MM32F103C8T6 with EC20 modules test code

 Using simple serial/UART communication using we can connect with MM32 mcu with EC20 gsm modules.

please find the code below

download

STM32F407VET6 RTC example code

 /* USER CODE BEGIN Header */

/**

  ******************************************************************************

  * @file           : main.c

  * @brief          : Main program body

  ******************************************************************************

  * @attention

  *

  * <h2><center>&copy; Copyright (c) 2020 STMicroelectronics.

  * All rights reserved.</center></h2>

  *

  * This software component is licensed by ST under BSD 3-Clause license,

  * the "License"; You may not use this file except in compliance with the

  * License. You may obtain a copy of the License at:

  *                        opensource.org/licenses/BSD-3-Clause

  *

  ******************************************************************************

  */

/* USER CODE END Header */

/* Includes ------------------------------------------------------------------*/

#include "main.h"

/* Private includes ----------------------------------------------------------*/

/* USER CODE BEGIN Includes */

/* USER CODE END Includes */

/* Private typedef -----------------------------------------------------------*/

/* USER CODE BEGIN PTD */

RTC_TimeTypeDef sTime = {0};

RTC_DateTypeDef sDate = {0};

RTC_AlarmTypeDef sAlarm = {0};

/* USER CODE END PTD */

/* Private define ------------------------------------------------------------*/

/* USER CODE BEGIN PD */

/* USER CODE END PD */

/* Private macro -------------------------------------------------------------*/

/* USER CODE BEGIN PM */

/* USER CODE END PM */

/* Private variables ---------------------------------------------------------*/

RTC_HandleTypeDef hrtc;

/* USER CODE BEGIN PV */

/* USER CODE END PV */

/* Private function prototypes -----------------------------------------------*/

void SystemClock_Config(void);

static void MX_RTC_Init(void);

/* USER CODE BEGIN PFP */

/* USER CODE END PFP */

/* Private user code ---------------------------------------------------------*/

/* USER CODE BEGIN 0 */

/* USER CODE END 0 */

/**

  * @brief  The application entry point.

  * @retval int

  */

int main(void)

{

  /* USER CODE BEGIN 1 */

  /* USER CODE END 1 */

  

  /* MCU Configuration--------------------------------------------------------*/

  /* Reset of all peripherals, Initializes the Flash interface and the Systick. */

  HAL_Init();

  /* USER CODE BEGIN Init */

  /* USER CODE END Init */

  /* Configure the system clock */

  SystemClock_Config();

  /* USER CODE BEGIN SysInit */

  /* USER CODE END SysInit */

  /* Initialize all configured peripherals */

  MX_RTC_Init();

  /* USER CODE BEGIN 2 */

sTime.Hours = 11;

  sTime.Minutes = 17;

  sTime.Seconds = 10;

HAL_RTC_SetTime(&hrtc, &sTime, RTC_FORMAT_BIN);

sDate.WeekDay = RTC_WEEKDAY_FRIDAY;

  sDate.Month = RTC_MONTH_SEPTEMBER;

  sDate.Date = 25;

  sDate.Year = 2020;

HAL_RTC_SetDate(&hrtc,&sDate,  RTC_FORMAT_BIN);

HAL_Delay(200);

  /* USER CODE END 2 */

  /* Infinite loop */

  /* USER CODE BEGIN WHILE */

  while (1)

  {

    /* USER CODE END WHILE */

HAL_RTC_GetTime(&hrtc, &sTime, RTC_FORMAT_BIN);

HAL_RTC_GetDate(&hrtc,&sDate,  RTC_FORMAT_BIN);

HAL_Delay(200);

    /* USER CODE BEGIN 3 */

  }

  /* USER CODE END 3 */

}

/**

  * @brief System Clock Configuration

  * @retval None

  */

void SystemClock_Config(void)

{

  RCC_OscInitTypeDef RCC_OscInitStruct = {0};

  RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};

  RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = {0};

  /** Configure the main internal regulator output voltage 

  */

  __HAL_RCC_PWR_CLK_ENABLE();

  __HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);

  /** Initializes the CPU, AHB and APB busses clocks 

  */

  RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI|RCC_OSCILLATORTYPE_LSI;

  RCC_OscInitStruct.HSIState = RCC_HSI_ON;

  RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;

  RCC_OscInitStruct.LSIState = RCC_LSI_ON;

  RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;

  if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)

  {

    Error_Handler();

  }

  /** Initializes the CPU, AHB and APB busses clocks 

  */

  RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK

                              |RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;

  RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI;

  RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;

  RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;

  RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;

  if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_0) != HAL_OK)

  {

    Error_Handler();

  }

  PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_RTC;

  PeriphClkInitStruct.RTCClockSelection = RCC_RTCCLKSOURCE_LSI;

  if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK)

  {

    Error_Handler();

  }

}

/**

  * @brief RTC Initialization Function

  * @param None

  * @retval None

  */

static void MX_RTC_Init(void)

{

  /* USER CODE BEGIN RTC_Init 0 */

  /* USER CODE END RTC_Init 0 */

  RTC_TimeTypeDef sTime = {0};

  RTC_DateTypeDef sDate = {0};

  RTC_AlarmTypeDef sAlarm = {0};

  /* USER CODE BEGIN RTC_Init 1 */

  /* USER CODE END RTC_Init 1 */

  /** Initialize RTC Only 

  */

  hrtc.Instance = RTC;

  hrtc.Init.HourFormat = RTC_HOURFORMAT_24;

  hrtc.Init.AsynchPrediv = 127;

  hrtc.Init.SynchPrediv = 255;

  hrtc.Init.OutPut = RTC_OUTPUT_DISABLE;

  hrtc.Init.OutPutPolarity = RTC_OUTPUT_POLARITY_HIGH;

  hrtc.Init.OutPutType = RTC_OUTPUT_TYPE_OPENDRAIN;

  if (HAL_RTC_Init(&hrtc) != HAL_OK)

  {

    Error_Handler();

  }

  /* USER CODE BEGIN Check_RTC_BKUP */

    

  /* USER CODE END Check_RTC_BKUP */

  /** Initialize RTC and set the Time and Date 

  */

  sTime.Hours = 10;

  sTime.Minutes = 35;

  sTime.Seconds = 10;

  sTime.DayLightSaving = RTC_DAYLIGHTSAVING_NONE;

  sTime.StoreOperation = RTC_STOREOPERATION_RESET;

  if (HAL_RTC_SetTime(&hrtc, &sTime, RTC_FORMAT_BIN) != HAL_OK)

  {

    Error_Handler();

  }

  sDate.WeekDay = RTC_WEEKDAY_FRIDAY;

  sDate.Month = RTC_MONTH_SEPTEMBER;

  sDate.Date = 25;

  sDate.Year = 2020;

  if (HAL_RTC_SetDate(&hrtc, &sDate, RTC_FORMAT_BIN) != HAL_OK)

  {

    Error_Handler();

  }

  /** Enable the Alarm A 

  */

  sAlarm.AlarmTime.Hours = 0;

  sAlarm.AlarmTime.Minutes = 0;

  sAlarm.AlarmTime.Seconds = 0;

  sAlarm.AlarmTime.SubSeconds = 0;

  sAlarm.AlarmTime.DayLightSaving = RTC_DAYLIGHTSAVING_NONE;

  sAlarm.AlarmTime.StoreOperation = RTC_STOREOPERATION_RESET;

  sAlarm.AlarmMask = RTC_ALARMMASK_NONE;

  sAlarm.AlarmSubSecondMask = RTC_ALARMSUBSECONDMASK_ALL;

  sAlarm.AlarmDateWeekDaySel = RTC_ALARMDATEWEEKDAYSEL_DATE;

  sAlarm.AlarmDateWeekDay = 1;

  sAlarm.Alarm = RTC_ALARM_A;

  if (HAL_RTC_SetAlarm_IT(&hrtc, &sAlarm, RTC_FORMAT_BIN) != HAL_OK)

  {

    Error_Handler();

  }

  /* USER CODE BEGIN RTC_Init 2 */

  /* USER CODE END RTC_Init 2 */

}

/* USER CODE BEGIN 4 */

/* USER CODE END 4 */

/**

  * @brief  This function is executed in case of error occurrence.

  * @retval None

  */

void Error_Handler(void)

{

  /* USER CODE BEGIN Error_Handler_Debug */

  /* User can add his own implementation to report the HAL error return state */

  /* USER CODE END Error_Handler_Debug */

}

#ifdef  USE_FULL_ASSERT

/**

  * @brief  Reports the name of the source file and the source line number

  *         where the assert_param error has occurred.

  * @param  file: pointer to the source file name

  * @param  line: assert_param error line source number

  * @retval None

  */

void assert_failed(uint8_t *file, uint32_t line)

{ 

  /* USER CODE BEGIN 6 */

  /* User can add his own implementation to report the file name and line number,

     tex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */

  /* USER CODE END 6 */

}

#endif /* USE_FULL_ASSERT */

/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/

https://drive.google.com/file/d/1s1pKxCdkc1oZJDfm-WhoNq1UeWmM2W1r/view?usp=sharing

to download file click above link

MM32 microcontroller with GSM and TCP/IP

 https://drive.google.com/file/d/14yXySxDJGcEgbD1S2hihYivG_d6Abnru/view?usp=sharing

please find the code in the above link

c program

 #include <stdio.h>

/* print Fahrenheit-Celsius table

for fahr = 0, 20, ..., 300 */

int main(void)

{

float fahr, celsius;

int lower, upper, step;

lower = 0;

upper = 300;

step = 20;

/* lower limit of temperature table *1

1* upper limit *1

1* step size */

fahr = lower;

while (fahr <= upper)

  {

celsius = 5.0/9.0 * (fahr-32.0) ;

printf("%3.0f \t %6.1f\n", fahr, celsius);

/*

   %d print as decimal integer

   %6d print as decimal integer, at least 6 characters wide print as floating point

   %6f print as floating point, at least 6 characters wide

   %.2f print as floating point, 2 characters after decimal point

                   %6.2f print as floating point, at least 6 wide and 2 after decimal point

*/

fahr = fahr + step;

}

}

MM32 MCU with relay ON/OFF code

 #include "sys.h"

#include "delay.h"

#include "uart.h"

#include "led.h"

int main(void)

{

    delay_init();    

    

    Relay_Init();

    while(1)             

    {

//relay connected on PB13

        Relay = !Relay;

        delay_ms(1000);

    }

}

led.h

#ifndef __LED_H

#define __LED_H

#include "sys.h"

//////////////////////////////////////////////////////////////////////////////////

//¿ª·¢°å

//LEDÇý¶¯´úÂë

//////////////////////////////////////////////////////////////////////////////////

//#define LED4 PAout(15) // PA15

//#define LED3 PBout(3) // PB3

//#define LED2 PBout(4) // PB4

#define Relay PBout(13) // PB13-relay is connected at that pin

void Relay_Init(void);//³õʼ»¯

#endif

led.c

void Relay_Init(void)

{

    GPIO_InitTypeDef  GPIO_InitStructure;

    RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB, ENABLE); //¿ªÆôGPIOA,GPIOBʱÖÓ

    RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);//¿ªÆô¸´ÓÃʱÖÓ£¬Õâ¸öÒ»¶¨Òª¿ª

    GPIO_PinRemapConfig(GPIO_Remap_SWJ_JTAGDisable, ENABLE);//ʧÄÜJTAG£¬Ê¹ÄÜSW

  /*  GPIO_InitStructure.GPIO_Pin  =  GPIO_Pin_15;

    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;

    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;

    GPIO_Init(GPIOA, &GPIO_InitStructure);

*/

    GPIO_InitStructure.GPIO_Pin  = GPIO_Pin_13 ;

    GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;

    GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;

    GPIO_Init(GPIOB, &GPIO_InitStructure);

    Relay = 1;

}

STM32F407VET6 bare metel led blink code

#include "stm32f4xx.h"

#include "stm32f4xx_gpio.h"

void Delay()

{

  

for(int i=0;i<500000;i++);

}

int main()

{

RCC->AHB1ENR |= RCC_AHB1ENR_GPIOAEN;

GPIOA -> MODER |= GPIO_MODER_MODER6_0;

// GPIOA -> MODER |= GPIO_MODER_MODER8_0;

while(1)

{

GPIOA -> ODR |= 0x00000040 ;//GPIO_ODR_6;

Delay();

GPIOA -> ODR &= ~0x00000040;

Delay();

}

}

stm32f407vet6 led toggle code working

/* USER CODE END WHILE */
//HAL_GPIO_TogglePin(GPIOA,GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7);
//HAL_GPIO_WritePin(GPIOA,GPIO_PIN_5,GPIO_PIN_RESET);
// HAL_GPIO_WritePin(GPIOA,GPIO_PIN_5,0);

HAL_Delay(1000);
//HAL_GPIO_WritePin(GPIOA,GPIO_PIN_5,GPIO_PIN_SET);
//HAL_GPIO_WritePin(GPIOA,GPIO_PIN_5,1);
HAL_GPIO_TogglePin(GPIOA,GPIO_PIN_4);
HAL_Delay(1000);
HAL_GPIO_TogglePin(GPIOA,GPIO_PIN_6);
HAL_Delay(1000);
HAL_GPIO_TogglePin(GPIOA,GPIO_PIN_7);

reverse the given array in c language

#include <stdio.h>

#include <stdlib.h>

int main()

{

    int num, *arr, i;

    scanf("%d", &num);

    arr = (int*) malloc(num * sizeof(int));

    for(i = 0; i < num; i++) {

        scanf("%d", arr + i);

    }

    /* Write the logic to reverse the array. */

    for(i = num-1; i>-1; i--)

        printf("%d ", *(arr + i));

    return 0;

}

output:

• 6

• 16 13 7 2 1 12 

• 12 1 2 7 13 16

how to print the range between two numbers in text format

int main() 

{

    int a, b;

    char *str[] = {"one", "two", "three", "four", "five", "six", "seven",  "eight",  "nine", "even", "odd"};

    scanf("%d\n%d", &a, &b);

    // Complete the code.

         

  for (int i=a; i<=b; i++) {

    if (i <= 9) 

         printf ("%s\n", str[i-1]);

    else 

        printf ("%s\n", str[9+(i%2)]);

  }

  return 0;

}

output:

input:

8

11

output:

eight

nine

even

odd

print a character and a string and sentence

#include <stdio.h>
#include <stdlib.h>


int main()
{
char a,a1[50],a2[100];
scanf("%c%*c",&a);
scanf("%s%*c",&a1);
scanf("%[^\n]",&a2);
printf("%c\n%s\n%s",a,a1,a2);
return 0;
}

output:
h
hello
how are you

h
hello
how are you

How to Find the Average of the marks of a student in C language

#include <stdio.h>
#include <stdlib.h>

  main()
  {  int m1,m2,m3,m4,m5,sum;
        float avg;
        printf("Enter Subject 1 Marks : ");
        scanf("%d",&m1);
        printf("Enter Subject 2 Marks : ");
        scanf("%d",&m2);
        printf("Enter Subject 3 Marks : ");
        scanf("%d",&m3);
        printf("Enter Subject 4 Marks : ");
        scanf("%d",&m4);
        printf("Enter Subject 5 Marks : ");
        scanf("%d",&m5);
        sum = m1+m2+m3+m4+m5;
        avg = sum/5;
        printf("THE AVERAGE IS  %f",avg);
       }

output:

Enter Subject 1 Marks : 95

Enter Subject 2 Marks : 98

Enter Subject 3 Marks : 93

Enter Subject 4 Marks : 96

Enter Subject 5 Marks : 92

THE AVERAGE IS  94.000000

Write a program to find area and circumference of a circle In C language

#include <stdio.h>
#include <stdlib.h>

void main()
{ float rad,area,circum;
printf("\n enter radius:    ");
scanf("%f",&rad);
printf("\n radius = %f",rad);
area = 22.0/7.0 * rad * rad;
circum = 2.0 * 22.0/7.0 * rad;
printf("\n area of a circle = %f", area);
printf("\n circumference of a circle = %f", circum);
getch();
}

output:

 enter radius:    10

 radius = 10.000000
 area of a circle = 314.285706
 circumference of a circle = 62.857143

how to program for reading the ASCII code of a character and vice versa in C language

#include <stdio.h>
#include <stdlib.h>


void main()
{
    char x;
 int n;

printf("\n enter a character");
scanf("%c",&x);
printf ("\n given character is  %c", x);
printf ("\n ASCII code is %d\n " , x);
printf("\n enter a ASCII code");
scanf("%d",&n);
printf ("\n ASCII code is  %d", n);
printf ("\n equivalent character is %c", n);
getch();
}

output:
 enter a charactera

 given character is  a
 ASCII code is 97

 enter a ASCII code65

 ASCII code is  65
 equivalent character is A

how to Program for reading integers, characters and strings from the keyboard and displaying them in C language

#include <stdio.h>
#include <stdlib.h>

void main()
{int i;
char c , a[20];
printf("\n enter a character");
scanf("%c",&c);
printf("\n enter an integer");
scanf("%d",&i);
printf("\n enter a string");
scanf("%s",a);
printf("\n given character = %c",c);
printf("\n given integer = %d",i);
printf("\n given string = %s",a);
getch();
}

output:
 enter a charactera

 enter an integer123

 enter a stringanildurgam

 given character = a
 given integer = 123
 given string = anildurgam

How to Addition, Subtraction, Multiplication, Division and Modulus operation on two integers in C language

#include <stdio.h>
#include <stdlib.h>

void main()
{ int a,b;
printf("\n enter two values: ");
scanf("%d %d",&a,&b);
printf("\n a + b = %d", a+b);
printf("\n a - b = %d", a-b);
printf("\n a * b = %d", a*b);
printf("\n a / b = %d", a/b);
printf("\n a modulus b = %d", a%b);
getch();
}

output:

 enter two values: 56
64

 a + b = 120
 a - b = -8
 a * b = 3584
 a / b = 0
 a modulus b = 56

How to Perform Addition, Subtraction, Multiplication, Division and Modulus operation on two integers.

#include<stdio.h>

void main()

{ int a,b;

printf("\n enter two values: ");

scanf("%d %d",&a,&b);

printf("\n a + b = %d", a+b);

printf("\n a - b = %d", a-b);

printf("\n a * b = %d", a*b);

printf("\n a / b = %d", a/b);

printf("\n a modulus b = %d", a%b);

getch();

}

input:

 enter two values: 13  5

output:

 a + b = 18           

 a - b = 8

 a * b = 65

 a / b = 2

 a modulus b = 3

Perform Addition, Subtraction, Multiplication, Division and Modulus operation on two integers.

#include<stdio.h>

void main()

{ int a,b;

printf("\n enter two values: ");

scanf("%d %d",&a,&b);

printf("\n a + b = %d", a+b);

printf("\n a - b = %d", a-b);

printf("\n a * b = %d", a*b);

printf("\n a / b = %d", a/b);

printf("\n a modulus b = %d", a%b);

getch();

}

input:

 enter two values: 13  5

output:

 a + b = 18           

 a - b = 8

 a * b = 65

 a / b = 2

 a modulus b = 3

"sizeof" function in c language

#include <stdio.h>
#include <stdlib.h>

int main()
{
   int a =0;
   char c="b";
   float d=1.10;
   long e=12345678;
   double f=1234567812345;
   long double g=123456789;
   printf("int==%d\nchar==%d\nfloat====%d",sizeof(a),sizeof(c),sizeof(d));
   printf("\nlong==%d",sizeof(e));
   printf("\ndouble==%d",sizeof(f));
   printf("\nlong double==%d",sizeof(g));
    return 0;
}

output:

int==4
char==1
float====4
long==4
double==8

long double==12

note :i am using code block ide ...so my values are like this ....if your using any other compiler then values will be changed as per the compiler

NUMBER SERIES BASIC TESTING

/**************************************************
** written by :ANIL DURGAM
** NUMBER SERIES TESTING VER 1.0
**DATE:29-08-2019
**************************************************/



#include <stdio.h>
#include <stdlib.h>

int main()
{
    int first_num,sec_num,third_num,fourth_num,next_number;
    int first_diff,second_diff,third_diff,fourth_diff;
    printf("please enter the FOUR number after every number hit ENTER\n");
    scanf("%d%d%d%d",&first_num,&sec_num,&third_num,&fourth_num);
    printf("first number=%d,\nsecond number=%d,\nthird number=%d,\nfourth number=%d\n",first_num,sec_num,third_num,fourth_num);
    first_diff=sec_num-first_num;
    second_diff=third_num-sec_num;
    third_diff=fourth_num-third_num;
    if(first_diff==second_diff)
    {
        if(third_diff==second_diff)
        {
            next_number=first_diff+fourth_num;
            printf("next number is ==%d\n",next_number);
        }
        else
        {
            printf("third and fourth number is not matching\n");
        }
    }
    else{

        printf("number not matching\n");
    }

    return 0;
}

OUTPUT:

please enter the FOUR number after every number hit ENTER

12

24

36

48

first number=12,

second number=24,

third number=36,

fourth number=48

next number is ==60

format type in c language

#include <stdio.h>
#include <stdlib.h>

int main()
{
    int a=789,b=1234;
    printf("a=%3d, b=%4d", a, b);
    return 0;
}

output:
a=789,b=1234

input is
a=9,b=4;
a=  9, b=   4