Ring Buffer | |
#define | USART_RXBUFSIZ 256 |
Initial receive buffer size. | |
#define | USART_RXHIWMARK 240 |
Receiver's initial high water mark. | |
#define | USART_RXLOWMARK 208 |
Receiver's initial low water mark. | |
#define | USART_TXBUFSIZ 64 |
Initial transmit buffer size. | |
#define | USART_TXHIWMARK 56 |
Transmitter's initial high water mark. | |
#define | USART_TXLOWMARK 40 |
Transmitter's initial low water mark. | |
typedef _RINGBUF | RINGBUF |
Character device ring buffer type. | |
Initial UART Configuration | |
#define | USART_INITSPEED 115200 |
Initial bit rate. | |
Function Prototypes | |
*int | UsartInit (NUTDEVICE *dev) |
Initialize the USART device. | |
int | UsartIOCtl (NUTDEVICE *dev, int req, void *conf) |
Perform USART control functions. | |
int | UsartRead (NUTFILE *fp, void *buffer, int size) |
Read from device. | |
int | UsartWrite (NUTFILE *fp, CONST void *buffer, int len) |
Write a device or file. | |
NUTFILE * | UsartOpen (NUTDEVICE *dev, CONST char *name, int mode, int acc) |
Open an USART device. | |
int | UsartClose (NUTFILE *fp) |
Close an USART device. | |
long | UsartSize (NUTFILE *fp) |
Retrieves the number of characters in input buffer. | |
Defines | |
#define | USART_MF_RTSCONTROL |
#define | USART_MF_CTSSENSE |
#define | USART_MF_DTRCONTROL |
#define | USART_MF_DSRSENSE |
#define | USART_MF_DCDSENSE |
#define | USART_MF_SENSEMASK |
#define | USART_MF_CONTROLMASK |
#define | USART_MF_XONXOFF |
Software handshake. | |
#define | USART_MF_LOCALECHO |
#define | USART_MF_COOKEDMODE |
#define | USART_MF_NOBUFFER |
#define | USART_MF_LINEBUFFER |
#define | USART_MF_BUFFERMASK |
#define | USART_MF_HALFDUPLEX |
#define | USART_MF_BLOCKREAD |
#define | USART_SF_RTSOFF |
#define | USART_SF_CTSOFF |
#define | USART_SF_DTROFF |
#define | USART_SF_DSROFF |
#define | USART_SF_DCDOFF |
#define | USART_SF_TXDISABLED |
#define | USART_SF_RXDISABLED |
Typedefs | |
typedef _USARTDCB | USARTDCB |