Tutorial STM32, Cara Mengakses LCD 16x2 STMCube dan Keil uVision 5

Hello sahabat Anak Kendali.

pada kesempatan kali ini saya akan menulis artikel tentang Tutorial STM32, Cara Mengakses LCD 16x2 STMCube dan Keil uVision 5.

sebelumnya saya sudah banyak menulis artikel terkait dengan STM32, baik cara memprogram dengan Arduino IDE atau STMCube & Keil uVision.
jika kamu belum mengikuti dari awal silahkan terlebih dahulu membaca Artikel berikut, sehingga tutorial pada artikel ini mudah untuk di ikuti.

Rangkaian Design LCD 16x2 Board dan Skematik

Tutorial STM32, Cara Mengakses LCD 16x2 STMCube dan Keil uVision 5

Tutorial STM32, Cara Memulai Program dengan STM32Cube dan Keil uVision 5
Tutorial STM32, Cara Mengakses Button LED, STM32Cube dan Keil uVision 5

jika sudah berhasil mengikuti tutorial sebelumnya, mari kita lanjutkan untuk belajar Cara Mengakses LCD 16x2 dengan STM32, tentu saja kita bisa menggunakan LCD 20x4 dalam artikel ini, namun karena saya hanya punya LCD 16x2 maka percobaan nya menggunakan lcd yang sudah ada.

Download File Project LCD16x2 STM32 | DOWNLOAD

Pertama amati terlebih dahulu Pinout STM32 berikut ini :

diatas adalah Pinout STM32F446RE yang saya punya. jika kamu memliki board STM32 yang berbeda jangan panik, kamu hanya perlu cari gamba pinout nya di mbah google.

kita ketahui bahwa lcd memiliki pin RS RW E D4 D5 D6 D7 yang harus kita hubungkan ke mikrokontroler untuk bisa menghasilkan karakter, dalam tutorial kali ini saya menghubungkannya sebagai berikut :

RS — — — PA5
RW — — GND
EN — — — PA6
D4 — — — PA7
D5 — — — PB6
D6 — — — PC7
D7 — — — PA8

setelah menentukan pin mana yang akan kita gunakan selanjutnya buka STMCube dan atur konfigurasi board nya sesuai board stm32 kamu. disini saya menggunakan STM32F446RE Nucleo
atur konfigurasi pin nya sesuai yang telah kita tentukan tadi, set menjadi GPIO_OUTPUT.
cara nya : klik pada pin yang akan kita tentukan lalu pilih GPIO_OUTPUT.

supaya mudah di baca untuk kemudian hari jika menggunakan banyak device kita beri label pada pin pin yang sudah kita set. dengan cara : klik kanan pada pin yang akan kita beri label lalu pilih “Enter User Label”

hasil nya seperti gambar dibawah ini :

selanjutnya generate program seperti biasa, dan open projectnya sehingga terbuka program di Keil uVision 5.

selanjutnya download terlebih dahulu library LCD untuk STM32

Download Library LCD

Pass : www.anakkendali.com

File library nya silahkan di Extrack dulu, kemudian pindahkan di tempat kamu menyimpan project program saat generate dengan STMCube tadi. contohnya

setelah itu buka kembali Keil uVision 5 nya. dan tambahkan ketiga file library tadi. dengan cara klik kanan pada folder Aplication/User kemudian pilih Add Existing File to Group.

lihat pada gambar dibawah ini :

setelah itu buka file defines_hd44780.h kemudian atur programnya seperti berikut :

Program diatas menyamakan setingan Pin untuk LCD yang sudah kita setting sebelumnya di STMCube.

Selanjutnya buka file Main.c

dan buat lah program untuk menampilkan karakter pada LCD. kalo mau silahkan copy paste program di bawah ini, dan masukan ke File main.c

/**
******************************************************************************
* @file : main.c
* @brief : Main program body
******************************************************************************
** This notice applies to any and all portions of this file
* that are not between comment pairs USER CODE BEGIN and
* USER CODE END. Other portions of this file, whether
* inserted by the user or by software development tools
* are owned by their respective copyright owners.
*
* COPYRIGHT(c) 2018 STMicroelectronics
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. Neither the name of STMicroelectronics nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS “AS IS”
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
******************************************************************************
*/
/* Includes — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — */
#include “main.h”
#include “stm32f4xx_hal.h”
#include “tm_stm32_hd44780.h”
/* USER CODE BEGIN Includes */
/* USER CODE END Includes */
/* Private variables — — — — — — — — — — — — — — — — — — — — — — — — — — — — -*/
/* USER CODE BEGIN PV */
/* Private variables — — — — — — — — — — — — — — — — — — — — — — — — — — — — -*/
/* USER CODE END PV */
/* Private function prototypes — — — — — — — — — — — — — — — — — — — — — — — -*/
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
/* USER CODE BEGIN PFP */
/* Private function prototypes — — — — — — — — — — — — — — — — — — — — — — — -*/
/* USER CODE END PFP */
/* USER CODE BEGIN 0 */
/* USER CODE END 0 */
/**
* @brief The application entry point.
*
* @retval None
*/
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_GPIO_Init();
/* USER CODE BEGIN 2 */
TM_HD44780_Init(16,2);
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
TM_HD44780_Clear(); /// menghaspus isi LCD
TM_HD44780_Puts(0,0, “anakkendali.com”); // x,y, karakter
HAL_Delay(1000);
}
/* USER CODE END 3 */
}
/**
* @brief System Clock Configuration
* @retval None
*/
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct;
RCC_ClkInitTypeDef RCC_ClkInitStruct;
/**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_OscInitStruct.HSIState = RCC_HSI_ON;
RCC_OscInitStruct.HSICalibrationValue = 16;
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 = 2;
RCC_OscInitStruct.PLL.PLLR = 2;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
/**Activate the Over-Drive mode
*/
if (HAL_PWREx_EnableOverDrive() != HAL_OK)
{
_Error_Handler(__FILE__, __LINE__);
}
/**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_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(__FILE__, __LINE__);
}
/**Configure the Systick interrupt time
*/
HAL_SYSTICK_Config(HAL_RCC_GetHCLKFreq()/1000);
/**Configure the Systick
*/
HAL_SYSTICK_CLKSourceConfig(SYSTICK_CLKSOURCE_HCLK);
/* SysTick_IRQn interrupt configuration */
HAL_NVIC_SetPriority(SysTick_IRQn, 0, 0);
}
/** Configure pins as
* Analog
* Input
* Output
* EVENT_OUT
* EXTI
*/
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct;
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOC_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOA, rs_Pin|en_Pin|d4_Pin|d7_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(d6_GPIO_Port, d6_Pin, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(d5_GPIO_Port, d5_Pin, GPIO_PIN_RESET);
/*Configure GPIO pins : rs_Pin en_Pin d4_Pin d7_Pin */
GPIO_InitStruct.Pin = rs_Pin|en_Pin|d4_Pin|d7_Pin;
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);
/*Configure GPIO pin : d6_Pin */
GPIO_InitStruct.Pin = d6_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(d6_GPIO_Port, &GPIO_InitStruct);
/*Configure GPIO pin : d5_Pin */
GPIO_InitStruct.Pin = d5_Pin;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(d5_GPIO_Port, &GPIO_InitStruct);
}
/* USER CODE BEGIN 4 */
/* USER CODE END 4 */
/**
* @brief This function is executed in case of error occurrence.
* @param file: The file name as string.
* @param line: The line in file as a number.
* @retval None
*/
void _Error_Handler(char *file, int line)
{
/* USER CODE BEGIN Error_Handler_Debug */
/* User can add his own implementation to report the HAL error return state */
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,
tex: printf(“Wrong parameters value: file %s on line %drn”, file, line) */
/* USER CODE END 6 */
}
#endif /* USE_FULL_ASSERT */
/**
* @}
*/
/**
* @}
*/
/************************ © COPYRIGHT STMicroelectronics *****END OF FILE****/

jika sudah selesai silahkan BUILD programnya kemudian Upload/Load, dan jangan lupa untuk mengaktifkan RESET dan RUN pada Debug Flash Download (Lihat Tutorial Pertama)

mungkin cukup sekian tutorial kali ini, semoga bermanfaat, dan jangan lupa untuk berkomentar dibawah.

sumber : https://www.anakkendali.com

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