/// <summary>
/// Sets the baudrate to be used by the UART block
/// </summary>
/// <param name="rate">Baudrate - enumerated type</param>
public void UART_setBaudRate(UART_baudRate rate) //uses double speed operation(UCSR1A = 0x02)
{
UInt16 BR = (UInt16)(clockSpeed_Hz / (8 * (int)rate) - 1);
byte[] b = BitConverter.GetBytes(BR);
msgSend(section.UART, (byte)UART_Instr.setBaud, b);
}
//methods
/// <summary>
/// Sets up the UART, causes the functions of the pins PD2/PD3 to be overridden by the UART
/// </summary>
/// <param name="rate">Baudrate to be used</param>
/// <param name="stopbits">Number of stop bits to be used (1 or 2)</param>
public void UART_setup(UART_baudRate rate, UART_stopBits stopbits)
{
UART_enabled = true;
byte UCSR1A = 0x02; //double speed mode enabled (always better accuracy at 8MHz)
byte UCSR1B = 0xD8; //Set interrupts to enabled, enable transmitter and reciever (data reg empty interrupt disabled)
byte UCSR1C = (byte)(0x06 + (byte)stopbits); //async operation, parity disabled, 8bit frames, settable stopbits
byte UCSR1D = 0x00; //CTS/RTS disabled
//double speed baudrate calc
UInt16 BR = (UInt16)(clockSpeed_Hz / (8 * (int)rate) - 1);
byte[] b = BitConverter.GetBytes(BR);
//data expected: UCSR1A UCSR1B UCSR1C UCSR1D UBRR1H UBRR1L
byte[] data = { UCSR1A, UCSR1B, UCSR1C, UCSR1D, b[0], b[1] };
msgSend(section.UART, (byte)UART_Instr.setRegisters, data);
}
//methods
/// <summary>
/// Sets up the UART, causes the functions of the pins PD2/PD3 to be overridden by the UART
/// </summary>
/// <param name="rate">Baudrate to be used</param>
/// <param name="stopbits">Number of stop bits to be used (1 or 2)</param>
public void UART_setup(UART_baudRate rate, UART_stopBits stopbits)
{
UART_enabled = true;
byte UCSR1A = 0x02; //double speed mode enabled (always better accuracy at 8MHz)
byte UCSR1B = 0xD8; //Set interrupts to enabled, enable transmitter and reciever (data reg empty interrupt disabled)
byte UCSR1C = (byte)(0x06 + (byte)stopbits); //async operation, parity disabled, 8bit frames, settable stopbits
byte UCSR1D = 0x00; //CTS/RTS disabled
//double speed baudrate calc
UInt16 BR = (UInt16)(clockSpeed_Hz / (8 * (int)rate) - 1);
byte[] b = BitConverter.GetBytes(BR);
//data expected: UCSR1A UCSR1B UCSR1C UCSR1D UBRR1H UBRR1L
byte[] data = { UCSR1A, UCSR1B, UCSR1C, UCSR1D, b[0], b[1] };
msgSend(section.UART, (byte)UART_Instr.setRegisters, data);
}
//uses double speed operation(UCSR1A = 0x02)
/// <summary>
/// Sets the baudrate to be used by the UART block
/// </summary>
/// <param name="rate">Baudrate - enumerated type</param>
public void UART_setBaudRate(UART_baudRate rate)
{
UInt16 BR = (UInt16)(clockSpeed_Hz / (8 * (int)rate) - 1);
byte[] b = BitConverter.GetBytes(BR);
msgSend(section.UART, (byte)UART_Instr.setBaud, b);
}
