/***********************************************************************************************************************
* Copyright (C) All rights reserved.
***********************************************************************************************************************/
/***********************************************************************************************************************
* @file iica.c
* @brief This file implements device driver for IICA module.
* @version 1.0.0
* @date 2019/12/24
***********************************************************************************************************************/
/***********************************************************************************************************************
Includes
***********************************************************************************************************************/
#include "userdefine.h"
#include "BAT32A239.h"
#include "iica.h"
/* Start user code for include. Do not edit comment generated here */
/* End user code. Do not edit comment generated here */
/***********************************************************************************************************************
Pragma directive
***********************************************************************************************************************/
/* Start user code for pragma. Do not edit comment generated here */
/* End user code. Do not edit comment generated here */
/***********************************************************************************************************************
Global variables and functions
***********************************************************************************************************************/
volatile uint8_t g_iica0_master_status_flag; /* iica0 master flag */
volatile uint8_t g_iica0_slave_status_flag; /* iica0 slave flag */
volatile uint8_t * gp_iica0_rx_address; /* iica0 receive buffer address */
volatile uint16_t g_iica0_rx_len; /* iica0 receive data length */
volatile uint16_t g_iica0_rx_cnt; /* iica0 receive data count */
volatile uint8_t * gp_iica0_tx_address; /* iica0 send buffer address */
volatile uint16_t g_iica0_tx_cnt; /* iica0 send data count */
volatile uint8_t g_iica0_tx_end; /* iica0 send data end */
volatile uint8_t g_iica0_rx_end; /* iica0 receive data end */
volatile uint8_t g_iica1_master_status_flag; /* iica1 master flag */
volatile uint8_t g_iica1_slave_status_flag; /* iica1 slave flag */
volatile uint8_t * gp_iica1_rx_address; /* iica1 receive buffer address */
volatile uint16_t g_iica1_rx_cnt; /* iica1 receive data length */
volatile uint16_t g_iica1_rx_len; /* iica1 receive data count */
volatile uint8_t * gp_iica1_tx_address; /* iica1 send buffer address */
volatile uint16_t g_iica1_tx_cnt; /* iica1 send data count */
volatile uint8_t g_iica1_tx_end; /* iica1 send data end */
volatile uint8_t g_iica1_rx_end; /* iica1 receive data end */
/* Start user code for global. Do not edit comment generated here */
/* End user code. Do not edit comment generated here */
/***********************************************************************************************************************
* Function Name: IICA0_Init
* @brief This function initializes the IICA0 module.
* @param None
* @return None
***********************************************************************************************************************/
void IICA0_Init(void)
{
CGC->PER0 |= CGC_PER0_IICA0EN_Msk; /* enables input clock supply */
IICA0->IICCTL00 = _00_IICA_OPERATION_STOP; /* stop operation */
INTC_DisableIRQ(IICA0_IRQn); /* disable INTIICA interrupt flag */
INTC_ClearPendingIRQ(IICA0_IRQn); /* clear INTIICA interrupt flag */
#ifdef IICA_STANDARD_MODE /* Max rate: 100Kbps */
IICA0->IICCTL01 = _00_IICA_OPERATE_STANDARD; /* operates in standard mode */
IICA0->IICWL0 = _4B_IICA_LOW_WIDTH;
IICA0->IICWH0 = _53_IICA_HIGH_WIDTH;
#endif
#ifdef IICA_FAST_MODE /* Max rate: 400Kbps */
IICA0->IICCTL01 = _08_IICA_OPERATE_FAST; /* operates in fast mode */
IICA0->IICCTL01 |= _04_IICA_FILTER_ON; /* filter on */
IICA0->IICWL0 = _14_IICA_LOW_WIDTH;
IICA0->IICWH0 = _12_IICA_HIGH_WIDTH;
#endif
IICA0->IICCTL01 |= _01_IICA_FCLK_2_SELECTED;
IICA0->SVA0 = _98_IICA0_SLAVEADDRESS;
IICA0->IICF0 |= _02_IICA_WITHOUT_DETECTION; /* enable generation of a start condition without detecting a stop
condition */
IICA0->IICF0 |= _01_IICA_RESERVATION_DISABLE; /* disable communication reservation */
IICA0->IICCTL00 |= _08_IICA_INTERRUPT_REQUEST_NINTH; /* interrupt request is generated at the ninth clock's falling edge */
IICA0->IICCTL00 |= _04_IICA_ACKOWNLEDGMENT_ENABLE; /* enable acknowledgment */
IICA0->IICCTL00 |= _80_IICA_OPERATION_ENABLE; /* enable operation */
IICA0->IICCTL00 |= _40_IICA_OPERATION_STANDBY; /* this exits from the current communications and sets standby mode */
INTC_EnableIRQ(IICA0_IRQn); /* enable INTIICA interrupt flag */
/* Set SCLA0, SDAA0 pin */
SCLA0_PORT_SETTING();
SDAA0_PORT_SETTING();
}
/***********************************************************************************************************************
* Function Name: IICA0_Stop
* @brief This function stops IICA0 module operation.
* @param None
* @return None
***********************************************************************************************************************/
void IICA0_Stop(void)
{
IICA0->IICCTL00 &= ~IICA0_IICCTL00_IICE_Msk; /* stop operation */
}
/***********************************************************************************************************************
* Function Name: IICA0_StopCondition
* @brief This function sets IICA0 stop condition flag.
* @param None
* @return None
***********************************************************************************************************************/
void IICA0_StopCondition(void)
{
IICA0->IICCTL00 |= IICA0_IICCTL00_SPT_Msk; /* stop condition is generated */
}
/***********************************************************************************************************************
* Function Name: IICA0_MasterSend
* @brief This function starts to send data as master mode.
* @param adr - send address
* @param tx_buf - transfer buffer pointer
* @param tx_num - buffer size
* @param wait
* - wait for start condition
* @return status
* - MD_OK or MD_ERROR1 or MD_ERROR2
***********************************************************************************************************************/
MD_STATUS IICA0_MasterSend(uint8_t adr, uint8_t * const tx_buf, uint16_t tx_num, uint8_t wait)
{
MD_STATUS status = MD_OK;
INTC_DisableIRQ(IICA0_IRQn); /* disable INTIICA0 interrupt */
if (IICA0->IICF0 & IICA0_IICF0_IICBSY_Msk)
{
/* Check bus busy */
INTC_EnableIRQ(IICA0_IRQn); /* enable INTIICA0 interrupt */
status = MD_ERROR1;
}
else
{
IICA0->IICCTL00 |= IICA0_IICCTL00_STT_Msk; /* generate a start condition */
INTC_EnableIRQ(IICA0_IRQn); /* enable INTIICA0 interrupt */
/* Wait */
while (wait--)
{
;
}
if (0U == (IICA0->IICS0 & IICA0_IICS0_STD_Msk))
{
status = MD_ERROR2;
}
/* Set parameter */
g_iica0_tx_cnt = tx_num;
gp_iica0_tx_address = tx_buf;
g_iica0_tx_end = 0;
g_iica0_master_status_flag = _00_IICA_MASTER_FLAG_CLEAR;
adr &= (uint8_t)~0x01U; /* set send mode */
IICA0->IICA00 = adr; /* send address */
}
return (status);
}
/***********************************************************************************************************************
* Function Name: IICA0_MasterReceive
* @brief This function starts to receive IICA0 data as master mode.
* @param adr - receive address
* @param rx_buf - receive buffer pointer
* @param rx_num - buffer size
* @param wait
* - wait for start condition
* @return status
* - MD_OK or MD_ERROR1 or MD_ERROR2
***********************************************************************************************************************/
MD_STATUS IICA0_MasterReceive(uint8_t adr, uint8_t * const rx_buf, uint16_t rx_num, uint8_t wait)
{
MD_STATUS status = MD_OK;
INTC_DisableIRQ(IICA0_IRQn); /* disable INTIICA0 interrupt */
if (IICA0->IICF0 & IICA0_IICF0_IICBSY_Msk)
{
/* Check bus busy */
INTC_EnableIRQ(IICA0_IRQn); /* enable INTIICA0 interrupt */
status = MD_ERROR1;
}
else
{
IICA0->IICCTL00 |= IICA0_IICCTL00_STT_Msk; /* generate a start condition */
INTC_EnableIRQ(IICA0_IRQn); /* enable INTIICA0 interrupt */
/* Wait */
while (wait--)
{
;
}
if (0U == (IICA0->IICS0 & IICA0_IICS0_STD_Msk))
{
status = MD_ERROR2;
}
/* Set parameter */
g_iica0_rx_len = rx_num;
g_iica0_rx_cnt = 0U;
gp_iica0_rx_address = rx_buf;
g_iica0_rx_end = 0;
g_iica0_master_status_flag = _00_IICA_MASTER_FLAG_CLEAR;
adr |= 0x01U; /* set receive mode */
IICA0->IICA00 = adr; /* receive address */
}
return (status);
}
/***********************************************************************************************************************
* Function Name: IICA0_SlaveSend
* @brief This function sends data as slave mode.
* @param adr - send address
* @param tx_buf - transfer buffer pointer
* @param tx_num - buffer size
* @return None
***********************************************************************************************************************/
void IICA0_SlaveSend(uint8_t adr, uint8_t * const tx_buf, uint16_t tx_num)
{
g_iica0_tx_cnt = tx_num;
gp_iica0_tx_address = tx_buf;
g_iica0_tx_end = 0;
g_iica0_slave_status_flag = 0U;
IICA0->SVA0 = adr; /* slave address */
}
/***********************************************************************************************************************
* Function Name: IICA0_SlaveReceive
* @brief This function receives data as slave mode.
* @param adr - send address
* @param tx_buf - receive buffer pointer
* @param rx_num - buffer size
* @return None
***********************************************************************************************************************/
void IICA0_SlaveReceive(uint8_t adr, uint8_t * const rx_buf, uint16_t rx_num)
{
g_iica0_rx_len = rx_num;
g_iica0_rx_cnt = 0U;
gp_iica0_rx_address = rx_buf;
g_iica0_rx_end = 0;
g_iica0_slave_status_flag = 0U;
IICA0->SVA0 = adr; /* slave address */
}
/***********************************************************************************************************************
* Function Name: IICA0_Set_Wakeup
* @brief This function sets the WUPn bit of IICCTL01 register.
* @param None
* @return None
***********************************************************************************************************************/
void IICA0_Set_Wakeup(void)
{
IICA0->IICCTL01 |= 0x80; /* WUP = 1 */
__NOP();
__NOP();
__NOP();
__STOP();
}
/***********************************************************************************************************************
* Function Name: IICA0_Clear_Wakeup
* @brief This function clears the WUPn bit of IICCTL01 register.
* @param None
* @return None
***********************************************************************************************************************/
void IICA0_Clear_Wakeup(void)
{
IICA0->IICCTL01 &= ~0x80; /* WUP = 0 */
__NOP();
__NOP();
__NOP();
__NOP();
__NOP();
}
/***********************************************************************************************************************
* Function Name: IICA1_Init
* @brief This function initializes the IICA1 module.
* @param None
* @return None
***********************************************************************************************************************/
void IICA1_Init(void)
{
CGC->PER2 |= CGC_PER2_IICA1EN_Msk; /* enables input clock supply */
IICA1->IICCTL10 = _00_IICA_OPERATION_STOP; /* stop operation */
INTC_DisableIRQ(IICA1_IRQn); /* disable INTIICA interrupt flag */
INTC_ClearPendingIRQ(IICA1_IRQn); /* clear INTIICA interrupt flag */
#ifdef IICA_STANDARD_MODE /* Max rate: 100Kbps */
IICA1->IICCTL11 = _00_IICA_OPERATE_STANDARD; /* operates in standard mode */
IICA1->IICWL1 = _4B_IICA_LOW_WIDTH;
IICA1->IICWH1 = _53_IICA_HIGH_WIDTH;
#endif
#ifdef IICA_FAST_MODE /* Max rate: 400Kbps */
IICA1->IICCTL11 = _08_IICA_OPERATE_FAST; /* operates in fast mode */
IICA1->IICCTL11 |= _04_IICA_FILTER_ON; /* filter on */
IICA1->IICWL1 = _14_IICA_LOW_WIDTH;
IICA1->IICWH1 = _12_IICA_HIGH_WIDTH;
#endif
IICA1->IICCTL11 |= _01_IICA_FCLK_2_SELECTED;
IICA1->SVA1 = _98_IICA1_SLAVEADDRESS;
IICA1->IICF1 |= _02_IICA_WITHOUT_DETECTION; /* enable generation of a start condition without detecting a stop
condition */
IICA1->IICF1 |= _01_IICA_RESERVATION_DISABLE; /* disable communication reservation */
IICA1->IICCTL10 |= _08_IICA_INTERRUPT_REQUEST_NINTH; /* interrupt request is generated at the ninth clock's falling edge */
IICA1->IICCTL10 |= _04_IICA_ACKOWNLEDGMENT_ENABLE; /* enable acknowledgment */
IICA1->IICCTL10 |= _80_IICA_OPERATION_ENABLE; /* enable operation */
IICA1->IICCTL10 |= _40_IICA_OPERATION_STANDBY; /* this exits from the current communications and sets standby mode */
INTC_EnableIRQ(IICA1_IRQn); /* enable INTIICA interrupt flag */
/* Set SCLA0, SDAA0 pin */
SCLA1_PORT_SETTING();
SDAA1_PORT_SETTING();
}
/***********************************************************************************************************************
* Function Name: IICA1_Stop
* @brief This function stops IICA1 module operation.
* @param None
* @return None
***********************************************************************************************************************/
void IICA1_Stop(void)
{
IICA1->IICCTL10 &= ~IICA1_IICCTL10_IICE_Msk; /* stop operation */
}
/***********************************************************************************************************************
* Function Name: IICA1_StopCondition
* @brief This function sets IICA1 stop condition flag.
* @param None
* @return None
***********************************************************************************************************************/
void IICA1_StopCondition(void)
{
IICA1->IICCTL10 |= IICA1_IICCTL10_SPT_Msk; /* stop condition is generated */
}
/***********************************************************************************************************************
* Function Name: IICA1_MasterSend
* @brief This function starts to send data as master mode.
* @param adr - send address
* @param tx_buf - transfer buffer pointer
* @param tx_num - buffer size
* @param wait
* - wait for start condition
* @return status
* - MD_OK or MD_ERROR1 or MD_ERROR2
***********************************************************************************************************************/
MD_STATUS IICA1_MasterSend(uint8_t adr, uint8_t * const tx_buf, uint16_t tx_num, uint8_t wait)
{
MD_STATUS status = MD_OK;
INTC_DisableIRQ(IICA1_IRQn); /* disable INTIICA1 interrupt */
if (IICA1->IICF1 & IICA1_IICF1_IICBSY_Msk)
{
/* Check bus busy */
INTC_EnableIRQ(IICA1_IRQn); /* enable INTIICA1 interrupt */
status = MD_ERROR1;
}
else
{
IICA1->IICCTL10 |= IICA1_IICCTL10_STT_Msk; /* generate a start condition */
INTC_EnableIRQ(IICA1_IRQn); /* enable INTIICA1 interrupt */
/* Wait */
while (wait--)
{
;
}
if (0U == (IICA1->IICS1 & IICA1_IICS1_STD_Msk))
{
status = MD_ERROR2;
}
/* Set parameter */
g_iica1_tx_cnt = tx_num;
gp_iica1_tx_address = tx_buf;
g_iica1_tx_end = 0;
g_iica1_master_status_flag = _00_IICA_MASTER_FLAG_CLEAR;
adr &= (uint8_t)~0x01U; /* set send mode */
IICA1->IICA10 = adr; /* send address */
}
return (status);
}
/***********************************************************************************************************************
* Function Name: IICA1_MasterReceive
* @brief This function starts to receive IICA1 data as master mode.
* @param adr - receive address
* @param rx_buf - receive buffer pointer
* @param rx_num - buffer size
* @param wait
* - wait for start condition
* @return status
* - MD_OK or MD_ERROR1 or MD_ERROR2
***********************************************************************************************************************/
MD_STATUS IICA1_MasterReceive(uint8_t adr, uint8_t * const rx_buf, uint16_t rx_num, uint8_t wait)
{
MD_STATUS status = MD_OK;
INTC_DisableIRQ(IICA1_IRQn); /* disable INTIICA1 interrupt */
if (IICA1->IICF1 & IICA1_IICF1_IICBSY_Msk)
{
/* Check bus busy */
INTC_EnableIRQ(IICA1_IRQn); /* enable INTIICA1 interrupt */
status = MD_ERROR1;
}
else
{
IICA1->IICCTL10 |= IICA1_IICCTL10_STT_Msk; /* generate a start condition */
INTC_EnableIRQ(IICA1_IRQn); /* enable INTIICA1 interrupt */
/* Wait */
while (wait--)
{
;
}
if (0U == (IICA1->IICS1 & IICA1_IICS1_STD_Msk))
{
status = MD_ERROR2;
}
/* Set parameter */
g_iica1_rx_len = rx_num;
g_iica1_rx_cnt = 0U;
gp_iica1_rx_address = rx_buf;
g_iica1_rx_end = 0;
g_iica1_master_status_flag = _00_IICA_MASTER_FLAG_CLEAR;
adr |= 0x01U; /* set receive mode */
IICA1->IICA10 = adr; /* receive address */
}
return (status);
}
/***********************************************************************************************************************
* Function Name: IICA1_SlaveSend
* @brief This function sends data as slave mode.
* @param adr - send address
* @param tx_buf - transfer buffer pointer
* @param tx_num - buffer size
* @return None
***********************************************************************************************************************/
void IICA1_SlaveSend(uint8_t adr, uint8_t * const tx_buf, uint16_t tx_num)
{
g_iica1_tx_cnt = tx_num;
gp_iica1_tx_address = tx_buf;
g_iica1_tx_end = 0;
g_iica1_slave_status_flag = 0U;
IICA1->SVA1 = adr; /* slave address */
}
/***********************************************************************************************************************
* Function Name: IICA1_SlaveReceive
* @brief This function receives data as slave mode.
* @param adr - send address
* @param tx_buf - receive buffer pointer
* @param rx_num - buffer size
* @return None
***********************************************************************************************************************/
void IICA1_SlaveReceive(uint8_t adr, uint8_t * const rx_buf, uint16_t rx_num)
{
g_iica1_rx_len = rx_num;
g_iica1_rx_cnt = 0U;
gp_iica1_rx_address = rx_buf;
g_iica1_rx_end = 0;
g_iica1_slave_status_flag = 0U;
IICA1->SVA1 = adr; /* slave address */
}
/***********************************************************************************************************************
* Function Name: IICA1_Set_Wakeup
* @brief This function sets the WUPn bit of IICCTL01 register.
* @param None
* @return None
***********************************************************************************************************************/
void IICA1_Set_Wakeup(void)
{
IICA1->IICCTL11 |= 0x80; /* WUP = 1 */
__NOP();
__NOP();
__NOP();
__STOP();
}
/***********************************************************************************************************************
* Function Name: IICA1_Clear_Wakeup
* @brief This function clears the WUPn bit of IICCTL01 register.
* @param None
* @return None
***********************************************************************************************************************/
void IICA1_Clear_Wakeup(void)
{
IICA1->IICCTL11 &= ~0x80; /* WUP = 0 */
__NOP();
__NOP();
__NOP();
__NOP();
__NOP();
}
/* Start user code for adding. Do not edit comment generated here */
/* End user code. Do not edit comment generated here */