uint8_t* WriteReadToNrf(uint8_t ReadWrite, uint8_t reg, uint8_t *DataRW, uint8_t DataRWlength)
{
if(ReadWrite == W)
{
reg = W_REGISTER + reg;
}
static uint8_t ret[32];
_delay_us(10);
CLEAR_CSN;
_delay_us(10);
WriteByteSPI(reg);
_delay_us(10);
int i;
for(i = 0; i < DataRWlength; i++)
{
if(ReadWrite ==R && reg != W_TX_PAYLOAD)
{
ret[i] = WriteByteSPI(NOP);
_delay_us(10);
}
else
{
WriteByteSPI(DataRW[i]);
_delay_us(10);
}
}
SET_CSN;
return ret;
}
void reset(void)
{
_delay_us(10);
CLEAR_CSN;
_delay_us(10);
WriteByteSPI(W_REGISTER + STATUS);
_delay_us(10);
WriteByteSPI(0x70);
_delay_us(10);
SET_CSN;
}
void WriteToNrf(uint8_t reg, uint8_t data)
{
_delay_us(10);
CLEAR_CSN;
_delay_us(10);
WriteByteSPI(W_REGISTER + reg);
_delay_us(10);
WriteByteSPI(data);
_delay_us(10);
SET_CSN;
}
uint8_t GetRegister(uint8_t reg)
{
_delay_us(10);
CLEAR_CSN;
_delay_us(10);
WriteByteSPI(R_REGISTER + reg);
_delay_us(10);
reg=WriteByteSPI(NOP);
_delay_us(10);
SET_CSN;
return reg;
}
/* in SPI write mode CPOL=0 CPHA=0, write msb bit first, write msb byte first */
void _AD9911_write( uint8_t addr, uint32_t data )
{
uint8_t AD9911_cmd, len;
int i;
if( addr > AD9911_MAXREG )
return;
// SPI CPOL=0 CPHA=0
SPCR = (1<<SPE)|(1<<MSTR)|(0<<SPR1)|(0<<SPR0)|(0<<CPOL)|(0<<CPHA);
PORTB &= ~(1<<0); // ss low
AD9911_cmd = addr & AD9911_addressmask;
if( addr > 7 || addr == 4 )
len = 4;
else if( addr == 7 || addr == 5 || addr == 2 )
len = 2;
else if( addr == 0 )
len = 1;
else
len = 3;
WriteByteSPI( AD9911_cmd );
for(i=len-1;i >= 0;i--)
{
WriteByteSPI( (uint8_t)((data>>(8*i)) & 0xff) );
}
PORTB |= (1<<0); // ss high
}
/* in SPI read mode CPOL=1 CPHA=1, read msb bit first, read msb byte first */
void _AD9911_read( uint8_t addr, uint32_t *data )
{
uint8_t AD9911_cmd, len;
int i;
if( addr > AD9911_MAXREG )
return;
// SPI CPOL=1 CPHA=1
SPCR = (1<<SPE)|(1<<MSTR)|(0<<SPR1)|(0<<SPR0)|(1<<CPOL)|(1<<CPHA);
PORTB &= ~(1<<0); // ss low
AD9911_cmd = addr & AD9911_addressmask;
AD9911_cmd |= AD9911_RWb;
if( addr > 7 || addr == 4 )
len = 4;
else if( addr == 7 || addr == 5 || addr == 2 )
len = 2;
else if( addr == 0 )
len = 1;
else
len = 3;
WriteByteSPI( AD9911_cmd );
*data = 0;
for(i=len-1;i >= 0;i--)
{
*data |= ReadByteSPI(0)<<(8*i);
}
PORTB |= (1<<0); // ss high
}
/*--------------------------------------------------------------------------------------------------
Name : LCD_writeData
Description : Sends Data to display controller.
Argument(s) : Data -> Data to be sent
Return value : None.
--------------------------------------------------------------------------------------------------*/
void LCD_writeData ( unsigned char Data )
{
CLEAR_SCE_PIN; //enable LCD
SET_DC_PIN; //set LCD in Data mode
// Send data to display controller.
WriteByteSPI(Data);
SET_SCE_PIN; //disable LCD
}
/*--------------------------------------------------------------------------------------------------
Name : LCD_writeCommand
Description : Sends command to display controller.
Argument(s) : command -> command to be sent
Return value : None.
--------------------------------------------------------------------------------------------------*/
void LCD_writeCommand ( unsigned char command )
{
CLEAR_SCE_PIN; //enable LCD
CLEAR_DC_PIN; //set LCD in command mode
// Send data to display controller.
WriteByteSPI(command);
SET_SCE_PIN; //disable LCD
}
