| MINI51DE_BSP V3.02.004 The Board Support Package for Mini51DE Series MCU

i2c.h
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1/**************************************************************************/
12#ifndef __I2C_H__
13#define __I2C_H__
14
15#ifdef __cplusplus
16 extern "C"
17{
18#endif
19
20
34#define I2C_STA 0x20
35#define I2C_STO 0x10
36#define I2C_SI 0x08
37#define I2C_AA 0x04 /* end of group MINI51_I2C_EXPORTED_CONSTANTS */
40
41
52#define I2C_SET_CONTROL_REG(i2c, u8Ctrl) ( (i2c)->I2CON = ((i2c)->I2CON & ~0x3c) | u8Ctrl )
53
59#define I2C_START(i2c) ( (i2c)->I2CON = ((i2c)->I2CON & ~I2C_I2CON_SI_Msk) | I2C_I2CON_STA_Msk )
60
61
68__STATIC_INLINE int32_t I2C_STOP(I2C_T *i2c)
69{
70 int32_t tout = (SystemCoreClock / 10);
71
72 i2c->I2CON |= (I2C_I2CON_SI_Msk | I2C_I2CON_STO_Msk);
73 while ((i2c->I2CON & I2C_I2CON_STO_Msk) && (tout-- > 0)) ;
74 if (i2c->I2CON & I2C_I2CON_STO_Msk)
75 return -1;
76 return 0;
77}
78
85__STATIC_INLINE int32_t I2C_WAIT_READY(I2C_T *i2c)
86{
87 int32_t tout = (SystemCoreClock / 10);
88
89 while (!(i2c->I2CON & I2C_I2CON_SI_Msk) && (tout-- > 0));
90 if (!(i2c->I2CON & I2C_I2CON_SI_Msk))
91 return -1;
92 return 0;
93}
94
100#define I2C_DISABLE_FIFO(i2c) ( (i2c)->I2CON2 &= ~I2C_I2CON2_TWOFF_EN_Msk )
101
107#define I2C_ENABLE_FIFO(i2c) ( (i2c)->I2CON2 |= I2C_I2CON2_TWOFF_EN_Msk )
108
114#define I2C_DISABLE_CLOCK_STRETCH(i2c) ( (i2c)->I2CON2 |= I2C_I2CON2_NOSTRETCH_Msk )
115
121#define I2C_ENABLE_CLOCK_STRETCH(i2c) ( (i2c)->I2CON2 &= ~I2C_I2CON2_NOSTRETCH_Msk )
122
128#define I2C_DISABLE_OVERRUN_INT(i2c) ( (i2c)->I2CON2 &= ~I2C_I2CON2_OVER_INTEN_Msk )
129
135#define I2C_ENABLE_OVERRUN_INT(i2c) ( (i2c)->I2CON2 |= I2C_I2CON2_OVER_INTEN_Msk )
136
142#define I2C_ENABLE_UNDERRUN_INT(i2c) ( (i2c)->I2CON2 |= I2C_I2CON2_UNDER_INTEN_Msk )
143
149#define I2C_DISABLE_UNDERRUN_INT(i2c) ( (i2c)->I2CON2 &= ~I2C_I2CON2_UNDER_INTEN_Msk )
150
156#define I2C_GET_DATA(i2c) ( (i2c)->I2CDAT )
157
164#define I2C_SET_DATA(i2c, u8Data) ( (i2c)->I2CDAT = u8Data )
165
171#define I2C_GET_STATUS(i2c) ( (i2c)->I2CSTATUS )
172
180#define I2C_GET_TIMEOUT_FLAG(i2c) ( ((i2c)->I2CTOC & I2C_I2CTOC_TIF_Msk) == I2C_I2CTOC_TIF_Msk ? 1:0 )
181
189#define I2C_GET_WAKEUP_FLAG(i2c) ( ((i2c)->I2CSTATUS2 & I2C_I2CSTATUS2_WAKEUP_Msk) == I2C_I2CSTATUS2_WAKEUP_Msk ? 1:0 )
190
196#define I2C_CLEAR_WAKEUP_FLAG(i2c) ((i2c)->I2CSTATUS2 |= I2C_I2CSTATUS2_WAKEUP_Msk )
197
198uint32_t I2C_Open(I2C_T *i2c, uint32_t u32BusClock);
199 void I2C_Close(I2C_T *i2c);
200 void I2C_ClearTimeoutFlag(I2C_T *i2c);
201 void I2C_Trigger(I2C_T *i2c, uint8_t u8Start, uint8_t u8Stop, uint8_t u8Si, uint8_t u8Ack);
202 void I2C_DisableInt(I2C_T *i2c);
203 void I2C_EnableInt(I2C_T *i2c);
204uint32_t I2C_GetBusClockFreq(I2C_T *i2c);
205uint32_t I2C_SetBusClockFreq(I2C_T *i2c, uint32_t u32BusClock);
206uint32_t I2C_GetIntFlag(I2C_T *i2c);
207uint32_t I2C_GetStatus(I2C_T *i2c);
208uint32_t I2C_GetData(I2C_T *i2c);
209 void I2C_SetData(I2C_T *i2c, uint8_t u8Data);
210 void I2C_SetSlaveAddr(I2C_T *i2c, uint8_t u8SlaveNo, uint8_t u8SlaveAddr, uint8_t u8GCMode);
211 void I2C_SetSlaveAddrMask(I2C_T *i2c, uint8_t u8SlaveNo, uint8_t u8SlaveAddrMask);
212 void I2C_EnableTimeout(I2C_T *i2c, uint8_t u8LongTimeout);
213 void I2C_DisableTimeout(I2C_T *i2c);
214 void I2C_EnableWakeup(I2C_T *i2c);
215 void I2C_DisableWakeup(I2C_T *i2c);
216 /* end of group MINI51_I2C_EXPORTED_FUNCTIONS */
218 /* end of group MINI51_I2C_Driver */
220 /* end of group MINI51_Device_Driver */
222
223#ifdef __cplusplus
224}
225#endif
226
227#endif //__I2C_H__
228
229/*** (C) COPYRIGHT 2013 Nuvoton Technology Corp. ***/
I2C_I2CON_STO_Msk
#define I2C_I2CON_STO_Msk
Definition: Mini51Series.h:2444
I2C_I2CON_SI_Msk
#define I2C_I2CON_SI_Msk
Definition: Mini51Series.h:2441
I2C_STOP
__STATIC_INLINE int32_t I2C_STOP(I2C_T *i2c)
This macro only set STOP bit to the control register of I2C module.
Definition: i2c.h:68
I2C_SetSlaveAddrMask
void I2C_SetSlaveAddrMask(I2C_T *i2c, uint8_t u8SlaveNo, uint8_t u8SlaveAddrMask)
Configure the mask of slave address. The corresponding address bit is "Don't Care".
Definition: i2c.c:223
I2C_Close
void I2C_Close(I2C_T *i2c)
This function closes the I2C module.
Definition: i2c.c:51
I2C_SetBusClockFreq
uint32_t I2C_SetBusClockFreq(I2C_T *i2c, uint32_t u32BusClock)
This function enables the interrupt (EI bit) of I2C module.
Definition: i2c.c:134
I2C_Trigger
void I2C_Trigger(I2C_T *i2c, uint8_t u8Start, uint8_t u8Stop, uint8_t u8Si, uint8_t u8Ack)
This function sets the control bit of the I2C module.
Definition: i2c.c:80
I2C_EnableTimeout
void I2C_EnableTimeout(I2C_T *i2c, uint8_t u8LongTimeout)
This function enables timeout function and configures DIV4 function to support long timeout.
Definition: i2c.c:250
I2C_ClearTimeoutFlag
void I2C_ClearTimeoutFlag(I2C_T *i2c)
This function clears the timeout flag.
Definition: i2c.c:66
I2C_SetSlaveAddr
void I2C_SetSlaveAddr(I2C_T *i2c, uint8_t u8SlaveNo, uint8_t u8SlaveAddr, uint8_t u8GCMode)
Configure slave address and enable GC mode.
Definition: i2c.c:195
I2C_SetData
void I2C_SetData(I2C_T *i2c, uint8_t u8Data)
This function writes the data to data register of I2C module.
Definition: i2c.c:182
I2C_GetBusClockFreq
uint32_t I2C_GetBusClockFreq(I2C_T *i2c)
This function returns the real bus clock of I2C module.
Definition: i2c.c:121
I2C_EnableInt
void I2C_EnableInt(I2C_T *i2c)
This function enables the interrupt (EI bit) of I2C module.
Definition: i2c.c:111
I2C_DisableWakeup
void I2C_DisableWakeup(I2C_T *i2c)
This function disables the wakeup function of I2C module.
Definition: i2c.c:285
I2C_GetStatus
uint32_t I2C_GetStatus(I2C_T *i2c)
This function returns the status of I2C module.
Definition: i2c.c:161
I2C_WAIT_READY
__STATIC_INLINE int32_t I2C_WAIT_READY(I2C_T *i2c)
This macro will return when I2C module is ready.
Definition: i2c.h:85
I2C_DisableInt
void I2C_DisableInt(I2C_T *i2c)
This function disables the interrupt (EI bit) of I2C module.
Definition: i2c.c:101
I2C_GetData
uint32_t I2C_GetData(I2C_T *i2c)
This function returns the data stored in data register of I2C module.
Definition: i2c.c:171
I2C_EnableWakeup
void I2C_EnableWakeup(I2C_T *i2c)
This function enables the wakeup function of I2C module.
Definition: i2c.c:275
I2C_GetIntFlag
uint32_t I2C_GetIntFlag(I2C_T *i2c)
This function gets the interrupt flag (SI bit) of I2C module.
Definition: i2c.c:151
I2C_Open
uint32_t I2C_Open(I2C_T *i2c, uint32_t u32BusClock)
This function make I2C module be ready and set the wanted bus clock.
Definition: i2c.c:33
I2C_DisableTimeout
void I2C_DisableTimeout(I2C_T *i2c)
This function disables timeout function.
Definition: i2c.c:265
I2C_T::I2CON
__IO uint32_t I2CON
Definition: Mini51Series.h:2409
I2C_T
Definition: Mini51Series.h:2203
SystemCoreClock
uint32_t SystemCoreClock
Definition: system_Mini51Series.c:20