If you configure created the initialization file, like: boards/arm/stm32/stm32f4discovery/src/stm32_sx127x.c
And added the SPI chip to control your device, see CONFIG_LPWAN_SX127X at: see boards/arm/stm32/stm32f4discovery/src/stm32_spi.c Then the communication should work. Do you have a logic analyzer to see if there is communication over SPI line? BR, Alan On 3/2/22, Prelude <wgz_z...@163.com> wrote: > That's what it used to be, but I used two boards to execute sx127x -r on one > of the boards and sx127x -t on the other, expecting communication between > the two boards, but it didn't work as expected . Do you need any other > configuration? > the first board: > nsh> sx127x -t > Start sx127x_demo > LORA modulation > Set frequency to 930000000 > Set power to 14 > > Send 5 bytes > > the sencond boad: > nsh> sx127x -r > Start sx127x_demo > LORA modulation > Set frequency to 930000000 > Set power to 14 > Waiting for data > > > It looks like it's stuck, and the message sent is not received. > > > Is there something wrong with my configuration? Can you help me have a look? > I've been doing it for a long time and haven't done it yet. >
