Ensure that the UART port is available before writing

This commit is contained in:
nvt-se 2010-03-03 23:18:58 +00:00
parent b59845d117
commit 7543d53603

View File

@ -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);
}