# CARD_VerifyFlash

## Syntax

  `#include <nitro/card.h>`
  `static inline BOOL CARD_VerifyFlash(u32 dst, const void *src, u32 len);`

## Arguments

`dst` | The FLASH address of the comparison target
`src` | Memory address of comparison source.
`len` | Byte length of data to be compared.

## Return Values

TRUE if the process succeeds and the data are the same. FALSE otherwise.

## Description

This function compares the data of the FLASH device with the designated memory. The function does not return control until it has finished processing. If the process succeeds and the data matches, the function returns TRUE. Otherwise, it returns FALSE. To get the value when processing fails, call the `CARD_GetResultCode` function. To use this function, you must first lock the access bus with the `CARD_LockBackup` function.
This function communicates with the ARM7 processor internally via PXI.
The process will not end if PXI interrupts are not enabled.

## See Also

`CARD_GetResultCode
CARD_IsBackupFlash
CARD_ReadFlash
CARD_VerifyFlashAsync
CARD_WriteAndVerifyFlash
CARD_WriteFlash`

## Revision History

2004/12/09 Changed "IO processor" to "ARM7 processor".
2004/08/31 Added a description of the `CARD_GetResultCode` function.
2004/08/23 Revised links due to function changes.
2004/08/18 Initial version.

CONFIDENTIAL