Hi All
I am working on nrf52832 but not using the SDK. how ever I had created the uart functionality on my nrf but many times I got the communication error.
I had taken the references from the uart example provided in the sdk and using APP uart example I created this uart setup.
I am trying to communicate nrf with esp over uart.
But I am failed in sending and receiving data.
Can I get some help in that.
/*
* Copyright (c) 2017, CoolR Group Inc
* All Rights Reserved.
*
* File: uart.c
*
* Description: APIs for accessing SoC uart
*
* Author: VAIBHAV
*
*/
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <ctype.h>
#include <string.h>
#include <stdlib.h>
#include "uart.h"
#include "config.h"
#include "nrf_gpio.h"
#include "app_util_platform.h"
#include "coolerBoard.h"
#include "debug.h"
#include "nrf_delay.h"
#include "app_uart.h"
#include "esp.h"
#define UART_TX_BUF_SIZE 256 /**< UART TX buffer size. */
#define UART_RX_BUF_SIZE 256 /**< UART RX buffer size. */
#define UART_INST 0
//nrf_drv_uart_t uart_nrf = NRF_DRV_UART_INSTANCE(UART_INST);
/***********************************************************//**
* Initialization of the uart peripheral.
* @param uart_config_t uartConfig
* Configuration structure for initialising uart
* @return error code
**************************************************************/
void uart_event_handle(app_uart_evt_t * p_event)
{
static uint8_t data_array[40];
static uint8_t index = 0;
uint32_t err_code;
switch (p_event->evt_type)
{
case APP_UART_DATA_READY:
UNUSED_VARIABLE(app_uart_get(&data_array[index]));
index++;
if(data_array[index -1] == 0x0A && data_array[index -2] == 0x0D)
{
esp_parse_data(data_array,index);
index = 0;
}
break;
case APP_UART_COMMUNICATION_ERROR:
print(LL_PRINT,"COMMUNICATION ERROR\r\n");
break;
case APP_UART_FIFO_ERROR:
print(LL_PRINT,"FIFO ERROR\r\n");
break;
default:
break;
}
}
ret_code_t uartInit(uart_config_t uartConfig, nrf_uart_event_handler_t uart_event_handler)
{
/* ret_code_t ret = NRF_SUCCESS;
const nrf_drv_uart_config_t config =
{
.pseltxd = uartConfig.tx_pin,
.pselrxd = uartConfig.rx_pin,
.baudrate = (nrf_uart_baudrate_t)uartConfig.baudrate,
.interrupt_priority = uartConfig.intr_priotity,
.hwfc = uartConfig.hwfc,
.parity = uartConfig.parity,
.p_context = NULL,
};
ret = nrf_drv_uart_init( &uart_nrf, &config, uart_event_handler );
return ret; */
uint32_t err_code;
app_uart_comm_params_t const comm_params =
{
.rx_pin_no = uartConfig.rx_pin,
.tx_pin_no = uartConfig.tx_pin,
.flow_control = APP_UART_FLOW_CONTROL_DISABLED,
.use_parity = false,
.baud_rate = (nrf_uart_baudrate_t)uartConfig.baudrate,
};
APP_UART_FIFO_INIT(&comm_params,UART_RX_BUF_SIZE,UART_TX_BUF_SIZE,uart_event_handle,APP_IRQ_PRIORITY_HIGHEST,err_code);
return err_code;
}
ret_code_t uartUnInit()
{
ret_code_t ret = NRF_SUCCESS;
// nrf_drv_uart_uninit(&uart_nrf);
return ret;
}
/***********************************************************//**
* uart Receive
* @param p_data - Pointer to the data
* @param length - Number of bytes to Receive
*
* @return error code
**************************************************************/
ret_code_t uartReceive(uint8_t * p_data,uint8_t length)
{
ret_code_t ret = NRF_SUCCESS;
/* ret = nrf_drv_uart_rx(&uart_nrf, p_data, length);
if(ret != NRF_SUCCESS)
{
print(LL_ERROR,"UART RECEIVE ERROR\r\n");
}
else
{
} */
return ret;
}
/***********************************************************//**
* uart Transmit
* @param p_data - Pointer to the data
* @param length - Number of bytes to Send
*
* @return error code
**************************************************************/
ret_code_t uartTransmit(uint8_t const * const p_data,uint32_t length)
{
ret_code_t ret = NRF_SUCCESS;
uint8_t data[200];
if(p_data == NULL)
{
ret = NRF_ERROR_INVALID_PARAM;
return ret;
}
if(length != 0)
memcpy(&data[0], &p_data[0], length);
for (uint32_t i = 0; i < length;i++)
{
//print(LL_PRINT, "%X ", data[i]);
ret = app_uart_put(data[i]);
if(ret != NRF_SUCCESS)
{
print(LL_PRINT,"UART DATA SENDING FAILED\r\n");
}
}
return ret;
}
Please review and let me know the issue.
