Patch nrf_bootloader_info.h in nRF5_SDK_17.0.0_9d13099\components\libraries\bootloader\.Patch nrf_dfu_types.h in nRF5_SDK_17.0.0_9d13099\components\libraries\bootloader\dfu\.The following files in the nRF5 SDK v17.0.0 need to be patched or added to support the nRF52805: Patching nRF5 SDK v17.0.0 to support the nRF52805 This is also listed in the SDKs and SoftDevices Compatibility Matrix for the nRF52805. The following SoftDevices are supported on the nRF52805 See the nRF52 Series comparison table on the Nordic Infocenter for a full overview of which peripherals that are present on the nRF52805 compared to the nRF52832. It is also important to note that the nRF52805 has reduced flash and RAM size compared to the nRF52832, hence not all nRF52 DK examples may fit on the nRF52805. Note that the nRF52805 does not have cache and hardware floating-point support. nRF52805 wlCSPĪll examples that are hardware compatible with the nRF52805 can be set up to emulate the nRF52805 on the nRF52832. Hardware compatibility means that a project uses only the resources present in nRF52805, including peripherals and memory. When running an emulated nRF52805 example on the nRF52 DK you will be able to use the buttons and LEDs, but when transferring the emulated project to nRF52805 hardware you will need to remap the GPIOs used on the nRF52832 to available GPIOs on the nRF52805 wlCSP package, see table below. The number of GPIOs available on the nRF52805 is lower than the nRF52805. The number of PPI channels on the nRF52805 is lower than on the nRF52832 The SAADC on the nRF52805 only has a limited number of channels compared to the nRF52832 This means that the emulated project running on the nRF52 832 may only be able to use an EasyDMA MAXCNT bit length of 8 bits, while on the nRF52805 you may use EasyDMA MAXCNT bit length of up to 14 bits, see the table below for which peripherals that are affected. The EasyDMAbit MAXCNT bit length for some of the digital serial interfaces differs between the nRF52832 and the nRF52805. You can fully emulate nRF52805 features using an nRF52 Development Kit (PCA10040), there are however, some differences that developers should be aware of when transferring emulated projects to nRF52805 hardware. Hardware emulation of nRF52805 on the nRF52 DK Keil MDK (nRF_DeviceFamily) v8.34.1 or newer.
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