eraseBlock64K (SPIFlash)

Signatures

• bool SPIFlash::eraseBlock64K(uint32_t _addr)

What It Is For

Erase the 64 KB block containing the given address.

Parameters

• _addr: Any address within intended 64 KB erase window.

Behavior Details

Best for large contiguous rewrites and reducing total erase command count.

Return Semantics

Returns true on success.

Failure Behavior

Unsupported opcode/chip profile mismatch or bus errors can fail this call.

Common Mistakes

• Erasing a 64 KB block when only a small region needed reset.
• Failing to back up adjacent data in same block.
• Treating block erase boundaries as page boundaries.

Choosing Between Similar APIs

• Use eraseBlock64K() for large contiguous regions.
• Use 32K/4K erase to reduce unnecessary data destruction.
• Coordinate block boundaries with your storage partitioning.

Example

if (!flash.eraseBlock64K(addr)) {
  flash.error(VERBOSE);
}