|
|
@@ -16,7 +16,7 @@
|
|
|
* CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
|
|
|
*
|
|
|
* <h2><center>© COPYRIGHT 2016 HOLOCENE</center></h2>
|
|
|
-*/
|
|
|
+*/
|
|
|
|
|
|
/* Includes ------------------------------------------------------------------*/
|
|
|
#include "HAL_i2c.h"
|
|
|
@@ -27,10 +27,10 @@
|
|
|
* @{
|
|
|
*/
|
|
|
|
|
|
-/** @defgroup I2C
|
|
|
+/** @defgroup I2C
|
|
|
* @brief I2C driver modules
|
|
|
* @{
|
|
|
-*/
|
|
|
+*/
|
|
|
|
|
|
/** @defgroup I2C_Private_TypesDefinitions
|
|
|
* @{
|
|
|
@@ -44,7 +44,7 @@
|
|
|
* @{
|
|
|
*/
|
|
|
|
|
|
-/*I2c Enable disable*/
|
|
|
+/*I2c Enable disable*/
|
|
|
#define IC_ENABLE_Reset ((uint16_t)0xFFFE)
|
|
|
#define IC_ENABLE_Set ((uint16_t)0x0001)
|
|
|
#define IC_CON_RESET ((uint16_t)0xFE8A)
|
|
|
@@ -68,7 +68,7 @@
|
|
|
#define IC_TAR_ENDUAL_Set ((uint16_t)0x1000)
|
|
|
#define IC_TAR_ENDUAL_Reset ((uint16_t)0xEFFF)
|
|
|
|
|
|
-/* I2C SPECIAL、GC_OR_START bits mask */
|
|
|
+/* I2C SPECIAL銆丟C_OR_START bits mask */
|
|
|
#define IC_TAR_GC_Set ((uint16_t)0x0800)
|
|
|
#define IC_TAR_GC_Reset ((uint16_t)0xF7FF)
|
|
|
|
|
|
@@ -78,10 +78,10 @@
|
|
|
//static
|
|
|
uint8_t I2C_CMD_DIR = 0;
|
|
|
|
|
|
-/*新增加的用户变量，外部调用时需要更新该变量值*/
|
|
|
-uint16_t I2C_DMA_DIR = 0;
|
|
|
+/*鏂板�鍔犵殑鐢ㄦ埛鍙橀噺锛屽�閮ㄨ皟鐢ㄦ椂闇€瑕佹洿鏂拌�鍙橀噺鍊�*/
|
|
|
+uint16_t I2C_DMA_DIR = 0;
|
|
|
|
|
|
-/**
|
|
|
+/**
|
|
|
* @}
|
|
|
*/
|
|
|
|
|
|
@@ -131,14 +131,14 @@ void I2C_DeInit(I2C_TypeDef* I2Cx)
|
|
|
/* Release I2C1 from reset state */
|
|
|
RCC_APB1PeriphResetCmd(RCC_APB1Periph_I2C1, DISABLE);
|
|
|
break;
|
|
|
-
|
|
|
+
|
|
|
default:
|
|
|
break;
|
|
|
}
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
-* @brief Initializes the I2Cx peripheral according to the specified
|
|
|
+* @brief Initializes the I2Cx peripheral according to the specified
|
|
|
* parameters in the I2C_InitStruct.
|
|
|
* @param I2Cx: where x can be 1 or 2 to select the I2C peripheral.
|
|
|
* @param I2C_InitStruct: pointer to a I2C_InitTypeDef structure that
|
|
|
@@ -148,7 +148,7 @@ void I2C_DeInit(I2C_TypeDef* I2Cx)
|
|
|
*/
|
|
|
void I2C_Init(I2C_TypeDef* I2Cx, I2C_InitTypeDef* I2C_InitStruct)
|
|
|
{
|
|
|
-
|
|
|
+
|
|
|
uint16_t tmpreg = 0;
|
|
|
uint32_t pclk1 = 8000000;
|
|
|
uint32_t minSclLowTime = 0;
|
|
|
@@ -162,25 +162,25 @@ void I2C_Init(I2C_TypeDef* I2Cx, I2C_InitTypeDef* I2C_InitStruct)
|
|
|
/*---------------------------- I2Cx IC_ENABLE Configuration ------------------------*/
|
|
|
/* Disable the selected I2C peripheral */
|
|
|
I2Cx->IC_ENABLE &= IC_ENABLE_Reset;
|
|
|
-
|
|
|
+
|
|
|
/* Get pclk1 frequency value */
|
|
|
RCC_GetClocksFreq(&rcc_clocks);
|
|
|
pclk1 = rcc_clocks.PCLK1_Frequency;
|
|
|
|
|
|
/* Set pclk1 period value */
|
|
|
pclk1Period = 1000000000/pclk1;
|
|
|
-
|
|
|
+
|
|
|
i2cPeriod = 1000000000/I2C_InitStruct->I2C_ClockSpeed; //ns unit
|
|
|
tmpreg = 0;
|
|
|
-
|
|
|
+
|
|
|
/*Get the I2Cx IC_CON value */
|
|
|
tmpreg = I2Cx->IC_CON;
|
|
|
/*Clear TX_EMPTY_CTRL,IC_SLAVE_DISABLE,IC_RESTART_EN,IC_10BITADDR_SLAVE,SPEED,MASTER_MODE bits*/
|
|
|
tmpreg &= IC_CON_RESET;
|
|
|
-
|
|
|
+
|
|
|
/* Configure speed in standard mode */
|
|
|
if (I2C_InitStruct->I2C_ClockSpeed <= 100000)
|
|
|
- {
|
|
|
+ {
|
|
|
minSclLowTime = i2cPeriod/pclk1Period;
|
|
|
I2Cx->IC_SS_SCL_LCNT = minSclLowTime/2;
|
|
|
I2Cx->IC_SS_SCL_HCNT = minSclLowTime - I2Cx->IC_SS_SCL_LCNT;
|
|
|
@@ -193,13 +193,13 @@ void I2C_Init(I2C_TypeDef* I2Cx, I2C_InitTypeDef* I2C_InitStruct)
|
|
|
I2Cx->IC_FS_SCL_HCNT = minSclLowTime - I2Cx->IC_FS_SCL_LCNT;
|
|
|
I2C_InitStruct->I2C_Speed = I2C_Speed_FAST;
|
|
|
}
|
|
|
-
|
|
|
-
|
|
|
+
|
|
|
+
|
|
|
/*Set TX_EMPTY_CTRL,IC_SLAVE_DISABLE,IC_RESTART_EN,IC_10BITADDR_SLAVE,SPEED,MASTER_MODE bits*/
|
|
|
tmpreg = TX_EMPTY_CTRL | IC_SLAVE_DISABLE | IC_RESTART_EN |IC_7BITADDR_MASTER | I2C_InitStruct->I2C_Speed | I2C_InitStruct->I2C_Mode;
|
|
|
/* Write to I2Cx IC_CON */
|
|
|
I2Cx->IC_CON = tmpreg;
|
|
|
-
|
|
|
+
|
|
|
/*---------------------------- I2Cx IC_INTR_MASK Configuration ------------------------*/
|
|
|
/* Get the I2Cx IC_INTR_MASK value */
|
|
|
tmpreg = I2Cx->IC_INTR_MASK;
|
|
|
@@ -207,12 +207,12 @@ void I2C_Init(I2C_TypeDef* I2Cx, I2C_InitTypeDef* I2C_InitStruct)
|
|
|
tmpreg &= INTR_MASK;
|
|
|
/* Write to IC_INTR_MASK */
|
|
|
I2Cx->IC_INTR_MASK = tmpreg;
|
|
|
-
|
|
|
+
|
|
|
/* Write to IC_RX_TL */
|
|
|
I2Cx->IC_RX_TL = 0x0; //rxfifo depth is 1
|
|
|
/* Write to IC_TX_TL */
|
|
|
I2Cx->IC_TX_TL = 0x1; //tcfifo depth is 1
|
|
|
-
|
|
|
+
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
@@ -418,20 +418,20 @@ void I2C_GeneralCallCmd(I2C_TypeDef* I2Cx, FunctionalState NewState)
|
|
|
* @brief Enables or disables the specified I2C interrupts.
|
|
|
* @param I2Cx: where x can be 1 or 2 to select the I2C peripheral.
|
|
|
* @param I2C_IT: specifies the I2C interrupts sources to be enabled
|
|
|
-* or disabled.
|
|
|
+* or disabled.
|
|
|
* This parameter can be any combination of the following values:
|
|
|
-* @arg I2C_IT_RX_UNDER: Rx Buffer is empty interrupt mask
|
|
|
-* @arg I2C_IT_RX_OVER : RX Buffer Overrun interrupt mask
|
|
|
-* @arg I2C_IT_RX_FULL : Rx buffer full interrupt mask
|
|
|
-* @arg I2C_IT_TX_OVER : TX Buffer Overrun interrupt mask
|
|
|
-* @arg I2C_IT_TX_EMPTY : TX_FIFO empty interrupt mask
|
|
|
-* @arg I2C_IT_RD_REQ : I2C work as slave or master interrupt mask
|
|
|
-* @arg I2C_IT_TX_ABRT : TX error interrupt mask(Master mode)
|
|
|
-* @arg I2C_IT_RX_DONE : Master not ack interrupt mask(slave mode)
|
|
|
-* @arg I2C_IT_ACTIVITY : I2C activity interrupt mask
|
|
|
-* @arg I2C_IT_STOP_DET : stop condition interrupt mask
|
|
|
-* @arg I2C_IT_START_DET : start condition interrupt mask
|
|
|
-* @arg I2C_IT_GEN_CALL : a general call address and ack interrupt mask
|
|
|
+* @arg I2C_IT_RX_UNDER: Rx Buffer is empty interrupt mask
|
|
|
+* @arg I2C_IT_RX_OVER : RX Buffer Overrun interrupt mask
|
|
|
+* @arg I2C_IT_RX_FULL : Rx buffer full interrupt mask
|
|
|
+* @arg I2C_IT_TX_OVER : TX Buffer Overrun interrupt mask
|
|
|
+* @arg I2C_IT_TX_EMPTY : TX_FIFO empty interrupt mask
|
|
|
+* @arg I2C_IT_RD_REQ : I2C work as slave or master interrupt mask
|
|
|
+* @arg I2C_IT_TX_ABRT : TX error interrupt mask(Master mode)
|
|
|
+* @arg I2C_IT_RX_DONE : Master not ack interrupt mask(slave mode)
|
|
|
+* @arg I2C_IT_ACTIVITY : I2C activity interrupt mask
|
|
|
+* @arg I2C_IT_STOP_DET : stop condition interrupt mask
|
|
|
+* @arg I2C_IT_START_DET : start condition interrupt mask
|
|
|
+* @arg I2C_IT_GEN_CALL : a general call address and ack interrupt mask
|
|
|
* @param NewState: new state of the specified I2C interrupts.
|
|
|
* This parameter can be: ENABLE or DISABLE.
|
|
|
* @retval : None
|
|
|
@@ -442,12 +442,12 @@ void I2C_ITConfig(I2C_TypeDef* I2Cx, uint16_t I2C_IT, FunctionalState NewState)
|
|
|
assert_param(IS_I2C_ALL_PERIPH(I2Cx));
|
|
|
assert_param(IS_FUNCTIONAL_STATE(NewState));
|
|
|
assert_param(IS_I2C_CONFIG_IT(I2C_IT));
|
|
|
-
|
|
|
+
|
|
|
if(I2C_IT == I2C_IT_RX_FULL)
|
|
|
{
|
|
|
I2C1->IC_DATA_CMD = CMD_READ;
|
|
|
}
|
|
|
-
|
|
|
+
|
|
|
if (NewState != DISABLE)
|
|
|
{
|
|
|
/* Enable the selected I2C interrupts */
|
|
|
@@ -484,7 +484,7 @@ void I2C_ReadCmd(I2C_TypeDef* I2Cx)
|
|
|
{
|
|
|
/* Check the parameters */
|
|
|
assert_param(IS_I2C_ALL_PERIPH(I2Cx));
|
|
|
-
|
|
|
+
|
|
|
I2Cx->IC_DATA_CMD = CMD_READ;
|
|
|
}
|
|
|
|
|
|
@@ -507,7 +507,7 @@ uint8_t I2C_ReceiveData(I2C_TypeDef* I2Cx)
|
|
|
* @param I2Cx: where x can be 1 or 2 to select the I2C peripheral.
|
|
|
* @param Address: specifies the slave address which will be transmitted
|
|
|
* @param I2C_Direction: specifies whether the I2C device will be a
|
|
|
-* Transmitter or a Receiver.
|
|
|
+* Transmitter or a Receiver.
|
|
|
* This parameter can be one of the following values
|
|
|
* @arg I2C_Direction_Transmitter: Transmitter mode
|
|
|
* @arg I2C_Direction_Receiver: Receiver mode
|
|
|
@@ -547,7 +547,7 @@ uint32_t I2C_GetLastEvent(I2C_TypeDef* I2Cx)
|
|
|
assert_param(IS_I2C_ALL_PERIPH(I2Cx));
|
|
|
/* Read the I2Cx status register */
|
|
|
flag1 = I2Cx->IC_RAW_INTR_STAT;
|
|
|
-
|
|
|
+
|
|
|
/* Get the last event value from I2C status register */
|
|
|
lastevent = (flag1 ) & FLAG_Mask;
|
|
|
/* Return status */
|
|
|
@@ -560,20 +560,20 @@ uint32_t I2C_GetLastEvent(I2C_TypeDef* I2Cx)
|
|
|
* @brief Checks whether the last I2Cx Event is equal to the one passed
|
|
|
* as parameter.
|
|
|
* @param I2Cx: where x can be 1 or 2 to select the I2C peripheral.
|
|
|
-* @param I2C_EVENT: specifies the event to be checked.
|
|
|
+* @param I2C_EVENT: specifies the event to be checked.
|
|
|
* This parameter can be one of the following values:
|
|
|
-* @arg I2C_EVENT_RX_UNDER: Rx Buffer is empty event
|
|
|
-* @arg I2C_EVENT_RX_OVER : RX Buffer Overrun event
|
|
|
-* @arg I2C_EVENTT_RX_FULL : Rx buffer full event
|
|
|
-* @arg I2C_EVENT_TX_OVER : TX Buffer Overrun event
|
|
|
-* @arg I2C_EVENT_TX_EMPTY : TX_FIFO empty event
|
|
|
-* @arg I2C_EVENT_RD_REQ : I2C work as slave or master event
|
|
|
-* @arg I2C_EVENT_TX_ABRT : TX error event(Master mode)
|
|
|
-* @arg I2C_EVENT_RX_DONE : Master not ack event(slave mode)
|
|
|
-* @arg I2C_EVENT_ACTIVITY : I2C activity event
|
|
|
-* @arg I2C_EVENT_STOP_DET : stop condition event
|
|
|
-* @arg I2C_EVENT_START_DET : start condition event
|
|
|
-* @arg I2C_EVENT_GEN_CALL : a general call address and ack event
|
|
|
+* @arg I2C_EVENT_RX_UNDER: Rx Buffer is empty event
|
|
|
+* @arg I2C_EVENT_RX_OVER : RX Buffer Overrun event
|
|
|
+* @arg I2C_EVENTT_RX_FULL : Rx buffer full event
|
|
|
+* @arg I2C_EVENT_TX_OVER : TX Buffer Overrun event
|
|
|
+* @arg I2C_EVENT_TX_EMPTY : TX_FIFO empty event
|
|
|
+* @arg I2C_EVENT_RD_REQ : I2C work as slave or master event
|
|
|
+* @arg I2C_EVENT_TX_ABRT : TX error event(Master mode)
|
|
|
+* @arg I2C_EVENT_RX_DONE : Master not ack event(slave mode)
|
|
|
+* @arg I2C_EVENT_ACTIVITY : I2C activity event
|
|
|
+* @arg I2C_EVENT_STOP_DET : stop condition event
|
|
|
+* @arg I2C_EVENT_START_DET : start condition event
|
|
|
+* @arg I2C_EVENT_GEN_CALL : a general call address and ack event
|
|
|
* - SUCCESS: Last event is equal to the I2C_EVENT
|
|
|
* - ERROR: Last event is different from the I2C_EVENT
|
|
|
*/
|
|
|
@@ -585,7 +585,7 @@ ErrorStatus I2C_CheckEvent(I2C_TypeDef* I2Cx, uint32_t I2C_EVENT)
|
|
|
/* Check the parameters */
|
|
|
assert_param(IS_I2C_ALL_PERIPH(I2Cx));
|
|
|
assert_param(IS_I2C_EVENT(I2C_EVENT));
|
|
|
-
|
|
|
+
|
|
|
if((I2C_EVENT == I2C_EVENT_RX_FULL)&&(I2C_CMD_DIR==0))
|
|
|
{
|
|
|
I2C1->IC_DATA_CMD = CMD_READ;
|
|
|
@@ -596,7 +596,7 @@ ErrorStatus I2C_CheckEvent(I2C_TypeDef* I2Cx, uint32_t I2C_EVENT)
|
|
|
//flag1 = I2Cx->IC_INTR_STAT;
|
|
|
/* Get the last event value from I2C status register */
|
|
|
lastevent = (flag1 ) & I2C_EVENT;
|
|
|
-
|
|
|
+
|
|
|
/* Check whether the last event is equal to I2C_EVENT */
|
|
|
if (lastevent == I2C_EVENT )
|
|
|
//if((I2Cx->IC_RAW_INTR_STAT & I2C_EVENT) != (uint32_t)RESET)
|
|
|
@@ -611,26 +611,26 @@ ErrorStatus I2C_CheckEvent(I2C_TypeDef* I2Cx, uint32_t I2C_EVENT)
|
|
|
}
|
|
|
/* Return status */
|
|
|
return status;
|
|
|
-
|
|
|
+
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* @brief Checks whether the specified I2C flag is set or not.
|
|
|
* @param I2Cx: where x can be 1 or 2 to select the I2C peripheral.
|
|
|
-* @param I2C_FLAG: specifies the flag to check.
|
|
|
+* @param I2C_FLAG: specifies the flag to check.
|
|
|
* This parameter can be one of the following values:
|
|
|
-* @arg I2C_FLAG_RX_UNDER: Rx Buffer is empty flag
|
|
|
-* @arg I2C_FLAG_RX_OVER : RX Buffer Overrun flag
|
|
|
-* @arg I2C_FLAG_RX_FULL : Rx buffer full flag
|
|
|
-* @arg I2C_FLAG_TX_OVER : TX Buffer Overrun flag
|
|
|
-* @arg I2C_FLAG_TX_EMPTY: TX_FIFO empty flag
|
|
|
-* @arg I2C_FLAG_RD_REQ : I2C work as slave or master flag
|
|
|
-* @arg I2C_FLAG_TX_ABRT : TX error flag(Master mode)
|
|
|
-* @arg I2C_FLAG_RX_DONE : Master not ack flag(slave mode)
|
|
|
-* @arg I2C_FLAG_ACTIVITY: I2C activity flag
|
|
|
-* @arg I2C_FLAG_STOP_DET: stop condition flag
|
|
|
-* @arg I2C_FLAG_START_DET: start condition flag
|
|
|
-* @arg I2C_FLAG_GEN_CALL : a general call address and ack flag
|
|
|
+* @arg I2C_FLAG_RX_UNDER: Rx Buffer is empty flag
|
|
|
+* @arg I2C_FLAG_RX_OVER : RX Buffer Overrun flag
|
|
|
+* @arg I2C_FLAG_RX_FULL : Rx buffer full flag
|
|
|
+* @arg I2C_FLAG_TX_OVER : TX Buffer Overrun flag
|
|
|
+* @arg I2C_FLAG_TX_EMPTY: TX_FIFO empty flag
|
|
|
+* @arg I2C_FLAG_RD_REQ : I2C work as slave or master flag
|
|
|
+* @arg I2C_FLAG_TX_ABRT : TX error flag(Master mode)
|
|
|
+* @arg I2C_FLAG_RX_DONE : Master not ack flag(slave mode)
|
|
|
+* @arg I2C_FLAG_ACTIVITY: I2C activity flag
|
|
|
+* @arg I2C_FLAG_STOP_DET: stop condition flag
|
|
|
+* @arg I2C_FLAG_START_DET: start condition flag
|
|
|
+* @arg I2C_FLAG_GEN_CALL : a general call address and ack flag
|
|
|
* @retval : The new state of I2C_FLAG (SET or RESET).
|
|
|
*/
|
|
|
FlagStatus I2C_GetFlagStatus(I2C_TypeDef* I2Cx, uint32_t I2C_FLAG)
|
|
|
@@ -646,7 +646,7 @@ FlagStatus I2C_GetFlagStatus(I2C_TypeDef* I2Cx, uint32_t I2C_FLAG)
|
|
|
I2Cx->IC_DATA_CMD = CMD_READ;
|
|
|
I2C_CMD_DIR = 1;
|
|
|
}
|
|
|
-
|
|
|
+
|
|
|
/* Check the status of the specified I2C flag */
|
|
|
if((I2Cx->IC_RAW_INTR_STAT & I2C_FLAG) != (uint32_t)RESET)
|
|
|
{
|
|
|
@@ -658,7 +658,7 @@ FlagStatus I2C_GetFlagStatus(I2C_TypeDef* I2Cx, uint32_t I2C_FLAG)
|
|
|
/* I2C_FLAG is reset */
|
|
|
bitstatus = RESET;
|
|
|
}
|
|
|
-
|
|
|
+
|
|
|
/* Return the I2C_FLAG status */
|
|
|
return bitstatus;
|
|
|
}
|
|
|
@@ -666,20 +666,20 @@ FlagStatus I2C_GetFlagStatus(I2C_TypeDef* I2Cx, uint32_t I2C_FLAG)
|
|
|
/**
|
|
|
* @brief Clears the I2Cx's pending flags.
|
|
|
* @param I2Cx: where x can be 1 or 2 to select the I2C peripheral.
|
|
|
-* @param I2C_FLAG: specifies the flag to clear.
|
|
|
+* @param I2C_FLAG: specifies the flag to clear.
|
|
|
* This parameter can be any combination of the following values:
|
|
|
-* @arg I2C_FLAG_RX_UNDER: Rx Buffer is empty flag
|
|
|
-* @arg I2C_FLAG_RX_OVER : RX Buffer Overrun flag
|
|
|
-* @arg I2C_FLAG_RX_FULL : Rx buffer full flag
|
|
|
-* @arg I2C_FLAG_TX_OVER : TX Buffer Overrun flag
|
|
|
-* @arg I2C_FLAG_TX_EMPTY: TX_FIFO empty flag
|
|
|
-* @arg I2C_FLAG_RD_REQ : I2C work as slave or master flag
|
|
|
-* @arg I2C_FLAG_TX_ABRT : TX error flag(Master mode)
|
|
|
-* @arg I2C_FLAG_RX_DONE : Master not ack flag(slave mode)
|
|
|
-* @arg I2C_FLAG_ACTIVITY: I2C activity flag
|
|
|
-* @arg I2C_FLAG_STOP_DET: stop condition flag
|
|
|
-* @arg I2C_FLAG_START_DET: start condition flag
|
|
|
-* @arg I2C_FLAG_GEN_CALL : a general call address and ack flag
|
|
|
+* @arg I2C_FLAG_RX_UNDER: Rx Buffer is empty flag
|
|
|
+* @arg I2C_FLAG_RX_OVER : RX Buffer Overrun flag
|
|
|
+* @arg I2C_FLAG_RX_FULL : Rx buffer full flag
|
|
|
+* @arg I2C_FLAG_TX_OVER : TX Buffer Overrun flag
|
|
|
+* @arg I2C_FLAG_TX_EMPTY: TX_FIFO empty flag
|
|
|
+* @arg I2C_FLAG_RD_REQ : I2C work as slave or master flag
|
|
|
+* @arg I2C_FLAG_TX_ABRT : TX error flag(Master mode)
|
|
|
+* @arg I2C_FLAG_RX_DONE : Master not ack flag(slave mode)
|
|
|
+* @arg I2C_FLAG_ACTIVITY: I2C activity flag
|
|
|
+* @arg I2C_FLAG_STOP_DET: stop condition flag
|
|
|
+* @arg I2C_FLAG_START_DET: start condition flag
|
|
|
+* @arg I2C_FLAG_GEN_CALL : a general call address and ack flag
|
|
|
* @retval : None
|
|
|
*/
|
|
|
void I2C_ClearFlag(I2C_TypeDef* I2Cx, uint32_t I2C_FLAG)
|
|
|
@@ -690,7 +690,7 @@ void I2C_ClearFlag(I2C_TypeDef* I2Cx, uint32_t I2C_FLAG)
|
|
|
assert_param(IS_I2C_CLEAR_FLAG(I2C_FLAG));
|
|
|
/* Get the I2Cx peripheral base address */
|
|
|
i2cxbase = (*(uint32_t*)&(I2Cx));
|
|
|
-
|
|
|
+
|
|
|
if(I2C_FLAG==I2C_FLAG_RX_UNDER)
|
|
|
{
|
|
|
/* Get the I2Cx SR1 register address */
|
|
|
@@ -766,20 +766,20 @@ void I2C_ClearFlag(I2C_TypeDef* I2Cx, uint32_t I2C_FLAG)
|
|
|
/**
|
|
|
* @brief Checks whether the specified I2C interrupt has occurred or not.
|
|
|
* @param I2Cx: where x can be 1 or 2 to select the I2C peripheral.
|
|
|
-* @param I2C_IT: specifies the interrupt source to check.
|
|
|
+* @param I2C_IT: specifies the interrupt source to check.
|
|
|
* This parameter can be one of the following values:
|
|
|
-* @arg I2C_IT_RX_UNDER: Rx Buffer is empty interrupt
|
|
|
-* @arg I2C_IT_RX_OVER : RX Buffer Overrun interrupt
|
|
|
-* @arg I2C_IT_RX_FULL : Rx buffer full interrupt
|
|
|
-* @arg I2C_IT_TX_OVER : TX Buffer Overrun interrupt
|
|
|
-* @arg I2C_IT_TX_EMPTY : TX_FIFO empty interrupt
|
|
|
-* @arg I2C_IT_RD_REQ : I2C work as slave or master interrupt
|
|
|
-* @arg I2C_IT_TX_ABRT : TX error interrupt (Master mode)
|
|
|
-* @arg I2C_IT_RX_DONE : Master not ack interrupt (slave mode)
|
|
|
-* @arg I2C_IT_ACTIVITY : I2C activity interrupt
|
|
|
-* @arg I2C_IT_STOP_DET : stop condition interrupt
|
|
|
-* @arg I2C_IT_START_DET : start condition interrupt
|
|
|
-* @arg I2C_IT_GEN_CALL : a general call address and ack interrupt
|
|
|
+* @arg I2C_IT_RX_UNDER: Rx Buffer is empty interrupt
|
|
|
+* @arg I2C_IT_RX_OVER : RX Buffer Overrun interrupt
|
|
|
+* @arg I2C_IT_RX_FULL : Rx buffer full interrupt
|
|
|
+* @arg I2C_IT_TX_OVER : TX Buffer Overrun interrupt
|
|
|
+* @arg I2C_IT_TX_EMPTY : TX_FIFO empty interrupt
|
|
|
+* @arg I2C_IT_RD_REQ : I2C work as slave or master interrupt
|
|
|
+* @arg I2C_IT_TX_ABRT : TX error interrupt (Master mode)
|
|
|
+* @arg I2C_IT_RX_DONE : Master not ack interrupt (slave mode)
|
|
|
+* @arg I2C_IT_ACTIVITY : I2C activity interrupt
|
|
|
+* @arg I2C_IT_STOP_DET : stop condition interrupt
|
|
|
+* @arg I2C_IT_START_DET : start condition interrupt
|
|
|
+* @arg I2C_IT_GEN_CALL : a general call address and ack interrupt
|
|
|
* @retval : The new state of I2C_IT (SET or RESET).
|
|
|
*/
|
|
|
ITStatus I2C_GetITStatus(I2C_TypeDef* I2Cx, uint32_t I2C_IT)
|
|
|
@@ -788,7 +788,7 @@ ITStatus I2C_GetITStatus(I2C_TypeDef* I2Cx, uint32_t I2C_IT)
|
|
|
/* Check the parameters */
|
|
|
assert_param(IS_I2C_ALL_PERIPH(I2Cx));
|
|
|
assert_param(IS_I2C_GET_IT(I2C_IT));
|
|
|
-
|
|
|
+
|
|
|
/* Check the status of the specified I2C flag */
|
|
|
if((I2Cx->IC_RAW_INTR_STAT & I2C_IT) != (uint32_t)RESET)
|
|
|
{
|
|
|
@@ -800,7 +800,7 @@ ITStatus I2C_GetITStatus(I2C_TypeDef* I2Cx, uint32_t I2C_IT)
|
|
|
/* I2C_IT is reset */
|
|
|
bitstatus = RESET;
|
|
|
}
|
|
|
-
|
|
|
+
|
|
|
/* Return the I2C_IT status */
|
|
|
return bitstatus;
|
|
|
}
|
|
|
@@ -808,20 +808,20 @@ ITStatus I2C_GetITStatus(I2C_TypeDef* I2Cx, uint32_t I2C_IT)
|
|
|
/**
|
|
|
* @brief Clears the I2Cx interrupt pending bits.
|
|
|
* @param I2Cx: where x can be 1 or 2 to select the I2C peripheral.
|
|
|
-* @param I2C_IT: specifies the interrupt pending bit to clear.
|
|
|
+* @param I2C_IT: specifies the interrupt pending bit to clear.
|
|
|
* This parameter can be any combination of the following values:
|
|
|
-* @arg I2C_IT_RX_UNDER: Rx Buffer is empty interrupt
|
|
|
-* @arg I2C_IT_RX_OVER : RX Buffer Overrun interrupt
|
|
|
-* @arg I2C_IT_RX_FULL : Rx buffer full interrupt
|
|
|
-* @arg I2C_IT_TX_OVER : TX Buffer Overrun interrupt
|
|
|
-* @arg I2C_IT_TX_EMPTY : TX_FIFO empty interrupt
|
|
|
-* @arg I2C_IT_RD_REQ : I2C work as slave or master interrupt
|
|
|
-* @arg I2C_IT_TX_ABRT : TX error interrupt (Master mode)
|
|
|
-* @arg I2C_IT_RX_DONE : Master not ack interrupt (slave mode)
|
|
|
-* @arg I2C_IT_ACTIVITY : I2C activity interrupt
|
|
|
-* @arg I2C_IT_STOP_DET : stop condition interrupt
|
|
|
-* @arg I2C_IT_START_DET : start condition interrupt
|
|
|
-* @arg I2C_IT_GEN_CALL : a general call address and ack interrupt
|
|
|
+* @arg I2C_IT_RX_UNDER: Rx Buffer is empty interrupt
|
|
|
+* @arg I2C_IT_RX_OVER : RX Buffer Overrun interrupt
|
|
|
+* @arg I2C_IT_RX_FULL : Rx buffer full interrupt
|
|
|
+* @arg I2C_IT_TX_OVER : TX Buffer Overrun interrupt
|
|
|
+* @arg I2C_IT_TX_EMPTY : TX_FIFO empty interrupt
|
|
|
+* @arg I2C_IT_RD_REQ : I2C work as slave or master interrupt
|
|
|
+* @arg I2C_IT_TX_ABRT : TX error interrupt (Master mode)
|
|
|
+* @arg I2C_IT_RX_DONE : Master not ack interrupt (slave mode)
|
|
|
+* @arg I2C_IT_ACTIVITY : I2C activity interrupt
|
|
|
+* @arg I2C_IT_STOP_DET : stop condition interrupt
|
|
|
+* @arg I2C_IT_START_DET : start condition interrupt
|
|
|
+* @arg I2C_IT_GEN_CALL : a general call address and ack interrupt
|
|
|
* @retval : None
|
|
|
*/
|
|
|
void I2C_ClearITPendingBit(I2C_TypeDef* I2Cx, uint32_t I2C_IT)
|
|
|
@@ -829,20 +829,20 @@ void I2C_ClearITPendingBit(I2C_TypeDef* I2Cx, uint32_t I2C_IT)
|
|
|
/* Check the parameters */
|
|
|
assert_param(IS_I2C_ALL_PERIPH(I2Cx));
|
|
|
assert_param(IS_I2C_CLEAR_IT(I2C_IT));
|
|
|
-
|
|
|
+
|
|
|
/* Clear the selected I2C flag */
|
|
|
I2Cx->IC_INTR_MASK &= (uint16_t)~I2C_IT;
|
|
|
}
|
|
|
|
|
|
/**
|
|
|
* @}
|
|
|
-*/
|
|
|
+*/
|
|
|
|
|
|
/**
|
|
|
* @}
|
|
|
-*/
|
|
|
+*/
|
|
|
|
|
|
/**
|
|
|
* @}
|
|
|
-*/
|
|
|
+*/
|
|
|
/*-------------------------(C) COPYRIGHT 2016 HOLOCENE ----------------------*/
|
NU-LL