LCD 16x2 biasanya digunakan untuk menampilkan data dari sensor, maupun menampilkan lainnya pada mikrokontroler. Beda library yang dipakai jika menggunakan STM32Cubemx dan tidak menggunakan. Untuk yang tidak menggunakan bisa klik disini . Pada kesempatan kali ini konfigurasi menggunakan STM32Cubemx.
Software yang perlu disiapkan :
- STM32Cubemx- Keil Uvision
Download Library disini
Hardware yang perlu disiapkan
- STM32F1038CT6 | bisa beli disini- ST - Link V2 | bisa beli disini
- LCD 16x2 | bisa beli disini
Wiring dari mikrokontroler ke LCD 16x2
STM32F1038CT6 | LCD 16x2B12 | RS
B13 | RW
B14 | En
A8 | D4
A9 | D5
A10 | D6
A11 | D7
Berikut adalah langkah-langkahnya:
1. Buat Project baru di STM32Cubemx
2. Cari dan pilih mikrokontroler yang digunakan STM32F103C8T6
3. Atur Sys dan RCC seperti gambar berikut:
4. Pilih pin yang akan dihubungkan dengan LCD, atur menjadi Output, seperti gambar berikut:
5. Masuk ke Tab Clock Configuration > ganti nilai HCLK menjadi 72 > enter > OK
6. Pada Tab Configuration > GPIO > Pilih Pin yang sudah diatur tadi > User Label, beri nama, seperti gambar berikut. Ulangi sampai semua pin diberi nama. Hal ini memudahkan dalam penyebutan di program. > OK
7. Generate atau klik lambang gerigi. kemudian beri nama dan atur folder penyimpanan, pada toolchain / IDE ganti menjadi MDK-ARM V5 > OK
8. Tunggu sampai selesai, klik open folder > folder MDK-ARM > copy dan paste file library yang sudah didownload, link ada diatas.
9. Buka file project keilnya
10. Buka file main.c . pada tab project > lcd > Application/user > main
11. Klik kanan pada Application/user > add existing spt gambar berikut:
12. Tambahkan file lcd.c kemudian ganti typenya menjadi .h, tambahkan file lcd.h, seperti gambar berikut. jika sudah close.
13. Masuk menu Flash > Configure Flash Tools > C/C++ > Pada include patchs, klik titik tiga seperti gambar berikut:
14. Klik new > klik titik tiga cari folder yang ada file library lcd tadi > OK
15. Tambahkan library lcd.h pada file main. seperti gambar berikut:
16. Init LCD seperti code berikut di atas code while(1);
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| Lcd_PortType ports[] = { | |
| d4_lcd_GPIO_Port, d5_lcd_GPIO_Port, d6_lcd_GPIO_Port, d7_lcd_GPIO_Port | |
| }; | |
| Lcd_PinType pins[] = { | |
| d4_lcd_Pin, d5_lcd_Pin, d6_lcd_Pin, d7_lcd_Pin | |
| }; | |
| Lcd_HandleTypeDef lcd = Lcd_create(ports, pins, RS_lcd_GPIO_Port, RS_lcd_Pin, EN_lcd_GPIO_Port, EN_lcd_Pin, LCD_4_BIT_MODE); | |
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| Lcd_PortType ports[] : Kumpulan port yang digunakan. harus urut dari pin yang nyambung ke LCD D4-D7. jangan dibalik-balik | |
| Lcd_PinType pins[] : Kumpulan pin yang digunakan. harus urut dari pin yang nyambung ke LCD D4-D7. jangan dibalik-balik | |
| Lcd_HandleTypeDef lcd : urutannya | |
| 1. PORT D4-D7 | |
| 2. PIN D4-D7 | |
| 3. PORT RS | |
| 4. PIN RS | |
| 5. PORT EN | |
| 6. PIN EN | |
| 7. Mode : pakai yang 4 bit | |
| *catatan ==> | |
| RW sambungkan ke pin terserah atau ke GND | |
| diatur sesuai pin yang digunakan |
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| Lcd_cursor(&lcd, 0,0); | |
| Lcd_string(&lcd, "Robotikid"); | |
| Lcd_cursor(&lcd, 0,0); | |
| Lcd_int(&lcd, 100); |
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| Lcd_cursor : Kursor awal tulisan di LCD | |
| Lcd_string : Menulis dalam bentuk string | |
| Lcd_int : Menulis dalam bentuk Integer |
18. Source Code lengkap
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| /** | |
| ****************************************************************************** | |
| * File Name : main.c | |
| * Description : 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) 2019 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 "stm32f1xx_hal.h" | |
| #include "lcd.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 */ | |
| 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(); | |
| Lcd_PortType ports[] = { | |
| d4_lcd_GPIO_Port, d5_lcd_GPIO_Port, d6_lcd_GPIO_Port, d7_lcd_GPIO_Port | |
| }; | |
| Lcd_PinType pins[] = { | |
| d4_lcd_Pin, d5_lcd_Pin, d6_lcd_Pin, d7_lcd_Pin | |
| }; | |
| Lcd_HandleTypeDef lcd = Lcd_create(ports, pins, RS_lcd_GPIO_Port, RS_lcd_Pin, EN_lcd_GPIO_Port, EN_lcd_Pin, LCD_4_BIT_MODE); | |
| /* USER CODE BEGIN 2 */ | |
| /* USER CODE END 2 */ | |
| /* Infinite loop */ | |
| /* USER CODE BEGIN WHILE */ | |
| while (1) | |
| { | |
| Lcd_cursor(&lcd, 0,0); | |
| Lcd_string(&lcd, "Robotikid"); | |
| Lcd_cursor(&lcd, 0,0); | |
| Lcd_int(&lcd, 100); | |
| /* USER CODE END WHILE */ | |
| /* USER CODE BEGIN 3 */ | |
| } | |
| /* USER CODE END 3 */ | |
| } | |
| /** System Clock Configuration | |
| */ | |
| void SystemClock_Config(void) | |
| { | |
| RCC_OscInitTypeDef RCC_OscInitStruct; | |
| RCC_ClkInitTypeDef RCC_ClkInitStruct; | |
| /**Initializes the CPU, AHB and APB busses clocks | |
| */ | |
| RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE; | |
| RCC_OscInitStruct.HSEState = RCC_HSE_ON; | |
| RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1; | |
| RCC_OscInitStruct.HSIState = RCC_HSI_ON; | |
| RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON; | |
| RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE; | |
| RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9; | |
| if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != 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_DIV2; | |
| RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1; | |
| if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != 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_GPIOD_CLK_ENABLE(); | |
| __HAL_RCC_GPIOB_CLK_ENABLE(); | |
| __HAL_RCC_GPIOA_CLK_ENABLE(); | |
| /*Configure GPIO pin Output Level */ | |
| HAL_GPIO_WritePin(GPIOB, RS_lcd_Pin|RW_lcd_Pin|EN_lcd_Pin, GPIO_PIN_RESET); | |
| /*Configure GPIO pin Output Level */ | |
| HAL_GPIO_WritePin(GPIOA, d4_lcd_Pin|d5_lcd_Pin|d6_lcd_Pin|d7_lcd_Pin, GPIO_PIN_RESET); | |
| /*Configure GPIO pins : RS_lcd_Pin RW_lcd_Pin EN_lcd_Pin */ | |
| GPIO_InitStruct.Pin = RS_lcd_Pin|RW_lcd_Pin|EN_lcd_Pin; | |
| GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP; | |
| GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW; | |
| HAL_GPIO_Init(GPIOB, &GPIO_InitStruct); | |
| /*Configure GPIO pins : d4_lcd_Pin d5_lcd_Pin d6_lcd_Pin d7_lcd_Pin */ | |
| GPIO_InitStruct.Pin = d4_lcd_Pin|d5_lcd_Pin|d6_lcd_Pin|d7_lcd_Pin; | |
| GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP; | |
| 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. | |
| * @param None | |
| * @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, | |
| ex: printf("Wrong parameters value: file %s on line %d\r\n", file, line) */ | |
| /* USER CODE END 6 */ | |
| } | |
| #endif | |
| /** | |
| * @} | |
| */ | |
| /** | |
| * @} | |
| */ | |
| /************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ |
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