void HAL_I2C_MspInit(I2C_HandleTypeDef* i2cHandle)
{
GPIO_InitTypeDef GPIO_InitStruct;
if(i2cHandle->Instance==I2C1)
{
/* USER CODE BEGIN I2C1_MspInit 0 */
/* USER CODE END I2C1_MspInit 0 */
/**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.Speed = GPIO_SPEED_FREQ_HIGH;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
__HAL_AFIO_REMAP_I2C1_ENABLE();
/* Peripheral clock enable */
__HAL_RCC_I2C1_CLK_ENABLE();
/* Peripheral interrupt init */
HAL_NVIC_SetPriority(I2C1_EV_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(I2C1_EV_IRQn);
HAL_NVIC_SetPriority(I2C1_ER_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(I2C1_ER_IRQn);
/* USER CODE BEGIN I2C1_MspInit 1 */
/* USER CODE END I2C1_MspInit 1 */
}
}
void Init_BMP085 (void)
{
GPIO_InitTypeDef GPIO_InitStruct;
__I2C1_CLK_ENABLE();
__GPIOB_CLK_ENABLE();
__HAL_RCC_AFIO_CLK_ENABLE();
// Init I2C
GPIO_InitStruct.Pin = GPIO_PIN_9|GPIO_PIN_8;
GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
__HAL_AFIO_REMAP_I2C1_ENABLE();
hi2c2.Instance = I2C1;
hi2c2.Init.ClockSpeed = 100000;
hi2c2.Init.DutyCycle = I2C_DUTYCYCLE_2;
hi2c2.Init.OwnAddress1 = 0;
hi2c2.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
hi2c2.Init.DualAddressMode = I2C_DUALADDRESS_DISABLED;
hi2c2.Init.OwnAddress2 = 0;
hi2c2.Init.GeneralCallMode = I2C_GENERALCALL_DISABLED;
hi2c2.Init.NoStretchMode = I2C_NOSTRETCH_DISABLED;
HAL_I2C_Init(&hi2c2);
I2Cdev_hi2c = &hi2c2; // init of i2cdevlib.
// You can select other i2c device anytime and
// call the same driver functions on other sensors
while(!BMP085_testConnection()) ;
BMP085_initialize();
}
/**
* Configure pin (input, output, alternate function or analog) + output speed + AF
*/
void pin_function(PinName pin, int data)
{
MBED_ASSERT(pin != (PinName)NC);
// Get the pin informations
uint32_t mode = STM_PIN_MODE(data);
uint32_t pupd = STM_PIN_PUPD(data);
uint32_t afnum = STM_PIN_AFNUM(data);
uint32_t port_index = STM_PORT(pin);
uint32_t pin_index = STM_PIN(pin);
// Enable GPIO clock
uint32_t gpio_add = Set_GPIO_Clock(port_index);
GPIO_TypeDef *gpio = (GPIO_TypeDef *)gpio_add;
// Enable AFIO clock
__HAL_RCC_AFIO_CLK_ENABLE();
// Configure Alternate Function
// Warning: Must be done before the GPIO is initialized
if (afnum > 0) {
switch (afnum) {
case 1: // Remap SPI1
__HAL_AFIO_REMAP_SPI1_ENABLE();
break;
case 2: // Remap I2C1
__HAL_AFIO_REMAP_I2C1_ENABLE();
break;
case 3: // Remap USART1
__HAL_AFIO_REMAP_USART1_ENABLE();
break;
case 4: // Remap USART2
__HAL_AFIO_REMAP_USART2_ENABLE();
break;
case 5: // Partial Remap USART3
__HAL_AFIO_REMAP_USART3_PARTIAL();
break;
case 6: // Partial Remap TIM1
__HAL_AFIO_REMAP_TIM1_PARTIAL();
break;
case 7: // Partial Remap TIM3
__HAL_AFIO_REMAP_TIM3_PARTIAL();
break;
case 8: // Full Remap TIM2
__HAL_AFIO_REMAP_TIM2_ENABLE();
break;
case 9: // Full Remap TIM3
__HAL_AFIO_REMAP_TIM3_ENABLE();
break;
default:
break;
}
}
// Configure GPIO
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.Pin = (uint32_t)(1 << pin_index);
GPIO_InitStructure.Mode = gpio_mode[mode];
GPIO_InitStructure.Pull = pupd;
GPIO_InitStructure.Speed = GPIO_SPEED_HIGH;
HAL_GPIO_Init(gpio, &GPIO_InitStructure);
// Disconnect JTAG-DP + SW-DP signals.
// Warning: Need to reconnect under reset
if ((pin == PA_13) || (pin == PA_14)) {
__HAL_AFIO_REMAP_SWJ_DISABLE(); // JTAG-DP Disabled and SW-DP Disabled
}
if ((pin == PA_15) || (pin == PB_3) || (pin == PB_4)) {
__HAL_AFIO_REMAP_SWJ_NOJTAG(); // JTAG-DP Disabled and SW-DP enabled
}
}
