initial commitHEADmaster

1 files changed, 250 insertions, 0 deletions

diff --git a/Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_ll_i2c.c b/Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_ll_i2c.c
new file mode 100644
index 0000000..9bbfdc2
--- /dev/null
+++ b/Drivers/STM32H7xx_HAL_Driver/Src/stm32h7xx_ll_i2c.c
@@ -0,0 +1,250 @@
+/**

+  ******************************************************************************

+  * @file    stm32h7xx_ll_i2c.c

+  * @author  MCD Application Team

+  * @brief   I2C LL module driver.

+  ******************************************************************************

+  * @attention

+  *

+  * Copyright (c) 2017 STMicroelectronics.

+  * All rights reserved.

+  *

+  * This software is licensed under terms that can be found in the LICENSE file

+  * in the root directory of this software component.

+  * If no LICENSE file comes with this software, it is provided AS-IS.

+  *

+  ******************************************************************************

+  */

+#if defined(USE_FULL_LL_DRIVER)

+

+/* Includes ------------------------------------------------------------------*/

+#include "stm32h7xx_ll_i2c.h"

+#include "stm32h7xx_ll_bus.h"

+#ifdef  USE_FULL_ASSERT

+#include "stm32_assert.h"

+#else

+#define assert_param(expr) ((void)0U)

+#endif /* USE_FULL_ASSERT */

+

+/** @addtogroup STM32H7xx_LL_Driver

+  * @{

+  */

+

+#if defined (I2C1) || defined (I2C2) || defined (I2C3) || defined (I2C4) || defined (I2C5)

+

+/** @defgroup I2C_LL I2C

+  * @{

+  */

+

+/* Private types -------------------------------------------------------------*/

+/* Private variables ---------------------------------------------------------*/

+/* Private constants ---------------------------------------------------------*/

+/* Private macros ------------------------------------------------------------*/

+/** @addtogroup I2C_LL_Private_Macros

+  * @{

+  */

+

+#define IS_LL_I2C_PERIPHERAL_MODE(__VALUE__)    (((__VALUE__) == LL_I2C_MODE_I2C)          || \

+                                                 ((__VALUE__) == LL_I2C_MODE_SMBUS_HOST)   || \

+                                                 ((__VALUE__) == LL_I2C_MODE_SMBUS_DEVICE) || \

+                                                 ((__VALUE__) == LL_I2C_MODE_SMBUS_DEVICE_ARP))

+

+#define IS_LL_I2C_ANALOG_FILTER(__VALUE__)      (((__VALUE__) == LL_I2C_ANALOGFILTER_ENABLE) || \

+                                                 ((__VALUE__) == LL_I2C_ANALOGFILTER_DISABLE))

+

+#define IS_LL_I2C_DIGITAL_FILTER(__VALUE__)     ((__VALUE__) <= 0x0000000FU)

+

+#define IS_LL_I2C_OWN_ADDRESS1(__VALUE__)       ((__VALUE__) <= 0x000003FFU)

+

+#define IS_LL_I2C_TYPE_ACKNOWLEDGE(__VALUE__)   (((__VALUE__) == LL_I2C_ACK) || \

+                                                 ((__VALUE__) == LL_I2C_NACK))

+

+#define IS_LL_I2C_OWN_ADDRSIZE(__VALUE__)       (((__VALUE__) == LL_I2C_OWNADDRESS1_7BIT) || \

+                                                 ((__VALUE__) == LL_I2C_OWNADDRESS1_10BIT))

+/**

+  * @}

+  */

+

+/* Private function prototypes -----------------------------------------------*/

+

+/* Exported functions --------------------------------------------------------*/

+/** @addtogroup I2C_LL_Exported_Functions

+  * @{

+  */

+

+/** @addtogroup I2C_LL_EF_Init

+  * @{

+  */

+

+/**

+  * @brief  De-initialize the I2C registers to their default reset values.

+  * @param  I2Cx I2C Instance.

+  * @retval An ErrorStatus enumeration value:

+  *          - SUCCESS: I2C registers are de-initialized

+  *          - ERROR: I2C registers are not de-initialized

+  */

+ErrorStatus LL_I2C_DeInit(I2C_TypeDef *I2Cx)

+{

+  ErrorStatus status = SUCCESS;

+

+  /* Check the I2C Instance I2Cx */

+  assert_param(IS_I2C_ALL_INSTANCE(I2Cx));

+

+  if (I2Cx == I2C1)

+  {

+    /* Force reset of I2C clock */

+    LL_APB1_GRP1_ForceReset(LL_APB1_GRP1_PERIPH_I2C1);

+

+    /* Release reset of I2C clock */

+    LL_APB1_GRP1_ReleaseReset(LL_APB1_GRP1_PERIPH_I2C1);

+  }

+  else if (I2Cx == I2C2)

+  {

+    /* Force reset of I2C clock */

+    LL_APB1_GRP1_ForceReset(LL_APB1_GRP1_PERIPH_I2C2);

+

+    /* Release reset of I2C clock */

+    LL_APB1_GRP1_ReleaseReset(LL_APB1_GRP1_PERIPH_I2C2);

+

+  }

+  else if (I2Cx == I2C3)

+  {

+    /* Force reset of I2C clock */

+    LL_APB1_GRP1_ForceReset(LL_APB1_GRP1_PERIPH_I2C3);

+

+    /* Release reset of I2C clock */

+    LL_APB1_GRP1_ReleaseReset(LL_APB1_GRP1_PERIPH_I2C3);

+  }

+  else if (I2Cx == I2C4)

+  {

+    /* Force reset of I2C clock */

+    LL_APB4_GRP1_ForceReset(LL_APB4_GRP1_PERIPH_I2C4);

+

+    /* Release reset of I2C clock */

+    LL_APB4_GRP1_ReleaseReset(LL_APB4_GRP1_PERIPH_I2C4);

+  }

+#if defined(I2C5)

+  else if (I2Cx == I2C5)

+  {

+    /* Force reset of I2C clock */

+    LL_APB1_GRP1_ForceReset(LL_APB1_GRP1_PERIPH_I2C5);

+

+    /* Release reset of I2C clock */

+    LL_APB1_GRP1_ReleaseReset(LL_APB1_GRP1_PERIPH_I2C5);

+  }

+#endif /* I2C5 */

+  else

+  {

+    status = ERROR;

+  }

+

+  return status;

+}

+

+/**

+  * @brief  Initialize the I2C registers according to the specified parameters in I2C_InitStruct.

+  * @param  I2Cx I2C Instance.

+  * @param  I2C_InitStruct pointer to a @ref LL_I2C_InitTypeDef structure.

+  * @retval An ErrorStatus enumeration value:

+  *          - SUCCESS: I2C registers are initialized

+  *          - ERROR: Not applicable

+  */

+ErrorStatus LL_I2C_Init(I2C_TypeDef *I2Cx, LL_I2C_InitTypeDef *I2C_InitStruct)

+{

+  /* Check the I2C Instance I2Cx */

+  assert_param(IS_I2C_ALL_INSTANCE(I2Cx));

+

+  /* Check the I2C parameters from I2C_InitStruct */

+  assert_param(IS_LL_I2C_PERIPHERAL_MODE(I2C_InitStruct->PeripheralMode));

+  assert_param(IS_LL_I2C_ANALOG_FILTER(I2C_InitStruct->AnalogFilter));

+  assert_param(IS_LL_I2C_DIGITAL_FILTER(I2C_InitStruct->DigitalFilter));

+  assert_param(IS_LL_I2C_OWN_ADDRESS1(I2C_InitStruct->OwnAddress1));

+  assert_param(IS_LL_I2C_TYPE_ACKNOWLEDGE(I2C_InitStruct->TypeAcknowledge));

+  assert_param(IS_LL_I2C_OWN_ADDRSIZE(I2C_InitStruct->OwnAddrSize));

+

+  /* Disable the selected I2Cx Peripheral */

+  LL_I2C_Disable(I2Cx);

+

+  /*---------------------------- I2Cx CR1 Configuration ------------------------

+   * Configure the analog and digital noise filters with parameters :

+   * - AnalogFilter: I2C_CR1_ANFOFF bit

+   * - DigitalFilter: I2C_CR1_DNF[3:0] bits

+   */

+  LL_I2C_ConfigFilters(I2Cx, I2C_InitStruct->AnalogFilter, I2C_InitStruct->DigitalFilter);

+

+  /*---------------------------- I2Cx TIMINGR Configuration --------------------

+   * Configure the SDA setup, hold time and the SCL high, low period with parameter :

+   * - Timing: I2C_TIMINGR_PRESC[3:0], I2C_TIMINGR_SCLDEL[3:0], I2C_TIMINGR_SDADEL[3:0],

+   *           I2C_TIMINGR_SCLH[7:0] and I2C_TIMINGR_SCLL[7:0] bits

+   */

+  LL_I2C_SetTiming(I2Cx, I2C_InitStruct->Timing);

+

+  /* Enable the selected I2Cx Peripheral */

+  LL_I2C_Enable(I2Cx);

+

+  /*---------------------------- I2Cx OAR1 Configuration -----------------------

+   * Disable, Configure and Enable I2Cx device own address 1 with parameters :

+   * - OwnAddress1:  I2C_OAR1_OA1[9:0] bits

+   * - OwnAddrSize:  I2C_OAR1_OA1MODE bit

+   */

+  LL_I2C_DisableOwnAddress1(I2Cx);

+  LL_I2C_SetOwnAddress1(I2Cx, I2C_InitStruct->OwnAddress1, I2C_InitStruct->OwnAddrSize);

+

+  /* OwnAdress1 == 0 is reserved for General Call address */

+  if (I2C_InitStruct->OwnAddress1 != 0U)

+  {

+    LL_I2C_EnableOwnAddress1(I2Cx);

+  }

+

+  /*---------------------------- I2Cx MODE Configuration -----------------------

+  * Configure I2Cx peripheral mode with parameter :

+   * - PeripheralMode: I2C_CR1_SMBDEN and I2C_CR1_SMBHEN bits

+   */

+  LL_I2C_SetMode(I2Cx, I2C_InitStruct->PeripheralMode);

+

+  /*---------------------------- I2Cx CR2 Configuration ------------------------

+   * Configure the ACKnowledge or Non ACKnowledge condition

+   * after the address receive match code or next received byte with parameter :

+   * - TypeAcknowledge: I2C_CR2_NACK bit

+   */

+  LL_I2C_AcknowledgeNextData(I2Cx, I2C_InitStruct->TypeAcknowledge);

+

+  return SUCCESS;

+}

+

+/**

+  * @brief  Set each @ref LL_I2C_InitTypeDef field to default value.

+  * @param  I2C_InitStruct Pointer to a @ref LL_I2C_InitTypeDef structure.

+  * @retval None

+  */

+void LL_I2C_StructInit(LL_I2C_InitTypeDef *I2C_InitStruct)

+{

+  /* Set I2C_InitStruct fields to default values */

+  I2C_InitStruct->PeripheralMode  = LL_I2C_MODE_I2C;

+  I2C_InitStruct->Timing          = 0U;

+  I2C_InitStruct->AnalogFilter    = LL_I2C_ANALOGFILTER_ENABLE;

+  I2C_InitStruct->DigitalFilter   = 0U;

+  I2C_InitStruct->OwnAddress1     = 0U;

+  I2C_InitStruct->TypeAcknowledge = LL_I2C_NACK;

+  I2C_InitStruct->OwnAddrSize     = LL_I2C_OWNADDRESS1_7BIT;

+}

+

+/**

+  * @}

+  */

+

+/**

+  * @}

+  */

+

+/**

+  * @}

+  */

+

+#endif /* I2C1 || I2C2 || I2C3 || I2C4  || I2C5 */

+

+/**

+  * @}

+  */

+

+#endif /* USE_FULL_LL_DRIVER */