- Membuat rangkaian sesuai dengan percobaan 7.
- Buat program untuk STM32 di software STM32 CUBE ID.
- Setelah program selesai di buat, inputkan kode tersebut kedalam STM32 dengan stlink.
- Simulasi, Push Button ditekan maka LED menyala
- Selesai.
Pada Tx
#include "main.h"
UART_HandleTypeDef huart1;
uint8_t buttonStates[4] = {'0', '0', '0', '0'};
uint8_t charToTransmit[5];
int main(void)
{
HAL_Init();
SystemClock_Config();
MX_GPIO_Init();
MX_USART1_UART_Init();
while (1)
{
buttonStates[0] = (HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_1) == GPIO_PIN_SET)
? '1' : '0';
buttonStates[1] = (HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_2) == GPIO_PIN_SET)
? '1' : '0';
buttonStates[2] = (HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_3) == GPIO_PIN_SET)
? '1' : '0';
buttonStates[3] = (HAL_GPIO_ReadPin(GPIOA, GPIO_PIN_4) == GPIO_PIN_SET)
? '1' : '0';
HAL_UART_Transmit(&huart1, buttonStates, 4, 100);
HAL_Delay(100);
}
}
void SystemClock_Config(void)
{
RCC_OscInitTypeDef
RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
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();
}
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();
}
}
static void MX_USART1_UART_Init(void)
{
huart1.Instance =
USART1;
huart1.Init.BaudRate = 9600;
huart1.Init.WordLength = UART_WORDLENGTH_8B;
huart1.Init.StopBits = UART_STOPBITS_1;
huart1.Init.Parity
= UART_PARITY_NONE;
huart1.Init.Mode =
UART_MODE_TX_RX;
huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart1.Init.OverSampling = UART_OVERSAMPLING_16;
if
(HAL_UART_Init(&huart1) != HAL_OK)
{
}
}
Error_Handler();
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
__HAL_RCC_GPIOA_CLK_ENABLE();
GPIO_InitStruct.Pin = GPIO_PIN_1 | GPIO_PIN_2 | GPIO_PIN_3 |
GPIO_PIN_4;
GPIO_InitStruct.Mode = GPIO_MODE_INPUT;
GPIO_InitStruct.Pull = GPIO_PULLUP;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
}
void Error_Handler(void)
{
__disable_irq();
while (1)
{
}
}
UART_HandleTypeDef huart1;
uint8_t receivedData[4];
#ifdef USE_FULL_ASSERT
void assert_failed(uint8_t *file, uint32_t line)
{
}
#endif
Pada Rx
#include "main.h"
UART_HandleTypeDef huart1;
uint8_t receivedData[4];
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_USART1_UART_Init(void);
int main(void)
{
HAL_Init();
SystemClock_Config();
MX_GPIO_Init();
MX_USART1_UART_Init();
while (1)
{
if(HAL_UART_Receive(&huart1, receivedData, 4, 100) == HAL_OK)
{
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_1, (receivedData[0] == '0') ?
GPIO_PIN_SET : GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_2, (receivedData[1] == '0') ?
GPIO_PIN_SET : GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_3, (receivedData[2] == '0') ?
GPIO_PIN_SET : GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_4, (receivedData[3] == '0') ?
GPIO_PIN_SET : GPIO_PIN_RESET);
HAL_UART_Transmit(&huart1, receivedData, 4, 100);
}
HAL_Delay(50);
}
}
void SystemClock_Config(void)
{
RCC_OscInitTypeDef
RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef
RCC_ClkInitStruct = {0};
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();
}
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();
}
}
static void MX_USART1_UART_Init(void)
{
huart1.Instance =
USART1;
huart1.Init.BaudRate
= 9600;
huart1.Init.WordLength = UART_WORDLENGTH_8B;
huart1.Init.StopBits
= UART_STOPBITS_1;
huart1.Init.Parity =
UART_PARITY_NONE;
huart1.Init.Mode =
UART_MODE_TX_RX;
huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
huart1.Init.OverSampling = UART_OVERSAMPLING_16;
if
(HAL_UART_Init(&huart1) != HAL_OK)
{
Error_Handler();
}
}
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef
GPIO_InitStruct = {0};
__HAL_RCC_GPIOA_CLK_ENABLE();
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3|GPIO_PIN_4,
GPIO_PIN_RESET);
GPIO_InitStruct.Pin
= GPIO_PIN_1|GPIO_PIN_2|GPIO_PIN_3|GPIO_PIN_4;
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);
}
void Error_Handler(void)
{
__disable_irq();
while (1)
{
}
}
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