CTRDG_Read

# CTRDG_EraseAgbFlashChip

## C Specification

      #include <nitro/ctrdg.h>

      u16 CTRDG_EraseAgbFlashChip(void);

      Corresponding AGB function: u16 (*EraseFlashChip)()

## Arguments

None.

## Return Values

Returns 0 if the erasure succeeds. Returns a non-zero value if it fails.

## Description

Completely erases all data on the AGB backup device chip.

The access cycle setting does not need to be set beforehand because it is created inside the function. In addition, the `OS_InitTick` function must be called before this function because clock ticks are used by this function to measure timeouts.

Note: All interrupts are disabled inside this function and the cartridge bus is locked for a set period. In particular, when this function is called, do not use DMA that starts automatically during direct sound and V/H blank synchronization, display synchronization, cartridge request, etc.

Note that the AGB backup device cannot be accessed normally with version IS-NITRO-DEBUGGER 1.66 or earlier.

## See Also

`CTRDG_EraseAgbFlashSector, CTRDG_EraseAgbFlashChipAsync, CTRDG_EraseAgbFlashSectorAsync
`

## Revision History

05/25/2006 Added a description that the AGB backup device cannot be accessed normally with version IS-NITRO-DEBUGGER 1.66 or earlier.
04/07/2006 Initial version.

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