This device driver writes data to and reads data from the UART on the ATmega128/103 chip. Both, input and output data is buffered and send resp. transmitted by interrupt routines.
Not all ioctl() function are fully implemented. New applications should use the USART device driver.
Modules | |
ATmega On-Chip UART Devices | |
UART Device Structures. | |
Data Structures | |
struct | _UARTDCB |
UART device control block structure. More... | |
struct | _UARTDCB |
UART device control block structure. More... | |
Defines | |
#define | HDLC_SF_ESCAPED 0x00002000UL |
#define | HDLC_SF_FLUSH 0x00001000UL |
#define | UART_HS_DCEFULL 0x0000001FUL |
#define | UART_HS_DCERTSCTS 0x00000003UL |
#define | UART_HS_DTEFULL 0x000003E0UL |
#define | UART_HS_DTERTSCTS 0x00000060UL |
#define | UART_HS_XONXOFF 0x00000400UL |
#define | UART_MF_BUFFERMASK 0x00300000UL |
#define | UART_MF_CONTROLMASK 0x00BC |
#define | UART_MF_COOKEDMODE 0x00020000UL |
#define | UART_MF_CTSCONTROL 0x00000002UL |
#define | UART_MF_CTSSENSE 0x00000040UL |
#define | UART_MF_DCDCONTROL 0x00000010UL |
#define | UART_MF_DCDSENSE 0x00000200UL |
#define | UART_MF_DSRCONTROL 0x00000008UL |
#define | UART_MF_DSRSENSE 0x00000100UL |
#define | UART_MF_DTRCONTROL 0x00000080UL |
#define | UART_MF_DTRSENSE 0x00000004UL |
#define | UART_MF_LINEBUFFER 0x00200000UL |
#define | UART_MF_LOCALECHO 0x00010000UL |
#define | UART_MF_NOBUFFER 0x00100000UL |
#define | UART_MF_RAWMODE 0x00400000UL |
#define | UART_MF_RTSCONTROL 0x00000020UL |
#define | UART_MF_RTSSENSE 0x00000001UL |
#define | UART_MF_SENSEMASK 0x0345 |
#define | UART_MF_XONXOFF 0x00000400UL |
#define | UART_SF_CTSOFF 0x00000002UL |
#define | UART_SF_DCDOFF 0x00000010UL |
#define | UART_SF_DSROFF 0x00000008UL |
#define | UART_SF_DTROFF 0x00000004UL |
#define | UART_SF_RTSOFF 0x00000001UL |
#define | UART_SF_RXDISABLED 0x00000080UL |
#define | UART_SF_TXDISABLED 0x00000040UL |
Typedefs | |
typedef _UARTDCB | UARTDCB |
#define HDLC_SF_ESCAPED 0x00002000UL |
Next character escaped.
#define HDLC_SF_FLUSH 0x00001000UL |
Waiting for next HDLC flag.
#define UART_HS_DCEFULL 0x0000001FUL |
Full DCE handshake.
#define UART_HS_DCERTSCTS 0x00000003UL |
RTS/CTS DCE handshake.
#define UART_HS_DTEFULL 0x000003E0UL |
Full DTE handshake.
#define UART_HS_DTERTSCTS 0x00000060UL |
RTS/CTS DTE handshake.
#define UART_HS_XONXOFF 0x00000400UL |
Software handshake.
#define UART_MF_BUFFERMASK 0x00300000UL |
Masks buffering mode flags.
#define UART_MF_CONTROLMASK 0x00BC |
Handshake control mask.
#define UART_MF_COOKEDMODE 0x00020000UL |
Should be used in stream, not device.
#define UART_MF_CTSCONTROL 0x00000002UL |
DCE output.
#define UART_MF_CTSSENSE 0x00000040UL |
DTE input.
#define UART_MF_DCDCONTROL 0x00000010UL |
DCE output.
#define UART_MF_DCDSENSE 0x00000200UL |
DTE input.
#define UART_MF_DSRCONTROL 0x00000008UL |
DCE output.
#define UART_MF_DSRSENSE 0x00000100UL |
DTE input.
#define UART_MF_DTRCONTROL 0x00000080UL |
DTE output.
#define UART_MF_DTRSENSE 0x00000004UL |
DCE input.
#define UART_MF_LINEBUFFER 0x00200000UL |
Line buffered.
#define UART_MF_LOCALECHO 0x00010000UL |
Should be used in stream, not device.
#define UART_MF_NOBUFFER 0x00100000UL |
No buffering.
#define UART_MF_RAWMODE 0x00400000UL |
Send data as raw, disables data encapsulation for device.
#define UART_MF_RTSCONTROL 0x00000020UL |
DTE output.
#define UART_MF_RTSSENSE 0x00000001UL |
DCE input, low on port bit is +12V, which means ON.
#define UART_MF_SENSEMASK 0x0345 |
Handshake sense mask.
#define UART_MF_XONXOFF 0x00000400UL |
Software handshake.
#define UART_SF_CTSOFF 0x00000002UL |
Set CTS line is off.
#define UART_SF_DCDOFF 0x00000010UL |
Set DCD line is off.
#define UART_SF_DSROFF 0x00000008UL |
Set DSR line is off.
#define UART_SF_DTROFF 0x00000004UL |
Set DTR line is off.
#define UART_SF_RTSOFF 0x00000001UL |
Set RTS line is off.
#define UART_SF_RXDISABLED 0x00000080UL |
Receiver disabled.
#define UART_SF_TXDISABLED 0x00000040UL |
Transmitter disabled.