UM1618 datasheet(39/51 Pages) STMICROELECTRONICS

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UM1618

API specification

Return values

Troubleshooting

The trouble shooting given here comprises of hardware errors and input parameter error.

Comments

The inputs lowEnabledBlocks, midEnabledBlocks, highEnabledBlocks and

nLargeEnabledBlock are bit-mapped arguments that are used to select the blocks to be

evaluated in the Low/Mid/High/ Large block (128K/256K) address spaces of main array. The

selection of the blocks of the main array is determined by setting/clearing the corresponding

bit in lowEnabledBlocks, midEnabledBlocks, highEnabledBlocks or nLargeEnabledBlocks.

For diagrams of block bit-map definitions of lowEnabledBlocks, midEnabledBlocks,

highEnabledBlocks and nLargeEnabledBlock, refer to ‘FlashErase’ function for more

details.

In case user specifies a break option other than C55_BREAK_NONE, the function is

stopped immediately if any Double Bit Detection or Single Bit Correction occurs. It is

possible to resume the operation by calling ‘FlashArrayIntegrityResume’ or start a new array

integrity check.

Table 60. Return values for FlashArrayIntegrityCheck

Type

Description

Possible values

UINT32

Successful completion or error value.

C55_OK

C55_ERROR_ADDR_SEQ

C55_ERROR_NO_BLOCK

C55_ERROR_MISMATCH

C55_ERROR_ALTERNATE

Table 61. Troubleshooting for FlashArrayIntegrityCheck

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 address sequence.

The MISR values calculated

by the Hardware are

incorrect.

Hardware Error.

C55_ERROR_NO_BLOCK

None of the Blocks are

enabled for Array Integrity

Check

Enable any of the blocks using variables

lowEnabledBlocks, midEnabledBlocks,

highEnabledBlocks or

nLargeEnabledBlocks.

C55_ERROR_ADDR_SEQ

User provides invalid

address sequence input

argument.

The address sequence input argument

must be either proprietary

(C55_ADDR_SEQ_PROPRIETARY) or

sequential

(C55_ADDR_SEQ_LINEAR). 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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