How to communicate between PC and mesh client via uart

RE: How to communicate between PC and mesh client via uart

zhengrui — Mon, 25 Jun 2018 07:18:01 GMT

Hi Bjorn Kvaale, I try to combine uart example (without ble) nrf SDK 15 with mesh sdk2.0.1. It still shows the same problem ,the codes are gray although I enabled the UART, APP_FIFO & APP_UART in sdk_config.h. Can you help me to find the reason?

RE: How to communicate between PC and mesh client via uart

zhengrui — Thu, 07 Jun 2018 07:15:22 GMT

I add the uart to mesh SDK ,and remove the repeated function (just remaining one of them ). also you should add all the path of the head file in uart example ,but don't change the preprocesser definitions ,the program didn't work when I added something to it. it's OK

RE: How to communicate between PC and mesh client via uart

arunbm123 — Thu, 07 Jun 2018 04:57:24 GMT

can u write a blog , how u did it?

RE: How to communicate between PC and mesh client via uart

zhengrui — Wed, 06 Jun 2018 13:43:24 GMT

I've solved it , thank you.

RE: How to communicate between PC and mesh client via uart

Bjørn Kvaale — Mon, 04 Jun 2018 09:02:25 GMT

Go to sdk_config.h configuration wizard, open the nRF_Libraries tab & make sure APP_FIFO_ENABLED is true, APP_UART_ENABLED is true, etc. Then recompile & the conditional preprocessor macros should not be grey anymore.

RE: How to communicate between PC and mesh client via uart

zhengrui — Mon, 04 Jun 2018 08:22:45 GMT

Yes you are right. But how to enable the softdevice and UART etc,I can't find the codes to enable them .

RE: How to communicate between PC and mesh client via uart

Bjørn Kvaale — Mon, 04 Jun 2018 07:25:47 GMT

The code is gray because the UART, APP_FIFO & APP_UART are not enabled in NRF_MODULE__ENABLED. You will have to enable these to stop the conditional preprocessor macros from being gray. It seems that the mesh does not work because the softdevice has not been enabled. I think you need to enable the modules first & then take it from there.

RE: How to communicate between PC and mesh client via uart

zhengrui — Sun, 03 Jun 2018 14:06:54 GMT

Hi Bjorn,

I have solved it and I can build the program successfully if I remove three NRF_MODULE_ENABLED functions.

They are

1://#if NRF_MODULE_ENABLED(UART)

//#endif //NRF_MODULE_ENABLED(UART)

2://#if NRF_MODULE_ENABLED(APP_FIFO)

//#endif //NRF_MODULE_ENABLED(APP_FIFO)

3://#if NRF_MODULE_ENABLED(APP_UART)

//#endif //NRF_MODULE_ENABLED(APP_UART)

If I don't remove them I can't use the functions defined in them ( the codes are gray between the #if and #endif ). I tried it when I just use the demo of peripheral uart in sdk v14.2 and the program worked successfully.

After built it successfully , I can see the nrf_log doesn't work and the program stopped in ERROR_CHECK(sd_softdevice_enable(&lfc_cfg, softdevice_assert_handler));.

The mesh is not work.

RE: How to communicate between PC and mesh client via uart

zhengrui — Sat, 02 Jun 2018 13:22:16 GMT

I've solved it by adding some things like NRF52_SERIES to list of preprocessor symbols.

But whne I build my program it shows more errors about .o files. Just like this :

It shows there are many functions are undefined or multiple defined . I couldn't deal with it and can you help me?

RE: How to communicate between PC and mesh client via uart

zhengrui — Sat, 02 Jun 2018 11:17:04 GMT

Now I combine the light switch client demo in mesh sdk1.0.1 with peripheral uart demo of sdk14.2. I added the mesh sdk in nRF5_SDK_14.2.0_17b948a\components\mesh and removed the sdk14.2 from F:\nrf5_SDK_for_Mesh_v1.0.1_src\external ,also I added & changed the path of these files. But I got some errors after that as follows:

Building ‘uart_pca10040’ from solution ‘uart_pca10040’ in configuration ‘Debug’
Compiling ‘main.c’
nrf_mesh_sdk.h
main.c
#error "Unknown target softdevice version"
Compiling ‘nrf_mesh_sdk.c’
nrf_mesh_sdk.h
nrf_mesh_sdk.c
#error "Unknown target softdevice version"
implicit declaration of function 'mesh_softdevice_setup' [-Wimplicit-function-declaration]
'lfc_cfg' undeclared (first use in this function)
each undeclared identifier is reported only once for each function it appears in
unknown field 'lfclksrc' specified in initializer
Compiling ‘nrf_mesh_weak.c’
nrf_mesh_prov_types.h
nrf_mesh_prov.h
nrf_mesh_weak.c
#error "At least NRF51, NRF52_SERIES or HOST must be defined."
nrf_mesh_assert.h
list.h
nrf_mesh_prov_bearer.h
nrf_mesh_prov_events.h
nrf_mesh_prov.h
nrf_mesh_weak.c
#error "Unknown target softdevice version"
nrf_mesh_weak.c
dfu_types_internal.h: No such file or directory
Compiling ‘provisioner.c’
nrf_mesh_prov_types.h
nrf_mesh_prov_events.h
provisioner.h
provisioner.c
#error "At least NRF51, NRF52_SERIES or HOST must be defined."
nrf_mesh_assert.h
list.h
nrf_mesh_prov_bearer.h
nrf_mesh_prov_events.h
provisioner.h
provisioner.c
#error "Unknown target softdevice version"
utils.h
packet.h
broadcast.h
advertiser.h
nrf_mesh_prov_bearer_adv.h
provisioner.c
#elif with no expression
#error "Unsupported hardware platform"
packet.h
broadcast.h
advertiser.h
nrf_mesh_prov_bearer_adv.h
provisioner.c
operator '||' has no right operand
Build failed

Coule you help me to solve the problem?

RE: How to communicate between PC and mesh client via uart

Bjørn Kvaale — Fri, 01 Jun 2018 08:01:37 GMT

You should try to adjust the RAM size like described. Go to Project -> Edit Options in SES, then click on the Common Configuration, go to the Linker section & double click on Section Placement Macros. There, you can change the RAM start & size values.

RE: How to communicate between PC and mesh client via uart

zhengrui — Fri, 01 Jun 2018 07:16:43 GMT

I mean that I don't know how to resolve it

RE: How to communicate between PC and mesh client via uart

zhengrui — Fri, 01 Jun 2018 07:08:31 GMT

I've download the zip file and try to do it as you said, and I build it without problem after added the necessary paths. But when I debug the program I get the assert as below:

<t: 30>, main.c, 762, ----- BLE Mesh Light Switch Server Demo -----
<warning> nrf_sdh_ble: RAM starts at 0x20002A68, can be adjusted to 0x20002760.
<warning> nrf_sdh_ble: RAM size can be adjusted to 0xD8A0.
<info> app: UART Start!
<error> app: ERROR 7 [NRF_ERROR_INVALID_PARAM] at F:\mesh tools\nRF5_SDK_14.2.0_17b948a\examples\ble_peripheral\ble_app_uart_Mesh\main.c:773

I don't the reason.

RE: How to communicate between PC and mesh client via uart

Bjørn Kvaale — Fri, 01 Jun 2018 06:55:32 GMT

You can also take a look at this infocenter link. In the link you provided, there is a zip file with the whole example code. I would suggest to download it & see how the main.c code is implemented.