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ttim.2
Associate
Dec 1, 2022 9:13 AM UTC
Question

RFM95W on STM32G070

Hi,

I have a problem on the LoRa transmission.

If I use STM32F103 on SPI 1, LoRa transmission works.

And if I use the STM32G070 with the same code the LoRa transmission doesn't work.

What is the différence on the SPI in the STM32G070 ?

This topic has been closed for replies.

2 replies

ttim.2
ttim.2Author
Associate
Dec 4, 2022 4:27 PM UTC

I have use a spectrometer and the RFM95 transmit juste the carry frequency. I don't see the chirp of the lora transmission

0693W00000WKAPnQAP.png

Tesla DeLorean
Guru
Dec 4, 2022 7:44 PM UTC

Perhaps subtle differences in the CS fall and raise with respect to the data. Watch for things like the FIFO and data clearing the wire.

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