Step 4

â¢ You must declare the addresses of the EPROM array to PCbug11. To do this, type:

EPROM D000 FFFF

Step 5

You are now ready to download your program into the EPROM.

â¢ Connect +12 volts (at most +12.5 volts) through a 100-â¦ current limiting resistor to P4 connector

pin 18, the XIRQ* pin.

â¢ At the PCbug11 command prompt type: LOADS C:\MYPROG\ISHERE.S19

Substitute the name of your program into the command above. Use a full path name if your program is

not located in the same directory as PCbug11.

Programming MC68HC711E9 Devices with PCbug11 and the M68HC11EVBU, Rev. 0.1

238

Freescale Semiconductor

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