AnsweredAssumed Answered

kw41z with sky66112

Question asked by Gaetano Nugnes on Sep 25, 2019
Latest reply on Oct 1, 2019 by Sebastian Delrio

Hi,

i'm trying to connect the KW41Z with SKY66112. on my prototype board the pin of skywork are connected to the following pin:

CTX -> PTC2

CRX -> PTB3

ANT_SEL-> PTC4

CHL ->PTC6

CPS->PTC5

CSD ->PTB2

I'm trying to configure the chip with FAD of kw41z. I have enabled the FAD algorithm, setted the Timing49 (FFFFF01) and Timing50 (FF01FFFF), i m using FAD (FAD_EN=1,ANTX_EN = 11, NOT_GPIO = 0111). In this configuration the rx_switch is disabled because the pin crx was mounted with wrong pin(I put ptb3 pin always high).

My problem is that the signal is very low.

My board can't communicate with external router if is not near the sensor.

I noticed that the PTC6 is always low, even if set as gpio and high. But this should not interfere with the behavior of the PA/LNA.

Any help is very appreciate.

Thanks

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