51822 SDK 12.3 DFU setting

RE: 51822 SDK 12.3 DFU setting

Sigurd — Mon, 03 Dec 2018 16:33:46 GMT

When enabling the SoftDevice, the function sd_ble_enable() in softdevice_handler.c will tell you how much RAM the SoftDevice needs. When setting IRAM1 start to 0x20002600, 0x2600 will be allocated to the SoftDevice, and rest to the application(0x1A00). In total you have 0x2600 + 0x1A00 = 0x4000 = 16 kB. We have a guide here you should read, it's 3 years old, but it covers the basics.

RE: 51822 SDK 12.3 DFU setting

June6 — Fri, 30 Nov 2018 00:45:08 GMT

Can you tell me, plz.

Wish you all the best.

RE: 51822 SDK 12.3 DFU setting

June6 — Fri, 30 Nov 2018 00:43:32 GMT

All right, everything's working fine. But how did you get that. And what do I do when I change it to QFAB or change to other chips like 52832

RE: 51822 SDK 12.3 DFU setting

Sigurd — Wed, 28 Nov 2018 09:34:53 GMT

Yes, try IRAM1 Start: 0x20002600 Size: 0x1A00 instead.

RE: 51822 SDK 12.3 DFU setting

June6 — Wed, 28 Nov 2018 02:38:18 GMT

Hi，Sigurd

Do you have a solution?

RE: 51822 SDK 12.3 DFU setting

June6 — Wed, 28 Nov 2018 01:03:07 GMT

I've tried this before, and there are new problems

Looks like there's no space for anything

RE: 51822 SDK 12.3 DFU setting

Sigurd — Tue, 27 Nov 2018 13:32:44 GMT

Hi,

For the nRF51822-QFAA variant, try to use IRAM1 Start: 0x20002C00 Size: 0x1380 instead.