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cc430, simpliciti and rf-parameters

Other Parts Discussed in Thread: CC1101

Hi all!

I have some module based on cc430 and I use simpliciti 1.2.0. Simpliciti has some default rf settings for cc430 core (868MHz, 250kbod and something like that). It works, but I want to change some RF settings: data rate, deviation and RX filter BW in order that make better rf-link (increase work distance between network nodes)

1)  First I try to use some default settings from SmartRF Studio, for example "Data rate 1.2kbod, Dev 5.2kHz, 2-FSK, RX BW 58kHz Optimized for sensitivity". But it didn't work. AP didn't see join-packet from EP.

2) After that I took default rf-config file from Simpliciti (smartrf_CC430.h) and transfered data from it to the Smartrf Studio (changed register values). Next I changed data rate, deviation and RX filter BW in Smartrf, made new config file and included it in my IAR project. And it works.

But I don't know how calculate right values of data rate, deviation and RX filter BW to increase well-work distance!

Can somebody help with that?

PS: I send little information packet about 5-10 bytes payload and don't need high data rate. But max work distance is very important for me.

  • It's several posts on the forum covering which RF parameters that would give the best range. Basically low datarate will give better range than high datarate.

    In your case the default 1.2kbps setting from SmartRF Studio should be a good solution. Not sure why 1) does not work and 2) works but if you use the default 1.2kbps setting in 2) it should be a good start.

  • Hi TER

    Unfortunately I can't find any information about best RF-settings for cc430 (cc1101) on forum. 

    Best regards