Hi,
We are developing a product using the ti154stack and we now want to trim the frequencies for our product / custom board. Essentially in production if needed.
Initially using SmartRF Studio and testing different cap array settings together with a spectrum analyzer, trimming the frequencies is working fine (by changing the cap array setting). Configuring the CCFG area to use these settings is then working good as well.
However, we have seen some variations between the (custom) boards we've tested on when using the same cap array value (at least some +-10kHz between two pre-series boards, we must be within +-24kHz).
Since we see some variations between the boards, we would like to be on the safe side and be able to change the trim values in production. We have production tests for the radio using direct RF commands (for continuous wave, PER etc). When running these tests the frequency synthesizer is set up (CMD_FS 0x0803), and here it is possible to change the "fractFreq".
I dont see that a similar fractional frequency can be set up with the api_mac layer. Is it possible in some way? (We've based our project off of the collector example from SDK3.10, using ti154stack)
I suppose it is not possible to change the cap-array values from SW? It seems a bit unpractical changing the CCFG per produced unit.
Thanks,
Hans
