mirror of
https://github.com/oliverschmidt/contiki.git
synced 2024-12-22 10:30:13 +00:00
Ensure that the UART port is available before writing
This commit is contained in:
parent
b59845d117
commit
7543d53603
@ -26,7 +26,7 @@
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* @(#)$Id: uart1.c,v 1.16 2009/11/18 15:45:32 nifi Exp $
|
||||
* @(#)$Id: uart1.c,v 1.17 2010/03/03 23:18:58 nvt-se Exp $
|
||||
*/
|
||||
|
||||
/*
|
||||
@ -89,6 +89,9 @@ uart1_writeb(unsigned char c)
|
||||
the first byte into the UART. */
|
||||
if(transmitting == 0) {
|
||||
transmitting = 1;
|
||||
|
||||
/* Loop until the transmission buffer is available. */
|
||||
while((IFG2 & UTXIFG1) == 0);
|
||||
TXBUF1 = ringbuf_get(&txbuf);
|
||||
}
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user