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StuartsProjects / SX12XX-LoRa

Library for SX12XX LoRa devices
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Problem sending and receiving data after reboot #74

Closed trlink closed 9 months ago

trlink commented 9 months ago

Hi all,

I have a problem with the library sending and receiving data after a reboot (can reproduce it with ESPs and T-Beams):

After first startup, the modem is sending an receiving as it should, when I update the ESP (or the ESP crashes), sending and receiving doesn't work. When this problem occurs, I can see, that the transmit() function will take much less time...

Does anybody have an Idea?

Kr

Christian

StuartsProjects commented 9 months ago

If the SX127X is left in some indetermiante state because of a crash in between operations, then the library has no possible way of detecting that the sketch has 'crashed' or that IO pin functions might have changed.

You need to find a way to detect the 'crash' and re-intialise the SX127X registers and IO pins to a known state, as if from power on or reset, sounds like an ESP32 specific issue.

trlink commented 9 months ago

Hi Stuart,

I already call resetDevice() after startup, how can I achieve a re-initialization?

StuartsProjects commented 9 months ago

Follow the initialisation process thats in the setup() function of the library examples.

The full detail of the initialisation process is in sketch '103_Lora_Transmitter_Detailed_Setup' and described in detail in the library Readme file.

trlink commented 9 months ago

Problem exist between keyboard and chair... Was my fault, my init was wrong, called setupLoRa() before other init functions to setup the modem... You can close this issue... Thanks for your help!