Modules | |
Device uart0 | |
Data Structures | |
struct | _UARTDCB |
UART device control block structure. More... | |
struct | _UARTDCB |
UART device control block structure. More... | |
Typedefs | |
typedef struct _UARTDCB | UARTDCB |
Functions | |
int | UartAvrInput (NUTDEVICE *dev) |
Wait for input. More... | |
int | UartAvrOutput (NUTDEVICE *dev) |
Initiate output. More... | |
int | UartAvrFlush (NUTDEVICE *dev) |
Wait for output buffer empty. More... | |
int | UartAvrIOCtl (NUTDEVICE *dev, int req, void *conf) |
Perform on-chip UART control functions. More... | |
int | UartAvrInit (NUTDEVICE *dev) |
Initialize on chip uart device. More... |
This stream device driver writes data to and reads data from the UART on the ATmega 103 chip. Both, input and output data is buffered and send resp. transmitted by interrupt routines.
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UART device control block type. |
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Wait for output buffer empty.
If the output buffer contains any data, the calling thread is suspended until all data has been transmitted.
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Perform on-chip UART control functions.
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Initialize on chip uart device.
Prepares the device for subsequent reading or writing. Enables UART transmitter and receiver interrupts. Applications should not use this function, but call NutDeviceOpen().
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Wait for input.
This function checks the input buffer for any data. If the buffer is empty, the calling thread will be blocked until at least one new character is received.
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Initiate output.
This function checks the output buffer for any data. If the buffer contains at least one character, the transmitter is started, if not already running. The function returns immediately, without waiting for the character being completely transmitted. Any remaining characters in the output buffer are transmitted in the background.
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