void SystemClock_Config(void);
static void MX_GPIO_Init(void);
static void MX_USART2_UART_Init(void);
+static void MX_I2C1_Init(void);
/* USER CODE BEGIN PFP */
/* Private function prototypes -----------------------------------------------*/
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_USART2_UART_Init();
+ MX_I2C1_Init();
/* USER CODE BEGIN 2 */
run_test();
LL_SetSystemCoreClock(32000000);
+ LL_RCC_SetI2CClockSource(LL_RCC_I2C1_CLKSOURCE_HSI);
+
/* SysTick_IRQn interrupt configuration */
NVIC_SetPriority(SysTick_IRQn, 0);
}
+/* I2C1 init function */
+static void MX_I2C1_Init(void)
+{
+
+ LL_I2C_InitTypeDef I2C_InitStruct;
+
+ LL_GPIO_InitTypeDef GPIO_InitStruct;
+
+ /**I2C1 GPIO Configuration
+ PB6 ------> I2C1_SCL
+ PB7 ------> I2C1_SDA
+ */
+ GPIO_InitStruct.Pin = LL_GPIO_PIN_6;
+ GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
+ GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_HIGH;
+ GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_OPENDRAIN;
+ GPIO_InitStruct.Pull = LL_GPIO_PULL_UP;
+ GPIO_InitStruct.Alternate = LL_GPIO_AF_1;
+ LL_GPIO_Init(GPIOB, &GPIO_InitStruct);
+
+ GPIO_InitStruct.Pin = LL_GPIO_PIN_7;
+ GPIO_InitStruct.Mode = LL_GPIO_MODE_ALTERNATE;
+ GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_HIGH;
+ GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_OPENDRAIN;
+ GPIO_InitStruct.Pull = LL_GPIO_PULL_UP;
+ GPIO_InitStruct.Alternate = LL_GPIO_AF_1;
+ LL_GPIO_Init(GPIOB, &GPIO_InitStruct);
+
+ /* Peripheral clock enable */
+ LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_I2C1);
+
+ /**I2C Initialization
+ */
+ I2C_InitStruct.PeripheralMode = LL_I2C_MODE_I2C;
+ I2C_InitStruct.Timing = 0x2000090E;
+ I2C_InitStruct.AnalogFilter = LL_I2C_ANALOGFILTER_ENABLE;
+ I2C_InitStruct.DigitalFilter = 0;
+ I2C_InitStruct.OwnAddress1 = 0;
+ I2C_InitStruct.TypeAcknowledge = LL_I2C_ACK;
+ I2C_InitStruct.OwnAddrSize = LL_I2C_OWNADDRESS1_7BIT;
+ LL_I2C_Init(I2C1, &I2C_InitStruct);
+
+ LL_I2C_EnableAutoEndMode(I2C1);
+
+ LL_I2C_SetOwnAddress2(I2C1, 0, LL_I2C_OWNADDRESS2_NOMASK);
+
+ LL_I2C_DisableOwnAddress2(I2C1);
+
+ LL_I2C_DisableGeneralCall(I2C1);
+
+ LL_I2C_EnableClockStretching(I2C1);
+
+}
+
/* USART2 init function */
static void MX_USART2_UART_Init(void)
{
LL_AHB1_GRP1_EnableClock(LL_AHB1_GRP1_PERIPH_GPIOC);
LL_AHB1_GRP1_EnableClock(LL_AHB1_GRP1_PERIPH_GPIOF);
LL_AHB1_GRP1_EnableClock(LL_AHB1_GRP1_PERIPH_GPIOA);
+ LL_AHB1_GRP1_EnableClock(LL_AHB1_GRP1_PERIPH_GPIOB);
/**/
LL_GPIO_ResetOutputPin(LD2_GPIO_Port, LD2_Pin);