UM1635 datasheet(35/42 Pages) STMICROELECTRONICS

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UM1635

API specification

Return values

Troubleshooting

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

Comments

The inputs lowEnabledBlocks, midEnabledBlocks and highEnabledBlocks are bit-mapped

arguments that are used to select the blocks to be evaluated in the Low/Mid/High 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 or

highEnabledBlocks.

The bit allocations for blocks in one address space are: bit 0 is assigned to block 0, bit 1 to

block 1, etc. The following diagrams show the formats of lowEnabledBlocks,

midEnabledBlocks and highEnabledBlocks for the C90FL2 module.

For low address space valid bits are from bit 0 to bit (lowBlockNum – 1). In which,

lowBlockNum is the number of low blocks returned from FlashInit();

For middle address space valid bits are from bit 0 and bit (midBlockNum – 1). In which,

midBlockNum is the number of middle blocks returned from FlashInit();

For high address space valid bits are from bit 0 to bit (highBlockNum – 1). In which,

highBlockNum is the number of high blocks returned from FlashInit();

For example, below are bit allocations for blocks in Low/Mid/High Address Space of

SPC56ELx

Bit Allocation for Blocks in Low Address Space:

Table 55. Return values for FactoryMarginReadCheck()

Type

Description

Possible values

UINT32

Successful completion or error value.

C90FL_OK

C90FL_ERROR_FMR_MISMATCH

C90FL_ERROR_FMR_NO_BLOCK

Table 56. Troubleshooting for FactoryMarginReadCheck()

Returned error bits

Possible causes

Solution

C90FL_ERROR_FMR_MIS

MATCH

The MISR value calculated by the user is

incorrect.

Re-calculate the MISR values using the

correct Data and address.

The MISR calculated by the Hardware is

incorrect.

Hardware Error.

C90FL_ERROR_FMR_NO_

BLOCK

None of the Blocks are enabled for

Factory Margin Read Check

Enable any of the blocks using variables

lowEnabledBlocks, midEnabledBlocks

and highEnabledBlock.

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