It specifies page number as an argument and deletes the sector which contains the specified page number.
The size of 1 sector is 128 pages (16K bytes), and each page of 0~0x7f, 0x80~0xff, 0x100~0x17f... is considered to be 1 sector.
For return values, 0 is returned when delete is successful and -1 when failed.
Timer wait is operated in osFlashSectorErase. Since timer management is done by VI manager, it is necessary to boot VI manager with osCreateViManager before using this function. It takes from several msec to several hundred msec to delete data of 1 sector.