Hi,
I want to use the functions app_uart_get() and app_uart_put() to communicate between the computer and NRF52840.
But when I type a string on the computer, the app_uart_get() function doesn't seem to receive it.
I'm using Segger Embedded Studio, the function app_uart_PUT() is the same. What should I do?
Thanks for your response, Karl.
I hid some of the code that wasn't important. It goes like this:
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include "acc_integration.h"
#include "acc_hal_definitions.h"
#include "acc_hal_integration.h"
#include "acc_rss.h"
#include "acc_service.h"
#include "acc_service_envelope.h"
#include "acc_version.h"
#include "sdk_config.h"
#include "nrf_delay.h"
#include "nrf_uart.h"
#include "app_error.h"
#include "nrf.h"
#include "bsp.h"
#include "nrf_uarte.h"
#include "nrf_gpio.h"
#include "nrf_drv_gpiote.h"
#include "app_uart.h"
#include "board_xm122.h"
#define APP_UART_ENABLED 1
#define APP_FIFO_ENABLED 1
#define APP_UART_DRIVER_INSTANCE 0
#define UART_TX_BUF_SIZE 256
#define UART_RX_BUF_SIZE 256
void uart_event_handler(app_uart_evt_t * p_event)
{
uint8_t c;
if(p_event->evt_type==APP_UART_COMMUNICATION_ERROR)
{
APP_ERROR_HANDLER(p_event->data.error_communication);
}
else if (p_event->data.error_code)
{
APP_ERROR_HANDLER(p_event->data.error_code);
}
else if (p_event->evt_type==APP_UART_DATA_READY)
{
app_uart_get(&c);
printf("the char received over uart is: %c\n",c);
}
else if (p_event->evt_type==APP_UART_TX_EMPTY)
{
printf("data is transmitted");
}
}
void uart_config(void)
{
uint32_t err_code;
const app_uart_comm_params_t comm_params =
{
RX_PIN_NUMBER,
TX_PIN_NUMBER,
RTS_PIN_NUMBER,
CTS_PIN_NUMBER,
APP_UART_FLOW_CONTROL_DISABLED,
false,
NRF_UARTE_BAUDRATE_115200
};
APP_UART_FIFO_INIT(&comm_params,UART_RX_BUF_SIZE,UART_TX_BUF_SIZE,uart_event_handler,APP_IRQ_PRIORITY_LOW,err_code);
APP_ERROR_CHECK(err_code);
}
int acconeer_main(int argc, char *argv[]);
int acconeer_main(int argc, char *argv[])
{
uart_config();
while(1)
{
}
}
When I downloaded the program into the chip, the computer's serial tool showed an error:
Then I tried to input some characters, such as "111", "1223", etc. in the serial port tool of the computer terminal, but it didn't work.
What should I do, please?
