Comments (4)
Hi DaniKoller,
thanks for the report. Could you provide more details please?
- What do you mean by concurrently?
- Does the node receive the multicast successfully?
- Does the node send the frame successfully, before it stays in state MAC_TX_RUNNING?
Thanks in advance.
from loramac-node.
Hi,
- I use the IMST ExpLoRa-Studio and send ClassC unconfirmed messages (by Button) during the confirming (concentrator) and retransmission (slave) communication.
- Mostly all Nodes will receive the multicast, but sometimes not all (but that is ok i will send multicast 3 times in a short Interval 2..5s and in a long interval). When a node is in hanging state, the multicast is still working (indicating 1s before the other nodes).
- The Concentrator side show also the confirm was ok, but the node never make a ConfirmCallback.
This attachment is done by only 1 node :
best regards
Daniel
from loramac-node.
Hi Daniel,
first of all, thanks for the feedback and the log. I'm not familiar with the IMST ExpLoRa-Studio, but what I understood from the log is the following ( please correct me, if I'm wrong ):
- Node sends a frame
- Server answers with an Ack frame
- Sever sends multicast frames
I guess the issue occurs when the node receives frame number 407. I noticed that the timestamps of 406 and 407 are equal. So I assume, that the server sends 407 immediatly after frame 406.
I think this issue occurs, when the node receives frame 406 and frame 407 in sequence, without handling frame 406 in the event handler in between. In this case, frame 407 overwrites the internal state and the "Ack received" status of the previous frame status is lost.
However, to be 100% sure, it would be nice, if you could validate, if the following patch resolves the issue. Please add the function call
OnMacStateCheckTimerEvent( );
at the end of the function OnRadioRxDone. Please note, that this patch might not be the final solution to solve the issue - its for testing purposes only and might change in the next release.
from loramac-node.
Hi Daniel,
thanks a lot, it seems to work with the patch ..
INFO : I guess the ExpLoRaStudio TimeStamps are not the real sending time on the concentrator
kind regards
Daniel
from loramac-node.
Related Issues (20)
- How to get the frequency on OnRxData
- TX Timeout hardcoded HOT 1
- DL not received in Class C AS923-1 + Freq 923.600
- Pre-certification should always failed due to duty-cycle limitation HOT 2
- Stack writes to NVM while radio is transmitting
- TimerInit called multiple times on the same TimerEvent_t struct HOT 1
- Race condition in RtcGetCalendarValue on NucleoL476 board
- LORAMAC_TX_CONFIG tested, but never set.
- GpioMcuRemoveInterrupt sets GPIO pull-up/pull-down registers to random uninitialized memory
- Secure-Element Preprocessor definition ifndef wrapping HOT 1
- AES function rename due to multiple definitions linking error
- LmHandlerInit causing some current leakage till the first tx HOT 3
- The correct value of MinRxSymbols? HOT 1
- does any body port this project for stm32f103?
- Does the Firmware Management (Port 203) is supported by LoRaMac-Node ? HOT 2
- Errata 2.3 current implementation may impact TX configuration
- MacBook M1 chip complies fail! arm-none-eabi-gcc: error: unrecognized command-line option '-arch'; did you mean '-march='?
- Support for MSPM0 Microcontroller
- stm32系列的Unique Devices IDs register错误
- Radio.Sleep() may leave antenna switch powered HOT 1
Recommend Projects
-
React
A declarative, efficient, and flexible JavaScript library for building user interfaces.
-
Vue.js
🖖 Vue.js is a progressive, incrementally-adoptable JavaScript framework for building UI on the web.
-
Typescript
TypeScript is a superset of JavaScript that compiles to clean JavaScript output.
-
TensorFlow
An Open Source Machine Learning Framework for Everyone
-
Django
The Web framework for perfectionists with deadlines.
-
Laravel
A PHP framework for web artisans
-
D3
Bring data to life with SVG, Canvas and HTML. 📊📈🎉
-
Recommend Topics
-
javascript
JavaScript (JS) is a lightweight interpreted programming language with first-class functions.
-
web
Some thing interesting about web. New door for the world.
-
server
A server is a program made to process requests and deliver data to clients.
-
Machine learning
Machine learning is a way of modeling and interpreting data that allows a piece of software to respond intelligently.
-
Visualization
Some thing interesting about visualization, use data art
-
Game
Some thing interesting about game, make everyone happy.
Recommend Org
-
Facebook
We are working to build community through open source technology. NB: members must have two-factor auth.
-
Microsoft
Open source projects and samples from Microsoft.
-
Google
Google ❤️ Open Source for everyone.
-
Alibaba
Alibaba Open Source for everyone
-
D3
Data-Driven Documents codes.
-
Tencent
China tencent open source team.
from loramac-node.