buttons interrupts are so much that sensor colecting proess donot have enough time slice to execute.

[lyman]

in nRF5_SDK_14.2.0_17b948a project,   we get sensor x y z w data in a loop process, the data which print in uart  shows very smoothly.

but if i push buttons many times in a second, the sensor data pause a little time and later going on.

i doubt that continue buttons interrupt may take too much time so that process can not get a time slice to run.

how can i slove it ? although i am pushing buttons in a high frequence, i don want sensor data pause, miss some import position data.

thanks 

[Håkon Alseth]

Which project are you using?

If you are using the "examples/peripheral/twi_master_using_nrf_twi_mngr" example, it will read the sensor registers for lm75b on button 1 and the registers for mma7660 on button 3, which will queue TWI transfers.

 

Best regards,

Håkon

[awneil]

Remember that mechanical switches bounce - so each "press" can generate multiple interrupts!

What are you doing in the interrupt handlers?

You should generally avoid extensive and/or slow processing in interrupt handlers ...

lyman said:

i don want sensor data pause

So don't use interrupts for the buttons - poll them at some suitable point in your sensor loop ...

[lyman]

dear in this project : examples\ble_peripheral\ble_app_uart\main.c; 

sensor  routine may have no relationship with button. so it is not the reason ...

void bsp_event_handler(bsp_event_t event)
{

switch (event)
{
button_push=1;


case BSP_EVENT_KEY_0:
break;

case BSP_EVENT_KEY_1:
}
}

int main(void)

{

#if 1
while(1){
nrf_delay_ms(25);
sensor_data_colect(); ---- sensor

if(button_push==1) -- button 
{

button_push=0;

}

}
#endif

}

[lyman]

dear  i have changed the code, but it does not work..

void bsp_event_handler(bsp_event_t event) 
{

switch (event)
{
button_push=1; 


case BSP_EVENT_KEY_0: 
break;

case BSP_EVENT_KEY_1: 
}
}

int main(void)

{

#if 1
while(1){
nrf_delay_ms(25);
sensor_data_colect(); ---- sensor

if(button_push==1) -- button 
{

 do something long ...

button_push=0;

}

}
#endif

}

[awneil]

There's no need to post the code it twice - all of the posts are visible together!

How to properly post source code:

lyman said:

it does not work

So what debugging have you done to find what's going wrong?