//*****************************************************************************
//
//! \brief Return the A/D conversion rate (sample/second.)The conversion rate
//! depends on the clock source of ADC clock.It needs about 38 ADC clocks to
//! complete an A/D conversion.
//!
//! \param None
//!
//! \return Conversion rate.
//
//*****************************************************************************
uint32_t DrvADC_GetConversionRate(void)
{
if( CLK->CLKSEL1_BITS.ADC_S == 0 ) /* external 12MHz crystal clock */
{
return (__XTAL/(CLK->CLKDIV_BITS.ADC_N + 1)/38);
}
if( CLK->CLKSEL1_BITS.ADC_S == 2 ) /* HCLK */
{
return (DrvSYS_GetHCLKFreq()/(CLK->CLKDIV_BITS.ADC_N + 1)/38);
}
else /* internal 22MHz RC oscillator clock */
{
return (__IRC22M/(CLK->CLKDIV_BITS.ADC_N + 1)/38);
}
}
uint8_t Read_24LC64(uint32_t address)
{
uint8_t TEMP;
//Open I2C1 and set clock = 50Kbps
SystemCoreClock = DrvSYS_GetHCLKFreq();
DrvI2C_Open(I2C_PORT1, 50000);
//send i2c start
DrvI2C_Ctrl(I2C_PORT1, 1, 0, 1, 0); //set start
while (I2C1->I2CON.SI == 0); //poll si flag
//send writer command
I2C1->I2CDAT = 0XA0;
DrvI2C_Ctrl(I2C_PORT1, 0, 0, 1, 0); //clr si
while( I2C1->I2CON.SI == 0 ); //poll si flag
//send address high
I2C1->I2CDAT = (address>>8)&0XFF;
DrvI2C_Ctrl(I2C_PORT1, 0, 0, 1, 1); //clr si and set ack
while( I2C1->I2CON.SI == 0 ); //poll si flag
//send address low
I2C1->I2CDAT = address&0XFF;
DrvI2C_Ctrl(I2C_PORT1, 0, 0, 1, 0); //clr si and set ack
while( I2C1->I2CON.SI == 0 ); //poll si flag
//send start flag
DrvI2C_Ctrl(I2C_PORT1, 1, 0, 1, 0); //clr si and send start
while( I2C1->I2CON.SI == 0 ); //poll si flag
//send read command
I2C1->I2CDAT = 0XA1;
DrvI2C_Ctrl(I2C_PORT1, 0, 0, 1, 1); //clr si
while( I2C1->I2CON.SI == 0 ); //poll si flag
//resive data
I2C1->I2CDAT = 0XFF;
DrvI2C_Ctrl(I2C_PORT1, 0, 0, 1, 0); //clr si
while( I2C1->I2CON.SI == 0 ); //poll si flag
TEMP= I2C1->I2CDAT;
//send i2c stop
DrvI2C_Ctrl(I2C_PORT1, 0, 1, 1, 0); //clr si and set stop
while( I2C1->I2CON.STO);
DrvI2C_Close(I2C_PORT1);
return TEMP;
}
void Write_24LC64(uint32_t address,uint8_t data )
{
uint32_t i;
SystemCoreClock = DrvSYS_GetHCLKFreq();
//Open I2C1 and set clock = 50Kbps
DrvI2C_Open(I2C_PORT1, 50000);
//send i2c start
DrvI2C_Ctrl(I2C_PORT1, 1, 0, 0, 0); //set start
while (I2C1->I2CON.SI == 0); //poll si flag
//send writer command
I2C1->I2CDAT = 0XA0; //send writer command
DrvI2C_Ctrl(I2C_PORT1, 0, 0, 1, 0); //clr si flag
while( I2C1->I2CON.SI == 0 ); //poll si flag
//send address high
I2C1->I2CDAT = (address>>8)&0XFF;
DrvI2C_Ctrl(I2C_PORT1, 0, 0, 1, 1); //clr si and set ack
while( I2C1->I2CON.SI == 0 ); //poll si flag
//send address low
I2C1->I2CDAT = address&0XFF;
DrvI2C_Ctrl(I2C_PORT1, 0, 0, 1, 1); //clr si and set ack
while( I2C1->I2CON.SI == 0 ); //poll si flag
//send data
I2C1->I2CDAT = data; //write data to
DrvI2C_Ctrl(I2C_PORT1, 0, 0, 1, 1); //clr si and set ack
while( I2C1->I2CON.SI == 0 ); //poll si flag
//send i2c stop
DrvI2C_Ctrl(I2C_PORT1, 0, 1, 1, 0); //send stop
while( I2C1->I2CON.STO);
//while( I2C1->CON.SI == 0 );
for(i=0; i<60; i++);
DrvI2C_Close(I2C_PORT1);
for(i=0; i<6000; i++);
for(i=0; i<6000; i++);
}
