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tu_fifo_buffer_info_t struct
Syntax
typedef struct
{
uint16_t len_lin ;
uint16_t len_wrap ;
void * ptr_lin ;
void * ptr_wrap ;
} tu_fifo_buffer_info_t;
Fields
Field
Declared as
uint16_t
uint16_t
Related Functions
Found 2 other functions taking a tu_fifo_buffer_info_t
argument:
Function
Description
Get read info Returns the length and pointer from which bytes can be read in a linear manner. This is of major interest for DMA transmissions. If returned length is zero the corresponding pointer is invalid. The read pointer does NOT get advanced, use tu_fifo_advance_read_pointer() to do so!
Get linear write info Returns the length and pointer to which bytes can be written into FIFO in a linear manner. This is of major interest for DMA transmissions not using circular mode. If a returned length is zero the corresponding pointer is invalid. The returned lengths summed up are the currently free space in the FIFO. The write pointer does NOT get advanced, use tu_fifo_advance_write_pointer() to do so! TAKE CARE TO NOT OVERFLOW THE BUFFER MORE THAN TWO TIMES THE FIFO DEPTH - IT CAN NOT RECOVERE OTHERWISE!