UM1627 datasheet(9/38 Pages) STMICROELECTRONICS

9 / 38 page

DocID024497 Rev 2

9/38

UM1627

API specification

2.6

Normal mode functions

2.6.1

FlashInit()

Description

This function reads the Flash configuration information from the Flash control registers and

initialize parameters in SSD configuration structure. ‘FlashIni()’ must be called prior to any

other Flash operations.

Prototype

UINT32 FlashInit (PSSD_CONFIG pSSDConfig);

Arguments

Return values

Troubleshooting

Comments

‘FlashIni()’ checks the C90FL_MCR_RWE and C90FL_MCR_EER bit, but does not clear

them when any of them is set. If RWE bit is set, Flash program/erase operations can still be

performed.

Assumptions

None.

Table 4. Arguments for FlashInit()

Argument

Description

Range

pSSDConfig

Pointer to the SSD

Configuration Structure.

The values in this structure are chip-dependent.

Please refer to Section 2.3 for more details.

Table 5. Return values for FlashInit()

Type

Description

Possible values

UINT32

Indicates either success or failure type. It is a bit mapped

return code so that more than one condition can be

returned with a single return code. Each bit in the returned

value, except for C90FL_OK, indicates a kind of current

status of C90LC module.

C90FL_OK

C90FL_INFO_EER

C90FL_INFO_RWE

Table 6. Troubleshooting for FlashInit()

Error codes

Possible causes

Solution

C90FL_INFO_EER

An ECC Error occurred during a

previous read.

Clear FLASH_MCR-EER bit.

C90FL_INFO_RWE

A Read While Write Error occurred

during a previous read

Clear the FLASH_MCR-RWE bit.

UM1627 数据表(PDF) 9 Page - STMicroelectronics

UM1627 数据表(HTML) 9 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38

数据表下载

链接网址

UM1627 数据表(PDF) 9 Page - STMicroelectronics

UM1627 数据表(HTML) 9 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38

数据表 下载

链接网址

数据表下载