keil setup for nRF51822AA

[roger.k]

Hi. I'm beginner. I want to use nRF51822xxAA chip on keil compiler. project->Option->Target->IROM1 start, Size & IRAM1 start, size. Please let me know IROM's start and size and IRAM's start and size for nRF51822xxAA.

[Susheel Nuguru]

It depends on which softdevice you are using (or if you are not using any softdevice) There is one older post with some numbers for older softdevices here. You will get the idea of where to find the information. If you can tell me if you are using any softdevice, then i can give you exact numbers.

[Susheel Nuguru]

S130 which version? 2.0.0? If it is S130 v2.0.0 or 2.0.1 then

IROM1 start:0X1B000       size:  0x23000
IRAM1  start:0x20013c8 , size:  0x6C38

[roger.k]

It's S130 1.0.0. In SDK10.0.0, S130 hex name is "s130_nrf51_1.0.0_softdevice.hex" I hope your reply.

[Susheel Nuguru]

If you are doing this on devkit PCA10028 then it must have 32KB RAM and 256KB Flash. S130 v1.0 from SDS v1.0

IRAM base - 0x20002800
IRAM size(16 kB RAM) - 0x1800
IRAM size(32 kB RAM) - 0x5800

IROM base - 0x1C000

IROM size(128 kB Flash) - 0x4000
IROM size(256 kB Flash) - 0x24000

[roger.k]

Thanks a lot. It's very helpful.

[Yacire]

Hi Aryan,

Can you explain how you find this values please ? I worked with the nrf51 Dk 256 kB Flash and 32 kB of RAM, and i want to work now with Insight Sip module with 128 kB of Flash and 16 kB and RAM, so i need to modify the IRAM and IROM field in keil.

I saw the RAM and ROM management blog post but i don't understand how the values are found. Regards.