diff options
| -rw-r--r-- | nuttx/arch/arm/src/tiva/tiva_serial.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/nuttx/arch/arm/src/tiva/tiva_serial.c b/nuttx/arch/arm/src/tiva/tiva_serial.c index a84e71763..8fd78cf5e 100644 --- a/nuttx/arch/arm/src/tiva/tiva_serial.c +++ b/nuttx/arch/arm/src/tiva/tiva_serial.c @@ -685,7 +685,7 @@ static inline void up_restoreuartint(struct up_dev_s *priv, uint32_t im) #ifdef HAVE_SERIAL_CONSOLE static inline void up_waittxnotfull(struct up_dev_s *priv) { - int tmp; + volatile int tmp; /* Limit how long we will wait for the TX available condition */ @@ -1355,8 +1355,6 @@ int up_putc(int ch) uint32_t im; up_disableuartint(priv, &im); - up_waittxnotfull(priv); - up_serialout(priv, TIVA_UART_DR_OFFSET, (uint32_t)ch); /* Check for LF */ @@ -1369,6 +1367,9 @@ int up_putc(int ch) } up_waittxnotfull(priv); + up_serialout(priv, TIVA_UART_DR_OFFSET, (uint32_t)ch); + + up_waittxnotfull(priv); up_restoreuartint(priv, im); #endif return ch; |