semtech_loramac_init blocking

[ge-lem]

Description

the function semtech_loramac_init is blocking, never return, in the example RIOT/examples/lorawan

RIOT/examples/lorawan/main.c

Line 165 in a687552

semtech_loramac_init(&loramac);

Working in version 2022.01

Steps to reproduce the issue

Run the example RIOT/examples/lorawan with a board with sx1276. You dont need to set APPKEY and DEVEUI to test.

The program is stuck at semtech_loramac_init

RIOT/examples/lorawan/main.c

Line 165 in a687552

semtech_loramac_init(&loramac);

Versions

Working in version 2022.01

[geonnave]

Hi, you could try enabling debug messages in the drivers to see what's going on.

For example, in pkg/semtech-loramac/contrib/semtech_loramac.c:

-#define ENABLE_DEBUG 0
+#define ENABLE_DEBUG 1

[aabadie]

Can you check if your problem is fixed by disabling the EEPROM usage ? (by trying PR #17969)

[fjmolinas]

Re-opening since there is no confirmation that this is actually fixed yet, it was auto-closed by the merged #17970

[maribu]

Let's say the absence of further complaints is confirming that #17970 indeed fixed the issue :)

[ant9000]

Sorry to break bad news, but I've stumbled on this problem right now on a SAMR34-XPRO board.

I'm testing examples/lorawan on master branch, with ENABLE_DEBUG=1 in the following files:

contrib/semtech_loramac.c
contrib/semtech_loramac_getset.c
contrib/semtech_loramac_radio.c

Here is an excerpt of what happens at board reset:

2023-01-21 16:57:43,706 # Connect to serial port /dev/ttyACM0
Welcome to pyterm!
Type '/exit' to exit.
2023-01-21 16:57:48,585 # [semtech-loramac] initializing loramac
2023-01-21 16:57:48,621 # [semtech-loramac] unexpected netdev event received: 8
2023-01-21 16:57:48,626 # [semtech-loramac] radio: initialization successful
2023-01-21 16:57:48,665 # [semtech-loramac] set dr 0
2023-01-21 16:57:48,668 # [semtech-loramac] set adr 0
2023-01-21 16:57:48,671 # [semtech-loramac] set public network 1
2023-01-21 16:57:48,674 # [semtech-loramac] set class 0
2023-01-21 16:57:48,679 # main(): This is RIOT! (Version: 2023.04-devel-162-g90c2d)
2023-01-21 16:57:48,683 # LoRaWAN Class A low-power application
2023-01-21 16:57:48,686 # =====================================
2023-01-21 16:57:48,689 # [semtech-loramac] set dr 5
2023-01-21 16:57:48,691 # Starting join procedure
2023-01-21 16:57:48,695 # [semtech-loramac] Starting join procedure: 0
2023-01-21 16:57:48,698 # [semtech-loramac] loramac cmd msg
2023-01-21 16:57:48,701 # [semtech-loramac] starting OTAA join
2023-01-21 16:57:48,703 # [semtech-loramac] get dr

No radio packet is emitted (at least, nothing arrives at my gateway), and the board is stuck.