Newbie to Nordic nrf51822

RE: Newbie to Nordic nrf51822

Brendan PG Ambayan — Sat, 18 Nov 2017 12:28:06 GMT

Hi! I am currently doing my project on BLE beacons. I am using nordic's nrf51822 and waveshare ble400. I am using a blackmagic probe instead of jlink to program it using Arduino IDE. I want to use sandeep's repo (see: github.com/.../ardu...) but I don't know what to do in order for it to work on blackmagic probe. I think his repo is in jlink build. Please help me guys.

RE: Newbie to Nordic nrf51822

Brendan PG Ambayan — Sat, 18 Nov 2017 12:27:53 GMT

RE: Newbie to Nordic nrf51822

tharun — Tue, 02 Aug 2016 13:08:43 GMT

I identified the issue that I face while I tried to flash in Keil 5. My problem was the application program overwrites the SoftDevice preloaded or got some error like "Error: Flash Download failed - "Cortex-M0" "that does not allow me to download the program to module. It was due to the wrong selection of IROM1 and IRAM1 to the application program. If you face this issue, just try out the following steps:

Step 1: Flash the SoftDevice based on the application you required using nRFgo Studio.

S110 - BLE Peripheral Stack S120 - BLE Central Stack S130 - BLE Peripheral Stack + BLE Central Stack S210 - ANT Stack S310 - ANT + BLE Stack

Step 2: Downlaod the application program to module using keil.

Select the correct device you used in target option and select the debugger you used and add your device to the debugger setting. Select the IROM1 and IRAM1 correctly. This are some common values for different combinations of SoftDevices and chips.

S110 v8.0 from SDS v2.0

IRAM base - 0x20002000
IRAM size(16 kB RAM) - 0x2000

IRAM size(32 kB RAM) - 0x6000

IROM base - 0x18000
IROM size(128 kB Flash) - 0x8000
IROM size(256 kB Flash) - 0x28000

S120 v2.1 from SDS v2.1

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

IRAM size(32 kB RAM) - 0x5800

IROM base - 0x1D000
IROM size(128 kB Flash) - 0x3000
IROM size(256 kB Flash) - 0x23000

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

S130 v2.0 from SDS v2.0

IRAM base - 0x20001870
IRAM size(16 kB RAM) - 0x2790

IRAM size(32 kB RAM) - 0x6790

IROM base - 0x1B000
IROM size(128 kB Flash) - 0x5000
IROM size(256 kB Flash) - 0x25000

S210 v5.0 from SDS v3.0

IRAM base - 0x20000900
IRAM size(16 kB RAM) - 0x3700

IRAM size(32 kB RAM) - 0x7700

IROM base - 0xD000
IROM size(128 kB Flash) - 0x13000
IROM size(256 kB Flash) - 0x33000

S310 v3.0 from SDS v3.0

IRAM base - 0x20002200
IRAM size(16 kB RAM) - 0x1E00

IRAM size(32 kB RAM) - 0x5E00

IROM base - 0x1D000
IROM size(128 kB Flash) - 0x3000
IROM size(256 kB Flash) - 0x23000

S132 v0.9 from SDS v0.5

IRAM base - 0x20002800

IRAM size(64 kB RAM) - 0xD800

IROM base - 0x1C000
IROM size(512 kB Flash) - 0x64000

S132 v2.0 from SDS v2.0

IRAM base - 0x20001870

IRAM size(64 kB RAM) - 0xE790

IROM base - 0x1C000
IROM size(512 kB Flash) - 0x64000

Try downloading.

RE: Newbie to Nordic nrf51822

Øyvind Karlsen — Fri, 15 Jul 2016 11:45:22 GMT

It is likely just that you did not erase the device before attempting to program the SoftDevice the first time around. Good to see that it is working now though.

The IRAM and IROM should be correctly configured in the examples you've followed, and since it's working that's a good indication =)

If you would like to know more about rom and ram management you can check out this blogpost.

RE: Newbie to Nordic nrf51822

tharun — Fri, 15 Jul 2016 09:22:29 GMT

I tried flashing SoftDevice s130 [ie../softdevice/s130/hex/s130_nrf51_2.0.0_softdevice.hex] using nRFgo Studio and then I opened keil 5 for buliding an example program [for eg: ble_app_uart_s130_pca10028.uvprojx ]. Clicking on option for target 'Device' I selected nRF51822_xxAA and set the debug used. I left the 'Target' within the option as default. I am unaware of IRAM/IROM so i left it as it is. After building, I tried Load but i got an error message as Error: Flash Download failed - "Cortex-M0" . Referring to devzone.nordicsemi.com/.../ this site i earsed the softdevice and load the program. But unfortunately I found it was not advertising. This is how I flashed the program. Hope you will tell me where i went wrong.

Also please guide me how to set IRAM/IROM for each application.

RE: Newbie to Nordic nrf51822

Øyvind Karlsen — Fri, 15 Jul 2016 07:41:00 GMT

I'm looking into updating the tutorial right now. I think you might have had issues with the SoftDevice not being programmed before programming the chip, or wrong IRAM/IROM settings.

RE: Newbie to Nordic nrf51822

tharun — Fri, 15 Jul 2016 07:30:07 GMT

I was trying to build and flash the program using .uvprojx file from the SDK using keil 5 and i failed. Now I tried to flash the hex file directly using nRFgo Studio and i successfully executed the tutorial [https://devzone.nordicsemi.com/tutorials/4/]. What do you think about this issue?

RE: Newbie to Nordic nrf51822

Øyvind Karlsen — Fri, 15 Jul 2016 06:29:47 GMT

Did you flash the SoftDevice before trying the examples with BLE?

RE: Newbie to Nordic nrf51822

tharun — Thu, 14 Jul 2016 13:06:45 GMT

I started working on BLE400 motherboard from this tutorial[http://morf.lv/modules.php?name=tutorials&lasit=35]. It was a good tutorial and from there i downloaded the BLE400 BSP. I added them to my SDK file as he said. When i looked into the code, he had done the Led mapping well and I hope this is fine for advertising too. Or if you had a glance at the that code he created please guide me whether i should add some code along with that for advertising.

RE: Newbie to Nordic nrf51822

Øyvind Karlsen — Thu, 14 Jul 2016 12:27:25 GMT

Hi,

The tutorial is based on the nordic development kit.

This board has a different pinout from the one you are using, I think LED 1 is mapped to P19 on your board, this means that you would have to change the pin mappings. You can find a guide to this in this link.

Best regards,

Øyvind