# CARD_ReadEeprom

## Syntax

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

## Arguments

src | Transfer source EEPROM address.
dst | Transfer destination memory address.
len | Length of data being read, in bytes.

## Return Values

TRUE if the process succeeds. FALSE otherwise.

## Description

This function reads data synchronously from an EEPROM device. The function does not return control until it has finished processing. It returns TRUE if the process was successful or FALSE if it failed. 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_IsBackupEeprom
CARD_ReadEepromAsync
CARD_WriteEeprom
CARD_VerifyEeprom
CARD_WriteAndVerifyEeprom`

## Revision History

2004/12/09 Changed "IO processor" to "ARM7 processor".
2004/08/31 Added a description for the `CARD_GetResultCode` function.
2004/08/18 Added an explanation regarding the PXI interrupt.
2004/07/28 Added links.
2004/07/10 Removed a description related to busy loops.
2004/07/05 Initial version

CONFIDENTIAL