Esempio n. 1
0
uint8_t TWI_WritePacket(const uint8_t SlaveAddress,
                        const uint8_t TimeoutMS,
                        const uint8_t* InternalAddress,
                        uint8_t InternalAddressLen,
                        const uint8_t* Buffer,
                        uint8_t Length)
{
	uint8_t ErrorCode;

	if ((ErrorCode = TWI_StartTransmission((SlaveAddress & TWI_DEVICE_ADDRESS_MASK) | TWI_ADDRESS_WRITE,
	                                       TimeoutMS)) == TWI_ERROR_NoError)
	{
		while (InternalAddressLen--)
		{
			if (!(TWI_SendByte(*(InternalAddress++))))
			{
				ErrorCode = TWI_ERROR_SlaveNAK;
				break;
			}
		}

		while (Length--)
		{
			if (!(TWI_SendByte(*(Buffer++))))
			{
				ErrorCode = TWI_ERROR_SlaveNAK;
				break;
			}
		}

		TWI_StopTransmission();
	}

	return ErrorCode;
}
Esempio n. 2
0
void Output_data()
{
	//Set the IO-Pins for the analog Multiplexer
	PORTD = DeviceConfig[10];
	
	//Send the frequency and formdata to the AD9833
	SPI_Send2Byte(DeviceConfig[0], DeviceConfig[1]); //Controllregister
	SPI_Send2Byte(DeviceConfig[4], DeviceConfig[5]); //Freg, LSB
	SPI_Send2Byte(DeviceConfig[2], DeviceConfig[3]); //Freg, MSB

	//Send the TWI-Data, but only if device is responding.
	if (TWI_StartTransmission(DigiPoti, 1) == 0)
	{
		for (int i = 0; i < 4; i++)
		{
			int PotiWert = i + 6;
	
			TWI_SendByte(0x10 | i);
			TWI_SendByte(DeviceConfig[PotiWert]);
		}

		TWI_SendByte(0x78);
		TWI_SendByte(0x01);
		TWI_StopTransmission();
	}
	else
	{
		ReturnError(0x03);
	}
	return;
}
Esempio n. 3
0
void DS1307_SetDate(const uint8_t Day,
                    const uint8_t Month,
                    const uint8_t Year)
{
#if defined(DUMMY_RTC)
	return;
#endif

	DS1307_DateRegs_t CurrentRTCDate;
	CurrentRTCDate.Byte1.Fields.TenDay   = (Day / 10);
	CurrentRTCDate.Byte1.Fields.Day      = (Day % 10);
	CurrentRTCDate.Byte2.Fields.TenMonth = (Month / 10);
	CurrentRTCDate.Byte2.Fields.Month    = (Month % 10);
	CurrentRTCDate.Byte3.Fields.TenYear  = (Year / 10);
	CurrentRTCDate.Byte3.Fields.Year     = (Year % 10);

	if (TWI_StartTransmission(DS1307_ADDRESS_WRITE, 10))
	{
		TWI_SendByte(DS1307_DATEREG_START);
		TWI_SendByte(CurrentRTCDate.Byte1.IntVal);
		TWI_SendByte(CurrentRTCDate.Byte2.IntVal);
		TWI_SendByte(CurrentRTCDate.Byte3.IntVal);

		TWI_StopTransmission();
	}
}
Esempio n. 4
0
void DS1307_SetTime(const uint8_t Hour,
                    const uint8_t Minute,
                    const uint8_t Second)
{
#if defined(DUMMY_RTC)
	return;
#endif

	DS1307_TimeRegs_t CurrentRTCTime;
	CurrentRTCTime.Byte1.Fields.TenSec  = (Second / 10);
	CurrentRTCTime.Byte1.Fields.Sec     = (Second % 10);
	CurrentRTCTime.Byte1.Fields.CH      = false;
	CurrentRTCTime.Byte2.Fields.TenMin  = (Minute / 10);
	CurrentRTCTime.Byte2.Fields.Min     = (Minute % 10);
	CurrentRTCTime.Byte3.Fields.TenHour = (Hour / 10);
	CurrentRTCTime.Byte3.Fields.Hour    = (Hour % 10);
	CurrentRTCTime.Byte3.Fields.TwelveHourMode = false;

	if (TWI_StartTransmission(DS1307_ADDRESS_WRITE, 10))
	{
		TWI_SendByte(DS1307_TIMEREG_START);
		TWI_SendByte(CurrentRTCTime.Byte1.IntVal);
		TWI_SendByte(CurrentRTCTime.Byte2.IntVal);
		TWI_SendByte(CurrentRTCTime.Byte3.IntVal);

		TWI_StopTransmission();
	}
}
Esempio n. 5
0
/*
description:向eeprom读一个页内的部分或者全部数据
return:0--写数据正常结束
        1--I2C启动错误
        2--无ACK
*/
uint8_t eeprom_read_sequential(uint16_t addr,uint16_t  num,uint8_t *data)
{
  uint8_t result = 0;
  uint8_t temp = 0;
  uint16_t i = 0;

  while(is_eeprom_busy());
    
  result = TWI_START();
  if(result != TWI_READY)
    return 1;

#if(MEM_SIZE > SIZE_64K)
  if(eeprom_num == 1)
    temp = DEV_ADDR1|0;
  else
    temp = DEV_ADDR2|0;
#else
  temp = DEV_ADDR|0;
#endif
  result = TWI_SendByte(temp);
  if(result != TWI_ACK)
    return 2;

  result = TWI_SendByte((uint8_t)(addr>>8));
  result = TWI_SendByte((uint8_t)(addr));
  if(result != TWI_ACK)
    return 2;

  result = TWI_START();
#if(MEM_SIZE > SIZE_64K)
  if(eeprom_num == 1)
    temp = DEV_ADDR1|1;
  else
    temp = DEV_ADDR2|1;
#else
  temp = DEV_ADDR|1;
#endif
  result = TWI_SendByte(temp);
  if(result != TWI_ACK)
    return 2;

  for(i = 0; i < num; i++)
  {
    data[i] = TWI_ReceiveByte();
    if(i != num-1)
      TWI_SendACK();
    else
      TWI_SendNACK();
  }
            
  TWI_STOP();
//  delay_5ms();
  return 0;
}
Esempio n. 6
0
/*
description:向eeprom读一个字节数据
return:0--写数据正常结束
        1--I2C启动错误
        2--无ACK
*/
uint8_t eeprom_read_byte(uint16_t addr,uint8_t *data)
{
  uint8_t result = 0;
  uint8_t temp = 0;

  while(is_eeprom_busy());

  result = TWI_START();
  if(result != TWI_READY)
    return 1;

#if(MEM_SIZE > SIZE_64K)
  if(eeprom_num == 1)
    temp = DEV_ADDR1|0;
  else
    temp = DEV_ADDR2|0;
#else
  temp = DEV_ADDR|0;
#endif
  result = TWI_SendByte(temp);
  if(result != TWI_ACK)
    return 2;

  result = TWI_SendByte((uint8_t)(addr>>8));
  result = TWI_SendByte((uint8_t)(addr));
  if(result != TWI_ACK)
    return 2;

  result = TWI_START();
#if(MEM_SIZE > SIZE_64K)
  if(eeprom_num == 1)
    temp = DEV_ADDR1|1;
  else
    temp = DEV_ADDR2|1;
#else
  temp = DEV_ADDR|1;
#endif
  result = TWI_SendByte(temp);
  if(result != TWI_ACK)
    return 2;


  *data = TWI_ReceiveByte();

  TWI_SendNACK();            
  TWI_STOP();
  return 0;
}
Esempio n. 7
0
void DS1307_GetTime(uint8_t* const Hour,
                    uint8_t* const Minute,
                    uint8_t* const Second)
{
#if defined(DUMMY_RTC)
	*Hour   = 1;
	*Minute = 1;
	*Second = 1;
	return;
#endif

	if (TWI_StartTransmission(DS1307_ADDRESS_WRITE, 10))
	{
		TWI_SendByte(DS1307_TIMEREG_START);

		TWI_StopTransmission();
	}

	DS1307_TimeRegs_t CurrentRTCTime;

	if (TWI_StartTransmission(DS1307_ADDRESS_READ, 10))
	{
		TWI_ReceiveByte(&CurrentRTCTime.Byte1.IntVal, false);
		TWI_ReceiveByte(&CurrentRTCTime.Byte2.IntVal, false);
		TWI_ReceiveByte(&CurrentRTCTime.Byte3.IntVal, true);

		TWI_StopTransmission();
	}

	*Second  = (CurrentRTCTime.Byte1.Fields.TenSec  * 10) + CurrentRTCTime.Byte1.Fields.Sec;
	*Minute  = (CurrentRTCTime.Byte2.Fields.TenMin  * 10) + CurrentRTCTime.Byte2.Fields.Min;
	*Hour    = (CurrentRTCTime.Byte3.Fields.TenHour * 10) + CurrentRTCTime.Byte3.Fields.Hour;
}
Esempio n. 8
0
void DS1307_GetDate(uint8_t* const Day,
                    uint8_t* const Month,
                    uint8_t* const Year)
{
#if defined(DUMMY_RTC)
	*Day   = 1;
	*Month = 1;
	*Year  = 1;
	return;
#endif

	if (TWI_StartTransmission(DS1307_ADDRESS_WRITE, 10))
	{
		TWI_SendByte(DS1307_DATEREG_START);

		TWI_StopTransmission();
	}

	DS1307_DateRegs_t CurrentRTCDate;

	if (TWI_StartTransmission(DS1307_ADDRESS_READ, 10))
	{
		TWI_ReceiveByte(&CurrentRTCDate.Byte1.IntVal, false);
		TWI_ReceiveByte(&CurrentRTCDate.Byte2.IntVal, false);
		TWI_ReceiveByte(&CurrentRTCDate.Byte3.IntVal, true);

		TWI_StopTransmission();
	}

	*Day    = (CurrentRTCDate.Byte1.Fields.TenDay   * 10) + CurrentRTCDate.Byte1.Fields.Day;
	*Month  = (CurrentRTCDate.Byte2.Fields.TenMonth * 10) + CurrentRTCDate.Byte2.Fields.Month;
	*Year   = (CurrentRTCDate.Byte3.Fields.TenYear  * 10) + CurrentRTCDate.Byte3.Fields.Year;
}
Esempio n. 9
0
/*
description:向eeprom一页内写入部分或者全部数据
return:0--写数据正常结束
        1--I2C启动错误
        2--无ACK
*/
uint8_t eeprom_write_page(uint16_t page_num,uint8_t offshit,uint8_t num,uint8_t *data)
{
  uint8_t result = 0;
  uint8_t temp = 0;
  uint8_t i = 0;
  uint16_t addr = page_num*PAGE_SIZE+offshit;

  while(is_eeprom_busy());

  result = TWI_START();
  if(result != TWI_READY)
    return 1;

#if(MEM_SIZE > SIZE_64K)
  if(eeprom_num == 1)
    temp = DEV_ADDR1|0;
  else
    temp = DEV_ADDR2|0;
#else
  temp = DEV_ADDR|0;
#endif
  result = TWI_SendByte(temp);
  if(result != TWI_ACK)
    return 2;

  result = TWI_SendByte((uint8_t)(addr>>8));
  if(result != TWI_ACK)
    return 2;

  result = TWI_SendByte((uint8_t)(addr));
  if(result != TWI_ACK)
    return 2;

  for(i = 0; i < num; i++)
  {
    result = TWI_SendByte(data[i]);
    if(result != TWI_ACK)
      return 2;
  }
          
  TWI_STOP();
//  delay_5ms();
  return 0;
}
Esempio n. 10
0
/*
description:向eeprom写一个字节数据
return:0--写数据正常结束
        1--I2C启动错误
        2--无ACK
*/
uint8_t eeprom_write_byte(uint16_t addr,uint8_t data)
{
  uint8_t result = 0;
  uint8_t temp = 0;

  while(is_eeprom_busy());

  result = TWI_START();
  if(result != TWI_READY)
    return 1;

#if(MEM_SIZE > SIZE_64K)
  if(eeprom_num == 1)
    temp = DEV_ADDR1|0;
  else
    temp = DEV_ADDR2|0;
#else
  temp = DEV_ADDR|0;
#endif

  result = TWI_SendByte(temp);
  if(result != TWI_ACK)
    return 2;

  result = TWI_SendByte((uint8_t)(addr>>8));
  if(result != TWI_ACK)
    return 2;

  result = TWI_SendByte((uint8_t)(addr));
  if(result != TWI_ACK)
    return 2;

  result = TWI_SendByte(data);
  if(result != TWI_ACK)
    return 2;
           
  TWI_STOP();
//  delay_5ms();
  return 0;
}
Esempio n. 11
0
uint8_t TWI_ReadPacket(TWI_t* const TWI,
                       const uint8_t SlaveAddress,
                       const uint8_t TimeoutMS,
                       const uint8_t* InternalAddress,
                       uint8_t InternalAddressLen,
                       uint8_t* Buffer,
                       uint16_t Length)
{
	uint8_t ErrorCode;

	if ((ErrorCode = TWI_StartTransmission(TWI, (SlaveAddress & TWI_DEVICE_ADDRESS_MASK) | TWI_ADDRESS_WRITE,
	                                       TimeoutMS)) == TWI_ERROR_NoError)
	{
		while (InternalAddressLen--)
		{
			if (!(TWI_SendByte(TWI, *(InternalAddress++))))
			{
				ErrorCode = TWI_ERROR_SlaveNAK;
				break;
			}
		}

		if ((ErrorCode = TWI_StartTransmission(TWI, (SlaveAddress & TWI_DEVICE_ADDRESS_MASK) | TWI_ADDRESS_READ,
		                                       TimeoutMS)) == TWI_ERROR_NoError)
		{
			while (Length--)
			{
				if (!(TWI_ReceiveByte(TWI, Buffer++, (Length == 0))))
				{
					ErrorCode = TWI_ERROR_SlaveNAK;
					break;
				}
			}
		}

		TWI_StopTransmission(TWI);
	}

	return ErrorCode;
}
Esempio n. 12
0
/*
description:查询eeprom写周期是否结束
return:0-写周期结束
       1-写周期没有结束
*/
uint8_t is_eeprom_busy(void)
{
  uint8_t result = 0;
  uint8_t temp = 0;

  result = TWI_START();
  if(result != TWI_READY)
    return 1;
#if(MEM_SIZE > SIZE_64K)
  if(eeprom_num == 1)
    temp = DEV_ADDR1|0;
  else
    temp = DEV_ADDR2|0;
#else
  temp = DEV_ADDR|0;
#endif
  result = TWI_SendByte(temp);
  if(result != TWI_ACK)
    return 2;

  return 0;
}