Softdevice (s132) can not be written to nRF52832. (Cortex-M4 error)

[y001]

Hello

I am trying to do BLE communication using BLENano2 (nRF52832) now.

Therefore, using SDK 15.0.0, we are writing a program with keil u5.

Since writing to the softdevice is required to use the BLE function, I am trying to write the softdevice s132 from keil.

If I try to write, Coretex-M4 error will appear, so please let me know if there is a solution.

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The soft device was written according to the following procedure.

1. Download "SoftDevice_S132" in "Pack installer".
2. Create a new project from uVision5's Project menu
3. Select "Manage Run-Time Environment" and select s132_hex from nRF_SoftDevice
4. Select "Select Folder for Objects ..." on the Output tab of "Options for Target", and select "\ RTE \ nRF_SoftDevice \ nRF52832_xxAA" under the project folder.
5. Enter the file name "s132_nrf52_2.0.0-7.alpha_softdevice.hex" in the Name of Executable.
6. Change Use of Debug tab to "CMSIS-DAP Debugger"
7. Set the Size to 0x2000 (the value of RAM_BASE of the memory map) in the "Flash Download" tab
Select Add and add "nRF52xxx_UICR"
8. Do "LOAD"

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If I do this, "Cortex-M4" will be displayed, and you will get an error of Flash Download failed.

[Stian Røed Hafskjold]

Hi, you need to do a full erase of the chip before programming the softdevice.

Download the command line tools: https://www.nordicsemi.com/Software-and-Tools/Development-Tools/nRF5-Command-Line-Tools

Then use nrfjprog --eraseall

[y001]

Thank you for reply!

I connect to development using BLENano2 and DAPLink instead of J-Link.

Therefore, you can not use command line tools.
Is there a way to do this without being just J-Link?

[Stian Røed Hafskjold]

Not sure how it works with DAPLink, but there's probably a way to do a full erase using that tools as well.

[y001]

DAPLink of BLENano2 said that it is sufficient to drag and drop sotfdevice to the file that appears when plugging USB into PC.

After that, I could write it by dragging and dropping the hex file created when compiling with keil in the same way.