SPI initialization for communicating with the sensor

RE: SPI initialization for communicating with the sensor

alokmishra — Mon, 26 Feb 2018 13:03:29 GMT

Hi,

I worked with the attached zip file once again and this project as it is works with error code 0.

But doing it in exactly same way also in my implementation it does not work. Error code 8 means invalid state i.e, either the pin is in use or the module is not initialized. Considering the attached zip is not doing much and just involve one user.. Pin number seems not to be in use already and module also is getting initialized. Can you please provide some input?

Thanks

RE: SPI initialization for communicating with the sensor

alokmishra — Sat, 24 Feb 2018 17:58:12 GMT

I am still not able to resolve this issue with app_gpiote_user_register() as my custom board is not able to advertise and connect if I keep this app_gpiote_user_register() as enabled. If I comment it out, the custom board is able to advertise and connect everytime. Debugging this I am getting error code 8 for the app_gpiote_user_register() routine. The attached zip also gives the same error code for me.

Thanks

RE: SPI initialization for communicating with the sensor

alokmishra — Wed, 21 Feb 2018 17:52:29 GMT

Thanks.

RE: SPI initialization for communicating with the sensor

haakonsh — Wed, 21 Feb 2018 11:40:16 GMT

I've attached a keil project that seems to work:

devzone.nordicsemi.com/.../app_5F00_gpiote.zip

RE: SPI initialization for communicating with the sensor

alokmishra — Mon, 19 Feb 2018 15:18:07 GMT

MAX_USER is 5.

Initially I was performing these same steps as you have mentioned above but, the app_gpiote_user_register() fails with ERROR code 4.

Thanks.

RE: SPI initialization for communicating with the sensor

haakonsh — Mon, 19 Feb 2018 14:46:20 GMT

What is the size of MAX_USER?

You do not need to initialize the driver or pass it configs when using the app_gpiote library.

Steps to use the library:

APP_GPIOTE_INIT()
app_gpiote_user_register()
app_gpiote_user_enable()

See SDK14.2/components/libraries/gpiote/app_gpiote.h for more information

RE: SPI initialization for communicating with the sensor

alokmishra — Mon, 19 Feb 2018 06:30:48 GMT

Hi Håkon,

I am still not able to resolve this issue. Can you please let me know if some pointers on this?

Thanks.

RE: SPI initialization for communicating with the sensor

alokmishra — Fri, 16 Feb 2018 10:49:07 GMT

Any input on why the app_gpiote_user_register() routine returns the ERROR code? Is it required to perform APP_GPIOTE_INIT(MAX_USERS) before registering the user (though the result is same for me even if done this way)?

Result is same by performing the same in following way :

if (!nrf_drv_gpiote_is_init())
{
err_code = nrf_drv_gpiote_init();
APP_ERROR_CHECK(err_code);
}

nrf_drv_gpiote_in_config_t gpiote_in_config;
gpiote_in_config.is_watcher = val;
gpiote_in_config.hi_accuracy = val;
gpiote_in_config.pull = val;
gpiote_in_config.sense = val;

err_code = nrf_drv_gpiote_in_init(Pin, &gpiote_in_config, gpiote_evt_handler);
APP_ERROR_CHECK(err_code);
nrf_drv_gpiote_in_event_enable(Pin, true);

RE: SPI initialization for communicating with the sensor

alokmishra — Thu, 15 Feb 2018 08:53:20 GMT

Hi Håkon,

While performing the initialization for the SPI, I am configuring a pin in order to monitor the motion events from the sensor over SPI using the routine : nrf_gpio_cfg_input(pin num, NRF_GPIO_PIN_NOPULL). After this I am registering a gpiote user/handler for the same using the call to app_gpiote_user_register() routine.

On debugging, it is found that the app_gpiote_user_register() routine returns the ERROR code 4(No Memory).

Just to inform that I am not doing APP_GPIOTE_INIT(MAX_USERS) or app_gpio_init() before this anywhere in the code currently but I have already tested by performing the above initialization also with same result.

Thanks

RE: SPI initialization for communicating with the sensor

haakonsh — Wed, 14 Feb 2018 15:13:56 GMT

Hey Alok,

We need more information. "with the SPI initialization code enabled the device stops even advertising", what do you mean by stops advertising, does your softdevice calls return any error message?

Cheers,

Håkon.