The Error Vector Magnitude (EVM) performance of the Nordic7002EK in the 5G frequency band is not good

[zyan]

Hi all,

I am using the Nordic 7002 EK board with the Nordic 5340 DK board.

When I conducted the production testing (using IQ xstream), I found that for TX-HT-MCS7 in the 5520 channel, the TX power was 14.5 dB but the EVM was only about -20 dB (usually it is about -27 dB).

I checked the OTP area to see if I could decrease the TX power to improve the EVM, but only the MAC address or the CALIB can be changed.

Is there anything I can do to improve it or is this the limit for the EVM test?

Thanks & regards

[JONATHAN LL]

Will look in to this and provide more info later on. 

Can you share what NCS version you are using? 


Regards,
Jonathan

[zyan]

Hi,Jonathan

Thanks for your quick reply. I used the radio_test sample and my NCS version is 2.6.0.

[JONATHAN LL]

Have forwarded the questions and will update you when I have some answer for you Zhang. 

Regards,
Jonathan

[JONATHAN LL]

1. No, based on our observations EK is slightly better compared to DK.

2. Following is measurement data on EK board#96. We do not see EVM failures.

NCS Version	DUT Device	Band	Pattern	Channel	Rate	Default Power	Measured Power	EVM
2.7.0	QFN EK#96	2.4 GHz	G	1	54M	16	14.86	-32.8
				6	54M		15.02	-31.3
				13	54M		15.35	-32.7
			N	1	MCS7		14.68	-32.1
				6	MCS7		14.87	-31.2
				13	MCS7		15.16	-31.9
		5 GHz	N	36	MCS7	13	11.84	-30.7
				104	MCS7		12.08	-31.8
				149	MCS7	12	11.86	-31.7
			AC	36	MCS7	13	11.8	-32
				104	MCS7		12.03	-32.4
				149	MCS7	12	11.82	-32

3. There is no provision for adjusting power except during production test. The chip may have been production tested and optimal settings are configured in OTP. Please share OTP data by executing the following command wifi_radio_ficr_prog otp_read_retrim_params

[zyan]

Hi, Jonathan

Sorry for my late reply. We received another 7002EK board and got the same issues as with the previous one, here is the OPT data by executing the wifi_radio_ficr_prog otp_read_retrim_params.

[JONATHAN LL]

Please conduct one more experiment. Execute following command sequence in channel 104 in which EVM is failing.

wifi_radio_test get_temperature

wifi_radio_test init 104
wifi_radio_test tx_pkt_tput_mode 1
wifi_radio_test tx_pkt_mcs 7
wifi_radio_test tx 1

wifi_radio_test get_temperature

Note down EVM after above sequence is executed. Share temperature log before and after executing the sequence and please share FICR information as well. 

Regards,
Jonathan

[JONATHAN LL]

zyan said:

here is the OPT data by executing the wifi_radio_ficr_prog otp_read_retrim_params.

From the OTP data, this board does not have any configured data in re-trim region. Can you please execute following commands and provide us log?

wifi_radio_ficr_prog otp_read_params

wifi_radio_ficr_prog otp_read_retrim_version

wifi_radio_ficr_prog otp_read_retrim_params

Regards,
Jonathan

[zyan]

Hi,Jonathan

When I sent the command wifi_radio_test get_temperature, I got an error and could not perform the EVM test. The error log is in text1.txt, and for the OPT test, the log is in text2.txt.

Fullscreen 6036.test1.txt Download

[15:01:24.686]send→◇wifi_radio_test get_temperature
□
[15:01:24.686]receive←◆wifi_radio_test get_temperature[1B[40D[00:00:25.430,175] [1;31m<err> os: ***** SECURE FAULT *****[0m
[00:00:25.430,206] [1;31m<err> os:   Address: 0x0[0m
[00:00:25.430,206] [1;31m<err> os:   Attribution unit violation[0m
[00:00:25.430,236] [1;31m<err> os: r0/a1:  0x00000000  r1/a2:  0x2000c824  r2/a3:  0x0000000a[0m
[00:00:25.430,236] [1;31m<err> os: r3/a4:  0x2000c880 r12/ip:  0x00029985 r14/lr:  0x00009721[0m
[00:00:25.430,236] [1;31m<err> os:  xpsr:  0x21000200[0m
[00:00:25.430,267] [1;31m<err> os: Faulting instruction address (r15/pc): 0x00018c46[0m
[00:00:25.430,297] [1;31m<err> os: >>> ZEPHYR FATAL ERROR 41: Unknown error on CPU 0[0m
[00:00:25.430,328] [1;31m<err> os: Current thread: 0x20009530 (shell_uart)[0m
[39D[J[00:00:25.492,614] [1;31m<err> coredump: #CD:BEGIN#[0m
[39D[J[00:00:25.498,321] [1;31m<err> coredump: #CD:5a4501000300050029000000[0m
[39D[J[00:00:25.505,523] [1;31m<err> coredump: #CD:4102004400[0m
[39D[J[00:00:25.511,566] [1;31m<err> coredump: #CD:0000000024c800200a00000080c800208599020021970000468c010000020021[0m
[39D[J[00:00:25.522,216] [1;31m<err> coredump: #CD:0000000000000000000000000000000000000000000000000000000000000000[0m
[39D[J[00:00:25.532,867] [1;31m<err> coredump: #CD:00000000[0m
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[39D[J[00:00:25.556,427] [1;31m<err> coredump: #CD:2fd301000000000056e400000000000001000000ffffffffffffffff30950020[0m
[39D[J[00:00:25.567,077] [1;31m<err> coredump: #CD:fca40020030000002000000000000000a8c90020000000008895002088950020[0m
[39D[J[00:00:25.577,728] [1;31m<err> coredump: #CD:0001000035d600005cdf01000100000004000000b8a000207368656c6c5f7561[0m
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[15:01:25.008]receive←◆aaaaaaaaaaaaaaaaaaaaaaaaaa[0m
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[39D[J[00:00:25.945,800] [1;31m<err> coredump: #CD:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa[0m
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[39D[J[00:00:26.020,446] [1;31m<err> coredump: #CD:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa[0m
[39D[J[00:00:26.031,097] [1;31m<err> coredump: #CD:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa[0m
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[39D[J[00:00:26.052,429] [1;31m<err> coredump: #CD:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa[0m
[39D[J[00:00:26.063,079] [1;31m<err> coredump: #CD:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa[0m
[39D[J[00:00:26.073,730] [1;31m<err> coredump: #CD:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa[0m
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[39D[J[00:00:26.116,363] [1;31m<err> coredump: #CD:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa[0m
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[39D[J[00:00:26.169,677] [1;31m<err> coredump: #CD:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa[0
[15:01:25.472]receive←◆m
[39D[J[00:00:26.180,358] [1;31m<err> coredump: #CD:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa[0m
[39D[J[00:00:26.191,009] [1;31m<err> coredump: #CD:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa[0m
[39D[J[00:00:26.201,660] [1;31m<err> coredump: #CD:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa[0m
[39D[J[00:00:26.212,341] [1;31m<err> coredump: #CD:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa[0m
[39D[J[00:00:26.222,991] [1;31m<err> coredump: #CD:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa[0m
[39D[J[00:00:26.233,642] [1;31m<err> coredump: #CD:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa[0m
[39D[J[00:00:26.244,323] [1;31m<err> coredump: #CD:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa[0m
[39D[J[00:00:26.254,974] [1;31m<err> coredump: #CD:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa[0m
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[39D[J[00:00:26.276,306] [1;31m<err> coredump: #CD:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa[0m
[39D[J[00:00:26.286,956] [1;31m<err> coredump: #CD:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa[0m
[39D[J[00:00:26.297,607] [1;31m<err> coredump: #CD:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa[0m
[39D[J[00:00:26.308,288] [1;31m<err> coredump: #CD:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa[0m
[39D[J[00:00:26.318,939] [1;31m<err> coredump: #CD:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa[0m
[39D[J[00:00:26.329,589] [1;31m<err> coredump: #CD:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa[0m
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[39D[J[00:00:26.361,572] [1;31m<err> coredump: #CD:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa[0m
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[39D[J[00:00:26.404,235] [1;31m<err> coredump: #CD:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa[0m
[39D[J[00:00:26.414,886] [1;31m<err> coredump: #CD:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa[0m
[39D[J[00:00:26.425,537] [1;31m<err> coredump: #CD:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa[0m
[39D[J[00:00:26.436,187] [1;31m<err> coredump: #CD:aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa[0m
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[39D[J[00:00:26.500,152] [1;31m<err> coredump: #CD:00b60020000000000000000060b600200500000060b6002005000000399f0100[0m
[39D[J[00:00:26.510,833] [1;31m<err> coredum
[15:01:25.804]receive←◆p: #CD:f89700203898002060b60020e8970020e0c400200500000009a3010047a30100[0m
[39D[J[00:00:26.521,484] [1;31m<err> coredump: #CD:050000005cdf01001900000047b6002009a30100a9ac01000500000000000000[0m
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[39D[J[00:00:26.596
[15:01:25.882]receive←◆,069] [1;31m<err> coredump: #CD:08000000000000e82c8000205cdf0100bba9020021ad0100947b020002000000[0m
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[39D[J[00:00:26.745,300] [1;31m<err> coredump: #CD:02000000947b02000a00000025a601000da601000100000030c80020e9b50100[0m
[39D[J[00:00:26.755,950] [1;31m<err> coredump: #CD:e1b50100238d0100bba90200d4c70020e1b5010047b600200200000047b60020[0m
[39D[J[00:00:26.766,601] [1;31m<err> coredump: #CD:02000000399f0100f89700203d98002047b60020e8970020e8c7002002000000[0m
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[15:01:26.115]receive←◆0001000000[0m
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[39D[J[00:00:26.851,867] [1;31m<err> coredump: #CD:0000000000000000000000000000000000000000000000000000000000000000[0m
[39D[J[00:00:26.862,518] [1;31m<err> coredump: #CD:0000000000000000189800205cdf010028a200200000000011cf000065a40100[0m
[39D[J[00:00:26.873,168] [1;31m<err> coredump: #CD:080000000000000000000000cfd0000047b60020e897002028c9002003000000[0m
[39D[J[00:00:26.883,819] [1;31m<err> coredump: #CD:09a3010047a30100030000005cdf01000000000d0100000009a30100a9ac0100[0m
[39D[J[00:00:26.894,500] [1;31m<err> coredump: #CD:03000000e1b5010000000000000000000da60100947b0200947b02008cc90020[0m
[39D[J[00:00:26.905,151] [1;31m<err> coredump: #CD:bcc9002011cf000065a4010005a601005cdf01003baa0100947b020070c90020[0m
[39D[J[00:00:26.915,802] [1;31m<err> coredump: #CD:55db0000eddf010008000000000000e898a00020dd820100709e002000b60020[0m
[39D[J[00:00:26.926,452] [1;31m<err> coredump: #CD:ffffffff8d7c010000b60020309500205083002021d2010000b6002000000000[0m
[39D[J[00:00:26.937,133] [1;31m<err> coredump: #CD:0000000000ed00e000b6002000000000000000005cdf0100bca4002011cf0000[0m
[39D[J[00:00:26.947,784] [1;31m<err> coredump: #CD:11cf000065a40100080000000000000000000000dba301000100000000000000[0m
[39D[J[00:00:26.958,435] [1;31m<err> coredump: #CD:5cdf010000000000f1ca0000d9d6000018ca002035d600005cdf010001000000[0m
[39D[J[00:00:26.969,085] [1;31m<err> coredump: #CD:040000009faf000000000000aaaaaaaaaaaaaaaaaaaaaaaa3095002000000000[0m
[39D[J[00:00:26.979,705] [1;31m<err> coredump: #CD:END#[0m
[39D[J[00:00:26.985,198] [1;31m<err> os: Halting system[0m

Fullscreen text2.txt Download

[15:01:04.744]send→◇wifi_radio_ficr_prog otp_read_params
□
[15:01:04.760]receive←◆wifi_radio_ficr_prog otp_read_params

[15:01:04.788]receive←◆OTP Region is open for R/W

PRODTEST.FT.PROGVERSION = 0xff0200ff

PRODTEST.TRIM0 = 0x0099040c
PRODTEST.TRIM1 = 0x0099d408
PRODTEST.TRIM2 = 0x0099d808
PRODTEST.TRIM3 = 0x009f040c
PRODTEST.TRIM4 = 0x009fd408
PRODTEST.TRIM5 = 0x009fd808
PRODTEST.TRIM6 = 0xffffffff
PRODTEST.TRIM7 = 0xffffffff
PRODTEST.TRIM8 = 0xffffffff
PRODTEST.TRIM9 = 0xffffffff
PRODTEST.TRIM10 = 0xffffffff
PRODTEST.TRIM11 = 0xffffffff
PRODTEST.TRIM12 = 0xffffffff
PRODTEST.TRIM13 = 0xffffffff
PRODTEST.TRIM14 = 0xffffffff

INFO.PART = 0x00007002
INFO.VARIANT = 0x00423030

INFO.UUID0 = 0x8b738e42
INFO.UUID1 = 0x11ed7d78
INFO.UUID2 = 0xe48304cc
INFO.UUID3 = 0xb4158e5e

REGION.PROTECT0 = 0x50fa50fa
REGION.PROTECT1 = 0x50fa50fa
REGION.PROTECT2 = 0x50fa50fa
REGION.PROTECT3 = 0x50fa50fa

MAC0.ADDRESS0 = 0x0036cef4
MAC0.ADDRESS1 = 0x00009e13
MAC0.ADDRESS = f4:ce:36:00:13:9e

MAC1.ADDRESS0 = 0x0036cef4
MAC1.ADDRESS1 = 0x00009f13
MAC1.ADDRESS = f4:ce:36:00:13:9f

CALIB.XO = 0x2b
REGION_DEFAULTS = 0xfffffff1

uart:~$ 




[15:01:06.594]send→◇wifi_radio_ficr_prog otp_read_retrim_version
□
[15:01:06.610]receive←◆wifi_radio_ficr_prog otp_read_retrim_version

PRODRETEST.PROGVERSION = 0xffffffff

uart:~$ 


[15:01:08.378]send→◇wifi_radio_ficr_prog otp_read_retrim_params
□
[15:01:08.383]receive←◆wifi_radio_ficr_prog otp_read_retrim_params

PRODRETEST.TRIM0 = 0xffffffff
PRODRETEST.TRIM1 = 0xffffffff
PRODRETEST.TRIM2 = 0xffffffff
PRODRETEST.TRIM3 = 0xffffffff
PRODRETEST.TRIM4 = 0xffffffff
PRODRETEST.TRIM5 = 0xffffffff
PRODRETEST.TRIM6 = 0xffffffff
PRODRETEST.TRIM7 = 0xffffffff
PRODRETEST.TRIM8 = 0xffffffff
PRODRETEST.TRIM9 = 0xffffffff
PRODRETEST.TRIM10 = 0xffffffff
PRODRETEST.TRIM11 = 0xffffffff

[15:01:08.444]receive←◆[mPRODRETEST.TRIM12 = 0xffffffff
PRODRETEST.TRIM13 = 0xffffffff
PRODRETEST.TRIM14 = 0xffffffff

uart:~$ 

[JONATHAN LL]

Thanks Yan, will look in to this. 

[JONATHAN LL]

Update:

Thanks for the logs. From the OTP parameters, FT.PROGVERSION is 2 and it is not retrimmed. Can they test on a chip with FT.PROGVERSION is 5 (or higher) or PRODTEST.PROGVERSION is 5 (or higher). 

Can you also share where you got the EK's with FT.PROGVERSION is 2?

Regarding error log, we do not observe this problem when we execute this command. What is the codebase used here? Is it custom code or one of NCS releases?

Please get the details. If it is your own code then we need source code and ELF for debugging the problem.

Regards,
Jonathan

[zyan]

Hi Jonathan,

Sorry for the late reply.

I got this board from your Nordic Semiconductor office in China. As for the error log, I think it might be caused by the wrong firmware I choose. Here is the test log and the data I obtained.

Send:

wifi_radio_test get_temperature

wifi_radio_test init 104
wifi_radio_test tx_pkt_tput_mode 1
wifi_radio_test tx_pkt_mcs 7
wifi_radio_test tx 1

wifi_radio_test get_temperature

Receive:

[11:13:52.745]Receive ←◆[m

[1;32muart:~$ [m
[11:13:53.747]Send ←◆[8D[J[00:00:00.258,239] [0m<inf> wifi_nrf_bus: SPIM spi@a000: freq = 8 MHz[0m
[1;32muart:~$ [m[8D[J[00:00:00.258,270] [0m<inf> wifi_nrf_bus: SPIM spi@a000: latency = 0[0m
[1;32muart:~$ [m[8D[J*** Booting nRF Connect SDK v3.5.99-ncs1 ***
[1;32muart:~$ [m[8D[J[1;32muart:~$ [m
[11:13:57.094]Send→◇wifi_radio_test get_temperature
□
[11:13:57.094]Receive←◆wifi_radio_test get_temperature

[11:13:57.199]Receive←◆[1;32muart:~$ [m
[11:13:58.098]Receive←◆[8D[J[00:00:04.612,182] [0m<inf> wifi_nrf: The temperature is = 19 degree celsius[0m
[1;32muart:~$ [m[8D[J[1;32muart:~$ [m
[11:14:05.074]Send→◇wifi_radio_test init 104
□
[11:14:05.090]Receive←◆wifi_radio_test init 104

[11:14:05.348]Receive←◆[1;32muart:~$ [m
[11:14:08.561Send→◇wifi_radio_test tx_pkt_tput_mode 1
□
[11:14:08.561]Receive←◆wifi_radio_test tx_pkt_tput_mode 1
[1;32muart:~$ [m
[11:14:10.380]Send→◇wifi_radio_test tx_pkt_mcs 7
□
[11:14:10.396]Receive←◆wifi_radio_test tx_pkt_mcs 7
[1;32muart:~$ [m
[11:14:12.751]Send→◇wifi_radio_test tx 1
□
[11:14:12.773]Receive←◆wifi_radio_test tx 1
[1;32muart:~$ [m
[11:15:36.375]Send→◇wifi_radio_test get_temperature
□
[11:15:36.375]Receive←◆wifi_radio_test get_temperature

[11:15:36.475]Receive←◆[1;32muart:~$ [m
[11:15:37.386]Receive←◆[8D[J[00:01:43.899,383] [0m<inf> wifi_nrf: The temperature is = 27 degree celsius[0m
[1;32muart:~$ [m[8D[J[1;32muart:~$ [m
[11:15:48.392]Send→◇wifi_radio_ficr_prog otp_read_params
□
[11:15:48.408]Receive←◆wifi_radio_ficr_prog otp_read_params

[11:15:48.439]Receive←◆[1;32mOTP Region is open for R/W
[m[1;32m
[m[1;32mPRODTEST.FT.PROGVERSION = 0xff0200ff
[m[1;32m
[m[1;32mPRODTEST.TRIM0 = 0x0099040c
[m[1;32mPRODTEST.TRIM1 = 0x0099d408
[m[1;32mPRODTEST.TRIM2 = 0x0099d808
[m[1;32mPRODTEST.TRIM3 = 0x009f040c
[m[1;32mPRODTEST.TRIM4 = 0x009fd408
[m[1;32mPRODTEST.TRIM5 = 0x009fd808
[m[1;32mPRODTEST.TRIM6 = 0xffffffff
[m[1;32mPRODTEST.TRIM7 = 0xffffffff
[m[1;32mPRODTEST.TRIM8 = 0xffffffff
[m[1;32mPRODTEST.TRIM9 = 0xffffffff
[m[1;32mPRODTEST.TRIM10 = 0xffffffff
[m[1;32mPRODTEST.TRIM11 = 0xffffffff
[m[1;32mPRODTEST.TRIM12 = 0xffffffff
[m[1;32mPRODTEST.TRIM13 = 0xffffffff
[m[1;32mPRODTEST.TRIM14 = 0xffffffff
[m[1;32m
[m[1;32mINFO.PART = 0x00007002
[m[1;32mINFO.VARIANT = 0x00423030
[m[1;32m
[m[1;32mINFO.UUID0 = 0x8b738e42
[m[1;32mINFO.UUID1 = 0x11ed7d78
[m[1;32mINFO.UUID2 = 0xe48304cc
[m[1;32mINFO.UUID3 = 0xb4158e5e
[m[1;32m
[m[1;32mREGION.PROTECT0 = 0x50fa50fa
[m[1;32mREGION.PROTECT1 = 0x50fa50fa
[m[1;32mREGION.PROTECT2 = 0x50fa50fa
[m[1;32mREGION.PROTECT3 = 0x50fa50fa
[m[1;32m
[m[1;32mMAC0.ADDRESS0 = 0x0036cef4
[m[1;32mMAC0.ADDRESS1 = 0x00009e13
[m[1;32mMAC0.ADDRESS = f4:ce:36:00:13:9e
[m[1;32m
[m[1;32mMAC1.ADDRESS0 = 0x0036cef4
[m[1;32mMAC1.ADDRESS1 = 0x00009f13
[m[1;32mMAC1.ADDRESS = f4:ce:36:00:13:9f
[m[1;32m
[m[1;32mCALIB.XO = 0x2b
[m[1;32mREGION_DEFAULTS = 0xfffffff1
[m[1;32m
[m[1;32muart:~$ [m
[11:15:50.697]Send→◇wifi_radio_ficr_prog otp_read_retrim_version
□
[11:15:50.712]Receive←◆wifi_radio_ficr_prog otp_read_retrim_version
[1;32m
PRODRETEST.PROGVERSION = 0xffffffff
[m[1;32m
[m[1;32muart:~$ [m
[11:15:53.493]Send→◇wifi_radio_ficr_prog otp_read_retrim_params
□
[11:15:53.508]Receive←◆wifi_radio_ficr_prog otp_read_retrim_params
[1;32m
[m[1;32mPRODRETEST.TRIM0 = 0xffffffff
[m[1;32mPRODRETEST.TRIM1 = 0xffffffff
[m[1;32mPRODRETEST.TRIM2 = 0xffffffff
[m[1;32mPRODRETEST.TRIM3 = 0xffffffff
[m[1;32mPRODRETEST.TRIM4 = 0xffffffff
[m[1;32mPRODRETEST.TRIM5 = 0xffffffff
[m[1;32mPRODRETEST.TRIM6 = 0xffffffff
[m[1;32mPRODRETEST.TRIM7 = 0xffffffff
[m[1;32mPRODRETEST.TRIM8 = 0xffffffff
[m[1;32mPRODRETEST.TRIM9 = 0xffffffff
[m[1;32mPRODRETEST.TRIM10 = 0xffffffff
[m[1;32mPRODRETEST.TRIM11 = 0xffffffff
[m[1;32mPRODRETEST.TRIM12 = 0xffffffff
[m[1;32mPRODRETEST.TRIM13 = 0xffffffff
[m[1;32mPRODRETEST.TRIM14 = 0xffffffff
[m[1;32m
[m[1;32muart:~$ [m

[JONATHAN LL]

Thanks, 

On this version of board, we may not see expected output power across all channels.

So can you contact your sales contact and ask for a new board that that is trimmed and is FT_PROG_VERSION 4 or higher. 

Regards,
Jonathan