UM1618 datasheet(44/51 Pages) STMICROELECTRONICS

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API specification

UM1618

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DocID024371 Rev 3

Return values

Troubleshooting

Comments

Refer to ‘FlashArrayIntegrityCheck’ for details.

Assumptions

It assumes that the Flash block is initialized using a ‘FlashInit’ API.

Table 71. Return values for UserMarginReadCheck

Type

Description

Possible values

UINT32

Successful completion or error

value.

C55_OK

C55_ERROR_ALTERNATE

C55_ERROR_MARGIN_LEVEL

C55_ERROR_NO_BLOCK

C55_ERROR_MISMATCH

Table 72. Troubleshooting for UserMarginReadCheck

Returned Error Bits

Possible causes

Solution

C55_ERROR_MISMATCH

The MISR values

calculated by the user are

incorrect.

Re-calculate the MISR values using

the correct Data and margin level.

The MISR values

calculated by the

Hardware are incorrect.

Hardware Error.

C55_ERROR_NO_BLOCK

None of the Blocks are

enabled for Factory

Margin Read Check

Enable any of the blocks using

variables lowEnabledBlocks,

midEnabledBlocks,

highEnabledBlocks and

nLargeEnabledBlocks

C55_ERROR_MARGIN_LEVEL

User provides invalid

margin level.

The margin level input argument must

be either program level

(C55_MARGIN_LEVEL_PROGRAM)

or erase level

(C55_MARGIN_LEVEL_ERASE). Any

other value is unacceptable.

C55_ERROR_ALTERNATE

User calls this function via

alternate interface.

Alternate interface does not support

this operation.

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