> Try to monitor this pin to see it changes status when other device
> transmit. Also you can double check if the other device is
> transmitting using a RTL-SDR device.
>
> BR,
>
> Alan
>
> On 3/3/22, Prelude wrote:
> When I use it, one device sends a command using 'sx127x -t'
7 |
| 收件人 | acas...@gmail.com |
| 抄送至 | dev@nuttx.apache.org |
| 主题 | Re: nuttx lora sx127x device use for help |
I tested the two devices with an oscilloscope and both have signals, but
there is no communication between the two devices.
One is always sending data, and the other is waiting to receive
demo/sx127x_demo.c，Is this OK?
回复的原邮件
| 发件人 | 王国柱 |
| 日期 | 2022年03月03日 12:17 |
| 收件人 | acas...@gmail.com |
| 抄送至 | dev@nuttx.apache.org |
| 主题 | Re: nuttx lora sx127x device use for help |
I tested the two devices with an oscilloscope and both have signals, but
there is no communication between t
I tested the two devices with an oscilloscope and both have signals, but there
is no communication between the two devices.
One is always sending data, and the other is waiting to receive data. Does the
communication between the two devices need to be networked first?
That's what it used to be
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 modul
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
You just need two devices a tx and a rx.
Look the sx127x demo app source code, you need to run the other as tx.
BR,
Alan
On Monday, February 28, 2022, 王国柱 wrote:
>
> sx127x has been executed successfully
> nsh> sx127x
> Start sx127x_demo
> LORA modulation
> Set frequency to 93000
> Set po
sx127x has been executed successfully
nsh> sx127x
Start sx127x_demo
LORA modulation
Set frequency to 93000
Set power to 14
Waiting for data
But keep waiting for data，There should be more than two devices for
communication here. How to set it up?
Then I use two same STM32 boards to test Lora sx127x, one for receiving and one
for sending. How should I set it, in nuttx code or menuconfig?
回复的原邮件
| 发件人 | MIGUEL ALEXANDRE WISINTAINER |
| 日期 | 2022年02月28日 21:55 |
| 收件人 | 经天纬地 |
| 抄送至 | |
| 主题 | Re: nuttx lora sx127x device use for
ig?
回复的原邮件
| 发件人 | MIGUEL ALEXANDRE WISINTAINER |
| 日期 | 2022年02月28日 21:55 |
| 收件人 | 经天纬地 |
| 抄送至 | |
| 主题 | Re: nuttx lora sx127x device use for help |
Well, I tested the receive with other module transmitting lora, but not running
NUTTX
Enviado do meu iPhone
Em 28 de fev. de 2022
e or menuconfig?
回复的原邮件
发件人 MIGUEL ALEXANDRE
WISINTAINER<mailto:tcpipc...@hotmail.com>
日期 2022年02月28日 21:55
收件人 经天纬地<mailto:wgz_z...@163.com>
抄送至
主题 Re: nuttx lora sx127x device use for help
Well, I tested the receive with other module transmitting lora, but not runn
复的原邮件
发件人 MIGUEL ALEXANDRE
WISINTAINER<mailto:tcpipc...@hotmail.com>
日期 2022年02月28日 21:55
收件人 经天纬地<mailto:wgz_z...@163.com>
抄送至
主题 Re: nuttx lora sx127x device use for help
Well, I tested the receive with other module transmitting lora, but not running
NUTTX
En
https://ttn-gateway-lora.blogspot.com/2022/01/wisol-lom204a02-mandando-e-recebendo.html?m=1
Enviado do meu iPhone
Em 26 de fev. de 2022, à(s) 20:40, 王国柱 escreveu:
The driver of Lora sx127x, the SPI peripheral we used was used in STM32, and
it was successfully registered as a character device,
The driver of Lora sx127x, the SPI peripheral we used was used in STM32, and it
was successfully registered as a character device, but it kept reporting an
error when it was opened.
1、The following is my configuration information:
2、The registered device name is /dev/sx127x
3、The error mess
14 matches
Mail list logo
