Hello. I'm currently developing a software for nRF52832AA device. It needs to communicate with external device via UART. It resieves text message and takes some data from it. I used standart functions from libraries to obtain data from FIFO. So the question is, how can I put the resieve actions to the interrupt? so it won't affect main code? Inqluding main code. It resieves a parcel and then converts char data to float, then shows it via UART.
#include <stdbool.h>
#include <stdint.h>
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include "app_button.h"
#include "app_uart.h"
#include "app_error.h"
#include "nrf_delay.h"
#include "nrf.h"
#include "bsp.h"
//#define MAX_TEST_DATA_BYTES (15U) /**< max number of test bytes to be used for tx and rx. */
#define UART_TX_BUF_SIZE 32 /**< UART TX buffer size. */
#define UART_RX_BUF_SIZE 256 /**< UART RX buffer size. */
#define UART_HWFC APP_UART_FLOW_CONTROL_ENABLED
void uart_error_handle(app_uart_evt_t * p_event)
{
// if (p_event->evt_type == APP_UART_COMMUNICATION_ERROR)
// {
// APP_ERROR_HANDLER(p_event->data.error_communication);
// }
// else if (p_event->evt_type == APP_UART_FIFO_ERROR)
// {
// APP_ERROR_HANDLER(p_event->data.error_code);
// }
}
/** @brief Function for setting the @ref ERROR_PIN high, and then enter an infinite loop.
*/
static void show_error(void)
{
LEDS_ON(LEDS_MASK);//All LED on
while(true)
{
// Do nothing
}
}
int main(void)
{
LEDS_CONFIGURE(LEDS_MASK);
LEDS_OFF(LEDS_MASK);
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_ENABLED,
false,//parity control
UART_BAUDRATE_BAUDRATE_Baud115200
};
APP_UART_FIFO_INIT(&comm_params,
UART_RX_BUF_SIZE,
UART_TX_BUF_SIZE,
uart_error_handle,
APP_IRQ_PRIORITY_LOW,
err_code);
APP_ERROR_CHECK(err_code);
nrf_gpio_cfg_input( BUTTON_1, NRF_GPIO_PIN_PULLUP);
//-----------Buffer-------------------------------------
uint8_t cr[10] = {0};
uint8_t cr_all [28] = {0};
uint8_t cr_d [8] = {0};
uint8_t cr_e [8] = {0};
uint8_t cr_t [8] = {0};
uint8_t INFO[7] = {'?','D','A','T','D',0x0D,0x0A};//System message
float DIST = 000.000F; //Resieved distantion, meters
float ELEV_ANG = 000.000F;//Resieved angle, grad
float TILT_ANG = 000.000F;//Resieved tilt angle, grad
int D_cnt = 0;//Distance counter
int E_cnt = 0;//Elevation counter
int T_cnt = 0;//Tilt counter
//------------------------------------------------------
app_uart_put(INFO[0]);
app_uart_put(INFO[1]);
app_uart_put(INFO[2]);
app_uart_put(INFO[3]);
app_uart_put(INFO[4]);
app_uart_put(INFO[5]);
app_uart_put(INFO[6]);
while(true)
{
//MC REQUEST
/*if (nrf_gpio_pin_read(BUTTON_1)==0)
{
LEDS_ON(BSP_LED_3_MASK);
app_uart_put(INFO[0]);
app_uart_put(INFO[1]);
app_uart_put(INFO[2]);
app_uart_put(INFO[3]);
app_uart_put(INFO[4]);
app_uart_put(INFO[5]);
app_uart_put(INFO[6]);
while (nrf_gpio_pin_read(BUTTON_1)==0);
LEDS_OFF(BSP_LED_3_MASK);
}*/
//Waiting characters from PC (Big buffer for preload)
//-----------InfoByte-----------------------------------
while(app_uart_get(&cr[0]) != NRF_SUCCESS);//+
if (cr[0]=='+')
{
while(app_uart_get(&cr[1]) != NRF_SUCCESS);//D
while(app_uart_get(&cr[2]) != NRF_SUCCESS);//A
while(app_uart_get(&cr[3]) != NRF_SUCCESS);//T
while(app_uart_get(&cr[4]) != NRF_SUCCESS);//D
while(app_uart_get(&cr[5]) != NRF_SUCCESS);//0D
while(app_uart_get(&cr[6]) != NRF_SUCCESS);//0A
while(app_uart_get(&cr[7]) != NRF_SUCCESS);//0D
while(app_uart_get(&cr[8]) != NRF_SUCCESS);//0A
while(app_uart_get(&cr[9]) != NRF_SUCCESS);//space bar
LEDS_OFF(LEDS_MASK);
if ((cr[0] == '+') && (cr[1] == 'D') && (cr[2] == 'A') && (cr[3] == 'T') && (cr[4] == 'D') && (cr[5] == 0x0D) && (cr[6] == 0x0A)) //TRash out
{
//-----------DISTANTION---------------------------------
while(app_uart_get(&cr_all[0]) != NRF_SUCCESS);// +/-
while(app_uart_get(&cr_all[1]) != NRF_SUCCESS);// 100
while(app_uart_get(&cr_all[2]) != NRF_SUCCESS);// 10
while(app_uart_get(&cr_all[3]) != NRF_SUCCESS);// 1
while(app_uart_get(&cr_all[4]) != NRF_SUCCESS);// .
while(app_uart_get(&cr_all[5]) != NRF_SUCCESS);//0.1
while(app_uart_get(&cr_all[6]) != NRF_SUCCESS);//0.01
while(app_uart_get(&cr_all[7]) != NRF_SUCCESS);//0.001
//-----------ELEVATION_ANGLE---------------------------------
while(app_uart_get(&cr_all[8]) != NRF_SUCCESS);// +/-
while(app_uart_get(&cr_all[9]) != NRF_SUCCESS);// 100
while(app_uart_get(&cr_all[10]) != NRF_SUCCESS);// 10
while(app_uart_get(&cr_all[11]) != NRF_SUCCESS);// 1
while(app_uart_get(&cr_all[12]) != NRF_SUCCESS);// .
while(app_uart_get(&cr_all[13]) != NRF_SUCCESS);//0.1
while(app_uart_get(&cr_all[14]) != NRF_SUCCESS);//0.01
while(app_uart_get(&cr_all[15]) != NRF_SUCCESS);//0.001
//-----------TILT_ANGLE----------------------------
while(app_uart_get(&cr_all[16]) != NRF_SUCCESS);// +/-
while(app_uart_get(&cr_all[17]) != NRF_SUCCESS);// 100
while(app_uart_get(&cr_all[18]) != NRF_SUCCESS);// 10
while(app_uart_get(&cr_all[19]) != NRF_SUCCESS);// 1
while(app_uart_get(&cr_all[20]) != NRF_SUCCESS);// .
while(app_uart_get(&cr_all[21]) != NRF_SUCCESS);//0.1
while(app_uart_get(&cr_all[22]) != NRF_SUCCESS);//0.01
while(app_uart_get(&cr_all[23]) != NRF_SUCCESS);//0.001
//-----------SPACEBAR------------------------------------
while(app_uart_get(&cr_all[24]) != NRF_SUCCESS);//0x20
while(app_uart_get(&cr_all[25]) != NRF_SUCCESS);//0x20
while(app_uart_get(&cr_all[26]) != NRF_SUCCESS);//OD
while(app_uart_get(&cr_all[27]) != NRF_SUCCESS);//OA
//--------------TEST------------------------------------
//-----------DISTANTION---------------------------------
app_uart_put(cr_all[0]);// +/-
app_uart_put(cr_all[1]) ;// 100
app_uart_put(cr_all[2]) ;// 10
app_uart_put(cr_all[3]) ;// 1
app_uart_put(cr_all[4]) ;// .
app_uart_put(cr_all[5]) ;//0.1
app_uart_put(cr_all[6]) ;//0.01
app_uart_put(cr_all[7]) ;//0.001
//-----------ELEVATION_ANGLE---------------------------------
app_uart_put(cr_all[8]) ;// +/-
app_uart_put(cr_all[9]) ;// 100
app_uart_put(cr_all[10]) ;// 10
app_uart_put(cr_all[11]);// 1
app_uart_put(cr_all[12]) ;// .
app_uart_put(cr_all[13]) ;//0.1
app_uart_put(cr_all[14]) ;//0.01
app_uart_put(cr_all[15]) ;//0.001
//-----------TILT_ANGLE----------------------------
app_uart_put(cr_all[16]) ;// +/-
app_uart_put(cr_all[17]) ;// 100
app_uart_put(cr_all[18]) ;// 10
app_uart_put(cr_all[19]) ;// 1
app_uart_put(cr_all[20]) ;// .
app_uart_put(cr_all[21]) ;//0.1
app_uart_put(cr_all[22]) ;//0.01
app_uart_put(cr_all[23]) ;//0.001
//-----------SPACEBAR------------------------------------
app_uart_put(cr_all[24]) ;//0x20
app_uart_put(cr_all[25]) ;//0x20
app_uart_put(cr_all[26]) ;//OD
app_uart_put(cr_all[27]) ;//OA
//-----------TO CHAR------------------------------------
while (cr_all[D_cnt] != 0x20)//till not space
{D_cnt++;}
while (cr_all[D_cnt + 1 + E_cnt] != 0x20)//till not space
{E_cnt++;}
while (cr_all[D_cnt + 1 + E_cnt + 1 + T_cnt] != 0x0D)//till not space
{T_cnt++;}
for (int i = 0; i < (D_cnt + 1); i++)
{
cr_d[i]=cr_all[i];
}
for (int i = D_cnt + 1; i < D_cnt + 1 + E_cnt; i++)
{
cr_e[i-(D_cnt + 1)]=cr_all[i];
}
for (int i = D_cnt + E_cnt + 2; i < D_cnt + E_cnt + 2 + T_cnt; i++)
{
cr_t[i-(D_cnt + E_cnt + 2)]=cr_all[i];
}
//-----------Conversion to float----------------------------------
if (cr_d[0]== '-')
{
if (D_cnt == 8)
{DIST = (-1)*((cr_d[1]-0x30)*100000 + (cr_d[2]-0x30)*10000 + (cr_d[3]-0x30)*1000 + (cr_d[5]-0x30)*100 + (cr_d[6]-0x30)*10 + (cr_d[7]-0x30)*1);
DIST = DIST / 1000.000F;
}
if (D_cnt == 7 )
{DIST = (-1)*((cr_d[1]-0x30)*10000 + (cr_d[2]-0x30)*1000 + (cr_d[4]-0x30)*100 + (cr_d[5]-0x30)*10 + (cr_d[6]-0x30)*1);
DIST = DIST / 1000.000F;
}
if (D_cnt == 6)
{DIST = (-1)*((cr_d[1]-0x30)*1000 + (cr_d[3]-0x30)*100 + (cr_d[4]-0x30)*10 + (cr_d[5]-0x30)*1);
DIST = DIST / 1000.000F;
}
}
else
{
if (D_cnt == 7)
{DIST = ((cr_d[0]-0x30)*100000 + (cr_d[1]-0x30)*10000 + (cr_d[2]-0x30)*1000 + (cr_d[4]-0x30)*100 + (cr_d[5]-0x30)*10 + (cr_d[6]-0x30)*1);
DIST = DIST / 1000.000F;
}
if (D_cnt == 6)
{DIST = ((cr_d[0]-0x30)*10000 + (cr_d[1]-0x30)*1000 + (cr_d[3]-0x30)*100 + (cr_d[4]-0x30)*10 + (cr_d[5]-0x30)*1);
DIST = DIST / 1000.000F;
}
if (D_cnt == 5)
{DIST = ((cr_d[0]-0x30)*1000 + (cr_d[2]-0x30)*100 + (cr_d[3]-0x30)*10 + (cr_d[4]-0x30)*1);
DIST = DIST / 1000.000F;
}
}
if (cr_e[0]== '-')
{
if (E_cnt == 8)
{ELEV_ANG = (-1)*((cr_e[1]-0x30)*100000 + (cr_e[2]-0x30)*10000 + (cr_e[3]-0x30)*1000 + (cr_e[5]-0x30)*100 + (cr_e[6]-0x30)*10 + (cr_e[7]-0x30)*1);
ELEV_ANG = ELEV_ANG / 1000.000F;
}
if (E_cnt == 7)
{ELEV_ANG = (-1)*((cr_e[1]-0x30)*10000 + (cr_e[2]-0x30)*1000 + (cr_e[4]-0x30)*100 + (cr_e[5]-0x30)*10 + (cr_e[6]-0x30)*1);
ELEV_ANG = ELEV_ANG / 1000.000F;
}
if (E_cnt == 6)
{ELEV_ANG = (-1)*((cr_e[1]-0x30)*1000 + (cr_e[3]-0x30)*100 + (cr_e[4]-0x30)*10 + (cr_e[5]-0x30)*1);
ELEV_ANG = ELEV_ANG / 1000.000F;
}
}
else
{
if (E_cnt == 7)
{ELEV_ANG = ((cr_e[0]-0x30)*100000 + (cr_e[1]-0x30)*10000 + (cr_e[2]-0x30)*1000 + (cr_e[4]-0x30)*100 + (cr_e[5]-0x30)*10 + (cr_e[6]-0x30)*1);
ELEV_ANG = ELEV_ANG / 1000.000F;
}
if (E_cnt == 6)
{ELEV_ANG = ((cr_e[0]-0x30)*10000 + (cr_e[1]-0x30)*1000 + (cr_e[3]-0x30)*100 + (cr_e[4]-0x30)*10 + (cr_e[5]-0x30)*1);
ELEV_ANG = ELEV_ANG / 1000.000F;
}
if (E_cnt == 5)
{ELEV_ANG = ((cr_e[0]-0x30)*1000 + (cr_e[2]-0x30)*100 + (cr_e[3]-0x30)*10 + (cr_e[4]-0x30)*1);
ELEV_ANG = ELEV_ANG / 1000.000F; }
}
if (cr_t[0]== '-')
{
if (T_cnt == 8)
{TILT_ANG = (-1)*((cr_t[1]-0x30)*100000 + (cr_t[2]-0x30)*10000 + (cr_t[3]-0x30)*1000 + (cr_t[5]-0x30)*100 + (cr_t[6]-0x30)*10 + (cr_t[7]-0x30)*1);
TILT_ANG = TILT_ANG / 1000.000F;
}
if (T_cnt == 7)
{TILT_ANG = (-1)*((cr_t[1]-0x30)*10000 + (cr_t[2]-0x30)*1000 + (cr_t[4]-0x30)*100 + (cr_t[5]-0x30)*10 + (cr_t[6]-0x30)*1);
TILT_ANG = TILT_ANG / 1000.000F;
}
if (T_cnt == 6)
{TILT_ANG = (-1)*((cr_t[1]-0x30)*1000 + (cr_t[3]-0x30)*100 + (cr_t[4]-0x30)*10 + (cr_t[5]-0x30)*1);
TILT_ANG = TILT_ANG / 1000.000F;
}
}
else
{
if (T_cnt == 7)
{TILT_ANG = ((cr_t[0]-0x30)*100000 + (cr_t[1]-0x30)*10000 + (cr_t[2]-0x30)*1000 + (cr_t[4]-0x30)*100 + (cr_t[5]-0x30)*10 + (cr_t[6]-0x30)*1);
TILT_ANG = TILT_ANG / 1000.000F;
}
if (T_cnt == 6)
{TILT_ANG = ((cr_t[0]-0x30)*10000 + (cr_t[1]-0x30)*1000 + (cr_t[3]-0x30)*100 + (cr_t[4]-0x30)*10 + (cr_t[5]-0x30)*1);
TILT_ANG = TILT_ANG / 1000.000F;
}
if (T_cnt == 5)
{TILT_ANG = ((cr_t[0]-0x30)*1000 + (cr_t[2]-0x30)*100 + (cr_t[3]-0x30)*10 + (cr_t[4]-0x30)*1);
TILT_ANG = TILT_ANG / 1000.000F;
}
}
app_uart_put(INFO[0]);
app_uart_put(INFO[1]);
app_uart_put(INFO[2]);
app_uart_put(INFO[3]);
app_uart_put(INFO[4]);
app_uart_put(INFO[5]);
app_uart_put(INFO[6]);
}
else
{
for(int i=0; i<10;i++)
{
cr[i]=0;
}
for(int i=0;i<28; i++)
{
cr_all[i]=0;
}
}
char DIST_TX[8]={0};
if (DIST>0)
{
double INT = DIST;
DIST_TX[0]=' ';
DIST_TX[1]=INT/100+0x30;
INT = fmod(INT,100);
DIST_TX[2]=INT/10+0x30;
INT = fmod(INT,10);
DIST_TX[3]=INT/1+0x30;
INT = fmod(INT,1);
DIST_TX[4]='.';
INT = INT * 100;
DIST_TX[5]=INT/10+0x30;
INT = fmod(INT,10);
DIST_TX[6]=INT/1+0x30;
INT = fmod(INT,1);
DIST_TX[7] =INT/0.1+0x30;
}
else
{
double INT = DIST;
DIST_TX[0]='-';
DIST_TX[1]=INT/100-0x30;
INT = fmod(INT,100);
DIST_TX[2]=INT/10-0x30;
INT = fmod(INT,10);
DIST_TX[3]=INT/1-0x30;
INT = fmod(INT,1);
DIST_TX[4]='.';
INT = INT * 100;
DIST_TX[5]=INT/10-0x30;
INT = fmod(INT,10);
DIST_TX[6]=INT/1-0x30;
INT = fmod(INT,1);
DIST_TX[7] =INT/0.1-0x30;
}
//----------------ELEV_ANG------------------------------
char ELEV_ANG_TX[6]={0};
if (ELEV_ANG>0)
{
double INT = ELEV_ANG;
ELEV_ANG_TX[0]=' ';
ELEV_ANG_TX[1]=INT/1+0x30;
INT = fmod(INT,1);
ELEV_ANG_TX[2]='.';
INT = INT * 100;
ELEV_ANG_TX[3]=INT/10+0x30;
INT = fmod(INT,10);
ELEV_ANG_TX[4]=INT/1+0x30;
INT = fmod(INT,1);
ELEV_ANG_TX[5] =INT/0.1+0x30;
}
else
{
double INT = ELEV_ANG;
ELEV_ANG_TX[0]='-';
ELEV_ANG_TX[1]=INT/1-0x30;
INT = fmod(INT,1);
ELEV_ANG_TX[2]='.';
INT = INT * 100;
ELEV_ANG_TX[3]=INT/10-0x30;
INT = fmod(INT,10);
ELEV_ANG_TX[4]=INT/1-0x30;
INT = fmod(INT,1);
ELEV_ANG_TX[5] =INT/0.1-0x30;
}
//------------------------------------------------------
//----------------TILT ANG------------------------------
char TILT_ANG_TX[6]={0};
if (TILT_ANG>0)
{
double INT = TILT_ANG;
TILT_ANG_TX[0]=' ';
TILT_ANG_TX[1]=INT/1+0x30;
INT = fmod(INT,1);
TILT_ANG_TX[2]='.';
INT = INT * 100;
TILT_ANG_TX[3]=INT/10+0x30;
INT = fmod(INT,10);
TILT_ANG_TX[4]=INT/1+0x30;
INT = fmod(INT,1);
TILT_ANG_TX[5] =INT/0.1+0x30;
}
else
{
double INT = TILT_ANG;
TILT_ANG_TX[0]='-';
TILT_ANG_TX[1]=INT/1-0x30;
INT = fmod(INT,1);
TILT_ANG_TX[2]='.';
INT = INT * 100;
TILT_ANG_TX[3]=INT/10-0x30;
INT = fmod(INT,10);
TILT_ANG_TX[4]=INT/1-0x30;
INT = fmod(INT,1);
TILT_ANG_TX[5] =INT/0.1-0x30;
}
//------------------------------------------------------
//-----------Transmitting part of the UART--------------
if ((cr[0] == '+') && (cr[1] == 'D') && (cr[2] == 'A') && (cr[3] == 'T') && (cr[4] == 'D'))
{
//Message formation
LEDS_ON(LEDS_MASK);
//printf("LED ON!\r\n");
app_uart_put(INFO[0]);
app_uart_put(INFO[1]);
app_uart_put(INFO[2]);
app_uart_put(INFO[3]);
app_uart_put(INFO[4]);
app_uart_put(' ');
app_uart_put(DIST_TX[0]);
app_uart_put(DIST_TX[1]);
app_uart_put(DIST_TX[2]);
app_uart_put(DIST_TX[3]);
app_uart_put(DIST_TX[4]);
app_uart_put(DIST_TX[5]);
app_uart_put(DIST_TX[6]);
app_uart_put(DIST_TX[7]);
app_uart_put(' ');
app_uart_put(ELEV_ANG_TX[0]);
app_uart_put(ELEV_ANG_TX[1]);
app_uart_put(ELEV_ANG_TX[2]);
app_uart_put(ELEV_ANG_TX[3]);
app_uart_put(ELEV_ANG_TX[4]);
app_uart_put(ELEV_ANG_TX[5]);
app_uart_put(' ');
app_uart_put(TILT_ANG_TX[0]);
app_uart_put(TILT_ANG_TX[1]);
app_uart_put(TILT_ANG_TX[2]);
app_uart_put(TILT_ANG_TX[3]);
app_uart_put(TILT_ANG_TX[4]);
app_uart_put(TILT_ANG_TX[5]);
}
//Test of succ resieve
if (DIST == 12.456F)
{
LEDS_ON(BSP_LED_0_MASK);
}
if (ELEV_ANG == 2.333F)
{
LEDS_ON(BSP_LED_1_MASK);
}
if (TILT_ANG == -43.456F)
{
LEDS_ON(BSP_LED_2_MASK);
}
}
}
}
