UM1627 datasheet(23/38 Pages) STMICROELECTRONICS

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UM1627

API specification

Return values

Troubleshooting

Comments

Following table defines and describes various blkLockIndicator values.

For Shadow/Low/Mid address spaces, there are two block lock levels. The secondary level

of block locking provides an alternative means to protect blocks from being modified. A

logical “OR” of the corresponding bits in the primary and secondary lock registers for a block

blkLockEnabled

Indicate whether the

address space block locking

TRUE – The address space block locking register

is enabled for register writes.

FALSE – The address space block locking register

is disabled for register writes.

blkLockState

Returns the blocks’ locking

status of indicated locking

level in the given address

space

Bit mapped value indicating the locking status of

the specified locking level and address space.

1: The block is locked from program/erase.

0: The block is ready for program/erase

Table 33. Return values for GetLock()

Type

Description

Possible values

UINT32

Successful completion or error value.

C90FL_OK

C90FL_ERROR_LOCK_INDICATOR

Table 34. Troubleshooting for GetLock()

Returned error bits

Possible causes

Solution

C90FL_ERROR_LOCK_INDICATOR

The input blkLockIndicator is

invalid.

Set this argument to correct

value listed in Table 35.

Table 35. blkLockIndicator definitions

Code Name

Value

Description

LOCK_SHADOW_PRIMARY

Primary block lock protection of shadow address space

LOCK_SHADOW_SECONDARY

Secondary block lock protection of shadow address

space

LOCK_LOW_PRIMARY

Primary block lock protection of low address space

LOCK_LOW_SECONDARY

Secondary block lock protection of low address space

LOCK_MID_PRIMARY

Primary block lock protection of mid address space

LOCK_MID_SECONDARY

Secondary block lock protection of mid address space

LOCK_HIGH

Block lock protection of high address space

Table 32. Arguments for GetLock() (continued)

Argument

Description

Range

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