Categories: Auto Repair

Carprog Motorola MC68H11xx Series Processor Reading Guide

This article collect contents related on Caprog reading Motorola MC68H11xx series processor.It include MC68H11xx processor wire connection,troubleshooting,processor pinout definition.

For Motorola MPU MC68HC11 series programming use A10 cable.

You can recognize Motorola (Freescale) MPU by maskset:

This MPU maskset is 4C11W.

First digit “4” is mask series number, in practice can be 0, 1, 2, 3, 4 or 5, but for programming is not important.

Second 4 symbols is always letter + digit + digit + letter: this is processor maskset or encrypted processor type. All processor marking can by custom made, like “FORD S2234234” or SC2323454 but always you can find maskset on Motorola or Freescale processors.

Preparations:

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Before programming always select right processor type according maskset.

How to connect CarProg programmer:

For HC11 programming use A10 cable 7 color wires:

YELOW – communication signal from MPU;

GREEN – communication signal to MPU;

BLUE – Reset signal to MPU;

ORANGE – MODB signal to MPU, low level;

BROWN – GND (ground);

RED – switched +5V;

VIOLET – switched +12V;

Troubleshooting:

CarProg ERROR messages:

Communication error – no communication between CarProg and Motorola processor -check MPU type, try to select quartz frequency manually.

Check processor MODA and MODB pins: in programming mode these pins must be low level (or connected to GND or VSS). In most cases MODB is connected to VDD –pull-up MODB from board.

MC68HC11 processor security bit in many case is ON (especially in car radios), and when you try to read MPU internal memory first time, MPU will clear security bit itself. But if security bit was ON, after first try to read HC11, processor internal EEPROM will by lost.

Don’t try to read HC11 MPU if you not sure that you have file for EEPROM recovery.

To understand better onboard MPU programming problems, you can use table with right programming signals and voltages, described in table.

If you can’t read or write MPU with CarProg, check:

– did you was select right MPU type;

– did quartz resonator Q is the same in circuit board and in CarProg options;

– did all programming signals have right form and voltage;

1.MC68HC11A0, MC68HC11A1, MC68HC11A8

Check processor MODA and MODB pins: in programming mode these pins must be low level (or connected to GND or VSS). In most cases MODB is connected to VDD – pull-up MODB from board. MODA connect to VSS. If processor is 11A1, 11A8, 11E1 in 52PLCC package – just short pins 1+2+3.

MPU Mask Set

MC68HC11A0 B84T

MC68HC11A1 C11W

A38P

A49N

B46E

B95T

B96D

MPU Mask Set

MC68HC11A8 B65H

2.MC68HC11E9, MC68HC711E9, MC68HC11E20

Check processor MODA and MODB pins: in programming mode these pins must be low level (or connected to GND or VSS). In most cases MODB is connected to VDD – pull-up MODB from board.

MPU Mask Set

MC68HC11E1 C91F

B60R

MC68HC11E9 C83W

C96K

D35E

D82R

F96J

C96N

MC68HC11E20 E22B

E82K

H89E

K82H

MC68HC711E9 E50W

H50W

K81H

MC68HC711E20 D43R

G59F

H19S

3.MC68HC11EA9, MC68HC711EA9 !!! mask D47J, 1D46J can be secured and will be erased while reading !!!

Check processor MODA and MODB pins: in programming mode these pins must be low level (or connected to GND or VSS). In most cases MODB is connected to VDD – pull-up MODB from board.

MPU Mask Set

MC68HC11EA9 D47J

D46J

4.MC68HC11F1, MC68HC711F1

MPU Mask Set

MC68HC11A8 B77M

C15J

C94R

E61H

E87J

F37E

5.MC68HC11K4, MC68HC711K4

Check processor MODA and MODB pins: in programming mode these pins must be low level (or connected to GND or VSS). In most cases MODB is connected to VDD – pull-up MODB from board.

MPU Mask Set

MC68HC11K4 D43F

E62H

E75J

K00W

MC68HC711K4 D67F

K54X

6.MC68HC11KA4, MC68HC711KA4

Check processor MODA and MODB pins: in programming mode these pins must be low level (or connected to GND or VSS). In most cases MODB is connected to VDD – pull-up MODB from board.

MPU Mask Set

MC68HC11KA4 E57S

E59B

F60M

H95B

MC68HC711KA4 D61N

7.MC68HC11KG4, MC68HC711KG4

Check processor MODA and MODB pins: in programming mode these pins must be low level (or connected to GND or VSS). In most cases MODB is connected to VDD – pull-up MODB from board.

MPU Mask Set

MC68HC11KG4 G32V

F53E

MC68HC711KG4 H86A

8.MC68HC11KW1

MPU Mask Set

MC68HC11KW1

9.MC68HC11PH8, MC68HC711PH8

MPU Mask Set

MC68HC11PH8 D48J

H30R

MC68HC711PH8