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XBOOT
The following procedure describes the use of the XBOOT command:
1. Assemble or fill EVB MCU EEPROM (locations $B600-$B6FF) with program to be
bootloaded (transmitted/transferred) to target MC68HC11 MCU device.
2. Enter XBOOT command and addresses without pressing carriage return <CR> key as
follows:
>XBOOT B600 B6FF
3. Remove previously installed fabricated jumper from jumper header J6.
4. Connect jumper wire from jumper header J6 pin 1 to RxD input of target MC68HC11
MCU device.
5. Reset target MC68HC11 MCU device in bootstrap mode.
6. Press carriage return <CR> key to invoke XBOOT command.
Since TxD is not connected to the terminal, the user will not observe any changes on
the terminal display CRT. The bootload process takes approximately a third of a
second to finish.
7. Disconnect jumper wire installed in step d.
8. Install fabricated jumper removed in step c.
9. Press EVBU reset switch S1 to restore normal EVB operation.
M68HC11EVB/D
Transfer Data Bootstrap Mode
(Do not press the RETURN key.)
OPERATING INSTRUCTIONS
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