Zilog Z8F0130 - Manual (Page 151)

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Zilog Developer Studio II – Z8 Encore!
User Manual
127
internal Flash is selected, the address range is displayed in the Flash Configuration
area with an INT extension.
5. To perform a cyclic redundancy check on the whole internal Flash memory, click
CRC .
The 16-bit CRC-CCITT polynomial (x
16
+ x
12
+ x
5
+ 1) is used for the CRC. The
CRC is preset to all 1s. The least-significant bit of the data is shifted through the poly-
nomial first. The CRC is inverted when it is transmitted. If the device is not in
Debug
mode, this command returns FFFFH for the CRC value. The on-chip debugger reads
the program memory, calculates the CRC value, and displays the result in the Status
area.
6. Select the pages to erase before flashing in the Flash Configuration area.
Pages that are grayed out are not available.
7. Enter the appropriate offset values in the File Offset field to offset the base address of
the hex file.
The hex file address is shifted by the offset defined in the Start Address area. You need to
allow for the shift in any defined jump table index. This offset value also shifts the erase
range for the Flash.
8. To check the memory, click Memory . The View/Edit Memory dialog box is displayed.
In the View/Edit Memory window, you can perform the following tasks:
– Select the appropriate memory space from the Space drop-down list box.
– Move to a different address by typing the address in the address field and pressing
the
Enter key.
– Fill Memory – see page 129
– Save Memory to a File – see page 130
– Load a File into Memory – see page 131
– Perform a Cyclic Redundancy Check – see page 132

9. Select the Erase Before Flashing checkbox to erase all Flash memory before writing
the hex file to Flash memory.
You can also delete the Flash memory by clicking ERASE . Clicking ERASE deletes only
the pages that are selected.
Note:
Caution: