Zilog EZ80F91AZA Manual de usuario descargar pdf (Pagina 27)

UM007518-1211 Data Persistence Configuration

Zilog Real-Time Kernel: eZ80

CPU

User Manual

<ZDSII installed directory>\Program Files\Zilog\

ZDSII_eZ80Acclaim!_A.B.C\ZTP\ZTPX.Y.Z_Lib\RZK\Conf

The DATA_PER_CFG_t structure is defined below.

typedef struct

{

void * p_start_addr ;

/* start address of the location where data must be stored */

UINT32 ul_size ;

/* size of the erasable block */

DEV_INIT pfn_dev_init ;

DEV_READ pfn_dev_read ;

DEV_WRITE pfn_dev_write ;

DEV_ERASE pfn_dev_erase ;

DEV_CLOSE pfn_dev_close ;

} DATA_PER_CFG_t, *PDATA_PER_CFG_t ;

The location and type of nonvolatile memory in which values are stored can be configured

whether this memory is present in internal or external Flash. Table 11 specifies the loca-

tion in which these values are stored for the different platforms and configurations in the

eZ80Acclaim!

product line.

In addition to any standard linker directives, RZK provides a number of additional linker

directives settings for eZ80Acclaim! target processors, including settings that establish

data persistence within memory. These settings can be made in ZDS II by navigating to

Input Additional Directives within the Linker. Observe the following procedure to estab-

lish data persistence settings for project workspaces.

1. In the

Compiler tab, under Code Generation for all targets, deselect the One seg-

ment per module

checkbox.

Table 11. Data Storage Location of Values Related to Data Persistence

Platform eZ80F91 eZ80F92 eZ80F93 eZ80L92

RAM External Flash at

address 0x104000

External Flash at

address 0x104000

External Flash at

address 0x104000

External Flash at

address 0x104000

FLASH Internal Flash (infor-

mation page) at

address 0x0

Internal Flash (infor-

mation page) at

address 0x0

Internal Flash (infor-

mation page) at

address 0x0

External Flash at

address 0x02000

COPY TO RAM Internal Flash (infor-

mation page) at

address 0x0

Internal Flash (infor-

mation page) at

address 0x0

Internal Flash (infor-

mation page) at

address 0x0

External Flash at

address 0x02000

1 2 ... 22 23 24 25 26 27 28 29 30 31 32 ... 39 40

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