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RFM95W on STM32G070

ttim.2
Associate

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 ?

2 REPLIES 2
ttim.2
Associate

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

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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