UM1620 datasheet(16/41 Pages) STMICROELECTRONICS

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API specification

UM1620

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Return values

Troubleshooting

Size

Size, in bytes, of the Flash

region to be programmed.

If size = 0, C90FL_OK is returned.

It should be multiple of 8 and its combination with dest

should fall in either main array or shadow row.

source

Source program buffer

address.

This address must reside on word boundary.

CallBack

Address of void call back

function pointer.

Any addressable void function address. To disable it

use NULL_CALLBACK macro.

Table 16. Return values for FlashProgram()

Type

Description

Possible values

UINT32

Successful completion or error value.

C90FL_OK

C90FL_ERROR_BUSY

C90FL_ERROR_ALIGNMENT

C90FL_ERROR_RANGE

C90FL_ERROR_PGOOD

Table 17. Troubleshooting for FlashProgram()

Returned error bits

Description

Solution

C90FL_ERROR_BUSY

New program operation

cannot be performed

because the Flash

module is busy with

some operation and

cannot meet the

condition for starting a

program operation.

Wait until the current operations finish.

Conditions that program cannot start

are:

1. program in progress (MCR-PGM

high);

2. program not in progress (MCR-PGM

low), but:

– erase in progress but not suspended;

– erase on main array is suspended but

program is targeted to shadow row;

– erase on shadow row is suspended.

C90FL_ERROR_ALIGNMENT

This error indicates that

dest/size/source isn’t

properly aligned

Check if dest and size are aligned on

double word (64-bit) boundary. Check if

source is aligned on word boundary.

C90FL_ERROR_RANGE

The area specified by

dest and size is out of the

valid C90FL address

range.

Check dest and dest+size. Both should

fall in the same C90FL address ranges,

i.e. both in main array or both in shadow

row

C90FL_ERROR_PGOOD

Program operation failed

because this operation

cannot pass PEG check.

Repeat the program operation. Check if

the C90FL is invalid or high voltage

applied to C90FL is unsuitable.

Table 15. Arguments for FlashProgram() (continued)

Argument

Description

Range

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