RE: crc blocking

Elektrika — Sun, 10 Jan 2016 07:27:42 GMT

Thanks for the quick response. This will allow me to start designing the PCB.

Thanks

RE: crc blocking

Anders Strand — Fri, 08 Jan 2016 12:46:47 GMT

Hello.

You cannot use the crc block of the nRF51 radio to generate crc's for you. It will generate crc's for radio packets going out, and radio packets coming in. The latter ones you can extract, but i dont think this will be of use to you.

You can compute crc's in software, it should not demand much computing.

Since you will get radio interrupts from the 433 MHz at 1200 baud, this will be an interrupt roughly every 800 us (if i understood you correctly). If you take a look at chapter 11.2 of the softdevice s210 specification you will see that the softdevice will occupy the cpu from time to time. These tasks can take about 400 us.

I think you should be able to sucessfully detect all 433 MHz interrupts, but this should be tested.

-Anders