Is there a sample code for nRF52 SPI master without Soft device ?

RE: Is there a sample code for nRF52 SPI master without Soft device ?

MartinBL — Mon, 12 Feb 2018 08:58:53 GMT

Hi,

I think you are better off creating a new thread on this one. Please describe your problem in detail and tell us what SDK you are using. This thread is 2 years old and there are ~5 generations of SDKs released since then.

RE: Is there a sample code for nRF52 SPI master without Soft device ?

masloooo — Sun, 11 Feb 2018 16:46:40 GMT

hi mhaggag

I seem to came across the same problem you did. And did you figure it out? How to solve the "wrong configuration"error?

RE: Is there a sample code for nRF52 SPI master without Soft device ?

mhaggag — Wed, 08 Jun 2016 17:54:59 GMT

Hello Martrin,

I tried to initialize and send packets using the SPIM0 peripheral using the nrf_spi & the nrf_spim0 environment config files and following the specification described in the product specification online, but with all my efforts I am unable to disable the other peripherals shared with the SPIM0 like the TWIM0, SPIS0 ... etc

How can I disable the other shared peripherals ? I tried setting their enable to 0 but that didn't work

RE: Is there a sample code for nRF52 SPI master without Soft device ?

mhaggag — Tue, 07 Jun 2016 16:17:22 GMT

I am unable to create a project from scratch with the spi drivers and the necessary files. I tried to create a new project and added the nrf_drv_spi driver and all the associated driver and config files to the project run-time environment, but I still got those errors for just compiling

Rebuild target 'Target 1' compiling main.c... assembling arm_startup_nrf52.s... compiling system_nrf52.c... compiling nrf_drv_common.c... compiling nrf_delay.c... C:\Keil_v5\ARM\PACK\ARM\CMSIS\5.0.0-Beta4\CMSIS\Include\core_cm4.h(86): warning: #47-D: incompatible redefinition of macro "__WEAK" (declared at line 47 of "C:\Keil_v5\ARM\PACK\NordicSemiconductor\nRF_DeviceFamilyPack\8.6.1\Device\Include\compiler_abstraction.h") #define __WEAK attribute((weak)) C:\Keil_v5\ARM\PACK\NordicSemiconductor\nRF_Drivers\4.0.0-2.alpha\delay\nrf_delay.c: 1 warning, 0 errors compiling nrf_drv_spi.c... C:\Keil_v5\ARM\PACK\NordicSemiconductor\nRF_Drivers\4.0.0-2.alpha\spi_master\nrf_drv_spi.c(56): error: #35: #error directive: "Wrong configuration." #error "Wrong configuration." C:\Keil_v5\ARM\PACK\NordicSemiconductor\nRF_Drivers\4.0.0-2.alpha\spi_master\nrf_drv_spi.c: 0 warnings, 1 error compiling app_error.c... RTE\nRF_Libraries\nRF52832_xxAA\app_error.c(53): error: #29: expected an expression .line_num = line_num, RTE\nRF_Libraries\nRF52832_xxAA\app_error.c(54): error: #29: expected an expression .p_file_name = p_file_name, RTE\nRF_Libraries\nRF52832_xxAA\app_error.c(55): error: #29: expected an expression .err_code = error_code, RTE\nRF_Libraries\nRF52832_xxAA\app_error.c(67): error: #29: expected an expression .line_num = 0, RTE\nRF_Libraries\nRF52832_xxAA\app_error.c(68): error: #29: expected an expression .p_file_name = NULL, RTE\nRF_Libraries\nRF52832_xxAA\app_error.c(69): error: #29: expected an expression .err_code = error_code, RTE\nRF_Libraries\nRF52832_xxAA\app_error.c: 0 warnings, 6 errors compiling nrf_assert.c... ".\Objects\trial_3.axf" - 7 Error(s), 1 Warning(s). Target not created.

RE: Is there a sample code for nRF52 SPI master without Soft device ?

mhaggag — Tue, 07 Jun 2016 16:17:17 GMT

RE: Is there a sample code for nRF52 SPI master without Soft device ?

MartinBL — Tue, 07 Jun 2016 07:37:45 GMT

In SDK 11 there are two examples, SPIS and SPI, located in "SDK_11_folder\examples\peripheral". These examples show how to use SPI slave and master using the SPI(S) drivers without using the SD. It is as RK says though, it doesn't really matter if you use the SD or not other than that things might be a little clearer without thousands of lines of BLE stuff in the way.

RE: Is there a sample code for nRF52 SPI master without Soft device ?

RK — Tue, 07 Jun 2016 00:32:27 GMT

The SPI driver code is independent of the softdevice. You can just take the code and use it without a softdevice and it will work fine. All the Nordic drivers are standalone and work with or without softdevices.

If there are any places which use any sd_* functions at all, eg for configuring interrupts etc, there are a few files in the SDK with 'nosd' in their names which just provide trivial c implementations of those functions for simple source compatibility .. or you can just replace them with direct NVIC calls.