void SensorsTaskOSInit(void) { osSemaphoreDef(i2cTransactSem); i2cSem = osSemaphoreCreate(osSemaphore(i2cTransactSem), 1); ALBI2CHandle.Instance = ALB_I2C; ALBI2CHandle.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; ALBI2CHandle.Init.Timing = I2C_TIMING_100KHZ; ALBI2CHandle.Init.DualAddressMode = I2C_DUALADDRESS_DISABLED; ALBI2CHandle.Init.OwnAddress2Masks = I2C_OA2_NOMASK; ALBI2CHandle.Init.GeneralCallMode = I2C_GENERALCALL_DISABLED; ALBI2CHandle.Init.NoStretchMode = I2C_NOSTRETCH_DISABLED; ALBI2CHandle.Init.OwnAddress1 = 0x00; ALBI2CHandle.Init.OwnAddress2 = 0x00; assert_param(HAL_I2C_Init(&ALBI2CHandle) == HAL_OK); SLBI2CHandle.Instance = SLB_I2C; SLBI2CHandle.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; SLBI2CHandle.Init.Timing = I2C_TIMING_100KHZ; SLBI2CHandle.Init.DualAddressMode = I2C_DUALADDRESS_DISABLED; SLBI2CHandle.Init.OwnAddress2Masks = I2C_OA2_NOMASK; SLBI2CHandle.Init.GeneralCallMode = I2C_GENERALCALL_DISABLED; SLBI2CHandle.Init.NoStretchMode = I2C_NOSTRETCH_DISABLED; SLBI2CHandle.Init.OwnAddress1 = 0x00; SLBI2CHandle.Init.OwnAddress2 = 0x00; assert_param(HAL_I2C_Init(&SLBI2CHandle) == HAL_OK); }
/** * @brief I2C1 Initialization Function * @param None * @retval None */ static void MX_I2C1_Init(void) { /* USER CODE BEGIN I2C1_Init 0 */ /* USER CODE END I2C1_Init 0 */ /* USER CODE BEGIN I2C1_Init 1 */ /* USER CODE END I2C1_Init 1 */ hi2c1.Instance = I2C1; hi2c1.Init.ClockSpeed = 400000; hi2c1.Init.DutyCycle = I2C_DUTYCYCLE_2; hi2c1.Init.OwnAddress1 = 0; hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE; hi2c1.Init.OwnAddress2 = 0; hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE; hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE; if (HAL_I2C_Init(&hi2c1) != HAL_OK) { Error_Handler(); } /* USER CODE BEGIN I2C1_Init 2 */ /* USER CODE END I2C1_Init 2 */ }
/** * @brief Configures I2C interface * @param None * @retval HAL status */ static HAL_StatusTypeDef I2C_SHIELDS_Init(void) { HAL_StatusTypeDef ret_val = HAL_OK; if(HAL_I2C_GetState(&I2C_SHIELDS_Handle) == HAL_I2C_STATE_RESET) { /* I2C_SHIELDS peripheral configuration */ // I2C_SHIELDS_Handle.Init.ClockSpeed = NUCLEO_I2C_SHIELDS_SPEED; // I2C_SHIELDS_Handle.Init.DutyCycle = I2C_DUTYCYCLE_2; #ifdef STM32F401xE I2C_SHIELDS_Handle.Init.ClockSpeed = NUCLEO_I2C_SHIELDS_SPEED; I2C_SHIELDS_Handle.Init.DutyCycle = I2C_DUTYCYCLE_2; #endif #ifdef STM32L053xx I2C_SHIELDS_Handle.Init.Timing = 0x0070D8FF; /*Refer AN4235-Application note Document*/ #endif I2C_SHIELDS_Handle.Init.OwnAddress1 = 0x33; I2C_SHIELDS_Handle.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; I2C_SHIELDS_Handle.Instance = NUCLEO_I2C_SHIELDS; /* Init the I2C */ I2C_SHIELDS_MspInit(); ret_val = HAL_I2C_Init(&I2C_SHIELDS_Handle); } return ret_val; }
/* I2C2 init function */ void MX_I2C2_Init(void) { hi2c2.Instance = I2C2; hi2c2.Init.Timing = 0x20303E5D; hi2c2.Init.OwnAddress1 = 0; hi2c2.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; hi2c2.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE; hi2c2.Init.OwnAddress2 = 0; hi2c2.Init.OwnAddress2Masks = I2C_OA2_NOMASK; hi2c2.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE; hi2c2.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE; if (HAL_I2C_Init(&hi2c2) != HAL_OK) { Error_Handler(); } /**Configure Analogue filter */ if (HAL_I2CEx_ConfigAnalogFilter(&hi2c2, I2C_ANALOGFILTER_ENABLE) != HAL_OK) { Error_Handler(); } }
void VL6180x_Shield_I2C1_Init(I2C_HandleTypeDef *hi2c1) { GPIO_InitTypeDef GPIO_InitStruct; /* Peripheral clock enable */ __I2C1_CLK_ENABLE(); /**I2C1 GPIO Configuration PB8 ------> I2C1_SCL PB9 ------> I2C1_SDA */ GPIO_InitStruct.Pin = GPIO_PIN_8 | GPIO_PIN_9; GPIO_InitStruct.Mode = GPIO_MODE_AF_OD; GPIO_InitStruct.Pull = GPIO_NOPULL; GPIO_InitStruct.Speed = GPIO_SPEED_LOW; GPIO_InitStruct.Alternate = GPIO_AF4_I2C1; HAL_GPIO_Init(GPIOB, &GPIO_InitStruct); hi2c1->Instance = I2C1; hi2c1->Init.ClockSpeed = 400000; hi2c1->Init.DutyCycle = I2C_DUTYCYCLE_2; hi2c1->Init.OwnAddress1 = 0; hi2c1->Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; hi2c1->Init.DualAddressMode = I2C_DUALADDRESS_DISABLED; hi2c1->Init.OwnAddress2 = 0; hi2c1->Init.GeneralCallMode = I2C_GENERALCALL_DISABLED; hi2c1->Init.NoStretchMode = I2C_NOSTRETCH_DISABLED; HAL_I2C_Init(hi2c1); }
/* I2C3 init function */ void MX_I2C3_Init(void) { /* * The following is the required sequence in master mode. * * Program the peripheral input clock in I2C_CR2 Register in order to generate correct * timings * Configure the clock control registers * Configure the rise time register * Program the I2C_CR1 register to enable the peripheral * Set the START bit in the I2C_CR1 register to generate a Start condition */ hi2c3.Instance = I2C3; hi2c3.Init.ClockSpeed = 100000; hi2c3.Init.DutyCycle = I2C_DUTYCYCLE_2; hi2c3.Init.OwnAddress1 = 0; hi2c3.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; hi2c3.Init.DualAddressMode = I2C_DUALADDRESS_DISABLED; hi2c3.Init.OwnAddress2 = 0; hi2c3.Init.GeneralCallMode = I2C_GENERALCALL_DISABLED; hi2c3.Init.NoStretchMode = I2C_NOSTRETCH_DISABLED; HAL_I2C_Init(&hi2c3); }
int initMPU(void){ int initOkay = -1; HAL_I2C_StateTypeDef state; uint8_t tempByte = 13; uint8_t buffer[10] = {0,0,0,0,0,0,0,0,0,0}; hnd.Instance = I2C1; hnd.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; hnd.Init.ClockSpeed = 400000; hnd.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE; hnd.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE; hnd.Init.DutyCycle = I2C_DUTYCYCLE_2; hnd.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE; hnd.Init.OwnAddress1 = 0x00; HAL_I2C_Init(&hnd); __HAL_I2C_ENABLE(&hnd); state = HAL_I2C_GetState(&hnd); if(state == HAL_I2C_STATE_READY){ initOkay = 0; } buffer[0]=MPU6050_RA_PWR_MGMT_1; buffer[1]=0x80; printf("READ: %u",SCCB_Read(MPU6050_RA_WHO_AM_I)); printf("error: %u",HAL_I2C_GetError(&hnd)); return initOkay; }
CSensor::CSensor() : mMPU1(false, mHandle), mMPU2(true, mHandle) { mHandle.Instance = I2C1; __HAL_RCC_GPIOB_CLK_ENABLE(); __HAL_RCC_I2C1_CLK_ENABLE(); GPIO_InitTypeDef initPort; initPort.Pin = GPIO_PIN_6 | GPIO_PIN_7; initPort.Mode = GPIO_MODE_AF_OD; initPort.Pull = GPIO_PULLUP; initPort.Speed = GPIO_SPEED_FREQ_VERY_HIGH; initPort.Alternate = GPIO_AF4_I2C1; HAL_GPIO_Init(GPIOB, &initPort); mHandle.Init.ClockSpeed = 400000U; mHandle.Init.DutyCycle = I2C_DUTYCYCLE_2; mHandle.Init.OwnAddress2 = 0x00U; mHandle.Init.OwnAddress1 = 0x00U; mHandle.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; mHandle.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE; mHandle.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE; mHandle.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE; HAL_I2C_Init(&mHandle); if(false == (mMPU1.init() && mMPU2.init())) { //Error-Handler } mMPU1.writeRegister(MPU6050::CONFIG, static_cast<UInt8>(ELowPass::BANDWIDTH_44)); mMPU2.writeRegister(MPU6050::CONFIG, static_cast<UInt8>(ELowPass::BANDWIDTH_44)); }
/** * @brief Configures I2C interface * @retval HAL status */ static HAL_StatusTypeDef I2C_EXPBD_Init(void) { HAL_StatusTypeDef ret_val = HAL_OK; if(HAL_I2C_GetState(&I2C_EXPBD_Handle) == HAL_I2C_STATE_RESET) { /* I2C_EXPBD peripheral configuration */ #if ((defined (USE_STM32F4XX_NUCLEO)) || (defined (USE_STM32L1XX_NUCLEO))) I2C_EXPBD_Handle.Init.ClockSpeed = NUCLEO_I2C_EXPBD_SPEED; I2C_EXPBD_Handle.Init.DutyCycle = I2C_DUTYCYCLE_2; #endif #if (defined (USE_STM32L0XX_NUCLEO)) I2C_EXPBD_Handle.Init.Timing = NUCLEO_I2C_EXPBD_TIMING_400KHZ; /* 400KHz */ #endif I2C_EXPBD_Handle.Init.OwnAddress1 = 0x33; I2C_EXPBD_Handle.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; I2C_EXPBD_Handle.Instance = NUCLEO_I2C_EXPBD; /* Init the I2C */ I2C_EXPBD_MspInit(); ret_val = HAL_I2C_Init(&I2C_EXPBD_Handle); } return ret_val; }
void i2c_frequency(i2c_t *obj, int hz) { MBED_ASSERT((hz == 100000) || (hz == 400000) || (hz == 1000000)); I2cHandle.Instance = (I2C_TypeDef *)(obj->i2c); // Common settings: I2C clock = 32 MHz, Analog filter = ON, Digital filter coefficient = 0 switch (hz) { case 100000: I2cHandle.Init.Timing = 0x20602938; // Standard mode with Rise Time = 400ns and Fall Time = 100ns break; case 400000: I2cHandle.Init.Timing = 0x00B0122A; // Fast mode with Rise Time = 250ns and Fall Time = 100ns break; case 1000000: I2cHandle.Init.Timing = 0x0030040E; // Fast mode Plus with Rise Time = 60ns and Fall Time = 100ns break; default: break; } // I2C configuration I2cHandle.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; I2cHandle.Init.DualAddressMode = I2C_DUALADDRESS_DISABLED; I2cHandle.Init.GeneralCallMode = I2C_GENERALCALL_DISABLED; I2cHandle.Init.NoStretchMode = I2C_NOSTRETCH_DISABLED; I2cHandle.Init.OwnAddress1 = 0; I2cHandle.Init.OwnAddress2 = 0; I2cHandle.Init.OwnAddress2Masks = I2C_OA2_NOMASK; HAL_I2C_Init(&I2cHandle); }
/******************************************************************************* * @brief : Initialise et configure le peripherique I2C #2 * @param : Aucun. * @return : Rien. ******************************************************************************/ void LBF_I2C1_Init (uint32_t I2C1_Speed) { // Following settings assume I2C1 core clock (=APB1 clock in Default LimiFrog setting) // is 8MHz and target I2C1 speed is 100KHz // TODO Find a way to ensure I2C2 clock remains 8MHz if STM32L4 core clock modified #define I2C1_PRESC 0x1 // tPRESC = (PRESC+1) x tI2C2CLK -- 0.25us / 4MHz #define I2C1_SCLL 0x13 // tSCLL = (SCLL+1) x tPRESC -- 5us #define I2C1_SCLH 0x0F // tSCLH = (SCLH+1) x tPRESC -- 4us #define I2C1_SDADEL 0x2 // tSDADEL = SDADEL x tPRESC -- 0.5us #define I2C1_SCLDEL 0x4 // tSCLDEL = (SCLDEL+1) x tPRESC -- 1.25us // I2C speed: 400KHz, // defined by tSCL = tSCLL + tSCLH + tSYNC1 + tSYNC2 ~ 2.5us (400KHz) // where tSYNC1 and tSYNC2 are delays introduced by the analog and/or digital noise filters and resync mechasinsms -- refer to Ref Manual I2C section (I2C master mode) // SCLDEL defines setup time: SDA stable before SCL rising edge // SDADEL defines hold time: SDA stable after SCL *falling* edge (as per I2C spec?) hi2c1.Instance = I2C1; hi2c1.Init.Timing = ((uint32_t)I2C1_PRESC ) << 28 | ((uint32_t)I2C1_SCLDEL ) << 20 | ((uint32_t)I2C1_SDADEL ) << 16 | ((uint32_t)I2C1_SCLH ) << 8 | ((uint32_t)I2C1_SCLL ) ; //Contents of the I2C_TIMINGR_register value hi2c1.Init.OwnAddress1 = 0; hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLED; hi2c1.Init.OwnAddress2 = 0; hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLED; hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLED; HAL_I2C_Init(&hi2c1); }
/* I2C1 init function */ static void MX_I2C1_Init(void) { hi2c1.Instance = I2C1; hi2c1.Init.Timing = 0x2000090E; hi2c1.Init.OwnAddress1 = 0; hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE; hi2c1.Init.OwnAddress2 = 0; hi2c1.Init.OwnAddress2Masks = I2C_OA2_NOMASK; hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE; hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE; if (HAL_I2C_Init(&hi2c1) != HAL_OK) { _Error_Handler(__FILE__, __LINE__); } /**Configure Analogue filter */ if (HAL_I2CEx_ConfigAnalogFilter(&hi2c1, I2C_ANALOGFILTER_ENABLE) != HAL_OK) { _Error_Handler(__FILE__, __LINE__); } /**Configure Digital filter */ if (HAL_I2CEx_ConfigDigitalFilter(&hi2c1, 0) != HAL_OK) { _Error_Handler(__FILE__, __LINE__); } }
void i2c_hal_intialization() { /*------------------- Initialization I2C bus -------------------*/ /*---------- Setup GPIOB - I2C1 port --------------*/ __GPIOB_CLK_ENABLE(); // Enable clock source for GPIOB I2C1_GPIO_struct.Pin = I2C1_SDA|I2C1_SCL; I2C1_GPIO_struct.Mode = GPIO_MODE_AF_OD; I2C1_GPIO_struct.Pull = GPIO_PULLUP; I2C1_GPIO_struct.Speed = GPIO_SPEED_HIGH; I2C1_GPIO_struct.Alternate = GPIO_AF4_I2C1; HAL_GPIO_Init(GPIOB, & I2C1_GPIO_struct); /*------------------- Setup I2C1 -------------------*/ __I2C1_CLK_ENABLE(); // Enable clock source for I2C peripherals I2C1_struct.Instance = I2C1; I2C1_struct.Init.ClockSpeed = 400000; I2C1_struct.Init.DutyCycle = I2C_DUTYCYCLE_2; I2C1_struct.Init.OwnAddress1 = 0; I2C1_struct.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; I2C1_struct.Init.DualAddressMode = I2C_DUALADDRESS_DISABLED; I2C1_struct.Init.OwnAddress2 = 0; I2C1_struct.Init.GeneralCallMode = I2C_GENERALCALL_DISABLED; I2C1_struct.Init.NoStretchMode = I2C_NOSTRETCH_DISABLED; HAL_I2C_Init(&I2C1_struct); }
void i2c_frequency(i2c_t *obj, int hz) { MBED_ASSERT((hz > 0) && (hz <= 400000)); I2cHandle.Instance = (I2C_TypeDef *)(obj->i2c); int timeout; // wait before init timeout = LONG_TIMEOUT; while ((__HAL_I2C_GET_FLAG(&I2cHandle, I2C_FLAG_BUSY)) && (timeout-- != 0)); // I2C configuration I2cHandle.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; I2cHandle.Init.ClockSpeed = hz; I2cHandle.Init.DualAddressMode = I2C_DUALADDRESS_DISABLED; I2cHandle.Init.DutyCycle = I2C_DUTYCYCLE_2; I2cHandle.Init.GeneralCallMode = I2C_GENERALCALL_DISABLED; I2cHandle.Init.NoStretchMode = I2C_NOSTRETCH_DISABLED; I2cHandle.Init.OwnAddress1 = 0; I2cHandle.Init.OwnAddress2 = 0; HAL_I2C_Init(&I2cHandle); if (obj->slave) { /* Enable Address Acknowledge */ I2cHandle.Instance->CR1 |= I2C_CR1_ACK; } }
/** * @brief Initializes peripherals used by the I2C EEPROM driver. * @param None * @retval None */ bool TWI_open(new_twi* TwiStruct) { if(!TwiStruct) return false; I2C_HandleTypeDef *I2cHandle = calloc(1, sizeof(I2C_HandleTypeDef)); if(!I2cHandle) return false; //I2C_InitTypeDef I2C_InitStructure; TwiStruct->udata = (void *)I2cHandle; sEE_LowLevel_Init(TwiStruct); /*##-1- Configure the I2C peripheral #######################################*/ I2cHandle->Instance = sEE_I2C[TwiStruct->TwiNr]; I2cHandle->Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; I2cHandle->Init.Timing = I2C_TIMING; I2cHandle->Init.DualAddressMode = I2C_DUALADDRESS_DISABLE; //I2cHandle->Init.DutyCycle = I2C_DUTYCYCLE_2; I2cHandle->Init.GeneralCallMode = I2C_GENERALCALL_DISABLE; I2cHandle->Init.NoStretchMode = I2C_NOSTRETCH_DISABLE; I2cHandle->Init.OwnAddress1 = TwiStruct->MasterSlaveAddr; //I2cHandle.Init.OwnAddress2 = 0xFF; if(HAL_I2C_Init(I2cHandle) != HAL_OK) { /* Initialization Error */ return false; } return true; }
void i2c_frequency(i2c_t *obj, int hz) { I2cHandle.Instance = (I2C_TypeDef *)(obj->i2c); // Common settings: I2C clock = 48 MHz, Analog filter = ON, Digital filter coefficient = 0 switch (hz) { case 100000: I2cHandle.Init.Timing = 0x10805E89; // Standard mode with Rise Time = 400ns and Fall Time = 100ns break; case 400000: I2cHandle.Init.Timing = 0x00901850; // Fast mode with Rise Time = 250ns and Fall Time = 100ns break; case 1000000: I2cHandle.Init.Timing = 0x00700818; // Fast mode Plus with Rise Time = 60ns and Fall Time = 100ns break; default: error("Only 100kHz, 400kHz and 1MHz I2C frequencies are supported."); break; } // I2C configuration I2cHandle.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; I2cHandle.Init.DualAddressMode = I2C_DUALADDRESS_DISABLED; I2cHandle.Init.GeneralCallMode = I2C_GENERALCALL_DISABLED; I2cHandle.Init.NoStretchMode = I2C_NOSTRETCH_DISABLED; I2cHandle.Init.OwnAddress1 = 0; I2cHandle.Init.OwnAddress2 = 0; I2cHandle.Init.OwnAddress2Masks = I2C_OA2_NOMASK; HAL_I2C_Init(&I2cHandle); }
bool ADXL345::init(RANGE range, DATA_RATE dataRate){ GPIO PB10(GPIOB, GPIO::PIN10); GPIO PB11(GPIOB, GPIO::PIN11); PB10.init(GPIO::AF, GPIO::OD, GPIO::NONE, GPIO::MEDIUM); PB11.init(GPIO::AF, GPIO::OD, GPIO::NONE, GPIO::MEDIUM); /* Init I2C peripherals */ __HAL_RCC_I2C2_CLK_ENABLE(); i2c2.Instance = I2C2; i2c2.Init.ClockSpeed = 100000; // clock speed 100kHz i2c2.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; i2c2.Init.DualAddressMode = I2C_DUALADDRESS_DISABLED; i2c2.Init.DutyCycle = I2C_DUTYCYCLE_2; i2c2.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE; i2c2.Init.OwnAddress1 = 0x00; i2c2.Init.OwnAddress2 = 0x00; i2c2.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE; HAL_I2C_Init(&i2c2); if(this->getDevID() != 0xE5){ return false; } this->writeByte(POWER_CTL_REG, 0x08); // enable mesuare mode this->clearSettings(); this->setRange(range); this->setDataRate(dataRate); return true; }
void i2c_frequency(i2c_t *obj, int hz) { MBED_ASSERT((hz == 100000) || (hz == 400000) || (hz == 1000000)); I2cHandle.Instance = (I2C_TypeDef *)(obj->i2c); int timeout; // wait before init timeout = LONG_TIMEOUT; while ((__HAL_I2C_GET_FLAG(&I2cHandle, I2C_FLAG_BUSY)) && (timeout-- != 0)); // Common settings: I2C clock = 48 MHz, Analog filter = ON, Digital filter coefficient = 0 switch (hz) { case 100000: I2cHandle.Init.Timing = 0x10805E89; // Standard mode with Rise Time = 400ns and Fall Time = 100ns break; case 400000: I2cHandle.Init.Timing = 0x00901850; // Fast mode with Rise Time = 250ns and Fall Time = 100ns break; case 1000000: I2cHandle.Init.Timing = 0x00700818; // Fast mode Plus with Rise Time = 60ns and Fall Time = 100ns break; default: break; } // I2C configuration I2cHandle.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; I2cHandle.Init.DualAddressMode = I2C_DUALADDRESS_DISABLED; I2cHandle.Init.GeneralCallMode = I2C_GENERALCALL_DISABLED; I2cHandle.Init.NoStretchMode = I2C_NOSTRETCH_DISABLED; I2cHandle.Init.OwnAddress1 = 0; I2cHandle.Init.OwnAddress2 = 0; I2cHandle.Init.OwnAddress2Masks = I2C_OA2_NOMASK; HAL_I2C_Init(&I2cHandle); }
int tca9545_init(void){ GPIO_InitTypeDef GPIO_InitStruct; uint8_t buf; GPIO_InitStruct.Pin = tca9545RESET_PIN; GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP; GPIO_InitStruct.Pull = GPIO_PULLUP; GPIO_InitStruct.Speed = GPIO_SPEED_LOW; HAL_GPIO_Init(tca9545RESET_PORT, &GPIO_InitStruct); tca9545_reset(); /* Init I2C Bus */ hi2c1.Instance = I2C1; hi2c1.Init.ClockSpeed = 400000; hi2c1.Init.DutyCycle = I2C_DUTYCYCLE_2; hi2c1.Init.OwnAddress1 = 0; hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLED; hi2c1.Init.OwnAddress2 = 0; hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLED; hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLED; HAL_I2C_Init(&hi2c1); /* Check the chip information */ buf = tca9545_get(); return 0; }
void I2C_Reset(void) { HAL_GPIO_WritePin(I2Cx_WAKEUP_GPIO_PORT, I2Cx_WAKEUP_PIN, GPIO_PIN_RESET); HAL_I2C_DeInit(&I2cHandle); HAL_I2C_Init(&I2cHandle); HAL_Delay(5); HAL_GPIO_WritePin(I2Cx_WAKEUP_GPIO_PORT, I2Cx_WAKEUP_PIN, GPIO_PIN_SET); HAL_Delay(400); }
/* I2C1 init function */ static void MX_I2C1_Init(void) { hi2c1.Instance = I2C1; // hi2c1.Init.Timing = 0x2000090E; hi2c1.Init.Timing = (1 << I2C_TIMINGR_PRESC_Pos) | (0x13 << I2C_TIMINGR_SCLL_Pos) | (0x0F << I2C_TIMINGR_SCLH_Pos) | (0x2 << I2C_TIMINGR_SDADEL_Pos) | (0x4 << I2C_TIMINGR_SCLDEL_Pos) ; hi2c1.Init.OwnAddress1 = I2C_SLAVE_ADDR << 1; hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE; hi2c1.Init.OwnAddress2 = 0; hi2c1.Init.OwnAddress2Masks = I2C_OA2_NOMASK; hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLED; hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE; if (HAL_I2C_Init(&hi2c1) != HAL_OK) { Error_Handler(); } /**Configure Analogue filter */ if (HAL_I2CEx_ConfigAnalogFilter(&hi2c1, I2C_ANALOGFILTER_ENABLE) != HAL_OK) { Error_Handler(); } uart_printf("i2c init..\r\n"); HAL_I2C_Init(&hi2c1); uart_printf("i2c init done..\r\n"); }
/* I2C3 init function */ void MX_I2C3_Init(void) { hi2c3.Instance = I2C3; hi2c3.Init.ClockSpeed = 400000; hi2c3.Init.DutyCycle = I2C_DUTYCYCLE_2; hi2c3.Init.OwnAddress1 = 0x32 << 1; hi2c3.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; hi2c3.Init.DualAddressMode = I2C_DUALADDRESS_DISABLED; hi2c3.Init.OwnAddress2 = 0; hi2c3.Init.GeneralCallMode = I2C_GENERALCALL_DISABLED; hi2c3.Init.NoStretchMode = I2C_NOSTRETCH_DISABLED; HAL_I2C_Init(&hi2c3); }
void SSD1306_I2C_Init(void) { hi2c.Instance = SSD1306_I2Cx; hi2c.Init.ClockSpeed = SSD1306_CLOCK; hi2c.Init.DutyCycle = I2C_DUTYCYCLE_2; hi2c.Init.OwnAddress1 = 0; hi2c.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; hi2c.Init.DualAddressMode = I2C_DUALADDRESS_DISABLED; hi2c.Init.OwnAddress2 = 0; hi2c.Init.GeneralCallMode = I2C_GENERALCALL_DISABLED; hi2c.Init.NoStretchMode = I2C_NOSTRETCH_DISABLED; HAL_I2C_MspInit(&hi2c); HAL_I2C_Init(&hi2c); }
/** * @brief Initializes the I2C * @param None * @retval None */ void I2C2_Init() { /* Make sure we only initialize it once */ if (!prvInitialized) { /* Mutex semaphore for mutual exclusion to the I2C2 device */ xSemaphore = xSemaphoreCreateMutex(); if (xSemaphoreTake(xSemaphore, 100) == pdTRUE) { /* I2C clock & GPIOB enable */ __GPIOB_CLK_ENABLE(); __I2C2_CLK_ENABLE(); /* I2C SDA and SCL configuration */ GPIO_InitTypeDef GPIO_InitStructure; GPIO_InitStructure.Pin = I2C_SCL_PIN | I2C_SDA_PIN; GPIO_InitStructure.Mode = GPIO_MODE_AF_OD; GPIO_InitStructure.Alternate = GPIO_AF4_I2C2; GPIO_InitStructure.Pull = GPIO_NOPULL; GPIO_InitStructure.Speed = GPIO_SPEED_HIGH; HAL_GPIO_Init(I2C_PORT, &GPIO_InitStructure); // /* NVIC Configuration */ // NVIC_InitTypeDef NVIC_InitStructure; // /* Event interrupt */ // NVIC_InitStructure.NVIC_IRQChannel = I2C1_EV_IRQn; // NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = configMAX_SYSCALL_INTERRUPT_PRIORITY; // NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; // NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; // NVIC_Init(&NVIC_InitStructure); // /* Error interrupt */ // NVIC_InitStructure.NVIC_IRQChannel = I2C1_ER_IRQn; // NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 14; // NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0; // NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; // NVIC_Init(&NVIC_InitStructure); /* I2C Init */ HAL_I2C_Init(&I2C_Handle); /* Enable the I2C1 interrupts */ // I2C_ITConfig(I2C_PERIPHERAL, I2C_IT_EVT, ENABLE); // I2C_ITConfig(I2C_PERIPHERAL, I2C_IT_ERR, ENABLE); xSemaphoreGive(xSemaphore); } prvInitialized = true; } }
void MX_I2C3_Init( I2C_HandleTypeDef &i2c, uint32_t speed ) { i2c.Instance = I2C3; i2c.Init.ClockSpeed = speed; i2c.State = HAL_I2C_STATE_RESET; i2c.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; i2c.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE; i2c.Init.DutyCycle = I2C_DUTYCYCLE_16_9; i2c.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE; i2c.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE; i2c.Init.OwnAddress1 = 0; i2c.Init.OwnAddress2 = 0; HAL_I2C_Init( &i2c ); }
// Initialize i2c1. Currently connected to the IMU and the digital pot void init_i2c1(void) { //I2C_HandleTypeDef *hi2c1 contains our handle information //set config for the initial state of the i2c. hi2c1.Instance = I2C1; hi2c1.Init.ClockSpeed = I2C_CLOCK_RATE; //clock frequency; less than 400kHz hi2c1.Init.DutyCycle = I2C_DUTYCYCLE_2; //for fast mode (doesn't matter now) hi2c1.Init.OwnAddress1 = 0x0; //device address of the STM32 (doesn't matter) hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; //using 7 bit addresses hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLED; //disable dual address hi2c1.Init.OwnAddress2 = 0x0; //second device addr (doesn't matter) hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLED; //don't use 0x0 addr hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLED; //allow slave to stretch SCL hi2c1.State = HAL_I2C_STATE_RESET; HAL_I2C_Init(&hi2c1); }
/** * @brief Configures I2C interface. * @param None * @retval None */ static void I2Cx_Init(void) { if(HAL_I2C_GetState(&I2cHandle) == HAL_I2C_STATE_RESET) { /* DISCOVERY_I2Cx peripheral configuration */ I2cHandle.Init.ClockSpeed = 10000; I2cHandle.Init.DutyCycle = I2C_DUTYCYCLE_2; I2cHandle.Init.OwnAddress1 = 0x33; I2cHandle.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; I2cHandle.Instance = DISCOVERY_I2Cx; /* Init the I2C */ I2Cx_MspInit(); HAL_I2C_Init(&I2cHandle); } }
/** * @brief initializes the M24LR04E * @param None * @retval None */ void M24LR04E_init () { I2CHandle.Instance = I2C; I2CHandle.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; I2CHandle.Init.Timing = I2C_TIMING_100KHZ; I2CHandle.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE; I2CHandle.Init.OwnAddress2Masks = I2C_OA2_NOMASK; I2CHandle.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE; I2CHandle.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE; I2CHandle.Init.OwnAddress1 = 0xFE; I2CHandle.Init.OwnAddress2 = 0xFE; if(HAL_I2C_Init(&I2CHandle) != HAL_OK) { get_app_config()->error_code = I2C_ERROR; Error_Handler(); } }
/** * @brief Discovery I2Cx Bus initialization * @param None * @retval None */ void I2Cbar_Init(void) { if(HAL_I2C_GetState(&I2CbarHandle) == HAL_I2C_STATE_RESET) { I2CbarHandle.Instance = DISCOVERY_I2Cbar; I2CbarHandle.Init.OwnAddress1 = BAROMETER_I2C_ADDRESS; I2CbarHandle.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; I2CbarHandle.Init.DualAddressMode = I2C_DUALADDRESS_DISABLED; I2CbarHandle.Init.OwnAddress2 = 0; I2CbarHandle.Init.GeneralCallMode = I2C_GENERALCALL_DISABLED; I2CbarHandle.Init.NoStretchMode = I2C_NOSTRETCH_DISABLED; /* Init the I2C */ I2Cbar_MspInit(); HAL_I2C_Init(&I2CbarHandle); } }
/* I2C1 init function */ void MX_I2C1_Init(void) { hi2c1.Instance = I2C1; hi2c1.Init.ClockSpeed = 400000; hi2c1.Init.DutyCycle = I2C_DUTYCYCLE_2; hi2c1.Init.OwnAddress1 = I2C_ADDR_HOST_MCU; hi2c1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; hi2c1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLED; hi2c1.Init.OwnAddress2 = 0; hi2c1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLED; hi2c1.Init.NoStretchMode = I2C_NOSTRETCH_ENABLED; HAL_I2C_Init(&hi2c1); NVIC_SetPriority(I2C1_EV_IRQn, 6); HAL_NVIC_EnableIRQ(I2C1_EV_IRQn); }