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Posted to dev@nuttx.apache.org by 王国柱 <wg...@163.com> on 2022/03/01 01:43:17 UTC

Re: nuttx lora sx127x device use for help

Are you talking about here, with two devices, one set to APP_MODE_RX and the other set to APP_MODE_TX?


apps\examples\sx127x_demo\sx127x_demo.c


int main(int argc, FAR char *argv[])
{
#ifdef CONFIG_LPWAN_SX127X_RXSUPPORT
 struct sx127x_read_hdr_s data;
#endif
 struct sx127x_chanscan_ioc_s chanscan;
 struct args_s   *args;
 struct timespec tstart;
 struct timespec tnow;
 uint8_t buffer[TX_BUFFER_MAX];
 uint8_t opmode;
 uint8_t i;
 int ret;
 int fd;

 /* Initialize buffer with data */

 for (i = 0; i app_mode   = APP_MODE_RX;
 args->modulation = APP_MODULATION_LORA;
 args->frequency  = CONFIG_EXAMPLES_SX127X_RFFREQ;
 args->power      = CONFIG_EXAMPLES_SX127X_TXPOWER;
 args->interval   = CONFIG_EXAMPLES_SX127X_INTERVAL;
 args->time       = CONFIG_EXAMPLES_SX127X_TIME;
 args->datalen    = CONFIG_EXAMPLES_SX127X_TXDATA;
On 3/1/2022 00:00，MIGUEL ALEXANDRE WISINTAINER<tc...@hotmail.com> wrote：
Looks that there are two app examples, one sender and other receiver


Enviado do meu iPhone

Em 28 de fev. de 2022, à(s) 12:00, 经天纬地 <wg...@163.com> escreveu:


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<tc...@hotmail.com> |
| 日期 | 2022年02月28日 21:55 |
| 收件人 | 经天纬地<wg...@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


Enviado do meu iPhone

Em 28 de fev. de 2022, à(s) 09:28, 经天纬地 <wg...@163.com> escreveu:




sx127x has been executed successfully。The operation information is as follows:
nsh> sx127x
Start sx127x_demo
LORA modulation
Set frequency to 930000000
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?

Re: nuttx lora sx127x device use for help

Posted by MIGUEL ALEXANDRE WISINTAINER <tc...@hotmail.com>.
Sorry, two option in the same demo code

printf(" [-r/-t/-x/-s] select app mode (default=r)\n");
printf(" r - RX\n");
printf(" t - TX\n");

Enviado do meu iPhone

Em 28 de fev. de 2022, à(s) 22:43, 王国柱 <wg...@163.com> escreveu:


Are you talking about here, with two devices, one set to APP_MODE_RX and the other set to APP_MODE_TX?

apps\examples\sx127x_demo\sx127x_demo.c

int main(int argc, FAR char *argv[])
{
#ifdef CONFIG_LPWAN_SX127X_RXSUPPORT
 struct sx127x_read_hdr_s data;
#endif
 struct sx127x_chanscan_ioc_s chanscan;
 struct args_s   *args;
 struct timespec tstart;
 struct timespec tnow;
 uint8_t buffer[TX_BUFFER_MAX];
 uint8_t opmode;
 uint8_t i;
 int ret;
 int fd;

 /* Initialize buffer with data */

 for (i = 0; i app_mode   = APP_MODE_RX;
 args->modulation = APP_MODULATION_LORA;
 args->frequency  = CONFIG_EXAMPLES_SX127X_RFFREQ;
 args->power      = CONFIG_EXAMPLES_SX127X_TXPOWER;
 args->interval   = CONFIG_EXAMPLES_SX127X_INTERVAL;
 args->time       = CONFIG_EXAMPLES_SX127X_TIME;
 args->datalen    = CONFIG_EXAMPLES_SX127X_TXDATA;
On 3/1/2022 00:00，MIGUEL ALEXANDRE WISINTAINER<tc...@hotmail.com> wrote：
Looks that there are two app examples, one sender and other receiver

Enviado do meu iPhone

Em 28 de fev. de 2022, à(s) 12:00, 经天纬地 <wg...@163.com>> escreveu:

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<tc...@hotmail.com>
日期      2022年02月28日 21:55
收件人     经天纬地<wg...@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

Enviado do meu iPhone

Em 28 de fev. de 2022, à(s) 09:28, 经天纬地 <wg...@163.com>> escreveu:



sx127x has been executed successfully。The operation information is as follows:
nsh> sx127x
Start sx127x_demo
LORA modulation
Set frequency to 930000000<tel:930000000>
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?