/* USER CODE BEGIN Header */
/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
* @attention
*
* <h2><center>© Copyright (c) 2023 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"
void delay(uint16_t num){
for(uint16_t i=0;i<num;i++);
}
void lcdCommand(uint16_t cmd){
GPIOA->ODR=cmd;
//GPIOB->ODR&=~(1<<RS_Pin);
HAL_GPIO_WritePin(RS_GPIO_Port,RS_Pin,GPIO_PIN_RESET);
//GPIOB->ODR|=(1<<EN_Pin);
HAL_GPIO_WritePin(EN_GPIO_Port,EN_Pin,GPIO_PIN_SET);
//HAL_Delay(1);
delay(100);
//GPIOB->ODR&=~(1<<EN_Pin);
HAL_GPIO_WritePin(EN_GPIO_Port,EN_Pin,GPIO_PIN_RESET);
//HAL_Delay(10);
delay(10000);
}
void lcdData(uint8_t data){
GPIOA->ODR=data;
//GPIOB->ODR|=(1<<RS_Pin);
HAL_GPIO_WritePin(RS_GPIO_Port,RS_Pin,GPIO_PIN_SET);
//GPIOB->ODR|=(1<<EN_Pin);
HAL_GPIO_WritePin(EN_GPIO_Port,EN_Pin,GPIO_PIN_SET);
//HAL_Delay(1);
delay(10);
//GPIOB->ODR&=~(1<<EN_Pin);
HAL_GPIO_WritePin(EN_GPIO_Port,EN_Pin,GPIO_PIN_RESET);
//HAL_Delay(10);
delay(1000);
}
void lcdInit(void){
//GPIOB->ODR&=~(1<<RS_Pin);
HAL_GPIO_WritePin(EN_GPIO_Port,EN_Pin,GPIO_PIN_RESET);
//HAL_Delay(2);
delay(20000);
lcdCommand(0x38);
lcdCommand(0x0F);
lcdCommand(0x01);
//HAL_Delay(20);
delay(20000);
lcdCommand(0x06);
}
void lcdGotoXy(unsigned char x,unsigned char y){
unsigned char charAddr[]={0x80,0xC0,0x94,0xD4};
lcdCommand(charAddr[y-1]+x-1);
//HAL_Delay(1);
delay(1000);
}
void lcdPrint(char *str){
unsigned char i=0;
while(str[i]!=0){
lcdData(str[i]);
i++;
}
}
void lcdClear(void){
lcdCommand(0x01);
delay(100);
}
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
/**
* @brief The application entry point.
* @retval int
*/
int main(void)
{
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* Configure the system clock */
SystemClock_Config();
/* Initialize all configured peripherals */
MX_GPIO_Init();
lcdInit();
lcdGotoXy(3,1);
lcdPrint("STM32F103C8T6");
lcdGotoXy(1,2);
lcdPrint("Blue Pill Module");
for(uint8_t i=0;i<200;i++) delay(50000);
lcdClear();
lcdGotoXy(1,1);
lcdPrint("LCD Programming");
lcdGotoXy(3,2);
lcdPrint("STM32CubeIDE");
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/** Initializes the RCC Oscillators according to the specified parameters
* in the RCC_OscInitTypeDef structure.
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI;
RCC_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = RCC_HSICALIBRATION_DEFAULT;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != 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_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();
}
}
/**
* @brief GPIO Initialization Function
* @param None
* @retval None
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOC_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOC, RS_Pin|EN_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3
|GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7, GPIO_PIN_RESET);
/*Configure GPIO pins : RS_Pin EN_Pin */
GPIO_InitStruct.Pin = RS_Pin|EN_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
/*Configure GPIO pins : PA0 PA1 PA2 PA3
PA4 PA5 PA6 PA7 */
GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3
|GPIO_PIN_4|GPIO_PIN_5|GPIO_PIN_6|GPIO_PIN_7;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
}
/* 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 */
__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 */
/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
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