void i2c_init(i2c_t *obj, PinName sda, PinName scl) {
// Determine the I2C to use
I2CName i2c_sda = (I2CName)pinmap_peripheral(sda, PinMap_I2C_SDA);
I2CName i2c_scl = (I2CName)pinmap_peripheral(scl, PinMap_I2C_SCL);
obj->i2c = (I2CName)pinmap_merge(i2c_sda, i2c_scl);
MBED_ASSERT(obj->i2c != (I2CName)NC);
// Enable I2C clock
if (obj->i2c == I2C_1) {
__I2C1_CLK_ENABLE();
}
if (obj->i2c == I2C_2) {
__I2C2_CLK_ENABLE();
}
if (obj->i2c == I2C_3) {
__I2C3_CLK_ENABLE();
}
// Configure I2C pins
pinmap_pinout(sda, PinMap_I2C_SDA);
pinmap_pinout(scl, PinMap_I2C_SCL);
pin_mode(sda, OpenDrain);
pin_mode(scl, OpenDrain);
// Reset to clear pending flags if any
i2c_reset(obj);
// I2C configuration
i2c_frequency(obj, 100000); // 100 kHz per default
}
void HAL_I2C_MspInit(I2C_HandleTypeDef* hi2c)
{
GPIO_InitTypeDef GPIO_InitStruct;
if(hi2c->Instance==I2C1)
{
/* USER CODE BEGIN I2C1_MspInit 0 */
/* USER CODE END I2C1_MspInit 0 */
/**I2C1 GPIO Configuration
PB6 ------> I2C1_SCL
PB7 ------> I2C1_SDA
*/
GPIO_InitStruct.Pin = GPIO_PIN_6|GPIO_PIN_7;
GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/* Peripheral clock enable */
__I2C1_CLK_ENABLE();
/* USER CODE BEGIN I2C1_MspInit 1 */
/* USER CODE END I2C1_MspInit 1 */
}
}
void HAL_I2C_MspInit(I2C_HandleTypeDef* hi2c)
{
GPIO_InitTypeDef GPIO_InitStruct;
if(hi2c->Instance==I2C1)
{
/* USER CODE BEGIN I2C1_MspInit 0 */
/* USER CODE END I2C1_MspInit 0 */
/**I2C1 GPIO Configuration
PB7 ------> I2C1_SDA
PB8 ------> I2C1_SCL
*/
GPIO_InitStruct.Pin = GPIO_PIN_7|GPIO_PIN_8;
GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF4_I2C1;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/* Peripheral clock enable */
__I2C1_CLK_ENABLE();
/* Peripheral interrupt init*/
HAL_NVIC_SetPriority(I2C1_EV_IRQn, 7, 0);
HAL_NVIC_EnableIRQ(I2C1_EV_IRQn);
HAL_NVIC_SetPriority(I2C1_ER_IRQn, 6, 0);
HAL_NVIC_EnableIRQ(I2C1_ER_IRQn);
/* USER CODE BEGIN I2C1_MspInit 1 */
/* USER CODE END I2C1_MspInit 1 */
}
}
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);
}
void i2c_init(i2c_t *obj, PinName sda, PinName scl) {
// Determine the I2C to use
I2CName i2c_sda = (I2CName)pinmap_peripheral(sda, PinMap_I2C_SDA);
I2CName i2c_scl = (I2CName)pinmap_peripheral(scl, PinMap_I2C_SCL);
obj->i2c = (I2CName)pinmap_merge(i2c_sda, i2c_scl);
if (obj->i2c == (I2CName)NC) {
error("I2C error: pinout mapping failed.");
}
// Enable I2C clock
if (obj->i2c == I2C_1) {
__HAL_RCC_I2C1_CONFIG(RCC_I2C1CLKSOURCE_SYSCLK);
__I2C1_CLK_ENABLE();
}
if (obj->i2c == I2C_2) {
__I2C2_CLK_ENABLE();
}
// Configure I2C pins
pinmap_pinout(sda, PinMap_I2C_SDA);
pinmap_pinout(scl, PinMap_I2C_SCL);
pin_mode(sda, OpenDrain);
pin_mode(scl, OpenDrain);
// Reset to clear pending flags if any
i2c_reset(obj);
// I2C configuration
i2c_frequency(obj, 100000); // 100 kHz per default
}
void HAL_I2C_MspInit(I2C_HandleTypeDef *hi2c)
{
GPIO_InitTypeDef GPIO_InitStruct;
//Enable the GPIO-clock
__GPIOB_CLK_ENABLE();
//Enable the I2C-Clock
__I2C1_CLK_ENABLE();
//Configure GPIOB Pin_6 as SCL for I2C
GPIO_InitStruct.Pin = GPIO_PIN_6;
GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF4_I2C1;
//init GPIOB PIN6 (SCL-Pin)
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
//Configure GPIOB Pin_7 as SDA for USART
GPIO_InitStruct.Pin = GPIO_PIN_7;
GPIO_InitStruct.Alternate = GPIO_AF4_I2C1;
//init GPIOB PIN7 (SDA-Pin)
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
//Setup the Interruptlevel
HAL_NVIC_SetPriority(I2C1_EV_IRQn, 0, 1);
HAL_NVIC_SetPriority(I2C1_ER_IRQn, 0, 1);
//enable the interrupt for USART1
HAL_NVIC_EnableIRQ(I2C1_EV_IRQn);
HAL_NVIC_EnableIRQ(I2C1_ER_IRQn);
}
void HAL_I2C_MspInit(I2C_HandleTypeDef* hi2c)
{
GPIO_InitTypeDef GPIO_InitStruct;
if(hi2c->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.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
GPIO_InitStruct.Alternate = GPIO_AF4_I2C1;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/* Peripheral clock enable */
__I2C1_CLK_ENABLE();
/* USER CODE BEGIN I2C1_MspInit 1 */
/* USER CODE END I2C1_MspInit 1 */
}
}
void HAL_I2C_MspInit(I2C_HandleTypeDef *hi2c)
{
GPIO_InitTypeDef GPIO_InitStruct;
if(hi2c->Instance==I2C1)
{
/* Peripheral clock enable */
I2C1_SDA_GPIO_CLK_ENABLE();
I2C1_SCL_GPIO_CLK_ENABLE();
__I2C1_CLK_ENABLE();
/**I2C1 GPIO Configuration
*/
GPIO_InitStruct.Pin = I2C1_SDA_PIN;
GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FAST;
GPIO_InitStruct.Alternate = I2C1_SDA_AF;
HAL_GPIO_Init(I2C1_SDA_PORT, &GPIO_InitStruct);
GPIO_InitStruct.Pin = I2C1_SCL_PIN;
GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FAST;
GPIO_InitStruct.Alternate = I2C1_SCL_AF;
HAL_GPIO_Init(I2C1_SCL_PORT, &GPIO_InitStruct);
}
}
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_init(i2c_t *obj, PinName sda, PinName scl)
{
static int i2c1_inited = 0;
static int i2c2_inited = 0;
#if defined(I2C3_BASE)
static int i2c3_inited = 0;
#endif
// Determine the I2C to use
I2CName i2c_sda = (I2CName)pinmap_peripheral(sda, PinMap_I2C_SDA);
I2CName i2c_scl = (I2CName)pinmap_peripheral(scl, PinMap_I2C_SCL);
obj->i2c = (I2CName)pinmap_merge(i2c_sda, i2c_scl);
MBED_ASSERT(obj->i2c != (I2CName)NC);
// Enable I2C1 clock and pinout if not done
if ((obj->i2c == I2C_1) && !i2c1_inited) {
i2c1_inited = 1;
__HAL_RCC_I2C1_CONFIG(RCC_I2C1CLKSOURCE_SYSCLK);
__I2C1_CLK_ENABLE();
// Configure I2C pins
pinmap_pinout(sda, PinMap_I2C_SDA);
pinmap_pinout(scl, PinMap_I2C_SCL);
pin_mode(sda, OpenDrain);
pin_mode(scl, OpenDrain);
}
// Enable I2C2 clock and pinout if not done
if ((obj->i2c == I2C_2) && !i2c2_inited) {
i2c2_inited = 1;
__I2C2_CLK_ENABLE();
// Configure I2C pins
pinmap_pinout(sda, PinMap_I2C_SDA);
pinmap_pinout(scl, PinMap_I2C_SCL);
pin_mode(sda, OpenDrain);
pin_mode(scl, OpenDrain);
}
#if defined(I2C3_BASE)
// Enable I2C3 clock and pinout if not done
if ((obj->i2c == I2C_3) && !i2c3_inited) {
i2c3_inited = 1;
__I2C3_CLK_ENABLE();
// Configure I2C pins
pinmap_pinout(sda, PinMap_I2C_SDA);
pinmap_pinout(scl, PinMap_I2C_SCL);
pin_mode(sda, OpenDrain);
pin_mode(scl, OpenDrain);
}
#endif
// Reset to clear pending flags if any
i2c_reset(obj);
// I2C configuration
i2c_frequency(obj, 100000); // 100 kHz per default
}
void HAL_I2C_MspInit(I2C_HandleTypeDef* hi2c)
{
GPIO_InitTypeDef GPIO_InitStruct;
if(hi2c->Instance==I2C1)
{
/* USER CODE BEGIN I2C1_MspInit 0 */
/* USER CODE END I2C1_MspInit 0 */
/**I2C1 GPIO Configuration
PB6 ------> I2C1_SCL
PB7 ------> I2C1_SDA
*/
GPIO_InitStruct.Pin = GPIO_PIN_6;
GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
GPIO_InitStruct.Alternate = GPIO_AF4_I2C1;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_7;
GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF4_I2C1;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/* Peripheral clock enable */
__I2C1_CLK_ENABLE();
/* Peripheral DMA init*/
hdma_i2c1_rx.Instance = DMA1_Stream5;
hdma_i2c1_rx.Init.Channel = DMA_CHANNEL_1;
hdma_i2c1_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
hdma_i2c1_rx.Init.PeriphInc = DMA_PINC_DISABLE;
hdma_i2c1_rx.Init.MemInc = DMA_MINC_ENABLE;
hdma_i2c1_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
hdma_i2c1_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
hdma_i2c1_rx.Init.Mode = DMA_NORMAL;
hdma_i2c1_rx.Init.Priority = DMA_PRIORITY_MEDIUM;
hdma_i2c1_rx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
HAL_DMA_Init(&hdma_i2c1_rx);
__HAL_LINKDMA(hi2c,hdmarx,hdma_i2c1_rx);
/* Peripheral interrupt init*/
HAL_NVIC_SetPriority(I2C1_EV_IRQn, 0, 13);
HAL_NVIC_EnableIRQ(I2C1_EV_IRQn);
HAL_NVIC_SetPriority(I2C1_ER_IRQn, 0, 15);
HAL_NVIC_EnableIRQ(I2C1_ER_IRQn);
/* USER CODE BEGIN I2C1_MspInit 1 */
/* USER CODE END I2C1_MspInit 1 */
}
}
void HAL_I2C_MspInit(I2C_HandleTypeDef* hi2c)
{
GPIO_InitTypeDef GPIO_InitStruct;
if(hi2c->Instance==I2C1)
{
/* USER CODE BEGIN I2C1_MspInit 0 */
/* USER CODE END I2C1_MspInit 0 */
/**I2C1 GPIO Configuration
PB6 ------> I2C1_SCL
PB7 ------> I2C1_SDA
*/
GPIO_InitStruct.Pin = GPIO_PIN_6|GPIO_PIN_7;
GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/* Peripheral clock enable */
__I2C1_CLK_ENABLE();
/* Peripheral interrupt init*/
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 */
}
else if(hi2c->Instance==I2C2)
{
/* USER CODE BEGIN I2C2_MspInit 0 */
/* USER CODE END I2C2_MspInit 0 */
/**I2C2 GPIO Configuration
PB10 ------> I2C2_SCL
PB11 ------> I2C2_SDA
*/
GPIO_InitStruct.Pin = GPIO_PIN_10|GPIO_PIN_11;
GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/* Peripheral clock enable */
__I2C2_CLK_ENABLE();
/* Peripheral interrupt init*/
HAL_NVIC_SetPriority(I2C2_EV_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(I2C2_EV_IRQn);
HAL_NVIC_SetPriority(I2C2_ER_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(I2C2_ER_IRQn);
/* USER CODE BEGIN I2C2_MspInit 1 */
/* USER CODE END I2C2_MspInit 1 */
}
}
void HAL_I2C_MspInit(I2C_HandleTypeDef* hi2c)
{
GPIO_InitTypeDef GPIO_InitStruct;
if(hi2c->Instance==I2C1)
{
/* USER CODE BEGIN I2C1_MspInit 0 */
/* USER CODE END I2C1_MspInit 0 */
/**I2C1 GPIO Configuration
PB6 ------> I2C1_SCL
PB7 ------> I2C1_SDA
*/
GPIO_InitStruct.Pin = GPIO_PIN_6|GPIO_PIN_7;
GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
GPIO_InitStruct.Speed = GPIO_SPEED_LOW;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/* Peripheral clock enable */
__I2C1_CLK_ENABLE();
/* Peripheral DMA init*/
hdma_i2c1_rx.Instance = DMA1_Channel7;
hdma_i2c1_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
hdma_i2c1_rx.Init.PeriphInc = DMA_PINC_DISABLE;
hdma_i2c1_rx.Init.MemInc = DMA_MINC_DISABLE;
hdma_i2c1_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
hdma_i2c1_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
hdma_i2c1_rx.Init.Mode = DMA_NORMAL;
hdma_i2c1_rx.Init.Priority = DMA_PRIORITY_LOW;
HAL_DMA_Init(&hdma_i2c1_rx);
__HAL_LINKDMA(hi2c,hdmarx,hdma_i2c1_rx);
hdma_i2c1_tx.Instance = DMA1_Channel6;
hdma_i2c1_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
hdma_i2c1_tx.Init.PeriphInc = DMA_PINC_DISABLE;
hdma_i2c1_tx.Init.MemInc = DMA_MINC_DISABLE;
hdma_i2c1_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
hdma_i2c1_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
hdma_i2c1_tx.Init.Mode = DMA_NORMAL;
hdma_i2c1_tx.Init.Priority = DMA_PRIORITY_LOW;
HAL_DMA_Init(&hdma_i2c1_tx);
__HAL_LINKDMA(hi2c,hdmatx,hdma_i2c1_tx);
/* USER CODE BEGIN I2C1_MspInit 1 */
/* USER CODE END I2C1_MspInit 1 */
}
}
void i2c_init(i2c_t *obj, PinName sda, PinName scl)
{
// Determine the I2C to use
I2CName i2c_sda = (I2CName)pinmap_peripheral(sda, PinMap_I2C_SDA);
I2CName i2c_scl = (I2CName)pinmap_peripheral(scl, PinMap_I2C_SCL);
obj->i2c = (I2CName)pinmap_merge(i2c_sda, i2c_scl);
MBED_ASSERT(obj->i2c != (I2CName)NC);
// Enable I2C1 clock and pinout if not done
if ((obj->i2c == I2C_1) && !i2c1_inited) {
i2c1_inited = 1;
__I2C1_CLK_ENABLE();
// Configure I2C pins
pinmap_pinout(sda, PinMap_I2C_SDA);
pinmap_pinout(scl, PinMap_I2C_SCL);
pin_mode(sda, OpenDrain);
pin_mode(scl, OpenDrain);
}
// Enable I2C2 clock and pinout if not done
if ((obj->i2c == I2C_2) && !i2c2_inited) {
i2c2_inited = 1;
__I2C2_CLK_ENABLE();
// Configure I2C pins
pinmap_pinout(sda, PinMap_I2C_SDA);
pinmap_pinout(scl, PinMap_I2C_SCL);
pin_mode(sda, OpenDrain);
pin_mode(scl, OpenDrain);
}
// Enable I2C3 clock and pinout if not done
if ((obj->i2c == I2C_3) && !i2c3_inited) {
i2c3_inited = 1;
__I2C3_CLK_ENABLE();
// Configure I2C pins
pinmap_pinout(sda, PinMap_I2C_SDA);
pinmap_pinout(scl, PinMap_I2C_SCL);
pin_mode(sda, OpenDrain);
pin_mode(scl, OpenDrain);
}
// Reset to clear pending flags if any
i2c_reset(obj);
// I2C configuration
i2c_frequency(obj, 100000); // 100 kHz per default
// I2C master by default
obj->slave = 0;
}
//******************************************************************************
// board_i2c_enable_clock
//
// Ensures that the specified Timer's clock is turned on.
//******************************************************************************
int board_i2c_enable_clock (int module_id)
{
//--------------------------------------------------------
// Turn on clock for the associated I2Cx module.
//--------------------------------------------------------
switch (module_id)
{ case 1: // I2C1
__I2C1_CLK_ENABLE();
break;
case 2: // I2C2
__I2C2_CLK_ENABLE();
break;
}
return (0); // denote everything worked OK
}
// Implement I2C MSP Init, as called for in the stm32f4xx_hal_i2c.c file
void HAL_I2C_MspInit(I2C_HandleTypeDef *hi2c)
{
///// SET UP GPIO /////
//GPIO initialization constants
GPIO_InitTypeDef GPIO_InitStruct;
//Enable peripheral and GPIO clockS
__GPIOB_CLK_ENABLE();
__I2C1_CLK_ENABLE();
//IMU GPIO configuration
/*
T_SWO -> PB3
SCL1 -> PB8 (pin 23 on MPU6500)
SDA1 -> PB9 (pin 24 on MPU6500)
Be mindful that the SPI pins are also located on this bus!
Also:
IMUINT (pin 12 on MPU6500)
Note: AD0/SDO grounded -> address for MPU6500 is 0b1101000
*/
//Config inputs:
//We are configuring these pins.
GPIO_InitStruct.Pin = GPIO_PIN_8 | GPIO_PIN_9;
//I2C wants to have open drain lines pulled up by resistors
GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
//Although we need pullups for I2C, we have them externally on
// the board.
GPIO_InitStruct.Pull = GPIO_NOPULL;
//Set GPIO speed to fastest speed.
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
//Assign function to pins.
GPIO_InitStruct.Alternate = GPIO_AF4_I2C1;
//Initialize the pins.
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
///// SET UP NVIC ///// (interrupts!)
#if I2C_USE_INT == 1
HAL_NVIC_SetPriority(I2C1_EV_IRQn, 0, 1); //event interrupt
HAL_NVIC_EnableIRQ(I2C1_EV_IRQn);
HAL_NVIC_SetPriority(I2C1_ER_IRQn, 0, 1);//error interrupt
HAL_NVIC_EnableIRQ(I2C1_ER_IRQn);
#endif
}
void i2c_init(I2C_HandleTypeDef *i2c) {
// init the GPIO lines
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.Mode = GPIO_MODE_AF_OD;
GPIO_InitStructure.Speed = GPIO_SPEED_FAST;
GPIO_InitStructure.Pull = GPIO_NOPULL; // have external pull-up resistors on both lines
const pin_obj_t *pins[2];
if (0) {
#if MICROPY_HW_ENABLE_I2C1
} else if (i2c == &I2CHandle1) {
// X-skin: X9=PB6=SCL, X10=PB7=SDA
pins[0] = &pin_B6;
pins[1] = &pin_B7;
GPIO_InitStructure.Alternate = GPIO_AF4_I2C1;
// enable the I2C clock
__I2C1_CLK_ENABLE();
#endif
} else if (i2c == &I2CHandle2) {
// Y-skin: Y9=PB10=SCL, Y10=PB11=SDA
pins[0] = &pin_B10;
pins[1] = &pin_B11;
GPIO_InitStructure.Alternate = GPIO_AF4_I2C2;
// enable the I2C clock
__I2C2_CLK_ENABLE();
} else {
// I2C does not exist for this board (shouldn't get here, should be checked by caller)
return;
}
// init the GPIO lines
for (uint i = 0; i < 2; i++) {
GPIO_InitStructure.Pin = pins[i]->pin_mask;
HAL_GPIO_Init(pins[i]->gpio, &GPIO_InitStructure);
}
// init the I2C device
if (HAL_I2C_Init(i2c) != HAL_OK) {
// init error
// TODO should raise an exception, but this function is not necessarily going to be
// called via Python, so may not be properly wrapped in an NLR handler
printf("HardwareError: HAL_I2C_Init failed\n");
return;
}
}
void HAL_I2C_MspInit(I2C_HandleTypeDef* hi2c)
{
GPIO_InitTypeDef GPIO_InitStruct;
if(hi2c->Instance==I2C1)
{
__I2C2_FORCE_RESET();
__I2C2_RELEASE_RESET();
/* 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_PP;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF4_I2C1;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
//hi2c->Instance->CR1 = I2C_CR1_SWRST; //复位I2C控制器
//hi2c->Instance->CR1 = 0; // 解除复位（不会自动清除）
/* Peripheral clock enable */
__I2C1_CLK_ENABLE();
/* USER CODE BEGIN I2C1_MspInit 1 */
/* USER CODE END I2C1_MspInit 1 */
/*##-3- Configure the NVIC for I2C #########################################*/
/* NVIC for I2C1 */
// HAL_NVIC_SetPriority(I2C1_ER_IRQn, 0, 1);
// HAL_NVIC_EnableIRQ(I2C1_ER_IRQn);
// HAL_NVIC_SetPriority(I2C1_EV_IRQn, 0, 2);
// HAL_NVIC_EnableIRQ(I2C1_EV_IRQn);
}
}
/* PCA9506DGG IO Expander works over I2C1
PB8: SCL
PB9: SDA
PC13: *INT (interrupt pin)
PC14: *OE pin (output enable)
PC15: *RESET pin
*/
void InitializeIOexpander()
{
__GPIOB_CLK_ENABLE(); /* Enable I2C1 pins peripheral clock */
__I2C1_CLK_ENABLE(); /* Enable I2C1 peripheral clock */
GPIO_InitTypeDef GPIO_I2C1; /* Struct for I2C1 pins */
GPIO_I2C1.Mode = GPIO_MODE_AF_OD; /* Alternate function, Open-Drain */
GPIO_I2C1.Pin = GPIO_PIN_8 | GPIO_PIN_9; /* PB8:SCL PB9:SDA */
GPIO_I2C1.Pull = GPIO_PULLUP; /* Pull up resistor for I2C */
GPIO_I2C1.Speed = GPIO_SPEED_HIGH; /* High pin speed */
GPIO_I2C1.Alternate = GPIO_AF4_I2C1; /* Pins connected to I2C1 */
HAL_GPIO_Init(GPIOB, &GPIO_I2C1); /* Write pin config to registers */
handleI2C1.Instance = I2C1; /* I2C1 is used */
handleI2C1.Init.ClockSpeed = 400000; /* 400kHz bus speed */
handleI2C1.Init.DutyCycle = I2C_DUTYCYCLE_2; /* 50:50 duty cycle */
handleI2C1.Init.OwnAddress1 = 0x00; /* Address for this device. Not necessary */
handleI2C1.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT; /* 7 bit address mode */
handleI2C1.Init.DualAddressMode = I2C_DUALADDRESS_DISABLED; /* Single address is enough */
handleI2C1.Init.OwnAddress2 = 0x00; /* Not important since dual address mode is disabled */
handleI2C1.Init.GeneralCallMode = I2C_GENERALCALL_DISABLED; /* General call disabled, since this device is not slave */
handleI2C1.Init.NoStretchMode = I2C_NOSTRETCH_DISABLED; /* Stretch mode is free, slave can stretch the bus */
Console("I2C1 HAL_I2C_Init (0 is ok):", HAL_I2C_Init(&handleI2C1)); /* Write configuration to I2C register */
__GPIOC_CLK_ENABLE(); /* Enable C Port peripheral clock */
GPIO_InitTypeDef GPIO_INT; /* Create a struct for INTerrupt pin */
GPIO_INT.Pin = GPIO_PIN_13; /* PC13 */
GPIO_INT.Mode = GPIO_MODE_IT_RISING_FALLING; /* INTerrupt on both edges */
GPIO_INT.Pull = GPIO_PULLUP; /* Pull up resistor */
HAL_GPIO_Init(GPIOC, &GPIO_INT); /* Write to PORTC register */
HAL_NVIC_SetPriority(EXTI15_10_IRQn, 1, 0); /* Pre group 1, sub 2 */
HAL_NVIC_EnableIRQ(EXTI15_10_IRQn); /* Enable External interrupt on PC13 */.
void HAL_I2C_MspInit(I2C_HandleTypeDef* hi2c)
{
GPIO_InitTypeDef GPIO_InitStruct;
if(hi2c->Instance==I2C1)
{
/**I2C1 GPIO Configuration
PF0-OSC_IN ------> I2C1_SDA
PF1-OSC_OUT ------> I2C1_SCL
*/
GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1;
GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF1_I2C1;
HAL_GPIO_Init(GPIOF, &GPIO_InitStruct);
/* Peripheral clock enable */
__I2C1_CLK_ENABLE();
}
}
void HAL_I2C_MspInit(I2C_HandleTypeDef* hi2c)
{
GPIO_InitTypeDef GPIO_InitStruct;
if(hi2c->Instance==I2C1)
{
/* Peripheral clock enable */
__I2C1_CLK_ENABLE();
/**I2C1 GPIO Configuration
PB6 ------> I2C1_SCL
PB7 ------> I2C1_SDA
*/
GPIO_InitStruct.Pin = GPIO_PIN_6|GPIO_PIN_7;
GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF4_I2C1;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
}
}
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();
}
void i2c_init(I2C_HandleTypeDef *i2c) {
int i2c_unit;
const pin_obj_t *scl_pin;
const pin_obj_t *sda_pin;
if (0) {
#if defined(MICROPY_HW_I2C1_SCL)
} else if (i2c == &I2CHandle1) {
i2c_unit = 1;
scl_pin = &MICROPY_HW_I2C1_SCL;
sda_pin = &MICROPY_HW_I2C1_SDA;
__I2C1_CLK_ENABLE();
#endif
#if defined(MICROPY_HW_I2C2_SCL)
} else if (i2c == &I2CHandle2) {
i2c_unit = 2;
scl_pin = &MICROPY_HW_I2C2_SCL;
sda_pin = &MICROPY_HW_I2C2_SDA;
__I2C2_CLK_ENABLE();
#endif
#if defined(MICROPY_HW_I2C3_SCL)
} else if (i2c == &I2CHandle3) {
i2c_unit = 3;
scl_pin = &MICROPY_HW_I2C3_SCL;
sda_pin = &MICROPY_HW_I2C3_SDA;
__I2C3_CLK_ENABLE();
#endif
#if defined(MICROPY_HW_I2C4_SCL)
} else if (i2c == &I2CHandle4) {
i2c_unit = 4;
scl_pin = &MICROPY_HW_I2C4_SCL;
sda_pin = &MICROPY_HW_I2C4_SDA;
__I2C3_CLK_ENABLE();
#endif
} else {
// I2C does not exist for this board (shouldn't get here, should be checked by caller)
return;
}
// init the GPIO lines
uint32_t mode = MP_HAL_PIN_MODE_ALT_OPEN_DRAIN;
uint32_t pull = MP_HAL_PIN_PULL_NONE; // have external pull-up resistors on both lines
mp_hal_pin_config_alt(scl_pin, mode, pull, AF_FN_I2C, i2c_unit);
mp_hal_pin_config_alt(sda_pin, mode, pull, AF_FN_I2C, i2c_unit);
// init the I2C device
if (HAL_I2C_Init(i2c) != HAL_OK) {
// init error
// TODO should raise an exception, but this function is not necessarily going to be
// called via Python, so may not be properly wrapped in an NLR handler
printf("OSError: HAL_I2C_Init failed\n");
return;
}
// invalidate the DMA channels so they are initialised on first use
const pyb_i2c_obj_t *self = &pyb_i2c_obj[i2c_unit - 1];
dma_invalidate_channel(self->tx_dma_descr);
dma_invalidate_channel(self->rx_dma_descr);
if (0) {
#if defined(MICROPY_HW_I2C1_SCL)
} else if (i2c->Instance == I2C1) {
HAL_NVIC_EnableIRQ(I2C1_EV_IRQn);
HAL_NVIC_EnableIRQ(I2C1_ER_IRQn);
#endif
#if defined(MICROPY_HW_I2C2_SCL)
} else if (i2c->Instance == I2C2) {
HAL_NVIC_EnableIRQ(I2C2_EV_IRQn);
HAL_NVIC_EnableIRQ(I2C2_ER_IRQn);
#endif
#if defined(MICROPY_HW_I2C3_SCL)
} else if (i2c->Instance == I2C3) {
HAL_NVIC_EnableIRQ(I2C3_EV_IRQn);
HAL_NVIC_EnableIRQ(I2C3_ER_IRQn);
#endif
#if defined(MICROPY_HW_I2C4_SCL)
} else if (i2c->Instance == I2C4) {
HAL_NVIC_EnableIRQ(I2C4_EV_IRQn);
HAL_NVIC_EnableIRQ(I2C4_ER_IRQn);
#endif
}
}
/*
(#)Initialize the I2C low level resources by implementing the HAL_I2C_MspInit() API:
(##) Enable the I2Cx interface clock
(##) I2C pins configuration
(+++) Enable the clock for the I2C GPIOs
(+++) Configure I2C pins as alternate function open-drain
(##) NVIC configuration if you need to use interrupt process
(+++) Configure the I2Cx interrupt priority
(+++) Enable the NVIC I2C IRQ Channel
(##) DMA Configuration if you need to use DMA process
(+++) Declare a DMA_HandleTypeDef handle structure for the transmit or receive channel
(+++) Enable the DMAx interface clock using
(+++) Configure the DMA handle parameters
(+++) Configure the DMA Tx or Rx channel
(+++) Associate the initialized DMA handle to the hi2c DMA Tx or Rx handle
(+++) Configure the priority and enable the NVIC for the transfer complete interrupt on
the DMA Tx or Rx channel
*/
void HAL_I2C_MspInit(I2C_HandleTypeDef *hi2c) {
// (#)Initialize the I2C low level resources by implementing the HAL_I2C_MspInit() API:
// (##) Enable the I2Cx interface clock
//__HAL_I2C_ENABLE(hi2c); //necessary?
__I2C1_CLK_ENABLE();
// (##) I2C pins configuration
// (+++) Enable the clock for the I2C GPIOs
__GPIOB_CLK_ENABLE();
// (+++) Configure I2C pins as alternate function open-drain
GPIO_InitTypeDef GPIO_InitStruct = {
.Pin = I2C_SCL_GPIO_PIN | I2C_SDA_GPIO_PIN,
.Mode = GPIO_MODE_AF_OD,
.Pull = GPIO_PULLUP, //?
.Speed = GPIO_SPEED_FREQ_HIGH, //?
.Alternate = GPIO_AF4_I2C1
};
HAL_GPIO_Init(I2C_GPIO_PORT, &GPIO_InitStruct);
//HAL_GPIO_WritePin(GPIOC, GPIO_PIN_8, GPIO_PIN_SET);
// (##) NVIC configuration if you need to use interrupt process
// (+++) Configure the I2Cx interrupt priority
// (+++) Enable the NVIC I2C IRQ Channel
// (##) DMA Configuration if you need to use DMA process
// (+++) Declare a DMA_HandleTypeDef handle structure for the transmit or receive channel
// (+++) Enable the DMAx interface clock using
// (+++) Configure the DMA handle parameters
// (+++) Configure the DMA Tx or Rx channel
// (+++) Associate the initialized DMA handle to the hi2c DMA Tx or Rx handle
// (+++) Configure the priority and enable the NVIC for the transfer complete interrupt on
// the DMA Tx or Rx channel
}
static I2C_HandleTypeDef hi2c1;
static I2C_HandleTypeDef hi2c2;
int I2C_init(I2C_TypeDef *I2Cx) {
I2C_HandleTypeDef *hi2c;
if (I2Cx == I2C1) {
hi2c = &hi2c1;
hi2c->Instance = I2C1;
} else {
return -1; // Not implemented
}
hi2c->Init.ClockSpeed = 400000;
hi2c->Init.DutyCycle = I2C_DUTYCYCLE_2;
hi2c->Init.OwnAddress1 = 0x16;
hi2c->Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
hi2c->Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
hi2c->Init.OwnAddress2 = 0xFE;
hi2c->Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
hi2c->Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
if (HAL_I2C_Init(hi2c) != HAL_OK)
return -1;
return 0;
}
void HAL_I2C_MspInit(I2C_HandleTypeDef* hi2c)
{
GPIO_InitTypeDef GPIO_InitStruct;
if(hi2c->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.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF4_I2C1;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/* Peripheral clock enable */
__I2C1_CLK_ENABLE();
/* Peripheral DMA init*/
hdma_i2c1_rx.Instance = DMA1_Stream5;
hdma_i2c1_rx.Init.Channel = DMA_CHANNEL_1;
hdma_i2c1_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
hdma_i2c1_rx.Init.PeriphInc = DMA_PINC_DISABLE;
hdma_i2c1_rx.Init.MemInc = DMA_MINC_ENABLE;
hdma_i2c1_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
hdma_i2c1_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
hdma_i2c1_rx.Init.Mode = DMA_NORMAL;
hdma_i2c1_rx.Init.Priority = DMA_PRIORITY_VERY_HIGH;
hdma_i2c1_rx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
HAL_DMA_Init(&hdma_i2c1_rx);
__HAL_LINKDMA(hi2c,hdmarx,hdma_i2c1_rx);
hdma_i2c1_tx.Instance = DMA1_Stream6;
hdma_i2c1_tx.Init.Channel = DMA_CHANNEL_1;
hdma_i2c1_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
hdma_i2c1_tx.Init.PeriphInc = DMA_PINC_DISABLE;
hdma_i2c1_tx.Init.MemInc = DMA_MINC_ENABLE;
hdma_i2c1_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
hdma_i2c1_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
hdma_i2c1_tx.Init.Mode = DMA_NORMAL;
hdma_i2c1_tx.Init.Priority = DMA_PRIORITY_LOW;
hdma_i2c1_tx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
HAL_DMA_Init(&hdma_i2c1_tx);
__HAL_LINKDMA(hi2c,hdmatx,hdma_i2c1_tx);
/* USER CODE BEGIN I2C1_MspInit 1 */
/* USER CODE END I2C1_MspInit 1 */
}
else if(hi2c->Instance==I2C3)
{
/* USER CODE BEGIN I2C3_MspInit 0 */
/* USER CODE END I2C3_MspInit 0 */
/**I2C3 GPIO Configuration
PC9 ------> I2C3_SDA
PA8 ------> I2C3_SCL
*/
GPIO_InitStruct.Pin = GPIO_PIN_9;
GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF4_I2C3;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_8;
GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
GPIO_InitStruct.Pull = GPIO_PULLUP;
GPIO_InitStruct.Speed = GPIO_SPEED_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF4_I2C3;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
/* Peripheral clock enable */
__I2C3_CLK_ENABLE();
/* Peripheral DMA init*/
hdma_i2c3_tx.Instance = DMA1_Stream4;
hdma_i2c3_tx.Init.Channel = DMA_CHANNEL_3;
hdma_i2c3_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
hdma_i2c3_tx.Init.PeriphInc = DMA_PINC_DISABLE;
hdma_i2c3_tx.Init.MemInc = DMA_MINC_ENABLE;
hdma_i2c3_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
hdma_i2c3_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
hdma_i2c3_tx.Init.Mode = DMA_NORMAL;
hdma_i2c3_tx.Init.Priority = DMA_PRIORITY_MEDIUM;
hdma_i2c3_tx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
HAL_DMA_Init(&hdma_i2c3_tx);
__HAL_LINKDMA(hi2c,hdmatx,hdma_i2c3_tx);
hdma_i2c3_rx.Instance = DMA1_Stream2;
hdma_i2c3_rx.Init.Channel = DMA_CHANNEL_3;
hdma_i2c3_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
hdma_i2c3_rx.Init.PeriphInc = DMA_PINC_DISABLE;
hdma_i2c3_rx.Init.MemInc = DMA_MINC_ENABLE;
hdma_i2c3_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
hdma_i2c3_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
hdma_i2c3_rx.Init.Mode = DMA_NORMAL;
hdma_i2c3_rx.Init.Priority = DMA_PRIORITY_MEDIUM;
hdma_i2c3_rx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
HAL_DMA_Init(&hdma_i2c3_rx);
__HAL_LINKDMA(hi2c,hdmarx,hdma_i2c3_rx);
/* USER CODE BEGIN I2C3_MspInit 1 */
/* USER CODE END I2C3_MspInit 1 */
}
}
void cHAL::Init(void) {
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
__HAL_RCC_GPIOC_CLK_ENABLE();
__HAL_RCC_CAN2_CLK_ENABLE();
__HAL_RCC_CAN1_CLK_ENABLE();
__HAL_RCC_USART3_CLK_ENABLE();
__HAL_RCC_UART4_CLK_ENABLE();
GPIO_InitTypeDef gi;
HAL_StatusTypeDef status;
//Enable UART
gi.Pin = GPIO_PIN_10 | GPIO_PIN_11; //C10=TX, C11=RX
gi.Mode = GPIO_MODE_AF_PP;
gi.Pull = GPIO_PULLUP;
gi.Speed = GPIO_SPEED_LOW;
gi.Alternate = GPIO_AF7_USART3;
HAL_GPIO_Init(GPIOC, &gi);
InitAndTestUSART();
//Onboard LEDs
gi.Mode = GPIO_MODE_OUTPUT_PP;
gi.Alternate = 0;
gi.Pull = GPIO_NOPULL;
gi.Speed = GPIO_SPEED_LOW;
gi.Pin = GPIO_PIN_7;
HAL_GPIO_Init(GPIOB, &gi);
LOGI(BSP::SUCCESSFUL_STRING, "GPIO for LED");
if(InitDWTCounter())
{
LOGI(BSP::SUCCESSFUL_STRING, "DWTCounter");
}
else
{
LOGE(NOT_SUCCESSFUL_STRING, "DWTCounter");
}
//MP3-Player
gi.Pin = GPIO_PIN_0 | GPIO_PIN_1; //A0=USART4_TX, A1=USART4_RX, Kerbe nach oben; ansicht von Pinseite, rechts von oben
//VCC, RX, TX, DACR, DACL, SPK1, GND, SPK2
//Also: PA0 --> RX
gi.Mode = GPIO_MODE_AF_PP;
gi.Pull = GPIO_PULLUP;
gi.Speed = GPIO_SPEED_LOW;
gi.Alternate = GPIO_AF8_UART4;
HAL_GPIO_Init(GPIOA, &gi);
BELL.Instance = UART4;
BELL.Init.BaudRate = 9600;
BELL.Init.WordLength = UART_WORDLENGTH_8B;
BELL.Init.StopBits = UART_STOPBITS_1;
BELL.Init.Parity = UART_PARITY_NONE;
BELL.Init.Mode = UART_MODE_TX_RX;
BELL.Init.HwFlowCtl = UART_HWCONTROL_NONE;
BELL.Init.OverSampling = UART_OVERSAMPLING_16;
HAL_UART_Init(&BSP::BELL);
LOGI(SUCCESSFUL_STRING, "UART4 for MP3-Module");
__I2C1_CLK_ENABLE();
__I2C2_CLK_ENABLE();
/*
PB08 ------> I2C1_SCL
PB09 ------> I2C1_SDA
*/
gi.Pin = GPIO_PIN_8 | GPIO_PIN_9;
gi.Mode = GPIO_MODE_AF_OD;
gi.Pull = GPIO_PULLUP;
gi.Speed = GPIO_SPEED_MEDIUM;
gi.Alternate = GPIO_AF4_I2C1;
HAL_GPIO_Init(GPIOB, &gi);
/*
PB10 ------> I2C2_SCL
PB11 ------> I2C2_SDA
*/
gi.Pin = GPIO_PIN_10 | GPIO_PIN_11;
gi.Mode = GPIO_MODE_AF_OD;
gi.Pull = GPIO_PULLUP;
gi.Speed = GPIO_SPEED_MEDIUM;
gi.Alternate = GPIO_AF4_I2C2;
HAL_GPIO_Init(GPIOB, &gi);
i2cbus[0].Instance = I2C1;
i2cbus[0].Init.ClockSpeed = 100000;
i2cbus[0].Init.DutyCycle = I2C_DUTYCYCLE_2;
i2cbus[0].Init.OwnAddress1 = 0;
i2cbus[0].Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
i2cbus[0].Init.DualAddressMode = I2C_DUALADDRESS_DISABLED;
i2cbus[0].Init.OwnAddress2 = 0;
i2cbus[0].Init.GeneralCallMode = I2C_GENERALCALL_DISABLED;
i2cbus[0].Init.NoStretchMode = I2C_NOSTRETCH_DISABLED;
HAL_I2C_Init(&i2cbus[0]);
LOGI("I2C1 configured for onboard digital io");
i2cbus[1].Instance = I2C2;
i2cbus[1].Init.ClockSpeed = 100000;
i2cbus[1].Init.DutyCycle = I2C_DUTYCYCLE_2;
i2cbus[1].Init.OwnAddress1 = 0;
i2cbus[1].Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
i2cbus[1].Init.DualAddressMode = I2C_DUALADDRESS_DISABLED;
i2cbus[1].Init.OwnAddress2 = 0;
i2cbus[1].Init.GeneralCallMode = I2C_GENERALCALL_DISABLED;
i2cbus[1].Init.NoStretchMode = I2C_NOSTRETCH_DISABLED;
HAL_I2C_Init(&BSP::i2c2);
LOGI(BSP::SUCCESSFUL_STRING, "I2C2 for 1wire and external");
if(drivers::cPCA9685::SoftwareReset(&BSP::i2c1))
{
LOGI(SUCCESSFUL_STRING, "i2c1 reset");
}
else
{
LOGE(NOT_SUCCESSFUL_STRING, "i2c1 reset");
}
if(pca9685_U7.Setup())//next to CPU, all A-Pins @ GND b01
{
LOGI(SUCCESSFUL_STRING, "pca9685_U7");
}
else
{
LOGE(NOT_SUCCESSFUL_STRING, "pca9685_U7");
}
if(pca9685_U9.Setup())
{
LOGI(SUCCESSFUL_STRING, "pca9685_U9");
}
else
{
LOGE(NOT_SUCCESSFUL_STRING, "pca9685_U9");
}
//Interrupt-Pins for PCA9555
gi.Pin = GPIO_PIN_0|GPIO_PIN_1;
gi.Mode = GPIO_MODE_INPUT;
gi.Pull = GPIO_PULLUP;
HAL_GPIO_Init(GPIOC, &gi);
if(pca9555_U19.Setup())
{
LOGI(BSP::SUCCESSFUL_STRING, "pca9555_U19");
}
else
{
LOGE(BSP::NOT_SUCCESSFUL_STRING, "pca9555_U19");
}
if(pca9555_U18.Setup())
{
LOGI(BSP::SUCCESSFUL_STRING, "pca9555_U18");
}
else
{
LOGE(BSP::NOT_SUCCESSFUL_STRING, "pca9555_U18");
}
uint16_t tmp = pca9555_U18.GetInput();
inputState[WORD_I2C] = (inputState[WORD_I2C] & 0xFFFF0000) + tmp;
tmp = pca9555_U19.GetInput();
inputState[WORD_I2C] = (inputState[WORD_I2C] & 0x0000FFFF) + (tmp << 16);
rcSwitch.enableReceive();
if(drivers::cPCA9685::SoftwareReset(&BSP::i2c2))
{
LOGI(SUCCESSFUL_STRING, "i2c2 reset");
}
else
{
LOGE(NOT_SUCCESSFUL_STRING, "i2c2 reset");
}
SearchI2C("I2C2", &i2c2);
Init1wire();
//Enable Rotary Encoder Switch Input
gi.Mode = GPIO_MODE_INPUT;
gi.Alternate = 0;
gi.Pull = GPIO_PULLUP;
gi.Speed = GPIO_SPEED_LOW;
gi.Pin = GPIO_PIN_13;
HAL_GPIO_Init(GPIOC, &gi);
LOGI(SUCCESSFUL_STRING, "GPIO for Rotary Encoder");
#ifdef DCF77
//DCF77
gi.Mode = GPIO_MODE_INPUT;
gi.Alternate=0;
gi.Pull=GPIO_PULLUP;
gi.Speed=GPIO_SPEED_FREQ_LOW;
gi.Pin=DCF77_PIN;
HAL_GPIO_Init(DCF77_PORT, &gi);
#endif
#endif
//=====PWM-Timers
//===============
//Overall GPIO-Settings
//All gpios enabled!
gi.Mode = GPIO_MODE_AF_PP;
gi.Pull = GPIO_NOPULL;
gi.Speed = GPIO_SPEED_HIGH;
//Overall base timer settings
TIM_HandleTypeDef TimHandle;
TimHandle.Init.Prescaler = 0;
TimHandle.Init.Period = UINT16_MAX;
TimHandle.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
TimHandle.Init.CounterMode = TIM_COUNTERMODE_UP;
//Overall OC-settings
TIM_OC_InitTypeDef sConfig;
sConfig.OCMode = TIM_OCMODE_PWM1;
sConfig.OCPolarity = TIM_OCPOLARITY_HIGH;
sConfig.OCNPolarity = TIM_OCNPOLARITY_HIGH;
sConfig.OCFastMode = TIM_OCFAST_DISABLE;
sConfig.OCIdleState = TIM_OCIDLESTATE_RESET;
sConfig.OCNIdleState = TIM_OCNIDLESTATE_RESET;
sConfig.Pulse = 0;
//===Slow Timers (84MHz) TIM4 and TIM12
//TIM1, TIM8 SystemCoreClock/1
//Others SystemCoreClock/2
//Prescaler (uint16_t) ((SystemCoreClock / 1 bzw 2) / TimerTickFrq) - 1;
//Einstellungen führen zu PWM-Frequenz von 116,5Hz (rechnerisch ermittelt, per LogicAnalyzer bestätigt)
#ifdef SENSACTHS07
TimHandle.Init.Prescaler = 10; //for 84MHz-Timers
__TIM12_CLK_ENABLE()
;
gi.Pin = GPIO_PIN_14 | GPIO_PIN_15;
gi.Alternate = GPIO_AF9_TIM12;
HAL_GPIO_Init(GPIOB, &gi);
TimHandle.Instance = TIM12;
HAL_TIM_PWM_Init(&TimHandle);
HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_1);
HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_2);
HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_1); //PB14 O1.1
HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_2); ///PB15 O1.2
CLEAR_BIT(TIM12->CCMR1, TIM_CCMR1_OC1PE);
CLEAR_BIT(TIM12->CCMR1, TIM_CCMR1_OC2PE);
LOGI(BSP::SUCCESSFUL_STRING, "TIM12");
//===Fast Timers (168MHz) TIM1 and TIM8
TimHandle.Init.Prescaler = 20;
__TIM8_CLK_ENABLE()
;
gi.Pin = GPIO_PIN_6 | GPIO_PIN_7 | GPIO_PIN_9;
gi.Alternate = GPIO_AF3_TIM8;
HAL_GPIO_Init(GPIOC, &gi);
TimHandle.Instance = TIM8;
HAL_TIM_PWM_Init(&TimHandle);
HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_1);
HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_2);
HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_4);
HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_1); //C6 O1.3
HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_2); //C7 O1.4
HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_4); //C9 O1.5
CLEAR_BIT(TIM8->CCMR1, TIM_CCMR1_OC1PE);
CLEAR_BIT(TIM8->CCMR1, TIM_CCMR1_OC2PE);
CLEAR_BIT(TIM8->CCMR2, TIM_CCMR2_OC4PE);
LOGI(SUCCESSFUL_STRING, "TIM8");
__TIM1_CLK_ENABLE()
;
gi.Pin = GPIO_PIN_8|GPIO_PIN_9|GPIO_PIN_10;
gi.Alternate = GPIO_AF1_TIM1;
HAL_GPIO_Init(GPIOA, &gi);
TimHandle.Instance = TIM1;
TIM_ClockConfigTypeDef sClockSourceConfig;
TIM_MasterConfigTypeDef sMasterConfig;
TIM_BreakDeadTimeConfigTypeDef sBreakDeadTimeConfig;
HAL_TIM_Base_Init(&TimHandle);
sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
HAL_TIM_ConfigClockSource(&TimHandle, &sClockSourceConfig);
HAL_TIM_PWM_Init(&TimHandle);
sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
HAL_TIMEx_MasterConfigSynchronization(&TimHandle, &sMasterConfig);
sBreakDeadTimeConfig.OffStateRunMode = TIM_OSSR_DISABLE;
sBreakDeadTimeConfig.OffStateIDLEMode = TIM_OSSI_DISABLE;
sBreakDeadTimeConfig.LockLevel = TIM_LOCKLEVEL_OFF;
sBreakDeadTimeConfig.DeadTime = 0;
sBreakDeadTimeConfig.BreakState = TIM_BREAK_DISABLE;
sBreakDeadTimeConfig.BreakPolarity = TIM_BREAKPOLARITY_HIGH;
sBreakDeadTimeConfig.AutomaticOutput = TIM_AUTOMATICOUTPUT_DISABLE;
HAL_TIMEx_ConfigBreakDeadTime(&TimHandle, &sBreakDeadTimeConfig);
HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_1);
HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_2);
HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_3);
HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_1); //A8 O1.6
HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_2); //A9 O1.7
HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_3); //A10 O1.8
CLEAR_BIT(TIM1->CCMR1, TIM_CCMR1_OC1PE);
CLEAR_BIT(TIM1->CCMR1, TIM_CCMR1_OC2PE);
CLEAR_BIT(TIM1->CCMR2, TIM_CCMR2_OC3PE);
LOGI(SUCCESSFUL_STRING, "TIM1");
#endif
#ifdef SENSACTHS04
TimHandle.Init.Prescaler = 10; //for 84MHz-Timers
__TIM4_CLK_ENABLE();
gi.Pin = GPIO_PIN_6 | GPIO_PIN_7 | GPIO_PIN_8 | GPIO_PIN_9;
gi.Alternate = GPIO_AF2_TIM4;
HAL_GPIO_Init(GPIOB, &gi);
TimHandle.Instance = TIM4;
HAL_TIM_PWM_Init(&TimHandle);
HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_1);
HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_2);
HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_3);
HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_4);
HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_1); //PB6 o2.1
HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_2); //PB7 o2.2
HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_3); //PB8 o1.1
HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_4); //PB9 o1.2
TIM4->CCMR1 &= ~TIM_CCMR1_OC1PE;
TIM4->CCMR1 &= ~TIM_CCMR1_OC2PE;
TIM4->CCMR2 &= ~TIM_CCMR2_OC3PE;
TIM4->CCMR2 &= ~TIM_CCMR2_OC4PE;
LOGI(SUCCESSFUL_STRING, "TIM4");
__TIM12_CLK_ENABLE();
gi.Pin = GPIO_PIN_14 | GPIO_PIN_15;
gi.Alternate = GPIO_AF9_TIM12;
HAL_GPIO_Init(GPIOB, &gi);
TimHandle.Instance = TIM12;
HAL_TIM_PWM_Init(&TimHandle);
HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_1);
HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_2);
HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_1); //PB14 O7.2
HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_2); ///PB15 O4.1
TIM12->CCMR1 &= ~TIM_CCMR1_OC1PE;
TIM12->CCMR1 &= ~TIM_CCMR1_OC2PE;
LOGI(SUCCESSFUL_STRING, "TIM12");
//===Fast Timers (168MHz) TIM1 and TIM8
TimHandle.Init.Prescaler = 20;
__TIM1_CLK_ENABLE();
gi.Pin = GPIO_PIN_8;
gi.Alternate = GPIO_AF1_TIM1;
HAL_GPIO_Init(GPIOA, &gi);
TimHandle.Instance = TIM1;
HAL_TIM_PWM_Init(&TimHandle);
HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_1);
HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_3);
HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_1);
HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_3);
TIM1->CCMR1 &= ~TIM_CCMR1_OC1PE;
TIM1->CCMR2 &= ~TIM_CCMR2_OC3PE;
LOGI(SUCCESSFUL_STRING, "TIM1");
__TIM8_CLK_ENABLE();
gi.Pin = GPIO_PIN_6 | GPIO_PIN_7 | GPIO_PIN_9;
gi.Alternate = GPIO_AF3_TIM8;
HAL_GPIO_Init(GPIOC, &gi);
TimHandle.Instance = TIM8;
HAL_TIM_PWM_Init(&TimHandle);
HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_1);
HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_2);
HAL_TIM_PWM_ConfigChannel(&TimHandle, &sConfig, TIM_CHANNEL_4);
HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_1);
HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_2);
HAL_TIM_PWM_Start(&TimHandle, TIM_CHANNEL_4);
TIM8->CCMR1 &= ~TIM_CCMR1_OC1PE;
TIM8->CCMR1 &= ~TIM_CCMR1_OC2PE;
TIM8->CCMR2 &= ~TIM_CCMR2_OC4PE;
LOGI(SUCCESSFUL_STRING, "TIM8");
#endif
//===SPI for Relais
//PA15=LATCH,PB3=CLK PB4=MISO, PB5=MOSI
//DRV8066 DIN=2, CLK(low@inak)=3, Latch@pos edge=4
__SPI3_CLK_ENABLE()
;
gi.Pin = GPIO_PIN_3 | GPIO_PIN_4 | GPIO_PIN_5;
gi.Mode = GPIO_MODE_AF_PP;
gi.Pull = GPIO_NOPULL;
gi.Speed = GPIO_SPEED_HIGH;
gi.Alternate = GPIO_AF6_SPI3;
HAL_GPIO_Init(GPIOB, &gi);
#ifdef SENSACTHS07
BSP::spi.Init.DataSize = SPI_DATASIZE_8BIT;
HAL_GPIO_WritePin(GPIOC, GPIO_PIN_14, GPIO_PIN_SET);
gi.Pin = GPIO_PIN_14;
gi.Mode = GPIO_MODE_OUTPUT_PP;
gi.Pull = GPIO_NOPULL;
gi.Speed = GPIO_SPEED_MEDIUM;
HAL_GPIO_Init(GPIOC, &gi);
#endif
#ifdef SENSACTHS04
BSP::spi.Init.DataSize = SPI_DATASIZE_16BIT;
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_15, GPIO_PIN_SET);
gi.Pin = GPIO_PIN_15;
gi.Mode = GPIO_MODE_OUTPUT_PP;
gi.Pull = GPIO_NOPULL;
gi.Speed = GPIO_SPEED_MEDIUM;
HAL_GPIO_Init(GPIOA, &gi);
#endif
BSP::spi.Instance = SPI3;
BSP::spi.Init.Mode = SPI_MODE_MASTER;
BSP::spi.Init.Direction = SPI_DIRECTION_2LINES;
BSP::spi.Init.CLKPolarity = SPI_POLARITY_LOW;
BSP::spi.Init.CLKPhase = SPI_PHASE_1EDGE;
BSP::spi.Init.NSS = SPI_NSS_SOFT;
BSP::spi.Init.BaudRatePrescaler = SPI_BAUDRATEPRESCALER_128;
BSP::spi.Init.FirstBit = SPI_FIRSTBIT_MSB;
BSP::spi.Init.TIMode = SPI_TIMODE_DISABLED;
BSP::spi.Init.CRCCalculation = SPI_CRCCALCULATION_DISABLED;
BSP::spi.Init.CRCPolynomial = 1;
status = HAL_SPI_Init(&BSP::spi);
if (status != HAL_OK) {
LOGE("Unable to configure SPI for Relays");
while(1) {};
}
uint8_t tx[] = {0, 0, 0};
#ifdef SENSACTHS07
HAL_GPIO_WritePin(GPIOC, GPIO_PIN_14, GPIO_PIN_RESET);
HAL_SPI_Transmit(&BSP::spi, tx, 3, 100);
HAL_GPIO_WritePin(GPIOC, GPIO_PIN_14, GPIO_PIN_SET);
LOGI(SUCCESSFUL_STRING, "SPI for DRV8860");
#endif
#ifdef SENSACTHS04
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_15, GPIO_PIN_RESET);
if (HAL_SPI_Transmit(&BSP::spi, tx, 1, 100) == HAL_OK) {
LOGI(SUCCESSFUL_STRING, "SPI for DRV8860");
}
else
{
LOGE(NOT_SUCCESSFUL_STRING, "SPI for DRV8860");
}
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_15, GPIO_PIN_SET);
#endif
/**CAN2 GPIO Configuration
PB12 ------> CAN2_RX
PB13 ------> CAN2_TX
*/
gi.Pin = GPIO_PIN_12 | GPIO_PIN_13;
gi.Mode = GPIO_MODE_AF_PP;
gi.Pull = GPIO_NOPULL;
gi.Speed = GPIO_SPEED_LOW;
gi.Alternate = GPIO_AF9_CAN2;
HAL_GPIO_Init(GPIOB, &gi);
InitCAN();
return;
}
