UM1635 datasheet(24/42 Pages) STMICROELECTRONICS

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API specification

UM1635

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DocID024604 Rev 2

Return values

Troubleshooting

Comments

Table 34 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 register is enabled for register writes

TRUE – The address space block locking

FALSE – The address space block locking

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 31. Arguments for GetLock() (continued)

Argument

Description

Range

Table 32. Return values for GetLock()

Type

Description

Possible values

UINT32

Successful completion or error value.

C90FL_OK

C90FL_ERROR_LOCK_INDICATOR

Table 33. Troubleshooting for GetLock()

Returned Error Bits

Possible causes

Solution

C90FL_ERROR_LOCK_IN

DICATOR

The input blkLockIndicator is

invalid.

Set this argument to correct value

listed in Table 30

Table 34. 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

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