Other Parts Discussed in Thread: CC1101
HI,
We are using CC1201 with our own protocol on 50kbps GFSK modulation. I'd like to know if I can use the built-in FEC and if yes, how?
What would the FEC bit error correction capability be and how much redundant bits it would add? What is the maximum length of data packet with FEC (if any impact)?
Any document on this would be nice, the user guide tells me this:
FEC is enabled by settings PKT_CFG1.FEC_EN = 1. The FEC implemented in CC120X is compatible
with the 802.15.4g FEC (NRNSC coding) when PKT_CFG2.FS_MODE_EN = 1 and the FEC
implemented in the CC1101 when PKT_CFG2.FS_MODE_EN = 0.
The RXFIFO must not be accessed during packet reception when FEC is enabled, hence the
complete packet, excluding preamble and sync, must not be larger than 128 bytes. When using FEC,
the symbol rate must not exceed 250 ksps for 4’ary modulation formats or 500 ksps for 2’ary
modulation formats.
..but in fact there is no FS_MODE_EN bit in PKT_CNFG2 register?
BR, Riku
