RH850 datasheet(37/66 Pages) RENESAS

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Data Flash Access Library - Type T01, European Release

User Interface (API)

R01US0079ED0103

User Manual

4.4.3 Operation control

4.4.3.1 R_FDL_SuspendRequest

Outline: This function requests suspending a Flash operation in order to be able to do other Flash

operations.

Interface: C Interface

r_fdl_status_t R_FDL_SuspendRequest (void);

Arguments: Parameters

Argument

Type

Access

Description

None

Return value

Type

Description

r_fdl_status_t



R_FDL_OK

Operation finished successfully



R_FDL_ERR_REJECTED

Wrong library handling flow:



No operation is ongoing



FDL is already in suspended state

Pre-

conditions:

A Flash operation must have been started and not yet finished (request structure status

value is R_FDL_BUSY). The FDL must not be processing another suspend request.

Post-

conditions:

Call R_FDL_Handler until the library is suspended (status R_FDL_SUSPENDED)

If the function returned successfully, no further error check of the suspend procedure is

necessary, as a potential error is saved and restored on R_FDL_ResumeRequest.

The request structure used before suspend shall not be modified by the command(s)

issued during suspended state.

Description: This function requests suspending a Flash operation in order to be able to do other Flash

operations.

Example:

r_fdl_status_t

srRes_enu;

r_fdl_request_t myReq_str_str;

uint32_t

/* Start Erase operation */

myReq_str_str.command_enu

= R_FDL_CMD_ERASE;

myReq_str_str.idx_u32

= 0;

myReq_str_str.cnt_u16

= 4;

myReq_str_str.accessType_enu

= R_FDL_ACCESS_USER;

R_FDL_Execute (&myReq_str_str);

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