keil setup for nRF51822AA

RE: keil setup for nRF51822AA

Yacire — Fri, 19 Aug 2016 08:42:35 GMT

Thanks Aryan,

It's clear know but i have still a little question about RAM setting in Keil with an example of SDk v11.

I use the S130 V2.0.0 and an example of SDK v11 , and the value for APP_RAM_BASE is 0x200013C8 in the softdevice specification chapter 15, but in keil with an example i have the APP_RAM_BASE equal to 0x20002080 (IRAM1 in keil); Normally it should be 0x200013C8 in the IRAM1 field in keil settings ?

For the ROM setting, everything is fine.The values are correct. They correspond exactly with softdevice specification and field IR0M base and size in keil, but not for the RAM. Best regards.

RE: keil setup for nRF51822AA

Susheel Nuguru — Fri, 19 Aug 2016 06:28:52 GMT

The softdevice release notes tells you the expected start address of the application which is IROM base address. The size of on a 128KB flash can be a maximum of
(FLASH_SIZE - IROM base) = (0X20000 - IROM base).

The softdevice release notes also tells you the amount of RAM it uses, so you application IRAM base is what the release notes tells you. Size is similar, on 16KB RAM it is
(RAM_SIZE - ( IRAM base offset ) ) = (0X4000 - ( IRAM base - 0X20000000 ) )

RE: keil setup for nRF51822AA

Yacire — Thu, 18 Aug 2016 13:21:58 GMT

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.

RE: keil setup for nRF51822AA

roger.k — Wed, 04 May 2016 07:37:42 GMT

Thanks a lot. It's very helpful.

RE: keil setup for nRF51822AA

Susheel Nuguru — Wed, 04 May 2016 06:49:49 GMT

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

RE: keil setup for nRF51822AA

roger.k — Tue, 03 May 2016 23:44:03 GMT

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.

RE: keil setup for nRF51822AA

Susheel Nuguru — Tue, 03 May 2016 12:12:56 GMT

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

RE: keil setup for nRF51822AA

roger.k — Tue, 03 May 2016 11:55:02 GMT

I'm using s130, sdk10.0.0. I hope your reply.

RE: keil setup for nRF51822AA

Susheel Nuguru — Tue, 03 May 2016 08:48:21 GMT

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.