Is the flash page no is continuous?

[ligang]

For example: region 0: 0x00000 -> 0x1b000 region 1: 0x1b000 -> 0x40000

In region 0: the first page(1024 bytes) is 0x400=1024 from 0x0000 -> 0x400 , ERASEPCR0 must be 0 or 1 In region 1: the first page(1024 bytes) is 0x1b000 ->0x1b400 ,ERASEPCR1 is 0 or 1 , or 108 or 109

I want to know that the region 1 the first page is base 0x1b000 page is 0 or base the 0x00000 page is 108 =0x1b000/0x400

[Petter Myhre]

The first page would be 108. This is however where you usually have your application, and I don't recommend erasing part of the application.

[ligang]

the value is 108*1024. that is why I can not erasing ok!