topic Re: K32W CTUG in Wireless MCU

K32W CTUG

danieltseng — Fri, 10 Jul 2020 09:50:24 GMT

Refer to K32WQN9090CTUG.pdf

In RX test mode
[ 1 ] RX trigger mode test
    What signal generator is used?
    No DIO17 pins on the circuit?
    When do I need to do this test?

[ 2 ] RX continuous mode test

When do I need to do this test?

Re: K32W CTUG

stephanie_m — Wed, 15 Jul 2020 16:13:15 GMT

Hello,

I believe that to help you clarify the usage of the tool and the connections you are asking for, could you please help me check this application note?

Regards,

Estephania

Re: K32W CTUG

danieltseng — Thu, 16 Jul 2020 10:47:27 GMT

I found two bug.
一。Ch2.3.2.3 of AN12798 requires unmodulate signal, but K32W_Certi_Tools does not have this option.

二。Frequency measurement also requires unmodulated continuous signal to be correct

Re: K32W CTUG

stephanie_m — Thu, 16 Jul 2020 17:23:01 GMT

Hello.

Could you please check the CW mode? it seems that you are referring to the modulated options.

Please refer to the JN-AN-1242-Customer-Module-Eval-Tool

Regards,

Estephania

Re: K32W CTUG

danieltseng — Fri, 17 Jul 2020 04:06:44 GMT

I have two questions, I will open another topic to ask.

K32W AN12798 bug1

https://community.nxp.com/message/1342031

Re: K32W CTUG

stephanie_m — Mon, 20 Jul 2020 18:33:38 GMT

Hello,

Please check the posts and the internal answers as well.

Regards,

Estephania

Re: K32W CTUG

Xiang_Li — Fri, 24 Jul 2020 08:34:22 GMT

>> [ 1 ] RX trigger mode test
>> When do I need to do this test?
>> [ 2 ] RX continuous mode test
>> When do I need to do this test?

Short answer:

If PER measurement required, use trigger mode. Else use continuous mode.

Trigger mode needs a trigger signal from the tester. Continuous mode doesn't.

Long answer:

For Rx continuous mode test, the DUT (device-under-test, aka, your design) just keeps receiving all packets, sent from a reference tester. At the end, software counts how many good packets are received (CRC check ok).

If any packet lost in the air, because of the RF interference or other reasons, in the Rx continuous test we will not know. Because we don't know how many packet in total should be received.

So we need the Rx trigger mode test. When the reference tester sends a packet, it also gives a pulse on a wire. This wire would be connected to the Rx side. By counting how many pulses on the wire, the Rx would know how many packet in total. And then it can calculated how many actual packet it received, as well as the PER (packet error rate).

>> What signal generator is used?

Check the RF tester being used. It probably has a trigger signal output, that will connect to your IUT device.

>> No DIO17 pins on the circuit?

I am not sure on this. I suggest you to check the SW implementation of the Certi tool on K32W and QN9090/30