#define IOCON_PIO_DIGITAL_EN 0x80u /*! Enables digital function /
#define IOCON_PIO_FUNC1 0x01u /! Selects pin function 1 /
#define IOCON_PIO_I2CDRIVE_LOW 0x00u /! Low drive: 4 mA /
#define IOCON_PIO_I2CFILTER_EN 0x00u /! I2C 50 ns glitch filter enabled /
#define IOCON_PIO_I2CSLEW_I2C 0x00u /! I2C mode /
#define IOCON_PIO_INPFILT_OFF 0x0100u /! Input filter disabled /
#define IOCON_PIO_INV_DI 0x00u /! Input function is not inverted /
#define IOCON_PIO_MODE_INACT 0x00u /! No addition pin function /
#define IOCON_PIO_OPENDRAIN_DI 0x00u /! Open drain is disabled /
#define IOCON_PIO_SLEW_STANDARD 0x00u /! Standard mode, output slew rate control is enabled /
#define PIN0_IDX 0u /! Pin number for pin 0 in a port 0 /
#define PIN1_IDX 1u /! Pin number for pin 1 in a port 0 /
#define PIN18_IDX 18u /! Pin number for pin 18 in a port 0 /
#define PIN20_IDX 20u /! Pin number for pin 20 in a port 0 /
#define PORT0_IDX 0u /! Port index */

#define EXAMPLE_I2C_MASTER_BASE (I2C5_BASE)
#define I2C_MASTER_CLOCK_FREQUENCY (12000000)

#define EXAMPLE_I2C_MASTER ((I2C_Type *)EXAMPLE_I2C_MASTER_BASE)

#define I2C_MASTER_SLAVE_ADDR_7BIT (0x51U)
#define I2C_BAUDRATE (100000) /* 100K /
#define I2C_DATA_LENGTH (7) / MAX is 256 */

uint8_t g_master_txBuff[I2C_DATA_LENGTH];
uint8_t g_master_rxBuff[I2C_DATA_LENGTH];
uint8_t c8563_Store111[4] {0x00,0x38,0x13,0x05}; /写入时间初值 星期一 07:59:00/
i2c_master_handle_t g_m_handle;

/******************************************************************************

名称:

描述:

参数: [in] 无

 [out] 无

返回: 无
*******************************************************************************/
void HAL_I2c_Init(void)
{

/* Function assigned for the Cortex-M0P /
CLOCK_EnableClock(kCLOCK_Iocon); / Enables the clock for the IOCON block. 0 Disable; 1 Enable.: 0x01u */

/* attach 12 MHz clock to FLEXCOMM4 (I2C master) /
CLOCK_AttachClk(kFRO12M_to_FLEXCOMM5);
/ reset FLEXCOMM for I2C */
RESET_PeripheralReset(kFC5_RST_SHIFT_RSTn);

const uint32_t port0_pin18_config (
IOCON_PIO_FUNC1 | /* Pin is configured as FC4_RTS_SCL_SSEL1 /
IOCON_PIO_I2CSLEW_I2C | / I2C mode /
IOCON_PIO_INV_DI | / Input function is not inverted /
IOCON_PIO_DIGITAL_EN | / Enables digital function /
IOCON_PIO_INPFILT_OFF | / Input filter disabled /
IOCON_PIO_I2CDRIVE_LOW | / Low drive: 4 mA /
IOCON_PIO_I2CFILTER_EN / I2C 50 ns glitch filter enabled /
);
IOCON_PinMuxSet(IOCON, PORT0_IDX, PIN18_IDX, port0_pin18_config); / PORT0 PIN18 (coords: 3) is configured as FC5_RTS_SCL_SSEL1 */

const uint32_t port0_pin20_config (
IOCON_PIO_FUNC1 | /* Pin is configured as FC4_CTS_SDA_SSEL0 /
IOCON_PIO_I2CSLEW_I2C | / I2C mode /
IOCON_PIO_INV_DI | / Input function is not inverted /
IOCON_PIO_DIGITAL_EN | / Enables digital function /
IOCON_PIO_INPFILT_OFF | / Input filter disabled /
IOCON_PIO_I2CDRIVE_LOW | / Low drive: 4 mA /
IOCON_PIO_I2CFILTER_EN / I2C 50 ns glitch filter enabled /
);
IOCON_PinMuxSet(IOCON, PORT0_IDX, PIN20_IDX, port0_pin20_config); / PORT0 PIN20 (coords: 4) is configured as FC5_CTS_SDA_SSEL0 */

i2c_master_config_t masterConfig;
/*

/* Change the default baudrate configuration */
masterConfig.baudRate_Bps I2C_BAUDRATE;

/* Initialize the I2C master peripheral */
I2C_MasterInit(EXAMPLE_I2C_MASTER, masterConfig, I2C_MASTER_CLOCK_FREQUENCY);
#if 0
HAL_I2C_WriteTest(0x04,0x30);
HAL_I2C_WriteTest(0x05,0x59);
HAL_I2C_WriteTest(0x06,0x08);
HAL_I2C_WriteTest(0x07,0);
#endif
}

int HAL_I2C_WriteTest(uint8_t deviceAddress,uint8_t devicedata)
{
status_t reVal kStatus_Fail;
// uint8_t deviceAddress 0x04U;
// uint8_t devicedata 0x06U;
//uint8_t c8563_Store[4] {0x00,0x38,0x13,0x05}; /写入时间初值 星期一 07:59:00/

/* Send master blocking data to slave */if (kStatus_Success I2C_MasterStart(EXAMPLE_I2C_MASTER, I2C_MASTER_SLAVE_ADDR_7BIT, kI2C_Write)){ /* subAddress 0x01, data g_master_txBuff - write to slave. start slaveaddress(w) subAddress length of data buffer data buffer stop*/ reVal I2C_MasterWriteBlocking(EXAMPLE_I2C_MASTER, deviceAddress, 1, kI2C_TransferNoStopFlag); if (reVal ! kStatus_Success) { return -1; } reVal I2C_MasterWriteBlocking(EXAMPLE_I2C_MASTER, devicedata, 1, kI2C_TransferNoStopFlag); if (reVal ! kStatus_Success) { return -1; } reVal I2C_MasterStop(EXAMPLE_I2C_MASTER); if (reVal ! kStatus_Success) { return -1; }}

return 1;

}

int HAL_I2C_ReadTest()
{
status_t reVal kStatus_Fail;
uint8_t deviceAddress 0x04U;
#if 0
while(1)
{
I2C_MasterStart(EXAMPLE_I2C_MASTER, I2C_MASTER_SLAVE_ADDR_7BIT, kI2C_Write);
I2C_MasterWriteBlocking(EXAMPLE_I2C_MASTER, deviceAddress, 1, kI2C_TransferNoStopFlag);

}
#endif
/* Send master blocking data to slave /
if (kStatus_Success I2C_MasterStart(EXAMPLE_I2C_MASTER, I2C_MASTER_SLAVE_ADDR_7BIT, kI2C_Write))
{
/ subAddress 0x01, data g_master_txBuff - write to slave.
start slaveaddress(w) subAddress length of data buffer data buffer stop*/
reVal I2C_MasterWriteBlocking(EXAMPLE_I2C_MASTER, deviceAddress, 1, kI2C_TransferDefaultFlag);
if (reVal ! kStatus_Success)
{
return -1;
}
/*
reVal I2C_MasterWriteBlocking(EXAMPLE_I2C_MASTER, g_master_txBuff, 4, 0);
if (reVal ! kStatus_Success)
{
return -1;
}
*/

 reVal I2C_MasterStop(EXAMPLE_I2C_MASTER); if (reVal ! kStatus_Success) { return -1; }}/* Receive blocking data from slave *//* subAddress 0x01, data g_master_rxBuff - read from slave. start slaveaddress(w) subAddress repeated start slaveaddress(r) rx data buffer stop */if (kStatus_Success I2C_MasterStart(EXAMPLE_I2C_MASTER, I2C_MASTER_SLAVE_ADDR_7BIT, kI2C_Write)){ /* subAddress 0x01, data g_master_txBuff - write to slave. start slaveaddress(w) subAddress length of data buffer data buffer stop*/ reVal I2C_MasterWriteBlocking(EXAMPLE_I2C_MASTER, deviceAddress, 1, kI2C_TransferNoStopFlag); if (reVal ! kStatus_Success) { return -1; } reVal I2C_MasterRepeatedStart(EXAMPLE_I2C_MASTER, I2C_MASTER_SLAVE_ADDR_7BIT, kI2C_Read); if (reVal ! kStatus_Success) { return -1; } reVal I2C_MasterReadBlocking(EXAMPLE_I2C_MASTER, g_master_rxBuff, I2C_DATA_LENGTH , 0); if (reVal ! kStatus_Success) { return -1; } reVal I2C_MasterStop(EXAMPLE_I2C_MASTER); if (reVal ! kStatus_Success) { return -1; }}#if 0PRINTF( %2x : %2x :%2x\\r\\n , g_master_rxBuff[2] 0x3f,g_master_rxBuff[1] 0x7f,g_master_rxBuff[0] 0x7f);#endif

return 1;
}

/******************************************************************************

名称: int2hex

描述: 10进制转化成16进制 转化规则是 21- 0x21 12- 0x12

参数: [in] 无

 [out] 无

返回: 无
*******************************************************************************/
int int2hex(int n)
{
int i
int j
int e
int len;
char res[5];
int iRetVal
memset(res,0,sizeof(res));
sprintf(res, %d ,n);
len strlen(res);
for(i i i )
{
e
for(j j (len-i-1); j )
{
e 16;
}
iRetVal ( res[i]-48)(e);
}

return iRetVal;
}

/******************************************************************************

名称: RTC_DRV_SetDatetime

描述:

参数: [in] 无

 [out] 无

返回: 无
*******************************************************************************/
bool RTC_DRV_SetDatetime(uint32_t instance, rtc_datetime_t *datetime)
{

uint16_t year; /! Range from 0 to 99./
uint8_t month; /! Range from 1 to 12./
uint8_t day; /! Range from 1 to 31 (depending on month)./
uint8_t hour; /! Range from 0 to 23./
uint8_t minute; /! Range from 0 to 59./
uint8_t second; /! Range from 0 to 59./

//设置的时间要求是16机制的 要转化成16进制的
second int2hex(datetime- second);
hour int2hex(datetime- hour);
day int2hex(datetime- day);
month int2hex(datetime- month);
year int2hex(datetime- year);
minute int2hex(datetime- minute);

HAL_I2C_WriteTest(0x04,second);
HAL_I2C_WriteTest(0x05,minute);
HAL_I2C_WriteTest(0x06,hour);
HAL_I2C_WriteTest(0x07,day);
HAL_I2C_WriteTest(0x09,month);
HAL_I2C_WriteTest(0x0A,year);
return true;

}

/******************************************************************************

名称: RTC_DRV_GetDatetime

描述:

参数: [in] 无

 [out] 无

返回: 无
*******************************************************************************/
void RTC_DRV_GetDatetime(uint32_t instance, rtc_datetime_t *datetime)
{
char abuf[5];

HAL_I2C_ReadTest();//读取时间

//获取到的都是16机制的 要转化成10进制的
sprintf(abuf, %x ,g_master_rxBuff[0] 0x7f);
datetime- second atoi(abuf);

sprintf(abuf, %x ,g_master_rxBuff[1] 0x7f);
datetime- minute atoi(abuf);

sprintf(abuf, %x ,g_master_rxBuff[2] 0x3f);
datetime- hour atoi(abuf);

sprintf(abuf, %x ,g_master_rxBuff[3] 0x3f);
datetime- day atoi(abuf);

sprintf(abuf, %x ,g_master_rxBuff[5] 0x7f);
datetime- month atoi(abuf);

sprintf(abuf, %x ,g_master_rxBuff[6] 0x7f);
datetime- year atoi(abuf);

#if 1
printf(“year %2d,mon %2d,day %2d\\r\\n”,datetime- year,datetime- month,datetime- day);
printf(“hour %2d,min %2d,sec %2d\\r\\n”,datetime- hour,datetime- minute,datetime- second);
#endif

}
void HAL_I2cInit(void)
{
HAL_I2c_Init();
}