hi,
is there any readline /writeline implementation based on the asynchronous periph/uart implementation?
I want to use the uart in a arduino style and I miss an (blocking) interface like:
char buf[100]; int buf_size = 100; int timeout = 100; //ms int num_of_bytes = readline(uart, buf, buf_size, timeout);
also
int num_of_bytes_written = writeline(uart, line, line_len, timeout);
Best Christian
Hi Christian,
as far as I know it's not in riot directly, but you coult implement it in a couple of lines (simplified -> no error handling...):
char buf[100]; int num_of_bytes = readline_stdin(buf, sizeof(buf)); OR int num_of_bytes = readline(UART_x, buf, sizeof(buf);
int readline_stdin(char *buf, int size) { int i = 0; char c; do { c = getchar(); /** part of stdio.h */ buf[i++] = c; } while (c == '\n'); return i; }
int readline(uart_t uart, char *buf, int size) { int i = 0; char c; do { uart_read_blocking(uart, &c); buf[i++] = c; } while (c != '\n'); return i; }
same for writing...
Cheers, Hauke
Oh, forgot -> have a look at the system call _read and _write implementations (e.g. for the stm32f0), for the case UART0 is not defined, there you got a pretty good template how to implement some read/writeline features without using the uart_x_blocking functions....
Cheers, Hauke