stm32_jk플립플롭
/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* Copyright (c) 2022 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* USER CODE END Header */
/* Includes ------------------------------------------------------------------*/
#include "main.h"
#include "rtc.h"
#include "gpio.h"
#include <string.h>
#include <stdio.h>
/* Private includes ----------------------------------------------------------*/
/* USER CODE BEGIN Includes */
/* USER CODE END Includes */
/* Private typedef -----------------------------------------------------------*/
/* USER CODE BEGIN PTD */
/* 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 ---------------------------------------------------------*/
/* USER CODE BEGIN PV */
/* USER CODE END PV */
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
/* USER CODE BEGIN PFP */
//new function
void GPIO_Moder();
int JKFF_Module(JKFF *_JKFF, int i);
int pulse_module(pulse_struct *ps, int select);
pulse_struct pulse[4];
JKFF jkff[4];
void counter_Synchronous_up(JKFF *_jkff, int pulse_status);
void counter_Synchronous_down(JKFF *_jkff, int pulse_status);
void counter_Asynchronous_up(JKFF *_jkff, int pulse_status);
void counter_Asynchronous_down(JKFF *_jkff, int pulse_status);
/* USER CODE END PFP */
/* Private user code ---------------------------------------------------------*/
/* USER CODE BEGIN 0 */
uint16_t inputC = 0;
uint16_t inputG = 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 */
pulse[0].trigger_state = 0;
pulse[0].trigger = 1;
pulse[0].pulse_output = 0;
pulse[0].delay = 500;
for(int i = 0; i < 4; i++){
memset(&jkff[i], 0, sizeof(struct _JKFF));
}
/* USER CODE END Init */
/* Configure the system clock */
SystemClock_Config();
/* USER CODE BEGIN SysInit */
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_RTC_Init();
//new function
GPIO_Moder();
/* USER CODE BEGIN 2 */
int pulse_select = 0;
int pulse_select_save = 0;
int pulse_status = 0; //High,Low
int mode = 0; // 0 -> Syn_up / 1 -> Syn_down / 2 -> Asyn_up / 3 -> Asyn_down
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1) {
inputC = GPIOC->IDR;
inputG = GPIOG->IDR;
pulse_select_save = pulse_select; // Use when pulse_select change.
pulse_select = 0; //pulse mode select
if(pulse_select_save != pulse_select){ // if select changed, initializing value to 0
memset(&pulse[pulse_select_save],0,sizeof(struct _pulse_struct));
}
pulse_status = pulse_module(pulse, pulse_select); //pulse_status. It depends on pulse_module status
for(int i = 0; i < 4; i++) { //***************if use EXIT, no use.
if(~inputG & 0x01 << i) {
mode = i;
}
}
if(mode == 0) {
counter_Asynchronous_up(jkff, pulse_status);
}
else if(mode == 1) {
counter_Synchronous_down(jkff, pulse_status);
}
// else if(~inputG == 0x04) {
// counter_Asynchronous_up(jkff, pulse_status);
// }
// else if(~inputG == 0x08) {
// counter_Asynchronous_up(jkff, pulse_status);
// }
//counter_Synchronous_up(jkff, pulse_status);
//counter_Synchronous_down(jkff, pulse_status);
/* USER CODE END WHILE */
/* 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 };
/** Configure the main internal regulator output voltage
*/
__HAL_RCC_PWR_CLK_ENABLE();
__HAL_PWR_VOLTAGESCALING_CONFIG(PWR_REGULATOR_VOLTAGE_SCALE1);
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI
| RCC_OSCILLATORTYPE_LSE;
RCC_OscInitStruct.LSEState = RCC_LSE_ON;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSI;
RCC_OscInitStruct.PLL.PLLM = 8;
RCC_OscInitStruct.PLL.PLLN = 180;
RCC_OscInitStruct.PLL.PLLP = RCC_PLLP_DIV2;
RCC_OscInitStruct.PLL.PLLQ = 4;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) {
Error_Handler();
}
/** Activate the Over-Drive mode
*/
if (HAL_PWREx_EnableOverDrive() != HAL_OK) {
Error_Handler();
}
/** Initializes the CPU, AHB and APB buses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK | RCC_CLOCKTYPE_SYSCLK
| RCC_CLOCKTYPE_PCLK1 | RCC_CLOCKTYPE_PCLK2;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV4;
RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV2;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_5) != HAL_OK) {
Error_Handler();
}
}
/* USER CODE BEGIN 4 */
void GPIO_Moder() {
GPIOD->MODER = 0x00000055; // GPIOD output mode PIND 0~7
}
int pulse_module(pulse_struct *ps, int select) {
if(ps[select].trigger == 0 && ps[select].trigger_state == 0) { // init upper_edge
ps[select].pulse_output = 0;
}
else if(ps[select].trigger == 1 && ps[select].trigger_state == 0) { // init down_edge
ps[select].pulse_output = 1;
}
else {
ps[select].pulse_output ^= 1; // next pulse will change after delay.
}
if(ps[select].trigger_state == 0) ps[select].trigger_state = 1; // after select edge, cannot change edge.
HAL_Delay(ps[select].delay);
return ps[select].pulse_output;
}
int JKFF_Module(JKFF *_JKFF, int i) { // for each JKFF struct
if (_JKFF[i].ck_save == 1 && _JKFF[i].ck == 0) { // when down_edge
if (_JKFF[i].j == 0) {
if (_JKFF[i].k == 0) { //j = 0, k = 0 -> stay
_JKFF[i].q = _JKFF[i].q;
} else { //j = 0, k = 1 -> 0
_JKFF[i].q = 0;
}
}
else {
if (_JKFF[i].k == 0) { //j = 1, k = 0 -> 1
_JKFF[i].q = 1;
} else { //j = 1, k = 1 -> toggle
_JKFF[i].q ^= 1;
}
}
} else { //not down _edge
_JKFF[i].q = _JKFF[i].q;
}
_JKFF[i].ck_save = _JKFF[i].ck;
return _JKFF[i].q;
}
void counter_Synchronous_up(JKFF *_JKFF, int pulse_status) {
int sum = 0;
int Q[4] ={0,};
_JKFF[0].ck = pulse_status;
for(int i = 0; i < 4; i++) {
_JKFF[i].j = 1;
_JKFF[i].k = 1;
Q[i] = JKFF_Module(_JKFF, i);
_JKFF[i+1].ck = Q[i];
sum += Q[i]<<i;
}
GPIOD -> ODR = sum;
}
void counter_Synchronous_down(JKFF *_jkff, int pulse_status) {
int sum = 0;
int Q[4] ={0,};
_jkff[0].ck = pulse_status;
for(int i = 0; i < 4; i++) {
_jkff[i].j = 1;
_jkff[i].k = 1;
Q[i] = JKFF_Module(_jkff, i);
_jkff[i+1].ck = !Q[i];
sum += Q[i]<<i;
}
GPIOD -> ODR = sum;
}
void counter_Asynchronous_up(JKFF *_jkff, int pulse_status) {
int sum = 0;
int Q[4] ={0,};
_jkff[0].j = 1;
_jkff[0].k = 1;
for (int i = 0; i < 4; i++) {
_jkff[i].ck = pulse_status;
Q[i] = JKFF_Module(_jkff, i);
}
_jkff[1].j = Q[0];
_jkff[1].k = Q[0];
if(Q[1] == 1 && Q[0] == 1){
_jkff[2].j = 1;
_jkff[2].k = 1;
} else {
_jkff[2].j = 0;
_jkff[2].k = 0;
}
if(Q[2] == 1 && Q[1] == 1 && Q[0] == 1) {
_jkff[3].j = 1;
_jkff[3].k = 1;
} else {
_jkff[3].j = 0;
_jkff[3].k = 0;
}
for (int i = 0; i < 4; i++) {
sum += Q[i]<<i;
}
GPIOD -> ODR = sum;
}
/* 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 */
__disable_irq();
while (1) {
}
/* 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,
ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */
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