how use the io interrupt with cc2640?

xie jian

Other Parts Discussed in Thread: CC2640

we now use cc2640 to develop a project .but now we have a problem ,in our project we should to use io interrupt and spi to control extra IC,now we sucessed to use the spi but we have no idea to use the io interrupt in BLE Protocol Stack. anyone have experience about this.

over 10 years ago

0 xie jian over 10 years ago

Prodigy 30 points

My application is CC2640 need recieve external IC 10K CLK . Therefore, it is necessary to CC2640 IO mouth corresponding time control in 5 subtle within, of course, every time I take the interruption time is 20 a subtle, withdrew from the interrupt service routine. I would like to ask, such an application scenario is able to achieve.

0 YiKai Chen over 10 years ago in reply to xie jian

Guru 735685 points

You can try to refer to the key interrupt implementation in board_key.c of SimpleBLEPeripheral example.

0 xie jian over 10 years ago in reply to YiKai Chen

Prodigy 30 points

thanks for your answer ,we try it as your suggest ,it seems like when we push the key ,the callback funtion Response it 1-2 ms later. so ,the time is too long for our application .so ,how to reduce the Response time to 5 us .

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how use the io interrupt with cc2640?