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SX1262 can't wake up after set sleep

Semtech Transceivers SX126x family
#1

Hi, I am using Mbed OS 5 to drive with SX1262.
I found that the Lora module can’t wake up properly after set sleep with cold start.

To wake the module, the NSS pin is already set pull low for 100us and wait for ~4ms before send command. And you can see in the result the NSS pin stay low forever to wait for the Lora busy pin already. But the Lora busy pin stay in high status.

Is anybody know how to wake up the module after set sleep with cold start?

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#2

Hello @anson.fever - can you please share the duration of the glitch on NSS?

#3

Hi mantoine,

The duration of the glitch on NSS takes 121us.
After another 4.31ms, the NSS pull low for sending command.
As the Lora busy stay in logical high, the NSS pin stay in logical low and waiting for the Lora busy pin to change status.

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