Zilog EZ80F91AZA Uživatelský manuál stáhnout pdf (Strana 38)

UM007518-1211

Zilog Real-Time Kernel: eZ80

CPU

User Manual

For details, refer to the Zilog Real-Time Kernel Reference Manual (RM0006), which is

available free for download from zilog.com and also located in the following path:

<ZDSII installed directory>\Program

Files\Zilog\ZDSII_eZ80Acclaim!_A.B.C\ZTP\ZTPX.Y.Z_Lib\RZK\Docs

Q: I have a different memory map on my custom hardware as compared to the develop-

ment board. What changes am I required to make to modify the RZK demo project to suit

my custom hardware in the ZDSII environment?

A: RZK uses the bootup files provided by ZDS II. This means that there are no separate

hardware configuration files required to configure the chip selects and the memory map.

So if your custom hardware features a different memory map as compared to the one pro-

vided in the demo programs for the development platform, then the following changes

must suit your custom hardware:

Modify the ROM and RAM address space to suit your memory map under

Project →

Settings → Linker → Address Space → ROM and RAM address spaces.

Incorporate the corresponding changes to the

Chip Selects, the Program Counter and

the

Stack Pointer under Project → Settings → Debugger → Setup, Program Coun-

ter

, Stack Pointer Long and the Chip Select Registers. Take special care while enabling/

disabling the internal Flash and internal SRAM.

The only change that may be required in the configuration files is for the wait states of the

internal flash. The following code string can be changed, depending on your requirements:

FLASH_CTRL = (FLASH_CTRL & ~FLASH_CTRL_7_WS) | FLASH_CTRL_3_WS;

This code string is available in the RZK_HW_Init() function, which is located in the

eZ80Hw_Conf_ZDS.c file.

Q: This FAQ contains many questions and answers, but I still have questions for which I

find no answers in this document. How can I get answers to my questions?

A: Zilog has a reputation for excellent customer service. Feel free to contact us via our

Customer Service page

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