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* updated with corrections in serial asynch apis.

pull/1297/head
akhilpanayam 2015-08-06 16:22:22 +05:30 committed by Karthik Purushothaman
parent 149244d474
commit 6b346253f2
1 changed files with 6 additions and 1 deletions
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7
libraries/mbed/targets/hal/TARGET_Atmel/TARGET_SAM0/serial_api.c
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@ -440,7 +440,7 @@ void serial_format(serial_t *obj, int data_bits, SerialParity parity, int stop_b
/* Set stopbits, character size and enable transceivers */ /* Set stopbits, character size and enable transceivers */
ctrlb = (uint32_t)pSERIAL_S(obj)->stopbits | (uint32_t)pSERIAL_S(obj)->character_size; ctrlb |= (pSERIAL_S(obj)->stopbits | pSERIAL_S(obj)->character_size);
/* Check parity mode bits */ /* Check parity mode bits */
if (pSERIAL_S(obj)->parity != USART_PARITY_NONE) { if (pSERIAL_S(obj)->parity != USART_PARITY_NONE) {
@ -950,14 +950,17 @@ int serial_rx_irq_handler_asynch(serial_t *obj)
if (error_code & SERCOM_USART_STATUS_FERR) { if (error_code & SERCOM_USART_STATUS_FERR) {
/* Store the error code and clear flag by writing 1 to it */ /* Store the error code and clear flag by writing 1 to it */
_USART(obj).STATUS.reg |= SERCOM_USART_STATUS_FERR; _USART(obj).STATUS.reg |= SERCOM_USART_STATUS_FERR;
serial_rx_abort_asynch(obj);
return SERIAL_EVENT_RX_FRAMING_ERROR; return SERIAL_EVENT_RX_FRAMING_ERROR;
} else if (error_code & SERCOM_USART_STATUS_BUFOVF) { } else if (error_code & SERCOM_USART_STATUS_BUFOVF) {
/* Store the error code and clear flag by writing 1 to it */ /* Store the error code and clear flag by writing 1 to it */
_USART(obj).STATUS.reg |= SERCOM_USART_STATUS_BUFOVF; _USART(obj).STATUS.reg |= SERCOM_USART_STATUS_BUFOVF;
serial_rx_abort_asynch(obj);
return SERIAL_EVENT_RX_OVERFLOW; return SERIAL_EVENT_RX_OVERFLOW;
} else if (error_code & SERCOM_USART_STATUS_PERR) { } else if (error_code & SERCOM_USART_STATUS_PERR) {
/* Store the error code and clear flag by writing 1 to it */ /* Store the error code and clear flag by writing 1 to it */
_USART(obj).STATUS.reg |= SERCOM_USART_STATUS_PERR; _USART(obj).STATUS.reg |= SERCOM_USART_STATUS_PERR;
serial_rx_abort_asynch(obj);
return SERIAL_EVENT_RX_PARITY_ERROR; return SERIAL_EVENT_RX_PARITY_ERROR;
} }
} }
@ -1036,6 +1039,7 @@ void serial_tx_abort_asynch(serial_t *obj)
/* Sanity check arguments */ /* Sanity check arguments */
MBED_ASSERT(obj); MBED_ASSERT(obj);
_USART(obj).INTFLAG.reg = SERCOM_USART_INTFLAG_TXC; _USART(obj).INTFLAG.reg = SERCOM_USART_INTFLAG_TXC;
_USART(obj).INTENCLR.reg = SERCOM_USART_INTFLAG_TXC;
obj->tx_buff.length = 0; obj->tx_buff.length = 0;
obj->rx_buff.pos = 0; obj->rx_buff.pos = 0;
@ -1047,6 +1051,7 @@ void serial_rx_abort_asynch(serial_t *obj)
/* Sanity check arguments */ /* Sanity check arguments */
MBED_ASSERT(obj); MBED_ASSERT(obj);
_USART(obj).INTFLAG.reg = SERCOM_USART_INTFLAG_RXC; _USART(obj).INTFLAG.reg = SERCOM_USART_INTFLAG_RXC;
_USART(obj).INTENCLR.reg = SERCOM_USART_INTFLAG_RXC;
obj->rx_buff.length = 0; obj->rx_buff.length = 0;
obj->rx_buff.pos = 0; obj->rx_buff.pos = 0;
} }