Error in LoRa Gateway: failed to start the concentrator

Gateways Raspberry Pi Gateways
1

Hi,

I am running a Semtech basic packet forwarder on RPI3 + RisingHF LoRa Gateway module.

After I reset the gateway, I run the packet forwarder and this error is displayed:

ERROR: [main] failed to start the concentrator

After I couple of consecutive tries of running the packet forwarder, it works.

What is the cause and solution of this issue?

Best regards

2

Checking the correct RPi pin assignment for the concentrator card is usually 1st stop - often 5, 17 or 25 depending on iMST or Rak based build - dont know which is correct for RisingHF module as haven’t used one myself - should be called out in the documentation - be sure not to mix physical pin with Broadcom logical pin - and may be juggled by any interposer card (again check docs) if not hard wired directly (not recommended due to interference pick up on flying leads ;-). Check setting in startup script. Also may make sense to limit/constrain SPI clock by setting @ 250 (GIYF) if not already done…good luck!

2 Likes
3

Search the forum. This is not a new issue and it has been answered multiple times.
(Or thank Jeff-UK for providing you a short cut to the answers)

1 Like
4

I really appreciate your respond

Regarding SPI clock, can you show me how to set to 250? I have doubts that it’s the problem.

Note: the gateway is working 100% after multiple tries of starting the packet forwarder.

Best regards.

5

I already searched, and did not get the answer that solve my issue.

I appreciate your help

6

GIYF “raspberry pi SPI 250”

or search this forum “SPI 250” - 1st hit (ref RPi3 & iMST concentrator tells much!)

If using mp pkt forwarder potentially also look to add the -s option if you see further problems :wink:

2 Likes
7

try adding “core_freq=250” to /boot/config.txt this will lock the SPI speed to 8MHz. Search for VPU in the discussion “rp3-x-ic880a-gateway-stopped-working”

1 Like
8

Thanks. The post you referenced helped to understand the issue.

9

I really appreciate your effort & reply

I modified core_freq=250 but nothing changed.
I will review it later.
My solution is to keep trying till packet forwarder works

Thanks to all of you!