RE: What SoftDevice and API version my apps expect?

Vidar Berg — Thu, 04 Feb 2021 12:18:13 GMT

Hi,

1. It's probably easiest to just check the name of the Keil Softdevice flash target (ARM Keil), as the naming should reflect the Softdevice version and variant that is being used with the project. You could also search through your project for "SD_VERSION" and "SD_VARIANT_ID". These definitions are included in the nrf_sdm.h Softdevice API header and should correspond with the Softdevice that is being used.

To find the SDK version, you can check out the release notes in the SDK "documentation" folder (\nRF5_SDKxyz\documentation\).

2. Which SDK and SD combinations are supported for the 52840 can be found by looking at the compatibility matrix here: "SDKs and SoftDevices". Usually, it is quite straight forward to go from one Softdevice variant to another. You can compare existing SDK projects configurations for Softdeice variant x vs variant y to see what the actual differences are (e.g. compare the s113 vs the s140 project configuration in \nRF5_SDK_17.0.2_d674dde\examples\ble_peripheral\ble_app_uart\pca10056).

Best regards,

Vidar