RF13 datasheet(42/56 Pages) RENESAS

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RL78 Family

Chapter 5

User Interface

EEPROM Emulation Library Pack02

R01US0068EJ0100

Rev.1.00

Page 42 of 53

Mar. 28, 2014

Execution Commands (eel_command_t)

Command

Description

EEL_CMD_STARTUP

This checks the block status and sets the system to the EEPROM emulation start

(started) state.

If two active blocks exist, the incorrect block is changed to an

invalid block.

Be sure to execute this command before executing commands other than the

EEL_CMD_FORMAT command and make sure that the command finishes normally.

EEL_CMD_WRITE

Note 1

This writes the specified data to the EEL blocks.

* The following arguments must be specified prior to execution.

・address_pu08:Specifies the start address of the RAM area where the write data

is stored.

・identifier_u08: Specifies the data ID of the write data.

EEL_CMD_READ

Note 1

This reads the specified data from the EEL blocks.

*The following arguments must be specified prior to execution.

・address_pu08:Specifies the start address of the RAM area where the read data

is stored.

・identifier_u08:Specifies the data ID of the read data.

EEL_CMD_VERIFY

Note 1,2

This performs internal verification to check signal levels of the active block. This

command verifies whether signal levels of flash memory cells are appropriate or

not.

EEL_CMD_REFRESH

Note1,3

This copies the latest stored data from the active EEL block (copy source block)

to the next block (copy destination block) in the EEL pool after the erase

processing. This makes the copy destination block active.

EEL_CMD_FORMAT

This initializes (erases) everything, including the data recorded in the EEL

blocks. Be sure to use this command before using EEPROM emulation for the

first time. Furthermore, use this command to initialize the entire blocks when an

error (such as no active block) has occurred in EEL blocks or when modifying

values in the descriptor table (unchangeable fixed values).

Because EEPROM emulation switches to the stopped state (opened) regardless

of the results after the processing finishes, execute the EEL_CMD_STARTUP

command to continue using EEPROM emulation.

EEL_CMD_SHUTDOWN

Note1

This sets EEPROM emulation to the stopped state (opened).

Note 1: Do not execute this command until the EEL_CMD_STARTUP command has finished normally.

Note 2: This command is not used to perform processing for reading written data and compare it. To compare

written data, use the EEL_Execute (EEL_CMD_READ) function through the user program.

Note 3: The erase processing is performed by executing the EEL_CMD_REFRESH command.

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