Simple Question About Memory Map and Region

[MANGO]

Hi, this is kind of a basic question.

So please forgive me if this is too easy...

This picture is from nRF51822_PS_3.1.pdf.

Also these pictures is from the nRF51_Series_Reference_manual v3.0.pdf

==1. The SRAM has the data.

Then what's inside the RAM where the address at 0x6000 0000 to 0xA000 0000 ?

If its has different things case by case, then what usually this RAM holds?

==2. The RAM where the address at 0x6000 0000 to 0xA000 0000, is a DRAM?

Or this RAM dropped a "S'?

==3. At the nRF51822_PS_3.1.pdf page 64, it says that

"The flash memory is organized in 256 byte rows starting at CODE and UICR start address.".

I use pstorage functions provided from the SDK 7.2 with SoftDevice S110.

When I save data using pstorage_store or pstorage_update function,

(skipping the cmd_queue stuffs)

the data are saved at "reserved" places in memory map in between

Code, FICR, and UICR?

Edited : Added Memory Screen when debugging

-Regards, Mango922

[RK]

1. Nothing. That picture is the generic Cortex-M0 diagram which shows the possible blocks on a Cortex-M0 system. The nrf51 manual shows what blocks are actually implemented. So there's nothing up at 0x60000000-0xA0000000.

2. The data is stored in the topmost flash pages of the CODE region, ie on 256k flash chips from 0x3fc00 or 0x3f800 or lower if you want more than a couple of kb of storages. Or if there's a bootloader installed at the top, just below that. pstorage comes out of your flash memory allocation.

[MANGO]

=1. Really? There's nothing? Can you tell me what page to look at the nrf51 manual?

Or do you mean the manual shows no information at that block?

=2. Hmm... You mean the System Address (maybe like 0x100010FF, the end of UICR) is mapped

to flash address 0x3FC00? Also, how did you know it is mapped to flash's address 0x3FC00?

+) One more thing. The RAM (addr : 0x60000000 ~) is a DRAM?