
UM024002-0512 The Z8051 OCD In-System Programmer
Z8051 On-Chip Debugger and In-System Programmer
User Manual
71
The ISP cannot calculate the checksum without a defined code buffer range (see Step 1).
Therefore, if you have not yet selected a target device yet, the Checksum field will display
????.
Load XData HEX File
Selecting Load XData HEX File from the HexData menu loads a hexadecimal file from
the host PC to the XData buffer of the ISP software; this hexadecimal file is in Intel HEX
format. Loading this file to the XData buffer space does not affect the memory space of
the target device.
Figure 80. OCD ISP Dialog
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