Echelon FTXL Manual de usuario descargar pdf (Pagina 198)

186 Determining Memory Usage for FTXL Applications

The flash memory implementation in the FtxlNvdFlashDirect.c file requires that

each data segment begin on a flash sector boundary. Depending on the flash

sector size, this requirement can increase the total flash memory needed for the

application.

Table 51 describes the amount of non-volatile memory required for the network

image.

Table 51. Non-Volatile Memory Required for the Network Image

Network Data Bytes Required

Header 16

Overhead 102

Domain 21 (for each domain)

Network variables and aliases 15 (for each network variable [static or

dynamic] and each alias)

Address table 11 (for each address table entry)

Table 52 describes the amount of non-volatile memory required for the node

definition.

Table 52. Non-Volatile Memory Required for the Node Definition

Node Data Bytes Required

Header 16

Overhead 100

Node self-documentation string length

Node_SD_length

Static network variable self-

documentation string length

NV_SD_length

Network variables 37 (for each network variable [static or

dynamic])

Notes:

•

Node_SD_length

is the length of the self-documentation string for the

node

•

NV_SD_length

is the length of the self-documentation string for all

network variables (both static and dynamic)

Table 53 on page 187 describes the amount of non-volatile memory required for

the application data.

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Echelon FTXL Manual de usuario Pagina 198