I am trying to make the nRF24LE1 as a sensor node. So I want to configure it to work as a receiver/transmitter and simultaneously use the ADC and UART. But the moment I added code to set it as a receiver the ADC and UART stopped working. Here is my code. Please let me know what is wrong with the code
#include "nrf24le1.h" // I/O header file for NRF24LE1
#include "hal_clk.h" // library containing clock functions
#include <stdint.h> // standard integers library
#include "hal_nrf.h" // library containing wireless communication functions
#include <Nordic/reg24le1.h>
//#include <reg24le1.h>
#include "nrf24le1.h"
#include "hal_adc.h"
#include <intrins.h>
#include "hal_uart.h" // library containing serial communication functions
#include "hal_delay.h" // header file containing delay functions
#include <stdio.h>
#include <string.h>
#include <math.h>
#include <stdint.h> // standard integers library
#include "hal_nrf.h" // library containing wireless communication functions
#include <stdbool.h> // standard boolean library
// Global variables
uint8_t payload[3]; // payload to be received
int val = 0 ,val1 = 0;
void delay(unsigned int us)
{
while(us--)
{
_nop_();
}
}
// Repeated putchar to print a string
void putstring(char *s)
{
while(*s != 0)
hal_uart_putchar(*s++);
//hal_uart_putchar(val);
}
void tostring(char str[], int num)
{
int i, rem, len = 0, n;
n = num;
while (n != 0)
{
len++;
n /= 10;
}
for (i = 0; i < len; i++)
{
rem = num % 10;
num = num / 10;
str[len - (i + 1)] = rem + '0';
}
str[len] = '\0';
}
// main function
void main()
{
char str[10];int num=0, result=0;
uint8_t payload[1]; // payload to be transmitted
P0DIR = 0xf0; // set P03 as output and P04 as input;
// Initializes the UART
hal_uart_init(UART_BAUD_9K6);
// Enable global interrupts
EA = 1;
P1DIR = 0;
P10 = 0;
// Configure ADC
hal_adc_set_input_channel(HAL_ADC_INP_AIN6);
hal_adc_set_reference(HAL_ADC_REF_VDD);
hal_adc_set_input_mode(HAL_ADC_SINGLE);
hal_adc_set_conversion_mode(HAL_ADC_CONTINOUS);
hal_adc_set_sampling_rate(HAL_ADC_2KSPS);
hal_adc_set_resolution(HAL_ADC_RES_8BIT);
hal_adc_set_data_just(HAL_ADC_JUST_RIGHT);
#ifdef MCU_NRF24LE1
while(hal_clk_get_16m_source() != HAL_CLK_XOSC16M)
{
putstring("stuck here");
// Wait until 16 MHz crystal oscillator is running
}
#endif
#ifdef MCU_NRF24LU1P
// Enable radio SPI
RFCTL = 0x10;
#endif
// Set P0 as output
//P0DIR = 0;
// Enable the radio clock
RFCKEN = 1;
// Enable RF interrupt
RF = 1;
// Enable global interrupt
//EA = 1;
// Configure radio as primary receiver (PTX)
hal_nrf_set_operation_mode(HAL_NRF_PRX);
// Set payload width to 3 bytes
hal_nrf_set_rx_payload_width((int)HAL_NRF_PIPE0, 3);
// Power up radio
hal_nrf_set_power_mode(HAL_NRF_PWR_UP);
// Enable receiver
CE_HIGH();
// Enable MISC interrupts to enable ADC interrupt
MISC = 1;
// Enable global interrupts
//EA = 1;
// Start ADC conversion
hal_adc_start();
//infinite loop
while(1)
{
// Print "Hello Everyone"
putstring("\nADC value is ") ;
//delay_ms(1000); // delay of 1sec
tostring(str,val);
putstring(str);
delay_ms(100);
}
}
// ADC (MISC) interrupt
ADC_ISR()
{
val = hal_adc_read_LSB();
//P10 = 1;
/*delay(1000);
delay(val * 4);
P10 = 0;
delay(19000 - val * 4);*/
}
// Radio interrupt
NRF_ISR()
{
uint8_t irq_flags;
// Read and clear IRQ flags from radio
irq_flags = hal_nrf_get_clear_irq_flags();
// If data received
if((irq_flags & (1<<(uint8_t)HAL_NRF_RX_DR)) > 0)
{
// Read payload
while(!hal_nrf_rx_fifo_empty())
{
putstring("I am here 1\n");
hal_nrf_read_rx_payload(payload);
}
putstring("I am here 2\n");
// Write received payload[0] to port 0
val1 = payload[0];
}
putstring("I am here 3\n");
}
