Serial LTE Modem app in NCS main - glitch on TX before INDICATE

[Michal Mühlpachr]

Hi, 

NCS main, nRF9160 DK

git log -n 1 --oneline
4f916da03 (HEAD -> main, origin/main, origin/HEAD) west.yml: rebase OSS trees

SLM prj.conf changes:

CONFIG_SLM_START_SLEEP=y

CONFIG_SLM_WAKEUP_PIN=6

CONFIG_SLM_INDICATE_PIN=2

CONFIG_NRF_MODEM_LIB_TRACE_ENABLED=y

There is unexpected glitch on TX just beforfe INDICATE is active:

Regards,

Michal

[Albrecht Markus Schellenberger]

Hello again Michal,

How was the indicate pin triggered in this particular case?

Regards,

Markus

[Michal Mühlpachr]

Hello again Markus,

INDICATE was triggerd by this test scenario:

.\nrf9160_tests.py test_attach
[PPK2] Found PPK2 at COM9
[PPK2] DUT Powered, Measurement started
0.15 <RESET> Tue May 24 12:59:57 2022
1.04 [PPK2] 100k/s AVG 4.12 mA Max 29.7 mA
2.06 [PPK2] 100k/s AVG 1.56 mA Max 24.7 mA
3.02 [PPK2] 100k/s AVG 0.012mA Max 0.711mA
4.03 [PPK2] 100k/s AVG 0.011mA Max 0.711mA
5.02 [PPK2] 100k/s AVG 0.010mA Max 0.711mA
6.06 [PPK2] 100k/s AVG 0.006mA Max 0.711mA
7.01 [PPK2] 100k/s AVG 0.009mA Max 0.711mA
7.08 <WAKEUP>
8.02 [PPK2] 100k/s AVG 0.930mA Max 18.9 mA
8.41 [RX] Ready
8.41 [TX] AT
8.42 [RX] OK
8.42 [TX] AT%XMODEMTRACE=1,2
8.42 [RX] OK
8.42 [TX] AT%MDMEV=1
8.43 [RX] OK
8.43 [TX] AT%HWVERSION
8.45 [RX] %HWVERSION: nRF9160 SICA BQA
8.45 [RX] OK
8.45 [TX] AT%SHORTSWVER
8.46 [RX] %SHORTSWVER: nrf9160_1.3.1
8.46 [RX] OK
8.46 [TX] AT#XSLMVER
8.46 [RX] #XSLMVER: "1.9.99"
8.48 [RX] OK
8.48 [TX] AT%XPOFWARN=1,30
8.49 [RX] OK
8.49 [TX] AT%XSYSTEMMODE=0,1,0,0
8.49 [RX] OK
8.49 [TX] AT%REL14FEAT=1,1,1,1,0
8.51 [RX] OK
8.51 [TX] AT+CNEC=24
8.52 [RX] OK
8.52 [TX] AT+CMEE=1
8.53 [RX] OK
8.53 [TX] AT+CEPPI=1
8.55 [RX] OK
8.55 [TX] AT%RAI=1
8.56 [RX] OK
8.56 [TX] AT%XDATAPRFL=0
8.56 [RX] OK
8.56 [TX] AT%XNETTIME=1
8.58 [RX] OK
8.58 [TX] AT%XSIM=1
8.59 [RX] OK
8.59 [TX] AT+CEREG=5
8.60 [RX] OK
8.60 [TX] AT+CGEREP=1
8.60 [RX] OK
8.60 [TX] AT+CSCON=1
8.61 [RX] OK
8.61 [TX] AT%XTIME=1
8.62 [RX] OK
8.62 [TX] AT+CPSMS=1,,,"00111000","00000000"
8.63 [RX] OK
8.63 [TX] AT%XMODEMSLEEP=1,0,10240
8.64 [RX] OK
8.64 [TX] AT#XSLEEP=2
8.65 [RX] %XMODEMSLEEP: 4
8.66 [RX] OK
9.02 [PPK2] 100k/s AVG 2.44 mA Max 20.7 mA
10.03 [PPK2] 100k/s AVG 0.013mA Max 4.32 mA
11.03 [PPK2] 100k/s AVG 0.007mA Max 0.711mA
12.04 [PPK2] 100k/s AVG 0.007mA Max 0.711mA
12.82 [PPK2] ====== SUM: INIT 0.003uA/h ======
13.60 <WAKEUP>
13.60 [RX] Ready
13.71 [TX] AT%XMODEMTRACE=1,2
13.72 [RX] OK
13.72 [TX] AT%XBANDLOCK=1,"0000000000000000000000000000000000000000000000000000000000001000000010000000100010011010"
13.75 [RX] OK
13.75 [TX] AT+COPS=1,2,"23003"
13.76 [RX] OK
13.76 [TX] AT+CGDCONT=1,"IP","hardwario.com"
13.77 [RX] OK
13.77 [TX] AT+CFUN=1
13.82 [RX] OK
13.83 [RX] %XMODEMSLEEP: 4,0
14.02 [PPK2] 100k/s AVG 3.79 mA Max 35.8 mA
14.73 [RX] %XSIM: 1
14.73 [TX] AT+CGSN
14.74 [RX] 352656106109476
14.74 [RX] OK
14.74 [TX] AT+CIMI
14.74 [RX] 901288000012723
14.74 [RX] OK
15.03 [PPK2] 100k/s AVG 27.5 mA Max 34.0 mA
16.02 [PPK2] 100k/s AVG 28.0 mA Max 55.0 mA
17.03 [PPK2] 100k/s AVG 32.8 mA Max 53.5 mA
18.01 [PPK2] 100k/s AVG 5.12 mA Max 40.9 mA
19.03 [PPK2] 100k/s AVG 0.722mA Max 15.9 mA
20.02 [PPK2] 100k/s AVG 0.722mA Max 16.2 mA
20.88 [RX] +CEREG: 2,"AE38","000AC51F",9
21.03 [PPK2] 100k/s AVG 4.16 mA Max 42.0 mA
21.58 [RX] +CSCON: 1
22.01 [PPK2] 100k/s AVG 16.2 mA Max 188mA
23.01 [PPK2] 100k/s AVG 29.5 mA Max 98.6 mA
24.01 [PPK2] 100k/s AVG 29.8 mA Max 40.6 mA
25.03 [PPK2] 100k/s AVG 29.8 mA Max 40.9 mA
26.01 [PPK2] 100k/s AVG 29.7 mA Max 41.5 mA
27.03 [PPK2] 100k/s AVG 29.1 mA Max 42.3 mA
28.02 [PPK2] 100k/s AVG 29.8 mA Max 41.2 mA
29.01 [PPK2] 100k/s AVG 29.8 mA Max 41.2 mA
30.03 [PPK2] 100k/s AVG 29.8 mA Max 41.0 mA
31.02 [PPK2] 100k/s AVG 29.8 mA Max 42.1 mA
31.82 [RX] +CGEV: ME PDN ACT 0,0
31.82 [RX] +CNEC_ESM: 50,0
31.82 [RX] %MDMEV: SEARCH STATUS 2
31.83 [RX] +CEREG: 5,"AE38","000AC51F",9,,,"00000000","00111000"
31.83 [TX] AT+COPS?
31.84 [RX] +COPS: 1,2,"23003",9
31.84 [RX] OK
31.84 [TX] AT%XCBAND
31.84 [RX] %XCBAND: 20
31.84 [RX] OK
31.84 [TX] AT+CEINFO?
31.86 [RX] +CEINFO: 0,1,C,8,1,-86,18
31.86 [RX] OK
31.86 [TX] AT+CGDCONT?
31.87 [RX] +CGDCONT: 0,"IP","hardwario.com","10.0.0.157",0,0
31.87 [RX] +CGDCONT: 1,"IP","hardwario.com","",0,0
31.87 [RX] OK
32.01 [PPK2] 100k/s AVG 28.7 mA Max 115mA
32.02 [RX] %XTIME: ,"22504211009280","01"
33.03 [PPK2] 100k/s AVG 29.8 mA Max 117mA
33.13 [TX] AT#XSLEEP=2
33.14 [RX] OK
34.01 [PPK2] 100k/s AVG 29.5 mA Max 40.5 mA
35.04 [PPK2] 100k/s AVG 29.4 mA Max 40.7 mA
36.04 [PPK2] 100k/s AVG 29.4 mA Max 41.0 mA
37.03 [PPK2] 100k/s AVG 28.7 mA Max 40.1 mA
38.05 [PPK2] 100k/s AVG 29.3 mA Max 40.4 mA
39.02 [PPK2] 100k/s AVG 29.4 mA Max 40.7 mA
40.05 [PPK2] 100k/s AVG 29.4 mA Max 39.9 mA
41.05 [PPK2] 100k/s AVG 29.3 mA Max 40.2 mA
42.02 [PPK2] 100k/s AVG 28.8 mA Max 39.7 mA
43.02 [PPK2] 100k/s AVG 29.2 mA Max 39.9 mA
44.05 [PPK2] 100k/s AVG 29.4 mA Max 40.0 mA
45.01 [PPK2] 100k/s AVG 29.4 mA Max 40.9 mA
46.02 [PPK2] 100k/s AVG 29.3 mA Max 39.5 mA
47.04 [PPK2] 100k/s AVG 28.9 mA Max 56.1 mA
48.03 [PPK2] 100k/s AVG 29.1 mA Max 39.9 mA
49.04 [PPK2] 100k/s AVG 29.5 mA Max 39.7 mA
50.03 [PPK2] 100k/s AVG 29.5 mA Max 40.0 mA
51.03 [PPK2] 100k/s AVG 29.5 mA Max 40.0 mA
52.02 [PPK2] 100k/s AVG 28.9 mA Max 39.6 mA
52.70 <INDICATE transition> -> High
52.78 <INDICATE transition> -> Low
53.02 [PPK2] 100k/s AVG 19.1 mA Max 113mA
54.02 [PPK2] 100k/s AVG 0.007mA Max 0.711mA
55.02 [PPK2] 100k/s AVG 0.007mA Max 0.711mA
56.03 [PPK2] 100k/s AVG 0.006mA Max 0.711mA
57.07 [PPK2] 100k/s AVG 0.009mA Max 0.711mA
58.02 [PPK2] 100k/s AVG 0.005mA Max 0.711mA
59.01 [PPK2] 100k/s AVG 0.008mA Max 0.711mA
59.05 <WAKEUP>
59.05 [RX] Ready
59.05 [RX] +CSCON: 0
59.05 [RX] %XMODEMSLEEP: 1,86399999
60.01 [PPK2] 100k/s AVG 0.633mA Max 17.7 mA
61.06 [PPK2] 100k/s AVG 0.671mA Max 16.7 mA
62.04 [PPK2] 100k/s AVG 0.672mA Max 17.1 mA
63.02 [PPK2] 100k/s AVG 0.672mA Max 16.3 mA
64.01 [PPK2] 100k/s AVG 0.671mA Max 17.1 mA
64.30 [TX] AT#XSLEEP=2
64.30 [RX] OK
65.04 [PPK2] 100k/s AVG 0.258mA Max 15.6 mA
66.02 [PPK2] 100k/s AVG 0.006mA Max 0.711mA
67.05 [PPK2] 100k/s AVG 0.006mA Max 0.711mA
68.02 [PPK2] 100k/s AVG 0.007mA Max 0.711mA
69.06 [PPK2] 100k/s AVG 0.006mA Max 0.711mA

Regards,
Michal