Change the project of nrf52833 to nrf52820

[helen]

Hi   

       1、I according to the link below to change the project of nrf52833 to nrf52820，but failed!

Nordic Semiconductor Infocenter

2、Figures below are my modified in the project”radio_test_pca10100“,My purpose is that nrf52820 can run this project.

3、Have 4 errors after built.

[Amanda Hsieh]

Hi, 

Seems your preprocessor settings miss DEVELOP_IN_NRF52833 and NRFX_COREDEP_DELAY_US_LOOP_CYCLES=3. Please update as

APP_TIMER_V2
APP_TIMER_V2_RTC1_ENABLED
BOARD_PCA10100
BSP_DEFINES_ONLY
CONFIG_GPIO_AS_PINRESET
DEVELOP_IN_NRF52833
FLOAT_ABI_SOFT
INITIALIZE_USER_SECTIONS
NO_VTOR_CONFIG
NRF52820_XXAA
NRFX_COREDEP_DELAY_US_LOOP_CYCLES=3

Are you using SDK 17.1.0? I have modified pca10100e_radio_test.zip from pac10010 with the instruction of the "Creating your own emulated project" section. Please place it under nRF5_SDK_17.1.0_ddde560\examples\peripheral\radio_test to run the unmodified radio_test.

Regards,
Amanda  

[helen]

Hi

           The problem is solved，Thank you very much！

[Amanda Hsieh]

Hi, 

Please verify the answer to close the case. Thanks. 

-Amanda

[helen]

Hi 

        I found that the __FPU_PRESENT  in the nrf52820.h caused this problem.The __FPU_PRESENT  defaults to 0 in nrf52820.h，The __FPU_PRESENT  defaults to 1 in nrf52833.h. The problem is solved after I modified __FPU_PRESENT to 1 in the nrf52820.h.